More particularly, the present invention relates to a cap device for bottles containing therein a variety of materials, such as drinks, liquid medicines or liquid chemicals, which cap device is capable of mixing an additive contained therein with a material contained in a bottle to prepare a mixture in accordance with a simple and partial rotating action of the cap device relative to the bottle, performed by a user, thus allowing the user to easily prepare the mixture just before drinking or using the mixture.

Background Art In the prior art, most of conventional disposable bottles circulated and sold in markets each contain therein only a single kind of material, such as a drink, a liquid medicine or a liquid chemical.

Of course, a variety of mixtures may be prepared by manufacturers at factories and marketed in a bottled state. However, the mixtures which are prepared by the manufacturers and marketed in the bottled state are problematic in that the properties of ingredients of the bottled mixtures may be gradually degraded as time goes by, in addition to change in colors of the mixtures. Furthermore, the bottled mixtures may generate floating matters and deposits therein with passage of time.

Therefore, it is necessary for manufacturers of additives and bottled

materials to separately contain the additives and materials in separate containers and bottles prior to marketing them, thus undesirably wasting natural resources due to the production of the separate containers and capped bottles. In addition, the adding of an additive from a separate container to a bottled material to mix them after removing a cap from the bottle is inconvenient to a user, because the user is forced to separately purchase and handle the additive container and the bottle.

Furthermore, it is almost impossible for the user to add a precise amount of the additive from the separate container to the material contained in the bottle, so that the user roughly measures the amount of the additive to be added to the bottled material. Therefore, in the case of mixing of an additive with a bottled drink to produce a mixed beverage, the rough measurement of the amount of the additive may result in variations in taste and quality of the mixed beverage. In the case of mixing of an additive with a bottled liquid medicine or a bottled liquid chemical to produce a mixed medicine or a mixed chemical, the rough measurement of the amount of the additive may result in incomplete dissolution of effective ingredients of the additive in the medicine or the chemical and a failure of accomplishment of desired medical or chemical effects of the mixed medicine or the mixed chemical.

Therefore, it has been necessary to provide a bottle which contains a material therein, and has a means for containing one or two additives separate from the bottled material and being opened in accordance with a simple and partial rotating action thereof relative to the bottle, performed by the user, thus mixing the additives with the material inside the bottle to prepare a mixture, and allowing the user to easily prepare the mixture just before drinking or using the mixture.

Disclosure of the Invention Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and provides a cap device for bottles, which allows a user to mix an additive kept therein with a material, such as a drink, a liquid medicine or a liquid chemical kept in a bottle, to prepare a mixture within

the bottle before the user drinks or uses the mixture.

Thus, an object of the present invention is to provide a cap device for bottles, which allows the additive and the bottled material to be maintained in their respective pure states without being mixed together before the user adds the additive to the bottled material, thus being free from physical or chemical problems of degradation in the properties of ingredients, change in colors, and a generation of floating matters and deposits experienced in conventional bottled mixtures marketed in a bottled state, and which does not force the user to separately purchase and handle an additive container and a bottle containing the material, thus being convenient to the user, and which is free from excessive consumption of labor, time and natural resources due to the separate production of the containers for additives and capped bottles, and which allows the user to mix the precise amount of the additive with the bottled material to prepare the mixture, so that it is possible to prevent variations in taste and quality of the mixture in the case of preparing a mixed beverage through the mixing, and to prevent incomplete dissolution of effective ingredients of the additive in the bottled material or a failure of accomplishment of desired medical or chemical effects of the mixture in the case of preparing a mixed medicine or a mixed chemical through the mixing.

Another object of the present invention is to provide a cap device for bottles, which accomplishes the necessity of separate storage of an additive and a bottled material in a capped bottle before the additive is mixed with the bottled material.

A further object of the present invention is to provide a cap device for bottles, which smoothly and naturally removes a vacuum pressure from a cavity containing the additive therein in response to a rotating action of a cap body in which the cap body is rotated to move downward relative to the mouth of a bottle, thus allowing the user to easily and conveniently use the cap device, and which quickly removes the vacuum pressure from the cavity, thereby allowing the additive to smoothly flow from the cavity into the bottle through a lower end of a funnel part of the cap body in response to the rotating action of the cap body.

Yet another object of the present invention is to provide a cap device for bottles, which quickly discharges a liquid from a bottle as desired, and almost completely empties the bottle, and which prevents a malicious injection of harmful substances, such as poisonous substances, into the bottle, thus allowing a user to safely drink or use the liquid, and in which a pushing rod is projected from an inner surface of a neck of the bottle through an injection molding process, so that the bottle having the pushing rod is easily and simply produced without consumption of excessive time, thus improving workability and productivity while producing the bottles.

Still another object of the present invention is to provide a cap device for bottles, which contains two or more kinds of different additives therein when necessary, thus being more effectively and conveniently used, in comparison with a cap device containing one kind of additive.

Still another object of the present invention is to provide a cap device for bottles, which quickly discharges a mixture from the bottle after the additive of the cap device is mixed with the bottled material to prepare the mixture in the bottle.

Still another object of the present invention is to provide a cap device for bottles, which is freely used with containers having no threads at the mouths thereof, such as test tubes, and bottles having the threads at the mouths thereof.

In an aspect, the present invention provides a cap device for bottles, comprising: a cap body tightened to an externally threaded mouth of a bottle; a cylindrical part acting as an additive containing part, the cylindrical part being mounted to a lower surface of a top wall of the cap body so as to define a cavity therein to contain an additive in the cavity, with a plurality of additive discharging holes formed at a bottom wall of cylindrical part to allow the cavity to selectively communicate with an interior of the bottle ; a rotatable valve plate to selectively open or close the additive discharging holes of the cylindrical part, the valve plate having a plurality of openings corresponding to the additive discharging holes; and a valve control unit to rotate the valve plate to selectively align the openings of the valve plate with the additive discharging holes of the cylindrical part, thus opening

the additive discharging holes, the valve control unit being provided at the cylindrical part, the cap body, and the bottle.

When the cap body is rotated to move upward relative to the mouth of the bottle, the valve plate is rotated by the operation of the valve control unit to align the openings of the valve plate with the additive discharging holes of the cylindrical part, thus opening the additive discharging holes of the cylindrical part.

The additive is thus discharged from the cavity of the additive containing part into the bottle through the additive discharging holes of the cylindrical part, so that a precise amount of the additive is mixed with a bottled material to prepare a desired mixture in the bottle.

In an embodiment, the valve control unit comprises: a projection provided at a predetermined position on an upper surface of the valve plate; an actuating mechanism having a vertical lever standing in the cylindrical part to come into contact with the projection at a lower end thereof, a first pinion integrated with a top end of the vertical lever and rotatably mounted to a sidewall of the cylindrical part, and a second pinion rotatably mounted to the top wall of the cap body and engaging with the first pinion; a rack engaging with the second pinion, and movably passing a predetermined portion of the sidewall of the cylindrical part to reach a position around an inner surface of a neck of the bottle at an outside end thereof; and an actuating protrusion provided at a predetermined position of the inner surface of the neck of the bottle so as to actuate the outside end of the rack.

In another embodiment, the valve control unit comprises: a vertical shaft fixedly passing a center of the valve plate, and rotatably supported by top and bottom walls of the cylindrical part at upper and lower ends thereof, respectively; a driven gear mounted to the upper end of the vertical shaft; a drive gear rotatably set in the sidewall of the cylindrical part at a predetermined position such that the drive gear engages with the driven gear; and a partially toothed part provided on an inner surface of a neck of the bottle to engage with the drive gear.

In another aspect, the present invention provides a cap device for bottles, comprising: a cap body tightened to an externally threaded mouth of a bottle; a first

cam barrel having a cam slot and a projection on a sidewall thereof, the projection projecting outward from an upper part of the sidewall of the first cam barrel in a radial direction, such that the projection is stopped by a stop protrusion provided at an inner surface of a neck of the bottle so as to stop the first cam barrel in the neck of the bottle without allowing the first cam barrel to be rotated, with a plurality of additive discharging holes formed around a lower portion of the sidewall of the first cam barrel to allow an interior of the first cam barrel to communicate with an interior of the bottle, and a conical bottom closing a lower end of the first cam barrel; and a second cam barrel mounted to a lower surface of a top wall of the cap body and acting as an additive containing part to define a cavity therein to contain an additive in the cavity, the second cam barrel having a cam protrusion on an outer surface thereof such that the cam protrusion movably engages with the cam slot of the first cam barrel, with a partition wall provided in the second cam barrel to divide the cavity into a plurality of chambers.

When the cap body is rotated to move upward relative to the bottle, the second cam barrel is moved upward along with the cap body relative to the first cam barrel, so that the additive discharging holes of the first cam barrel are opened.

The additives are thus quickly discharged from the divided chambers of the cavity of the second cam barrel into the interior of the bottle. Therefore, it is possible to mix precise amounts of the additives with a bottled material to prepare a desired mixture.

In yet another aspect, the present invention provides a cap device for bottles, comprising: a cap body tightened to an externally threaded mouth of a bottle, with a funnel part integrally formed in the cap body to discharge an additive from the cap body into the bottle through a lower end thereof; a cap cover acting as an additive containing part, and assembled with the cap body to cover an open upper end of the cap body while defining a cavity inside both the cap body and the cap cover to contain the additive in the cavity; and a valve means for opening or closing the lower end of the funnel part of the cap body in accordance with a rotating action of the cap body relative to the externally threaded mouth of the

bottle.

In an embodiment, the valve means comprises: a gate unit having a cylindrical part engaging upward over the lower end of the funnel part of the cap body through a screw-type engagement, with a plurality of additive discharging holes formed around a lower portion of a sidewall of the cylindrical part, and a plurality of radial ribs extending outward from the lower portion of an external surface of the sidewall of the cylindrical part in radial directions such that outside ends of the radial ribs are supported on an inner surface of a neck of the bottle; an elastic member received in the cylindrical part of the gate unit; and a valve member received in the cylindrical part of the gate unit at a position between the lower end of the funnel part and the elastic member such that the valve member is elastically biased upward by the elastic member, thus opening or closing the additive discharging holes of the cylindrical part of the gate unit in accordance with the rotating action of the cap body relative to the externally threaded mouth of the bottle.

In another embodiment, the valve means comprises: a valve member having a valve part to be brought into close contact with or spaced apart from the lower end of the funnel part of the cap body, which acts as a valve seat, thus closing or opening the lower end of the funnel part in accordance with the rotating action of the cap body relative to the externally threaded mouth of the bottle; and a plurality of radial ribs extending outward from an external surface of the valve part in radial directions such that outside ends of the radial ribs are supported on an inner surface of a neck of the bottle.

In a further embodiment, the valve means comprises: an arc-shaped projection externally formed on a sidewall of the lower end of the funnel part of the cap body at a predetermined portion such that the arc-shaped projection has a predetermined length and a radius of curvature larger than a radius of rotation of the cap body, with the lower end of the funnel part being closed, and the arc-shaped projection being open; a breakable sheet provided at the arc-shaped projection to close the open projection; and a cutting blade projected from an inner surface of a

neck of the bottle at a position corresponding to the breakable sheet to break the breakable sheet in accordance with the rotating action of the cap body relative to the externally threaded mouth of the bottle.

In still another embodiment, the valve means comprises: a breakable sheet provided at the lower end of the funnel part of the cap body to close the lower end of the funnel part, and having a structure to be easily broken to open the lower end of the funnel part when the sheet is urged in a circumferential direction; a breaking ring provided at a predetermined position on an outside area of a lower surface of the breakable sheet; and a pushing rod projected from an inner surface of a neck of the bottle at a position corresponding to the breaking ring when the breaking ring is rotated to move upward along with the cap body, thus coming into contact with the breaking ring to push the ring in the circumferential direction.

The breaking ring has a structure to urge the breakable sheet in the circumferential direction. A protrusion is provided on the breakable sheet at a position around the breaking ring to support the breaking ring.

The breakable sheet has a breaking line which has a sine-curved line part and an edge line part, and along which the sheet is broken to form a large opening at the lower end of the funnel part when the breakable sheet is urged to be broken.

The cap device may further comprise : an externally threaded spout formed at a bottom of the bottle; a mixture dispensing means removably engaging with the externally threaded spout of the bottle; and a cup member removably fitted over a lower portion of a sidewall of the bottle to cover the mixture dispensing means.

In an embodiment, the mixture dispensing means comprises a mixture- dispensing piece having internal threads to engage with the externally threaded spout of the bottle.

In another embodiment, the mixture dispensing means comprises a mixture spray unit having internal threads to engage with the externally threaded spout of the bottle.

In a further embodiment, the cap body and the cap cover is assembled with each other by use of a threaded structure and a toothed structure.

In still another aspect, the present invention provides a cap device for bottles, having a cap body tightened to an externally threaded mouth of a bottle, with a funnel part integrally formed in the cap body to discharge an additive from the cap body into the bottle through a lower end thereof; a cap cover assembled with the cap body to cover an open upper end of the cap body while defining a cavity inside both the cap body and the cap cover to contain the additive in the cavity; and valve means for opening or closing the lower end of the funnel part of the cap body in accordance with a rotating action of the cap body relative to the externally threaded mouth of the bottle, wherein the valve means comprises a valve member having: a conical valve part to be brought into close contact with or spaced apart from the lower end of the funnel part of the cap body, thus closing or opening the lower end of the funnel part; a plurality of radial ribs extending outward from an external surface of the conical valve part in radial directions ; and a ring integrated with outside ends of the radial ribs so as to be supported on an inner surface of a neck of the bottle.

In an embodiment, the cap device further comprises: a sealing means provided at a junction between the valve member and the lower end of the funnel part of the cap body, thus accomplishing a sealing effect at the junction.

The sealing means comprises: a plugging shank of a conical valve body extending upward from a valve holder of the valve part, with an external thread formed around the plugging shank such that the external thread of the plugging shank has the same pitch as an internal thread of the lower end of the funnel part; and an engaging part formed on an internal surface of the lower end of the funnel part so as to engage with the external thread of the plugging shank.

In still another aspect, the present invention provides a cap device for bottles, comprising: a cap body having a cavity to contain an additive in the cavity and tightened to an externally threaded mouth of a bottle, with a funnel part integrally formed in the cap body to discharge the additive from the cavity into the bottle through a lower end thereof, and a small vent hole formed at a top surface of the cap body; a breakable sheet attached to the lower end of the funnel part to close

the lower end of the funnel part; a valve cock provided at the vent hole of the cap body to open or close the vent hole; a projection provided at a predetermined position on a top edge of the mouth of the bottle to thrust and open the valve cock; and a valve means having a structure capable of allowing a liquid to pass through it, and placed in a neck of the bottle, such that the valve means thrusts and breaks the breakable sheet when the cap body is rotated to move downward relative to the mouth of the bottle.

The valve means comprises: a conical valve part to thrust the breakable sheet upward to break the breakable sheet; a plurality of radial ribs extending upward from an external surface of the conical valve part in radial directions; and a ring integrated with outside ends of the radial ribs so as to be placed in the neck of the bottle.

In still another embodiment, the present invention provides a cap device for bottles, having a valve member seated in a neck of a bottle; a cap body tightened to an externally threaded mouth of a bottle and opened or closed at a lower end of a funnel part thereof by the valve member ; and a cap cover acting as an additive containing part and assembled with the cap body to define a cavity therein to contain an additive in the cavity, wherein the neck of the bottle is tapered downward on an inner surface thereof; the valve member is provided with a valve part at a center thereof to open or close the lower end of the funnel part of the cap body, with a plurality of radial ribs extending outward from an external surface of the valve part while defining a plurality of additive discharging holes between the radial ribs, the valve member also having a ring to surround outside ends of the radial rings, and a wedge-tipped shank vertically extending upward from a center of the valve part; a tapered surface is formed along an outer surface of the ring to correspond to the tapered inner surface of the neck of the bottle; and a vent hole is formed at a predetermined position of an upper end of the funnel part of the cap body.

When the cap body is rotated and removed from the mouth of the bottle, the wedge-tipped shank which is inserted in the funnel part of the cap body is not

separated from the cap body. Therefore, the valve member along with the cap body is removed from the mouth of the bottle.

When the wedge tip of the wedge-tipped shank passes the open lower end of the funnel part of the cap body, the wedge tip is elastically compressed to easily pass the lower end of the funnel part. However, when the wedge tip completely passes the lower end of the funnel part to reach the interior of the funnel part, the wedge tip elastically restores its original shape, so that the wedge tip is not likely to be easily removed from the funnel part. Therefore, when the cap body is removed from the mouth of the bottle, the valve member along with the cap body is removed from the mouth of the bottle.

Since the valve member is not left in the neck of the bottle, as described above, a user safely drinks or uses the mixture of the bottle.

In an embodiment, the cap device further comprises: a protective cover to receive the cap cover therein while holding the cap cover by means of upper locking means, and removably fitted over an upper part of the bottle by means of lower locking means.

The upper locking means comprises: a locking flange formed along an outer edge of a top wall of the cap cover acting as the additive containing part; and a locking groove formed around a corner of a depression provided at a lower surface of a top wall of the protective cover, such that the locking flange of the cap cover removably engages with the locking groove of the protective cover.

The lower locking means comprises: a locking flange formed around an inner surface of a lower edge of the protective cover ; and a locking groove formed around the upper part of the bottle, such that the locking flange of the protective cover is removably fitted over the locking groove of the bottle.

In still another aspect, the present invention provides a cap device for bottles, comprising: a cap cover acting as an additive containing part, and defining a cavity therein, with a partition wall provided in the cavity to divide the cavity into two chambers and to separately containing two different additives in the chambers; a first funnel part provided at a lower section of the cap cover ; a breakable sheet

having a structure to be easily broken by external impact, and provided at an open lower end of the first funnel part to close the open lower end of the first funnel part; a cap body assembled with a lower end of the cap cover, and externally tightened to an externally threaded mouth of a bottle; a second funnel part having the same shape as the first funnel part, and provided at an upper section of the cap body, such that the first and second funnel parts are spaced apart from each other or come into contact with each other ; and a means for breaking the breakable sheet to open the lower end of the first funnel part.

The breaking means comprises two breaking wedges which project upward from a support part to a predetermined height through a central opening of the second funnel part and have sharp tips, the support part being formed in an upper section of the cap body at a position under the second funnel part.

The cap device further comprises a removable stop band placed around a junction of the cap body and the cap cover so as to stop the cap cover.

The removable stop band is preferably provided with a weak portion at a predetermined position thereof, so that the user easily breaks the stop band, when necessary.

In still another aspect, the present invention provides a cap device for bottles, comprising: a valve unit closely and removably fitted over a mouth of a bottle; and an additive containing part defining a cavity therein to contain an additive in the cavity, and externally and removably engaging with the valve unit.

In an embodiment, the valve unit comprises: a double-walled cylindrical valve body having double sidewalls, with an annular space defined between the sidewalls of the valve body to receive the mouth of the bottle therein; a conical valve part provided at a center of an opening formed a top wall of the double- walled cylindrical valve body; a plurality of radial ribs extending outward from an external surface of the conical valve part in radial directions; and a funnel part provided at a predetermined position in the additive containing part, such that a lower end of the funnel part is brought into close contact with or spaced apart from the conical valve part.

In another embodiment, the valve unit comprises: a cap body tightened at lower internal threads thereof to the mouth of the bottle through a screw-type engagement; a conical valve part formed at an intermediate portion in the cap body; and a funnel part provided at a lower portion of the additive containing part, with external threads formed at the lower portion of the additive containing part to engage with upper internal threads of the cap body, such that an open lower end of the funnel part comes into close contact with the conical valve part of the cap body.

Brief Description of the Drawings The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. 1 is an exploded and partially broken perspective view to show the construction of a cap device for bottles, according to a first embodiment of the present invention; FIG. 2a is a side sectional view to show the construction and operation of the cap device according to the first embodiment of the present invention, with the parts of the cap device assembled into a single body and the cap device tightened to the mouth of a bottle; FIG. 2b is a plan sectional view to show the construction and operation of the cap device according to the first embodiment of the present invention; FIG. 3 is an exploded and partially broken perspective view to show the construction of a cap device for bottles, according to a second embodiment of the present invention; FIG. 4 is a side sectional view to show the construction and operation of the cap device according to the second embodiment of the present invention, with the parts of the cap device assembled into a single body and the cap device tightened to the mouth of a bottle; FIG. 5 is an exploded and partially broken perspective view to show the

construction of a cap device for bottles, according to a third embodiment of the present invention; FIG. 6 is an exploded side sectional view showing the construction of the cap device according to the third embodiment of the present invention ; FIGS. 7a and 7b are side sectional views to show the construction and operation of the cap device for bottles, according to the third embodiment of the present invention; FIG. 8 is an exploded and partially broken perspective view to show the construction of a cap device for bottles, according to a fourth embodiment of the present invention; FIG. 9 is a side sectional view to show the construction of the cap device according to the fourth embodiment of the present invention, with the parts of the cap device assembled into a single body and the cap device tightened to the mouth of a bottle; FIG. 10 is an exploded and partially broken perspective view to show the construction of a cap device for bottles, according to a fifth embodiment of the present invention; FIG. 11 is a side sectional view to show the construction of the cap device according to the fifth embodiment of the present invention, with the parts of the cap device assembled into a single body and the cap device tightened to the mouth of a bottle; FIG. 12 is an exploded and partially broken perspective view to show the construction of a cap device for bottles, according to a sixth embodiment of the present invention; FIG. 13 is a side sectional view to show the construction of the cap device according to the sixth embodiment of the present invention, with the parts of the cap device assembled into a single body and the cap device tightened to the mouth of a bottle; FIG. 14 is an exploded perspective view to show the construction of a cap device for bottles, according to a seventh embodiment of the present invention;

FIG. 15 is a side sectional view to show the construction of the cap device according to the seventh embodiment of the present invention, with the parts of the cap device assembled into a single body and the cap device tightened to the mouth of a bottle; FIG. 16 is an exploded perspective view showing a bottle according to an eighth embodiment of the present invention, which is used with one of the cap devices of the present invention, with both a mixture-dispensing piece and a cup member provided at a spouted bottom of the bottle; FIG. 17 is a sectional view of the bottle according to the eighth embodiment of the present invention, when the mixture-dispensing piece and the cup member are mounted to the spouted bottom of the bottle; FIG. 18 is an exploded perspective view showing a bottle according to a ninth embodiment of the present invention, which is used with one of the cap devices of the present invention, with both a mixture spray unit and a cup member provided at a bottom of the bottle.

FIG. 19 is an exploded and partially broken perspective view to show the construction of a cap device for bottles, according to a tenth embodiment of the present invention; FIG. 20 is a perspective view to show the construction of the cap device according to the tenth embodiment of the present invention, with the parts of the cap device assembled into a single body; FIGS. 21 a and 21b are side sectional views to show the operation of the cap device according to the tenth embodiment of the present invention; FIG. 22a is a perspective view of a valve means of the cap device, according to an eleventh embodiment of the present invention ; FIG. 22b is a sectional view to show the construction and operation of the valve means according to the eleventh embodiment of the present invention, which is installed in a cap device tightened to a mouth of a bottle; FIGS. 23a and 23b are exploded perspective views to show the construction of a cap device for bottles, according to a twelfth embodiment of the present

invention; FIG. 24 is a perspective view of the cap device according to the twelfth embodiment of the present invention, when the assembled cap device is tightened to the mouth of a bottle; FIGS. 25a and 25b are sectional views showing the operation of the cap device according to the twelfth embodiment of the present invention; FIG. 26 is an exploded perspective view to show the construction of a cap device for bottles, according to a thirteenth embodiment of the present invention; FIG. 27 is an exploded sectional view to show the construction of the cap device according to the thirteenth embodiment of the present invention; FIG. 28 is a sectional view to show the construction of the cap device according to the thirteenth embodiment of the present invention, with the parts of the cap device assembled into a single body; FIG. 29 is a sectional view to show the operation of the cap device according to the thirteenth embodiment of the present invention, when the cap device is fully tightened to the mouth of a bottle; FIG. 30 is a sectional view to show the operation of the cap device according to the thirteenth embodiment of the present invention, when the cap device is loosened from the mouth of the bottle; FIG. 31 is a sectional view to show the construction of a cap device for bottles, according to a fourteenth embodiment of the present invention; FIG. 32 is a sectional view to show the construction of a cap device for bottles, according to a fifteenth embodiment of the present invention; FIG. 33 is a sectional view showing the construction of a cap device for bottles, according to a sixteenth embodiment of the present invention; FIG. 34 is a sectional view showing the construction of a bottle according to an eighteenth embodiment of the present invention, which is used with one of the cap devices of the present invention; FIG. 35a is an exploded perspective view showing the construction of a cap device for bottles, according to a nineteenth embodiment of the present invention;

FIG. 35b is a perspective view of the cap device according to the nineteenth embodiment of the present invention, when the assembled cap device is tightened to the mouth of a bottle; FIG. 36 is an exploded sectional view showing the construction of the cap device according to the nineteenth embodiment of the present invention ; FIGS. 37a and 37b are sectional views showing the operation of the cap device according to the nineteenth embodiment of the present invention; FIG. 38a is an exploded perspective view showing the construction of a cap device for bottles, according to a twentieth embodiment of the present invention; FIG. 38b is an exploded sectional view showing the construction of the cap device according to the twentieth embodiment of the present invention; FIGS. 39a and 39b are sectional views showing the operation of the cap device according to the twentieth embodiment of the present invention, when the assembled cap device is tightened to the mouth of a bottle; FIGS. 40a to 40c are perspective views showing the appearance and construction of the cap device according to the twentieth embodiment of the present invention; and FIGS. 41a and 41b are an exploded perspective view and a sectional view showing the construction and operation of a cap device for bottles, according to a twenty-first embodiment of the present invention, respectively.

Best Mode for Carrying Out the Invention Reference should now be made to the drawings, in which the same reference numerals are used throughout the different drawings to designate the same or similar components.

[First embodiment] FIGS. 1,2a and 2b are views of a cap device for bottles according to a first embodiment of the present invention. As shown in the drawings, the cap device according to the first embodiment of the present invention comprises a cap body 50

tightened to an externally threaded mouth of a bottle 13 containing a material therein, and an additive containing part 100 integrated with a lower surface of a top wall of the cap body 50 to define a cavity therein to contain an additive in the cavity. The additive containing part 100 has a cylindrical part 54, which is integrated with the lower surface of the top wall of the cap body 50. The cylindrical part 54 has a plurality of additive discharging holes 124a at a bottom wall thereof to allow the cavity to selectively communicate with the interior of the bottle 13. The cap device also has a valve means to allow the cavity defined by the additive containing part 100 and the cap body 50 to selectively communicate with the interior of the bottle 13. The valve means comprises a valve plate 122 to selectively open or close the additive discharging holes 124a of the cylindrical part 54, and a valve control unit to rotate the valve plate 122 to selectively open or close the additive discharging holes 124a of the cylindrical part 54 by use of the valve plate 122.

That is, the cylindrical part 54 is concentrically integrated'with the lower surface of the top wall of the cap body 50 while defining the cavity therein. The fan-shaped additive discharging holes 124a are formed at the bottom wall of the cylindrical part 54 while being spaced at regular angular intervals.

The valve plate 122 which is used to selectively open or close the additive discharging holes 124a of the cylindrical part 54, is rotatably and closely seated on the upper surface of the bottom wall of the cylindrical part 54. The valve plate 122 has a plurality of openings 124b which have the same shape as that of the fan- shaped additive discharging holes 124a of the cylindrical part 54, and may be aligned with the additive discharging holes 124a by a rotation of the valve plate 122 on the bottom wall of the cylindrical part 54.

The valve control unit rotates the valve plate 122 to align the openings 124b of the valve plate 122 with the additive discharging holes 124a of the cylindrical part 54, thus selectively opening the additive discharging holes 124a. The valve control unit is provided at the cylindrical part 54, the cap body 50, and the bottle 13.

In order to mix the additive with the bottled material to prepare a mixture before a user drinks or uses the mixture, the user rotates the cap body 50 of the cap device relative to the bottle 13 so as to move the cap body 50 upward. In such a case, the valve control unit rotates the valve plate 122 in response to the rotating action of the cap body 50, thus aligning the openings 124b of the valve plate 122 with the additive discharging holes 124a of the cylindrical part 54, and opening the holes 124a.

The additive is thus discharged from the cavity of the cap device into the bottle 13 through the open holes 124a, so that the additive is mixed with the material in the bottle 13 to prepare the desired mixture.

In the first embodiment of FIGS. 1,2a and 2b, the valve control unit comprises a projection"La"which is provided at a predetermined position on the upper surface of the valve plate 122, and an actuating mechanism 80 which is arranged in the cap device to come into contact with the projection"La"at a lower end thereof. The actuating mechanism 80 thus pushes the projection"La"in a circumferential direction to rotate the valve plate 122.

The actuating mechanism 80 comprises a vertical lever"Lb", first and second pinions"P", and a rack"R". The vertical lever"Lb"vertically stands in the cylindrical part 54 to always come into contact with the projection"La"at a lower end thereof. The first pinion is a first bevel gear which is integrated with the top end of the vertical lever"Lb"and is rotatably mounted to a sidewall of the cylindrical part 54. The second pinion is a second bevel gear, which is rotatably mounted to the top wall of the cap body 50 and engages with the first bevel gear.

The rack"R"engages with the second pinion"P", and movably passes a predetermined portion of the sidewall of the cylindrical part 54 to reach a position around the inner surface of the neck of the bottle 13 at an outside end thereof.

In order to actuate the outside end of the rack"R"in response to a rotating action of the cap device relative to the bottle 13, an actuating protrusion 34S is formed at a predetermined position of the inner surface of the neck of the bottle 13.

When it is desired to mix the additive with the bottled material to prepare

the mixture before the user drinks or uses the mixture, the user rotates the cap body 50 of the cap device relative to the mouth 12 of the bottle 13 such that the cap body 50 is moved upward. The rack"R"is thus actuated by the actuating protrusion 34S of the neck of the bottle 13, so that the rack"R"is linearly pushed to rotate the second pinion"P". The first pinion"P"engaging with the second pinion"P"is thus rotated to move the vertical lever"Lb". The projection"La"of the valve plate 122 is thus pushed in the circumferential direction by the vertical lever"Lb", so that the valve plate 122 is rotated to align the openings 124b thereof with the additive discharging holes 124a of the cylindrical part 54. The additive is thus discharged from the cavity of the cap device into the interior of the bottle 13.

[Second embodiment] In accordance with the second embodiment of the present invention, the valve control unit which actuates the valve plate 122 comprises a vertical shaft "Sd", a driven gear"G1", a drive gear"G2", and a partially toothed part"G3", as shown in FIGS. 3 and 4.

In the second embodiment, the vertical shaft"Sd", fixedly passing the center of the valve plate 122, is rotatably supported by top and bottom walls of the cylindrical part 54 at upper and lower ends thereof, respectively. The driven gear "G1"is mounted to the upper end of the vertical shaft"Sd", while the drive gear "G2"is rotatably set in the sidewall of the cylindrical part 54 at a predetermined position such that the drive gear"G2"engages with the driven gear"G1". The partially toothed part"G3"is provided on the inner surface of the neck of the bottle 13 to engage with the drive gear"G2".

When it is desired to mix the additive with the bottled material to prepare the mixture, the user rotates the cap body 50 of the cap device relative to the bottle 13 such that the cap body 50 is moved upward. In such a case, the drive gear "G2"engaging with the partially toothed part"G3"of the neck of the bottle 13 is rotated by the partially toothed part"G3", so that the driven gear"Gl", the vertical shaft"Sd"and the valve plate 122 are rotated by the rotating force of the drive gear "G2", thus aligning the openings 124b of the valve plate 122 with the additive

discharging holes 124a of the cylindrical part 54. The additive is thus discharged from the cavity of the cap device into the interior of the bottle 13.

[Third embodiment] In the third embodiment of the present invention, the cap device for bottles comprises a cap body 50, a first cam barrel 40, and a second cam barrel 42, as shown in FIGS. 5,6, 7a and 7b. The first cam barrel 40 has two cam slots"M" and a projection 123 on the sidewall thereof. The projection 123 projects outward from an upper part of the sidewall of the first cam barrel 40 in a radial direction, such that the projection 123 is stopped by a stop protrusion"N"provided at the inner surface of the neck of a bottle 13. The first cam barrel 40 is thus stopped in the mouth 12 of the bottle 13 without being rotated even when the cap device is rotated relative to the mouth 12 of the bottle 13. Therefore, the first cam barrel 40 may be called a"fixed cam barrel".

A plurality of additive discharging holes"H"are formed around a lower portion of the sidewall of the first cam barrel 40 to allow the interior of the second cam barrel 42 to communicate with the interior of the bottle 13. The first cam barrel 40 thus acts as a valve means to open a cavity defined in the interior of the second cam barrel 42. The lower end of the first cam barrel 40 is closed by a conical bottom.

The second cam barrel 42 has two cam protrusions"Ma"on the outer surface thereof at positions corresponding to the two cam slots"M"of the first cam barrel 40. The two cam protrusions"Ma"movably engage with the two cam slots "M"of the first cam barrel 40. The cavity defined in the second cam barrel 42 is divided into at least two chambers by a partition wall"W", thus separately containing at least two different additives in the divided chambers, as desired.

The second cam barrel 42 thus acts as an additive containing part in this third embodiment.

The upper end of the second cam barrel 42 is integrated with the lower surface of the top wall of the cap body 50, so that the second cam barrel 42 is rotated along with the cap body 50 relative to the mouth 12 of the bottle 13.

Therefore, the second cam barrel may be called a"rotatable cam barrel". The cap body 50 is tightened to the externally threaded mouth 12 of the bottle 13 containing a material therein.

When it is desired to mix the additives with the bottled material to prepare the mixture, the user rotates the cap body 50 of the cap device relative to the bottle 13 such that the cap body 50 is moved upward. In such a case, the second cam barrel 42 is moved upward along with the cap body 50 relative to the first cam barrel 40, so that the additive discharging holes"H"of the first cam barrel 40 are opened. The additives are thus quickly discharged from the divided chambers of the cavity of the second cam barrel 42 into the interior of the bottle 13. Therefore, it is possible to mix precise amounts of the additives with the bottled material to prepare the desired mixture just before the user drinks or uses the mixture (see FIGS. 7a and 7b).

In addition, a vent hole H'is formed in the top wall of the cap body 50 at a position corresponding to each of the chambers divided by the partition wall"W" in the first cam barrel 40, thereby allowing atmospheric air to be introduced into the chambers and release the vacuum pressure from the cavity when the cap body 50 is loosened relative to the mouth 12 of the bottle 13. It is thus possible to easily and smoothly discharge the additives from the cap device into the bottle 13.

[Fourth embodiment] As shown in FIGS. 8 and 9, the cap device for bottles according to the fourth embodiment of the present invention comprises a cap body 50, and a cap cover 100 assembled with the cap body 50 to define a cavity therein to contain an additive in the cavity. Therefore, the cap cover 100 acts as an additive containing part in this fourth embodiment. The cap device also has a valve means to allow the cavity defined by the cap body 50 and the cap cover 100 to selectively communicate with the interior of a bottle 13.

In a detailed description, the cap body 50 is tightened to the externally threaded mouth 12 of the bottle 13, with a funnel part 52 integrally formed in the cap body 50 to discharge the additive into the bottle 13 through a lower end

thereof.

The cap cover 100 is assembled with the cap body 50 to cover an open upper end of the cap body 50 while defining the cavity inside both the cap body 50 and the cap cover 100 to contain the additive in the cavity.

In the fourth embodiment, the valve means has a plurality of additive discharging holes"H", and is installed in the neck of the bottle 13 at a predetermined position while being assembled with the lower end of the funnel part 52 through a screw-type engagement to open or close the additive discharging holes"H"in accordance with a rotating action of the cap body 50 relative to the externally threaded mouth of the bottle 13.

That is, the valve means of the fourth embodiment comprises a gate unit 120K having both a cylindrical part 139 and a plurality of radial ribs 124, an elastic member"S", and a valve member"V". The cylindrical part 139 of the gate member 120K engages upward over the lower end of the funnel part 52 of the cap body 50 through the screw-type engagement, with the additive discharging holes "formed around a lower portion of a sidewall of the cylindrical part 139. The plurality of radial ribs 124 extend outward from the lower portion of an external surface of the sidewall of the cylindrical part 139 in radial directions such that outside ends of the radial ribs 124 are supported on the inner surface of the neck of the bottle 13.

The elastic member"S"is received in the cylindrical part 139 of the gate unit 120K to elastically support the funnel part 52 of the cap body 50. The valve member"V"is received in the cylindrical part 139 of the gate unit 120K at a position between the lower end of the funnel part 52 and the elastic member"S" such that the valve member"V"is elastically biased upward by the elastic member "S". The valve member"V"thus opens or closes the additive discharging holes "H"of the cylindrical part 139 of the gate unit 120K in accordance with a rotating action of the cap body 50 relative to the externally threaded mouth of the bottle 13.

The cap body 50 which is tightened to the externally threaded mouth of the bottle 13, and the cylindrical part 139 of the gate member 120K which engages

over the lower end of the funnel part 52 of the cap body 50 through the screw-type engagement, have the same pitch of threads. The cap body 50 is thus smoothly moved upward or downward in accordance with a rotating action thereof relative to the externally threaded mouth of the bottle 13.

[Fifth embodiment] FIGS. 10 and 11 are views of a cap device for bottles according to a fifth embodiment of the present invention. As shown in the drawings, the general shape of the cap device according to the fifth embodiment remains the same as that described for the fourth embodiment, but the valve means is altered as follows.

That is, the valve means according to the fifth embodiment comprises a valve member"V"having a valve part to be brought into close contact with or spaced apart from the lower end of the funnel part 52 of the cap body 50, which acts as a valve seat. The valve part of the valve member"V"thus closes or opens the lower end of the funnel part 52 in accordance with the rotating action of the cap body 50 relative to the externally threaded mouth of the bottle 13, with a plurality of radial ribs 124 extending outward from an external surface of the valve part in radial directions such that outside ends of the radial ribs 124 are supported on the inner surface of the neck of the bottle 13.

[Sixth embodiment] FIGS. 12 and 13 are views of a cap device for bottles according to a sixth embodiment of the present invention. As shown in the drawings, the general shape of the cap device according to the sixth embodiment remains the same as that described for the fourth embodiment, but the valve means is altered as follows.

That is, the valve means according to the sixth embodiment comprises an arc- shaped projection 30 externally formed on a sidewall of the lower end of the funnel part 52 of the cap body 50 at a predetermined portion such that the arc-shaped projection 30 has a predetermined length and a radius of curvature larger than a radius of rotation of the cap body 50.

In the sixth embodiment, the lower end of the funnel part 52 is closed, while the arc-shaped projection 30 is open. A breakable sheet 32 is provided at

the arc-shaped projection 30 to close the open projection 30.

A cutting blade 34 is projected from the inner surface of the neck of the bottle 13 at a position corresponding to the breakable sheet 32 to break the breakable sheet 32 in accordance with the rotating action of the cap body 50 relative to the externally threaded mouth of the bottle 13.

When the cap body 50 of the cap device having the above-described construction is rotated to move upward relative to the externally threaded mouth of the bottle 13, the valve means opens the lower end of the funnel part 52 of the cap body 50. Therefore, the cavity defined by the cap body 50 and the cap cover 100 of the cap device communicates with the interior of the bottle 13. The additive is thus discharged from the cavity defined by the cap body 50 and the cap cover 100 into the bottle 13 to be mixed with a material contained in the bottle 13 to produce a mixture.

The arc-shaped projection 30 has an angle of inclination corresponding to a pitch of the internal threads of the cap body 50 which is tightened to the externally threaded mouth of the bottle 13. Therefore, when the cap body 50 of the cap device is rotated to move upward relative to the externally threaded mouth of the bottle 13, the cutting blade 34 provided at the inner surface of the neck of the bottle 13 reliably breaks the breakable sheet 32 of the cap body 50 and opens the lower end of the funnel part 52 of the cap body 50. The cavity of the cap device thus communicates with the interior of the bottle 13 through the open lower end of the funnel part 52, so that the additive smoothly flows from the cavity into the bottle 13.

In each of the cap devices according to the fourth to sixth embodiments, a small vent hole provided with a valve cock"C"to open or close the vent hole is formed at the top wall of the cap cover 100 so as to allow the additive to smoothly flow from the cavity into the bottle 13 in response to the communication of the cavity with the interior of the bottle 13. When the valve cock"C"opens the vent hole, atmospheric air is introduced into the cavity of the cap device through the vent hole, thereby preventing any vacuum pressure from acting on the surface of

the additive in the cavity. The additive thus smoothly flows from the cavity of the cap device into the bottle 13, so that the additive is easily added to the material in the bottle 13 to produce a desired mixture.

[Seventh embodiment] FIGS. 14 and 15 are views of a cap device for bottles according to a seventh embodiment of the present invention. As shown in the drawings, the general shape of the cap device according to the seventh embodiment remains the same as that described for the fourth embodiment, but the valve means is altered as follows.

That is, the valve means according to the seventh embodiment comprises a breakable sheet 32K provided at the lower end of the funnel part 52 of the cap body 50 to close the lower end of the funnel part 52. The breakable sheet 32K has a structure to be easily broken to open the lower end of the funnel part 52 when the sheet 32K is urged in a circumferential direction.

A breaking ring"R"is provided at a predetermined position on an outside area of a lower surface of the breakable sheet 32K. The breaking ring"R"has a structure to urge the breakable sheet 32K in the circumferential direction. A protrusion 55 is provided on the breakable sheet 32K at a position around the ring "R"to support the ring"R". The ring"R"is thus always kept upright even when it is pushed horizontally to break the breakable sheet 32K.

In the cap device according to the seventh embodiment, a pushing rod 34K is projected from the inner surface of the neck of the bottle 13 at a position corresponding to the breaking ring"R"when the breaking ring"R"is rotated to move upward along with the cap body 50, thus coming into contact with the breaking ring"R"to push the ring"R"in the circumferential direction. The pushing rod 34K is formed through a double injection molding process.

In addition, the breakable sheet 32K provided at the lower end of the funnel part 52 which has a breaking line comprising a sine-curved line part and an edge line part, and along which the sheet 32K is broken to form a large opening at the lower end of the funnel part 52 when the breakable sheet 32K is urged to be broken.

When the cap body 50 of the cap device having the. above-described construction is rotated to move upward relative to the externally threaded mouth of the bottle 13, the breaking ring"R"of the valve means is stopped and pushed by the pushing rod 34K, so that the breakable sheet 32K is broken to open the lower end of the funnel part 52.

Therefore, the cavity defined by the cap body 50 and the cap cover 100 of the cap device communicates with the interior of the bottle 13. The additive is thus discharged from the cavity defined by the cap body 50 and the cap cover 100 into the bottle 13 to be mixed with a material contained in the bottle 13 to produce a mixture.

[Eighth embodiment] FIGS. 16 and 17 are views of a bottle according to the eighth embodiment of the present invention, which is used with the cap devices of the present invention. As shown in the drawings, a spout 91 having external threads"Sa" may be formed at a bottom of the bottle 13. In such a case, a mixture dispensing means removably engages with the external threads"Sa"of the spout 91. A cup member 51 is removably fitted over a lower portion of a sidewall of the bottle 13 to cover the mixture dispensing means.

In the embodiment of FIGS. 16 and 17, the mixture dispensing means comprises a mixture-dispensing piece 59 having internal threads"Sb"to engage with the external threads"Sa"of the spout 91. In the present invention, the mixture-dispensing piece 59 may be selected from rubber nipples for nursing, and ink dispensers.

[Ninth embodiment] In the ninth embodiment of FIG. 18, the mixture dispensing means comprises a mixture spray unit 61 having internal threads"Sc"to engage with the external threads"Sa"of the spout 91 of the bottle 13.

In the fourth to ninth embodiments of the present invention, the cap body 50 and the cap cover 100 of the cap device is preferably assembled into a single body by use of a threaded structure and a toothed structure 103a and 103b, as

shown in FIGS. 14 and 15.

That is, after the cap cover 100 is completely assembled with the cap body 50 into the single body by use of the threaded structure and the toothed structure, the cap cover 100 is not likely to easily rotate relative to the cap body 50. The cap cover 100 is thus prevented from being undesirably removed from the cap body 50.

[Tenth embodiment] FIGS. 19,20, 21a, and 21b are views of a cap device for bottles according to the tenth embodiment of the present invention. As shown in the drawings, the cap device according to the tenth embodiment of the present invention comprises a cap body 50, and a cap cover 100 assembled with the cap body 50 to define a cavity therein to contain an additive in the cavity. The cap cover 100 thus acts as an additive containing part in this tenth embodiment. The cap device also has a valve means to allow the cavity defined by the cap body 50 and the cap cover 100 to selectively communicate with the interior of a bottle 13.

In a detailed description, the cap body 50 is tightened to an externally threaded mouth 12 of the bottle 13, with a funnel part 52 integrally formed in the cap body 50 to discharge the additive into the bottle 13 through a lower end thereof.

The cap cover 100 is assembled with the cap body 50 to cover an open upper end of the cap body 50 while defining the cavity inside both the cap body 50 and the cap cover 100 to contain the additive in the cavity.

In the tenth embodiment, the valve means comprises a valve member"V" having a conical valve part 14 to be brought into close contact with or spaced apart from the lower end of the funnel part 52 of the cap body 50, which acts as a valve seat. The conical valve part 14 of the valve member"V"thus closes or opens the lower end of the funnel part 52 in accordance with the rotating action of the cap body 50 relative to the externally threaded mouth 12 of the bottle 13. A plurality of radial ribs 124 extend outward from an external surface of the conical valve part 14 in radial directions such that outside ends of the radial ribs 124 are supported on the inner surface of a neck of the bottle 13. In order to allow the outside ends of

the radial ribs 124 to be stably supported on the inner surface of the neck of the bottle 13, a circular ring 24 having a predetermined thickness integrally surrounds the outside ends of the radial ribs 124.

When the cap body 50 of the cap device having the above-described construction is rotated to move upward relative to the externally threaded mouth 12 of the bottle 13, the valve means opens the lower end of the funnel part 52 of the cap body 50. Therefore, the cavity defined by the cap body 50 and the cap cover 100 of the cap device communicates with the interior of the bottle 13, as shown in FIGS. 21a and 21b. The additive is thus discharged from the cavity defined by the cap body 50 and the cap cover 100 into the bottle 13 to be mixed with a material contained in the bottle 13 to produce a mixture.

In the cap device according to the tenth embodiment, a vacuum pressure may act on the surface of the additive contained in the cavity of the cap device, when the cap cover 100 is completely closed. In such a case, the additive cannot smoothly flow from the cavity of the cap device into the bottle 13, even when the cavity communicates with the interior of the bottle 13 by an operation of the valve means. In order to allow the additive to smoothly flow from the cavity into the bottle 13 in response to the communication of the cavity with the interior of the bottle 13, a small vent hole provided with a valve cock"C"to open or close the vent hole is formed at a top surface of the cap cover 100. When the valve cock "C"opens the vent hole, atmospheric air is introduced into the cavity of the cap device through the vent hole, thereby preventing any vacuum pressure from acting on the surface of the additive in the cavity. The additive thus smoothly flows from the cavity of the cap device into the bottle 13, so that the additive is easily added to the material in the bottle 13 to produce a desired mixture.

[Eleventh embodiment] FIGS. 22a and 22b are views of a valve means of the cap device, according to the eleventh embodiment of the present invention. As shown in the drawings, a sealing means is provided at a junction between the valve member"V"and the lower end of the funnel part 52 of the cap body, thus accomplishing an airtight or

watertight sealing effect at the junction.

The sealing means is provided at the conical valve part 14 of the valve member"V". That is, the sealing means comprises a plugging shank 14S of a conical valve body extending upward from a valve holder 14T of the valve part 14.

External threads are formed around the plugging shank 14S, such that the external threads of the plugging shank 14S have the same pitch as internal threads of the lower end of the funnel part 52 of the cap body. In order to engage with the external threads of the plugging shank 14S, the lower end of the funnel part 52 is provided with an engaging part 52S on an internal surface thereof. Due to the sealing means, the desired sealing effect at the junction between the valve member "V"and the funnel part 52 is accomplished.

When the cap body of the cap device is rotated to move upward relative to the externally threaded mouth 12 of the bottle 13, the lower end of the funnel part 52 is rotated to move in the same direction relative to the plugging shank 14S. In such a case, the internal threads of the funnel part 52 move upward along the external threads of the plugging shank 14S to open the lower end of the funnel part 52. Due to the screw-type engagement of the valve member"V"with the lower end of the funnel part 52, it is possible to accomplish the airtight or watertight sealing effect at the junction between the valve member"V"and the lower end of the funnel part 52.

[Twelfth embodiment] FIGS. 23a, 23b, 24,25a, and 25b are views of a cap device for bottles according to the twelfth embodiment of the present invention. As shown in the drawings, the cap device according to the twelfth embodiment of the present invention comprises a cap body 100F defining a cavity therein to contain an additive in the cavity. Therefore, the cap body 100F acts as an additive containing part in this twelfth embodiment. A funnel part 52 is integrally formed in the cap body 100F to discharge the additive into a bottle 13 through a lower end thereof.

A breakable sheet 32 is provided to the lower end of the funnel part 52 to close the lower end of the funnel part 52. A small vent hole"H"provided with a valve

cock"C"to open or close the vent hole"H"is formed at a top surface of the cap body 100F. The bottle 13 has a projection 10 at a predetermined position on a top edge of a mouth thereof. The cap device also has a valve means to allow the cavity of the cap body 100F to selectively communicate with an interior of the bottle 13.

In a detailed description, the cap body 100F is tightened to the externally threaded mouth of the bottle 13, with the funnel part 52 integrally formed in the cap body 100F to discharge the additive into the bottle 13 through the lower end thereof.

The funnel part 52 is shaped to define the cavity in cooperation with the cap body 100F and to smoothly guide the additive downward. The breakable sheet 32 is provided to the lower end of the funnel part 52 to close the lower end of the funnel part 52.

The vent hole"H"having the valve cock"C"to open or close the vent hole "H"is formed at the top surface of the cap body 100F at a predetermined portion.

The valve cock"C"is pushed upward by the projection 10 formed at the top edge of the bottle mouth, thus opening the vent hole"H".

The valve means, having a structure capable of allowing a liquid to pass through it, is stably placed in a neck of the bottle 13. The valve means has a conical valve part to thrust the breakable sheet 32 upward to break the sheet 32 when the cap body 100F is moved downward relative to the mouth of the bottle 13.

That is, the valve means comprises a valve member"V"having a conical valve part 14 which thrusts the breakable sheet 32 upward to break the sheet 32 when the cap body 100F is moved downward relative to the mouth of the bottle 13.

A plurality of radial ribs 124 extend outward from an external surface of the conical valve part 14 in radial directions. A ring 24 is integrated with outside ends of the radial ribs 124 so as to allow the valve member"V"to be stably placed in the neck of the bottle at a predetermined position.

When the cap body 100F of the cap device having the above-described construction is rotated to move downward relative to the externally threaded mouth

of the bottle 13, the conical valve part 14 of the valve member"V"thrusts the breakable sheet 32 upward to break the sheet 32, as shown in FIG. 25b. In such a case, the valve cock"C"is pushed upward by the projection 10 of the bottle mouth, thus opening the vent hole"H"formed at the top surface of the cap body 100F, as shown in FIG. 25b.

Thereafter, the cap body 100F is rotated to move upward relative to the bottle mouth, so that the lower end of the funnel part 52 having the broken sheet 32 is spaced apart from the valve member"V", as shown in FIG. 25a. The cavity of the cap device thus communicates with the interior of the bottle 13. The additive is discharged from the cavity of the cap body 100F through the open lower end of the funnel part 52, and passes through the spaces between the radial ribs 124 of the valve member"V", thus being added to the material contained in the bottle 13.

Since the vent hole"H"is opened by the valve cock"C"as described above, the vacuum pressure is smoothly and naturally removed from the cavity of the cap body 100F containing the additive therein, without requiring any additional action. Therefore, the additive smoothly flows from the cavity into the bottle 13 through the open lower end of the funnel part 52 of the cap body 100F.

[Thirteenth embodiment] FIGS. 26,27, 28, 29, and 30 are views showing the construction of a cap device for bottles, according to the thirteenth embodiment of the present invention.

As shown in the drawings, the cap device according to the thirteenth embodiment of the present invention comprises a cap body 50, and a cap cover 100 assembled with the cap body 50 to define a cavity therein to contain an additive in the cavity.

The cap cover 100 thus acts as an additive containing part in this thirteenth embodiment. The cap device also has a valve means to allow the cavity defined by the cap body 50 and the cap cover 100 to selectively communicate with the interior of a bottle 13. In the embodiment, the valve means comprises a valve member 120K seated in the neck of a bottle 13.

In the thirteenth embodiment, the neck of the bottle 13 is designed to be tapered downward on its inner surface 16a.

The valve member 120K is provided at the center thereof with a valve part 159 which acts as a valve seat. The valve part 159 of the valve member 120K thus closes or opens the lower end of a funnel part 54 of the cap body 50 in accordance with a rotating action of the cap body 50 relative to the mouth of the bottle 13. A plurality of radial ribs 124 extend outward from an external surface of the valve part 159 in radial directions, and the outside ends of the radial ribs 124 are integrated with a circular ring, so that a plurality of additive discharging holes are formed at the valve member 120K.

The valve member 120K also has a wedge-tipped shank 126 which vertically extends upward from the center of the valve part 159, with a wedge- shaped tip provided at the top end of the vertical shank 126. The circular ring of the valve part 120K is tapered at the outer surface thereof to form a tapered surface 16b which corresponds to the tapered inner surface 16a of the neck of the bottle 13.

The cap body 50 has internal threads to engage with the externally threaded mouth of the bottle 13. The funnel part 54 is integrally formed in the cap body 50 to discharge the additive into the bottle 13 through a lower end 52 thereof. The lower end 52 of the funnel part 54 acts as a valve seat for the valve member 120K.

A vent hole 18 is formed at a predetermined position of the upper end of the funnel part 54.

The cap cover 100 is assembled at the lower end thereof with the upper end of the cap body 50 to cover the open upper end of the cap body 50 while defining the cavity inside both the cap body 50 and the cap cover 100 to contain the additive in the cavity.

When the internally threaded cap body 50 assembled with the cap cover 100 of the cap device is tightened to the externally threaded mouth of the bottle 13, the wedge-tipped shank 126 of the valve member 120K previously set in the neck of the bottle 13 is inserted into the lower end 52 of the funnel part 50, thus being positioned in the funnel part 54, as shown in FIGS. 28. When the cap body 50 is fully tightened to the mouth of the bottle 13, the lower end 52 of the funnel part 54 comes into close contact with the valve part 159 of the valve member 120K, as

shown in FIG. 29. The lower end 52 of the funnel part 54 is thus completely closed. In such a case, the vent hole 18 of the cap device is also closed by the top edge of the mouth of the bottle 13.

When the cap body 50 is rotated to move upward relative to the externally threaded mouth of the bottle 13, as shown in FIG. 30, the lower end 52 of the funnel part 54 is separated from the valve part 159 of the valve member 120K, thus causing the cavity of the cap device containing the additive to communicate with the interior of the bottle 13 containing the material.

Therefore, the additive flows from the cavity of the cap device into the interior of the bottle 13 through the open lower end 52 of the funnel part 52 and the additive discharging holes formed between the radial robs 124 of the valve member 120K. In such a case, the vent hole 18 of the cap device is opened, so that the vacuum pressure acting on the surface of the additive contained in the cavity of the cap device is released because air is introduced into the cavity through the open vent hole 18. The additive thus smoothly flows from the cavity of the cap device into the bottle 13, so that the additive is easily added to the material in the bottle 13 to produce a desired mixture.

After the additive is mixed with the bottled material to produce the desired mixture in the bottle 13, the user completely removes the cap device having the cap body 50 and the cap cover 100 from the mouth of the bottle 13 to drink or use the mixture. When the cap device is removed from the mouth of the bottle 13 as described above, the valve member 120K is removed from the bottle 13 along with the cap device because the valve member 120K is assembled with the cap device through the wedge-tipped shank 126.

When the valve member 120K is seated in or removed from the neck of the bottle 13, it is easy to seat or remove the valve member 120K relative to the neck of the bottle 13 because the circular ring of the valve part 120K has the tapered outer surface 16b which corresponds to the tapered inner surface 16a of the neck of the bottle 13.

[Fourteenth embodiment]

FIG. 31 is a sectional view showing the construction of a cap device for bottles, according to the fourteenth embodiment of the present invention. As shown in the drawing, the general shape of the cap device according to the fourteenth embodiment of the present invention remains the same as that described for the thirteenth embodiment, but a protective cover"Cl"is added to the cap device of the fourteenth embodiment. In the fourteenth embodiment, the protective cover"C1"is preferably colored as, for example, translucent brown, such that the protective cover"C1"partially intercepts light, such as sunlight, transmitted into the cavity of the cap device.

That is, the cap device according to the fourteenth embodiment of the present invention has the protective cover"C1", which holds the cap cover 100 by means of an upper locking means and is removably fitted over the upper part of the bottle 13 by means of a lower locking means.

The upper locking means comprises a first locking flange 100a formed along the outer edge of the top wall of the cap cover 100 acting as an additive containing part, and a first locking groove"Ch"formed around the corner of a depression provided at a lower surface of a top wall of the protective cover"C1".

The first locking flange 100a of the cap cover 100 removably engages with the first locking groove of the protective cover"C1", so that the protective cover"C1" holds the cap cover.

The lower locking means comprises a second locking flange"Ca"formed around an inner surface of the lower edge of the protective cover"Cl", and a second locking groove 100b formed around the upper part of the bottle 13. The second locking flange"Ca"of the protective cover"C1"is removably fitted over the second locking groove 100b of the bottle 13.

Since the cap device according to the fourteenth embodiment of the present invention has the translucent blow protective cover"C1"which partially intercepts light, such as sunlight, transmitted into the cavity of the cap device, it is possible to preserve the additive in the cavity of the cap device for a lengthy period of time, without allowing a chemical or physical change in the additive.

When the cap device has the translucent brown protective cover"Cl"with the above-described light intercepting effects, it is possible to produce the cap cover 100 of the cap device by use of transparent materials. The protective cover "C1"also protects the cap cover 100 from external impact, thus preventing unexpected loss of the additive.

In addition, since the protective cover"Cl"has a large diameter, the user can easily rotate the cap device with small force, relative to the mouth of the bottle 13.

[Fifteenth embodiment] FIG. 32 is a sectional view showing the construction of a cap device for bottles, according to the fifteenth embodiment of the present invention. As shown in the drawing, the general shape of the cap device according to the fifteenth embodiment of the present invention remains the same as that described for the fourteenth embodiment, but the cap device according to the fifteenth embodiment does not have the upper locking means, different from the fourteenth embodiment.

In addition, a step 94, in place of the tapered inner surface 16a, is formed around the inner surface of the neck of a bottle 13 to stably and removably seat a valve member 120K in the neck of the bottle 13. That is, the cap device of this fifteenth embodiment has the valve member 120K seated in the neck of the bottle 13, and a cap body 50 assembled with a cap cover 100 to define a cavity to contain an additive therein. The cap cover 100 thus acts as an additive containing part in this fifteenth embodiment. The cavity is selectively opened or closed by the valve member 120K. The cap device also has a protective cover"Cl"to protect the cap device. The cap device further comprises the step 94, which is formed around the inner surface of the neck of the bottle 13, so that the valve member 120K is stably seated in the neck of the bottle 13.

Due to the step 94 of the bottle 13, it is easy to seat and remove the valve member 120K relative to the neck of the bottle 13, in a similar manner to that described for the thirteenth and fourteenth embodiments. The detailed description of the operational effect of the cap device according to the fifteenth embodiment of

the present invention is thus not deemed necessary.

[Sixteenth embodiment] FIG. 33 is a sectional view showing the construction of a cap device for bottles, according to the sixteenth embodiment of the present invention. As shown in the drawing, the general shape of the cap device according to the sixteenth embodiment remains the same as that described for the fifteenth embodiment, but the cap device according to the sixteenth embodiment has the upper locking means, different from the fifteenth embodiment. In addition, the depression, which is provided at the lower surface of the top wall of the protective cover"C1"and has the first locking groove to hold the first locking flange 100a of the cap cover 100 acting as an additive containing part, is deeper than that of the fifteenth embodiment, so that a space is left in the depression when the cap cover 100 is held by the first locking groove of the depression.

[Seventeenth embodiment] In accordance with a further embodiment of the present invention, a vent tube 18a may be connected to the vent hole 18 of the cap body 50. That is, the cap device according to the seventeenth embodiment of the present invention comprises a valve member 120K seated in the neck of a bottle 13, and a cap body 50 assembled with a cap cover 100 to define a cavity to contain an additive therein.

The cavity is selectively open by the valve member 120K. The cap device also has a protective cover"C1"to protect the cap device. The cap device further comprises a vent tube 18a, which has a predetermined length and is installed in the vent hole 18 of the cap body 50, as shown in FIGS. 26 through 33.

Due to the vent tube 18a, it is possible to prevent a leakage of the additive from the cavity of the cap device through the vent hole 18, while allowing an introduction of air into the cavity through the vent hole 18. Therefore, the additive smoothly flows from the cavity of the cap device into the bottle 13, in response to a rotating action of the cap body 50 relative to the mouth of the bottle 13.

[Eighteenth embodiment]

FIG. 34 is a sectional view showing the construction of a bottle according to the eighteenth embodiment of the present invention, which is used with one of the cap devices of the present invention. As shown in the drawing, the bottle 13 according to the eighteenth embodiment of the present invention has first and second container parts 60 and 68 at the bottom thereof to respectively contain first and second chemicals 62 and 66 in the two container parts 60 and 68. A breakable sheet 64 is provided at the open lower end of the first container part 60 to close the lower end of the container part 60. In order to break the. breakable sheet 64 to open the lower end of the first container part 60 when necessary, a breaking edge 70 is provided at the inner surface of the second container part 68. A cylindrical skirt 72 integrally extends downward from the sidewall of the first container part 60 so as to surround and protect the first and second container parts 60 and 68, and allows the bottle 13 to stably stand upright on a support surface when the bottle 13 is stored on the support surface.

That is, the first container part 60 having a funnel shape is integrally provided at the bottom of the bottle 13. The first container part 60 is open at the lower end thereof to form an opening covered with the breakable sheet 64, and is externally threaded at its lower end. The first chemical 62, which absorbs heat from the surroundings to cool the surroundings when it is mixed with the second chemical 66 to produce a cooling mixture, is contained in the first container part 60.

The breakable sheet 64 is provided at the open lower end of the first container part 60 to close the open lower end of the container part 60. The second container part 68 is a cup-shaped body having internal threads, and externally engages with the externally threaded lower end of the first container part 60. The second chemical 66, which absorbs heat from surroundings to cool the surroundings when it is mixed with the first chemical 62 to produce the cooling mixture, is contained in the second container part 68.

In order to break the breakable sheet 64 to open the lower end of the first container part 60 when the second container part 68 is rotated to move upward

along the externally threaded lower end of the first container part 60, the breaking edge 70 is provided at the inner surface of the second container part 68. The cylindrical skirt 72, which integrally extends downward from the sidewall of the first container part 60, surrounds and protects the first and second container parts 60 and 68, and allows the bottle 13 to stably stand upright on the support surface.

In the eighteenth embodiment, a part of the bottom of the bottle 13 is protruded downward into the first container part 60, thus enlarging the heat exchanging surface area at which heat transfers between a bottled material and the cooling mixture produced by the mixing of the first and second chemicals. In the present invention, the first chemical 62 is preferably contained in the first container part 60 at a vacuum pressure, so that the second chemical 66 more effectively and quickly flows into the first chemical 62 when the lower end of the first container part 60 is opened.

[Nineteenth embodiment] FIGS. 35a, 35b, 36,37a, and 37b are views showing a cap device for bottles, according to the nineteenth embodiment of the present invention. As shown in the drawings, the cap device according to the nineteenth embodiment of the present invention comprises a cap cover 100 acting as an additive containing part. The cap cover 100 has a first funnel part 52, and a breakable sheet 32 provided at an open lower end of the first funnel part 52 to close the open lower end of the first funnel part 52. The cap device also has a cap body 50 assembled with the cap cover 100. The cap body 50 has a second funnel part 54, and a breaking means 22F, which acts as a valve means to break the breakable sheet 32 and thereby to open the lower end of the first funnel part 52.

That is, the cap cover 100 has the first funnel part 52 at a lower section thereof, and forms a cavity therein to contain additives. The cavity defined in the cap cover 100 is divided into two chambers by a partition wall"W", thus separately containing two different additives in the divided chambers, as desired.

The breakable sheet 32, having a structure to be easily broken by external impact, is provided at the open lower end of the first funnel part 52 of the cap cover

100 to close the open lower end of the first funnel part 52. The second funnel part 54, which has the same shape as the first funnel part 52, is provided at an upper section of the cap body 50, such that the first and second funnel parts 52 and 54 may be spaced apart from each other or come into contact with each other in response to a tightened degree of the cap cover 100 relative to the cap body 50.

The cap body 50 is assembled at an externally threaded upper end thereof with an internally threaded lower end of the cap cover 100 through a screw-type engagement. The cap body 50 also has internal threads at a lower portion thereof, and is externally tightened to the externally threaded mouth of a bottle 13.

The breaking means 22F acting as the valve means is provided in the cap body 50 at a position under the second funnel part 54, such that the breaking means 22F projects upward from a support part 56 to a predetermined height through a central opening of the second funnel part 54. The breaking means 22F comprises two breaking wedges 14a and 14b, which project upward from the support part 56 to the predetermined height through the central opening of the second funnel part 54 and have sharp tips. The support part 56 is integrally formed in the upper section of the cap body 50 at a position under the second funnel part 54.

When the cap cover 100 is rotated to move downward relative to the cap body 50, as shown in FIGS. 37a and 37b, the breaking wedges 14a and 14b are inserted into the breakable sheet 32 provided at the lower end of the first funnel part 52, thus breaking the breakable sheet 32 and opening the lower end of the first funnel part 52. The two additives are thus discharged from the two separate chambers of the cap cover 100 into the bottle 13 under the guide of the first funnel part 52, so that the additives are mixed with the bottled material to prepare a desired mixture in the bottle 13.

A removable stop band 58 is preferably placed around the junction of the cap body 50 and the cap cover 100 so as to stop the cap cover 100, thus preventing the cap cover 100 from being undesirably rotated to move downward relative to the cap body 50, before the user consciously rotates the cap cover 100 to mix the additives with the bottled material.

The stop band 58 is preferably provided with a weak portion at a predetermined position thereof, so that the user easily breaks the stop band 58, when necessary.

The stop band 58 thus acts as a stop means for holding the cap cover 100 without allowing the cap cover 100 to move, before the user twists the cap device to mix the additive with the bottled material.

In the cap device according to the nineteenth embodiment, a vacuum pressure may act on the surfaces of the additives contained in the separate chambers of the cap cover 100, when the cap cover 100 is completely closed. In such a case, the additives cannot smoothly flow from the chambers of the cap cover 100 into the bottle 13, even when the chambers communicate with the interior of the bottle 13 by an operation of the breaking means 22F. In order to allow the additives to smoothly flow from the chambers into the bottle 13 in response to the communication of the chambers with the interior of the bottle 13, a small vent hole provided with a valve cock"C"to open or close the vent hole is formed at the top surface of the cap cover 100 at a position corresponding to each of the chambers.

When the valve cocks"C"open the vent holes, atmospheric air is introduced into the chambers of the cavity through the open vent holes, thereby removing the vacuum pressure from the surfaces of the additives in the chambers. The additives thus smoothly flow from the chambers into the bottle 13, so that the additives are easily added to the material in the bottle 13 to produce a desired mixture.

[Twentieth embodiment] FIGS. 38a, 38b, 39a, 39b, 40a, 40b, and 40c are views showing a cap device for bottles, according to the twentieth embodiment of the present invention. As shown in the drawings, the cap device according to the twentieth embodiment comprises a cap body 100 having internal threads and defining a cavity therein to act as an additive containing part, and a valve unit 120K acting as a valve means to open or close the cavity of the cap body 100. The cap device of this twentieth embodiment is used with a bottle 13, of which the mouth does not have internal or

external threads. That is, a double-walled cylindrical valve body 120 of the valve unit 120K is closely fitted over the non-threaded mouth of the bottle 13. Of course, it is possible to remove the valve body 120 from the mouth of the bottle, when necessary. The cap body 100 defines the cavity therein to contain an additive, and externally and removaly engages at its internal threads to external threads of the valve body 120.

The valve unit 120K comprises the double-walled cylindrical valve body 120, with both a conical valve part 14 and a plurality of radial ribs 124 provided in the valve body 120. The valve unit 120K also comprises a funnel part 52 provided in the cap body 100.

That is, the double-walled cylindrical valve body 120 has double sidewalls, with an annular space"S"defined between the sidewalls of the valve body 120 to receive the non-threaded mouth of the bottle 13 therein. The conical valve part 14 is provided at the center of an opening formed the top wall of the valve body 120, and the radial ribs 124 extend outward from the external surface of the conical valve part 14 in radial directions.

The conical valve part 14 of the valve body 120 is thus brought into close contact with or spaced apart from the lower end 52K of the funnel part 52 of the cap body 100, in accordance with a tightened degree of the cap body 100 relative to the valve body 120, as shown in FIGS. 39a and 39b. The lower end 52K of the funnel part 52 thus acts as a valve seat. Therefore, it is possible to discharge the additive from the cavity of the cap body 100 into the bottle 13 through a plurality of additive discharging spaces formed between the radial ribs 124. The cap device of the twentieth embodiment thus allows the user to quickly mix a precise amount of the additive with the bottled material to prepare a desired mixture in the bottle 13.

In the cap device according to the twentieth embodiment, a vacuum pressure may act on the surface of the additive contained in the cavity of the cap body 100. In such a case, the additive cannot smoothly flow from the cavity of the cap body 100 into the bottle 13, even when the cavity communicates with the

interior of the bottle 13 by an operation of the valve unit 120K. In order to allow the additive to smoothly flow from the cavity into the bottle 13 in response to the communication of the cavity with the interior of the bottle 13, a small vent hole provided with a valve cock"C"to open or close the vent hole is formed at the top surface of the cap body 100. When the valve cock"C"opens the vent hole, atmospheric air is introduced into the cavity through the open vent hole, thereby removing the vacuum pressure from the surface of the additive in the cavity. The additive thus smoothly flows from the cavity into the bottle 13, so that the additive is easily added to the material in the bottle 13 to produce the desired mixture.

After the additive is completely mixed with the bottled material, the cap body 100 and the valve body 120 are removed from the mouth of the bottle 13, thus completely opening the mouth of the bottle 13.

The cap device according to the twentieth embodiment is preferably used with bottles or containers, such as test tubes, which do not have threads at their mouths. In addition, since the conical valve part 14 of the valve body 120 is controlled to be brought into close contact with or spaced apart from the lower end 52K of the funnel part 52, the additive smoothly flows from the cavity of the cap body 100 into the bottle 13 through the additive discharging spaces formed between the radial ribs 124. The user thus quickly mixes the precise amount of the additive with the bottled material to prepare the desired mixture in the bottle 13.

[Twenty-first embodiment] FIGS. 41a and 41b are views showing a cap device for bottles, according to the twenty-first embodiment of the present invention. As shown in the drawings, the cap device according to the twenty-first embodiment comprises an additive containing part 100M, which has external threads at a lower portion thereof and defines a cavity therein to contain an additive. The cap device also has a valve unit 120K acting as a valve means to open or close the cavity of the additive containing part 100M. The cap device of this embodiment is used with a bottle 13 having an externally threaded mouth. That is, the valve unit 120K comprises a cap body 50K, which has a conical valve part 14K at an intermediate portion

thereof. The valve unit 120K also has a funnel part 52a provided in the additive containing part 100M. The cap body 50K has upper and lower internal threads at positions above and under the conical valve part 14K, so that the cap body 50K is tightened at the lower internal threads thereof to the externally threaded mouth of the bottle 13, and is assembled at the upper threads thereof with the external threads of the additive containing part 1 OOM, such that an open lower end of the funnel part 52a is closed by the conical valve part 14K.

That is, the cap body 50K has the conical valve part 14K at the intermediate portion thereof, with the upper and lower internal threads formed in the cap body 50K at positions above and under the conical valve part 14K.

The additive containing part 100M defines the cavity therein to contain the additive, has the funnel part 52a at its lower portion. The lower end 52Ka of the funnel part 52a is brought into close contact with or spaced apart from the conical valve part 14K of the cap body 50K, thus acting as a valve seat. Therefore, it is possible to discharge the additive from the cavity of the additive containing part 100M into the bottle 13.

The additive containing part 100M has the external threads at its lower portion corresponding to the funnel part 52a, so that the additive containing part 100M is assembled at its external threads with the upper threads of the cap body 50K, such that the lower end 52Ka of the funnel part 52a comes into close contact with the conical valve part 14K of the cap body 50K.

The cap device according to the twenty-first embodiment is used with bottles having externally threaded mouths. In addition, since the conical valve part 14K of the cap body 50K is controlled to be brought into close contact with or spaced apart from the lower end 52Ka of the funnel part 52a, the additive smoothly flows from the cavity of the additive containing part 100M into the bottle 13. The user thus quickly mixes a precise amount of the additive with the bottled material to prepare a desired mixture in the bottle 13.

Industrial Applicability As described above, the present invention provides a cap device for bottles, which allows an additive contained therein and a bottled material to be stored and marketed while being maintained in their respective pure states, and is capable of mixing the additive with the bottled material to prepare a desired mixture in accordance with a simple rotating action of the cap device relative to the bottle, performed by a user, thereby allowing the user to easily prepare the mixture just before drinking or using the mixture.

The cap device of the present invention is thus effectively used to add an admixture to distilled liquor to prepare a cocktail, or to mix different color hair dyes together to prepare a new color hair dye, or to quickly add a liquid nutriment containing an edible staining solution to a bottled liquid beverage in response to an opening action of the cap device, so as to provide a fine view, caused by the liquid nutriment dissolving in the liquid beverage, to a user.

When using the cap device of the present invention, it is possible to accomplish the highest freshness of a mixture in the case of preparing a mixed beverage through the mixing, and to maximize the medical or chemical effects of a mixture in the case of preparing a mixed medicine or a mixed chemical through the mixing.

In addition, the cap device of the present invention allows a precise amount of additive and a bottled material to be separately stored in a single container, and mixes the precise amount of the additive with the bottled material in the container, so that the cap device is convenient to the users, and provides economical advantages to the manufacturers and users.

In an embodiment, a cap body, an additive containing part, and a valve means of the cap device are completely removed from a bottle at the same time after the additive is mixed with the bottled material, so that it is possible to quickly discharge the mixture from the bottle.

In addition, a vent hole which introduces air into the cavity of the additive

contain part to remove a vacuum pressure from the cavity, is formed in the cap body such that the vent hole is not exposed to the outside of the cap device. It is thus possible to prevent a malicious injection of harmful substances, such as poisonous substances, into the bottle through the vent hole, thus allowing the user to safely drink or use the mixture.

In the cap device of this invention, a pushing rod is projected from the inner surface of the neck of the bottle through an injection molding process, so that the bottle having the pushing rod is easily and simply produced without consumption of excessive time, thus improving workability and productivity while producing the bottles.

In the cap device of the present invention, a circular ring having a predetermined thickness integrally surrounds the outside ends of radial ribs of the valve means. The outside ends of the radial ribs are thus stably seated in the neck of the bottle.

In addition, a sealing means, comprising a plugging shank and an engaging part, is provided at a junction between the valve means and the lower end of the funnel part of the cap body, thus accomplishing an airtight or watertight sealing effect at the junction. It is thus possible to preserve the additive in the cavity of the cap device and the bottled material for a lengthy period of time, without allowing a chemical or physical change in the additive and the bottled material.

The operational effect of the cap device is thus maximized.

The cap device of the present invention also smoothly and naturally removes the vacuum pressure from the cavity containing the additive therein in response to the rotating action of the cap body in which the cap body is rotated to move relative to the mouth of the bottle, thus allowing the user to easily and conveniently use the cap device. In such a case, the cap device quickly removes the vacuum pressure from the cavity, thereby allowing the additive to smoothly flow from the cavity into the bottle through the lower end of the funnel part of the cap body in response to the rotating action of the cap body.

The cap device of the present invention may contain two or more different

additives therein, so that it is possible to enhance the operational effect of the cap device, as desired.

In an embodiment, the valve means of the cap device may comprise a double-walled cylindrical valve body having both a conical valve part and a plurality of radial ribs. In such a case, the valve means can be completely removed from the neck of a bottle, so that the cap device maximizes the flow rate of the mixture passing through the neck of the bottle.

The cap device of this invention may be freely designed such that it is used with containers having no threads at the mouths thereof, such as test tubes, and bottles having the threads at the mouths thereof.

Although preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.