Field of Invention

The present invention relates to the technical field concerning devices for styling hair, such as hair rollers.

Background of the Invention

The present invention relates to a hair roller. A plurality of hair waving and curling devices are known destined to be used by operators in both the professional sector and public sector to perform a variety of hairstyling effects or permanents such as curly or wavy hair or whatever is desirable according to the user or the customer's wishes. There are a variety of many known hair styling devices for creating artificial waves and curls in a person's hair. Examples of such devices include curlers, wands, crimpers, rollers and tongs. Hair straighteners originally used to straighten hair can also impart a curl or wave into hair. Hair waving and curling devices are fundamentally constituted by a shaped body on which a lock of hair is wound for defining a predetermined hair effect of the lock of hair wound on the body.

In some cases, the body on which the lock of hair is wound may exhibit a constant transversal section over the longitudinal extension thereof, while in other cases the body may exhibit a series of undulations extending longitudinally. Alternatively the undulations may have a zigzag formation or may have a box wave profile or the body may exhibit a substantially cylindrical portion. Curling tongs, rollers, conical wands and the like have a substantially cylindrical portion that extends longitudinally and the hair is wrapped around this cylindrical portion. The contact surface of the cylindrical portion may have straight or spiral separating protrusions disposed in spaced relation to each other and in a pattern extending substantially across the entire width and length of surface and extending outwardly from the cylindrical portion. However, these protrusions are for separating the hair and holding the hair in position and the shape of the hair effect produced is substantially determined by the cylindrical portion and not the separating protrusions.

Predominately it is the shape, size and radius of the hair receiving portions of the device which determine the hair effect produced. It is desirable to provide a hair styling device which can produce new styles.

It is desirable to provide a hair styling device in a non heated and heated version.

It is desirable to provide a hair styling device that retains heat and disperses the transfer of heat to the hair more efficiently.

Known prior art heated hair rollers generally only have one core member to absorb and radiate heat to the body and contact surfaces, therefore there is a need for a hair roller that may comprise two core members that may offer a more efficient absorption and transfer of heat to the body and contact surfaces.

Known prior art devices in this sector used for purpose may have a fixed body shape. This is particularly disadvantageous as the operator may be constrained creatively by design and limited in what can be achieved.

There is a widespread and continuing desire to create new and fashionable hairstyles but the styles possible are limited to those which can be produced with existing devices, therefore there is a need for a hair roller that provides a more flexible body for more effective and efficient styling of the hair.

Statement of Invention

According to the present invention, there is provided a dividing hair roller comprising: Two separable portions that form a substantially cylindrical shaped body extending in the longitudinal direction adapted to allow a lock of hair to be clamped between hair receiving members on the inner side of each portion and then wound around the outer contact surface of the body wherein the outer contact surface of the body is substantially cylindrical extending in the longitudinal direction.

According to a first embodiment of the invention, the body comprising of two separable portions, each portion includes an inner side that comprises a hair receiving member and an outer side comprising a contact surface. Each portion is opposite to each other respectively.

According to a first embodiment of the invention, the body comprises of two separable portions of differing shapes and proportion. Portion 1 exhibits a substantially curvilinear shaped form to the body. The curvature extends substantially outwards on the outer side of the body and substantially inwards on the inner side of the body. Portion 2 exhibits a substantially curvilinear shaped form to the body. The curvature extends substantially outwards on both the outer and inner side of the portion. The inwardly extending curvature on the inner side of portion 1 is designed to compatibly interconnect with the outwardly extending curvature on the inner side of portion 2 so as to form a substantially cylindrical shaped body extending in the longitudinal direction.

The outer side of the body of the portions having a contact surface that may include a coating. The coating may comprise examples such as thermoplastic or soft cloth material such as felt or Velcro.

The inner side of the portions comprise a hair receiving member having a contact surface that may include a coating as set forth in the aforementioned.

According to a first embodiment of the invention, the body of each individual portion may be fabricated to comprise a framed form that may exhibit a plurality of apertures of any suitable size and shape disposed in spaced relation to each other and in a pattern extending substantially across the entire width and length of the surface area. The two portions each include a proximal end and distal end. The portions are connected or coupled at the proximal ends of each portion thereby a linking member that may be any type of hinged mechanism right for purpose. Examples such as a loaded spring type or rod shaft pin or a pivotal connection.

According to a first embodiment of the present invention, the linking mechanism may comprise a clip member that may extend substantially outward from the proximal ends of the portions as two separate linked parts. The clip member can be manipulated by the user in conjunction with the linking member to enable the portions to divide and separate and be movable between open and dosed positions.

According to a second embodiment, of the invention, the dividing hair roller may be adapted to apply heat to the hair to at least temporarily maintain the produced hair effect According to the present invention, the second embodiment of the invention may include some or all of the like features and parts of the aforementioned first embodiment as set forth hereinbefore.

According to a second embodiment of the invention, the dividing hair roller may include a heater/or heaters or may be associated with a suitable heating system for heating at least the contact surfaces. The heating system may be a hair roller compartment of a type comprising a heater/or heaters.

According to a second embodiment of the invention, the heating system would comprise a heater/or heaters. Any suitable type of heater device may be used, examples such as a flexible polyimide heater pad or PTC heater or a flexible silicon covered heater pad or a rope heater.

According to a second embodiment of the invention, the aforementioned heating system preferably receives power from an electrical outlet via power cord. It should also be appreciated the heating system may also be powered, for example by a battery or any other sources of power deemed suitable. According to a second embodiment of the invention, the aforementioned associated heating system may comprise of one or more electrical resistance member(s). The hair styling device or heating system may include or may be associated with a thermostatic control member for varying the operating temperature.

According to a second embodiment of the invention, the body of each portion of the dividing hair roller may comprise a core. A portion of the core may contain a wax or polypropylene type composition for the purpose of absorbing heat from the associated heater/or heaters to then subsequently radiate the heat through the core to the body and contact surfaces. The transfer of heat to the body and contact surfaces using this method to heat the core members would be by convection.

According to a second embodiment of the invention, the portions of the dividing hair roller may comprise a core. The core may be of any suitable size or shape as is right for purpose.

According to a second embodiment of the invention, the body is disposed around the core so as to surround the core. The core is usually made from a thermally conductive material such as copper, aluminium or a type of steel or any suitable material. According to the second embodiment of the invention, the aforementioned associated heating system/heater used to heat the two core members may be configured so as to comprise two designated heating members for the two core members of each individual dividing hair roller. A further object according to a second embodiment of the invention is to provide a dividing hair roller that retains heat and disperses the transfer of heat at a constant and even preferred temperature for the required period of time desired by the user.

According to a second embodiment of the invention, the body does not heat at the same rate as the core. Subsequently the body is maintained cool relative to the heated core allowing the device to be held safely by the body to then be clamped to the lock of hair and then wound around the body of the dividing hair roller for the styling of the hair. A further object according to another embodiment of the second embodiment of the invention, the body of each portion of the dividing hair roller may comprise a heater wherein the transfer of heat from the heater through the core to the hair receiving members and outer contact surfaces of the body of the dividing hair roller is by conduction.

A further object according to the present invention is to provide other embodiments whereby the separable portions of the body of the dividing hair roller may be identical or different in shape and may be of an equal or non-equal proportion relative to each other. According to a third embodiment of the present invention, the dividing hair roller may be adapted for creating permanent hair effects known to those skilled in the art as a perm or permanent

A further object according to the present invention is all embodiments of the invention may comprise some or all of the like features and parts described in the aforementioned embodiments as set forth hereinbefore.

A further object according to the present invention is to provide a dividing hair roller that may be adapted to at least assist the application of a chemical perm lotion or styling product to the hair to at least temporarily maintain the produced hair effect.

A yet further object according to particular embodiments of the present invention is to provide a dividing hair roller wherein the body of the separable portions and all contact surfaces and hair receiving members may comprise a frame member operable to assist the flow of chemical perm lotion or styling product to the lock of hair wound around the outer contact surface of the body and clamped between the hair receiving members on the inner sides of the portions of the dividing hair roller.

A yet further object according to particular embodiments of the invention is to provide a dividing hair roller wherein the body of the separable portions, hair receiving members and all contact surfaces may include a plurality of apertures being arranged and operable to assist the flow of the chemical perm lotion or styling product applied to the lock of hair wound around the outer contact surface of the body and clamped between the hair receiving members on the inner sides of the portions of the dividing hair roller.

A yet further object according to the present invention is the body and all contact surfaces of the dividing hair roller may be comprised of any suitable chemical resistant and thermally conductive material, examples such as a type of thermoplastic or aluminium may be used.

A still further object of the present invention is to provide a dividing hair roller which may allow to obtain a different curling and waving on the whole length of hair. A still further object of the present invention is to provide a dividing hair roller which may make it easier for the user to obtain the desired results.

A still further object of the present invention is to provide a dividing hair roller which may naturally hold the hair while it is being treated to produce the effect.

A still further object of the present invention is to provide a dividing hair roller shaped in such a way as to avoid any hair damage.

A yet still further object of the present invention is to provide a dividing hair roller which may allow to obtain the hair styling as desired and produce new styles.

Finally a further object of the present invention is to provide a hair styling device that can curl, wave and create root lift and produce new and known hair effects for those skilled in the art and which is extremely reliable and functional for the operator thus guaranteeing maximum safety during the operating stage with regard to the locks of hair treated and the safety of the user undergoing the treatment to her or his hair.

Advantages

Advantageously, the present invention has a dividing body that may enhance creative performance and easiness of use of the device.

Advantageously, the present invention proposes particular embodiments of a dividing hair roller characterised in that they may include a shaped body extending in the longitudinal direction comprising two separable portions coupled or connected at their proximal ends thereby a linking member to form the clip structures. Advantageously, in particular embodiments of the present invention, the two portions have an inner side and an outer side opposite and relative to each other, the outer sides of the portions comprising a contact surface and the inner sides comprising a hair receiving member.

Advantageously, the separable portions of the body of the dividing hair roller may be identical or different in shape and may be of an equal or non equal proportion relative to each other.

Advantageously, according to the present invention, the dividing hair roller may be clamped directly to the root area of the lock of hair to create root lift allowing the user to create the desired effect on the remainder of the lock of hair protruding from the device.

Advantageously, according to the present invention, the dividing hair roller may be clipped and/or clamped directly on to any part of the lock of hair and accordingly the remaining hair can then be wound therearound the outer contact surface of the dividing hair roller. To those skilled in the art this may provide more flexibility when styling the hair and enhance the easiness of use of the tool and may offer more improved all round creative performance to both the user and the hairstyling device. Known prior art hair rollers are conventionally wound from the end portion/or piece of the lock of hair and are generally not used in the same manner described above. Advantageously, the dividing hair roller can be clipped/or clamped to the lock of hair using only one hand. This may prove helpful to the user if this was the only method available due to any physical reason that prevented the user being able to use both hands for attachment. Prior art hair rollers are generally attached to the end portion/or piece of the lock of hair using both hands.

Advantageously, all embodiments of the present invention may comprise a linking member that enables the separable portions to separate and be movable between open and closed positions while still remaining connected or coupled at a specific point of the linking member. Advantageously, the linking member may comprise a clip member attached thereto that the user can manipulate in conjunction with the linking member to move the separable portions between open and closed positions.

Advantageously, according to the present invention, the body of the dividing hair roller may include a non-limiting array of separable portions as may be deemed right for the purpose of creating hairstyles and hair effects by those skilled in the art. Advantageously, according to the present invention, the dividing hair roller and all parts thereof may be fabricated in a non-limiting number of different sizes, configurations and colours for semi-permanent, permanent, heated and non-heated hair applications for the purpose of hair styling. Advantageously, according to particular embodiments of the invention, the hair receiving members on the inner side of each portion may be a fixed part or may be removably attached to the body of each portion. A plurality of hair receiving members may be provided. Each of the plurality of hair receiving members may vary in appearance allowing those skilled in the art more choice when practising the art of hairstyling.

Advantageously, according to the present invention, all embodiments of the dividing hair roller may be made in a non-heated and heated version.

Advantageously, according a second embodiment of the present invention, both of the separable portions that form the complete body and shape of the dividing hair roller may comprise a core for the purpose of absorbing heat and subsequently radiating and transferring the heat to the hair receiving members and outer contact surfaces of the body of the dividing hair roller. The core may be made from a thermally conductive material such as aluminium, copper or steel or any other suitable metal or material deemed right for purpose by those skilled in the art.

Advantageously, according to another embodiment of the second embodiment of the invention, both of the separable portions that form the complete body and shape of the dividing hair roller may comprise a heater wherein the transfer of heat from the heater to the hair receiving members and outer contact surfaces of the body of the dividing hair roller is by conduction.

Advantageously, according to the second embodiment of the present invention, the dividing hair roller may include or may be associated with a thermostatic control member for varying the operating temperature of the heating system. This may be a hair roller compartment comprising a heater/or heaters for heating the core member/or members.

Advantageously, according to the second embodiment of the present invention, the heating system contained within the aforementioned hair roller compartment may comprise two heating members designated for and to heat the core members comprised within the body of the two portions. This may improve the time required to reach the operating temperature of the dividing hair roller and may offer an improved and more efficient and even transfer of heat to the hair receiving members and outer contact surfaces of the body of the dividing hair roller.

Advantageously, according to a third embodiment of the invention, the dividing hair roller may be adapted to be used for the hair treatment known to those skilled in the art as a perm or permanent.

Description of Drawings

The accompanying drawings illustrate and depict various embodiments of the invention. The characteristic features of the invention will be made evident in the following description with reference to the enclosed drawings and written description in which preferred but not exclusive embodiments of the invention are illustrated with reference to the accompanying figures of the drawings in which: Figure 1 shows a perspective front view of a hair styling device according to a first embodiment of the invention; Figure 2 shows a perspective rear view of the hairstyling device of Figures 1 , 3 and 4 having a clip member and linking member;

Figure 3 shows a perspective view of the hairstyling device of Figures 1 and 2 in an open position showing the inner side of the device;

Figure 4 shows a perspective front view of a hair styling device according to a second embodiment of the aforementioned first embodiment of the invention in which the portions have a core member;

Figure 5 shows a perspective front view of a hair styling device according to another embodiment of the present invention in which the portions are of an equal proportion to each other; Figure 6 shows a perspective rear view of the hairstyling device of Figures 5, 7, 8, 9 and 10 having a clip member;

Figure 7 shows a perspective front view of the hair styling device of Figures 5 and 6 in the open position showing a linking member and the flat plate hair receiving members comprising a plurality of apertures.

Figure 8 shows a perspective view of the hair styling device of Figures 5, 6 and 7 showing a lock of hair placed thereupon the flat plate hair receiving members when the portions are in an open position;

Figure 9 shows a perspective front view of the hair styling device according to a second embodiment of the aforementioned embodiment of the present invention in which the separable portions individually have a core member; Figure 10 shows a perspective front view of the hairstyling device of Figure 9 in the open position showing the linking member, the flat plate hair receiving members comprising a plurality of apertures and showing the core members comprised within each individual portion; Figure 1 1 shows a perspective view of the hair styling device of Figures 5, 6, 7, 8, 9 and 10 depicting an exemplary illustration of a coating applied to the surface of the body; Figure 12 shows a perspective side view of a further embodiment of the present invention in the open position comprising two portions of differing proportions showing the body comprising a clip member;

Figure 13 shows a perspective side view of a second embodiment of the aforementioned embodiment of the present invention in the open position comprising two portions of differing proportions in which one portion comprises a core member;

Figure 14 shows a perspective side view of a further embodiment of the present invention in which there are two separable portions having an undulating shape, the portions being coupled by a linking member that comprises a clip member;

Figure 15 shows a perspective side view of a further embodiment of the present invention having a body comprising of soft foam; Figure 16 shows a perspective view of a further embodiment of the present invention in which the separable portions are flat plate members connected by a linking member comprising a clip member;

Figure 17 shows a perspective view of the body of a dividing hair roller before any type of coating is applied thereto. The body comprising two separable portions fabricated and formed as a frame member;

Figure 18 shows an exemplary illustration of a portion of an associated heating system adapted to comprise two heating members to heat the two core members contained within the body of particular embodiments of a dividing hair roller;

Figure 19 shows an exemplary illustration of a heater contained within the core member in each portion of the body of a dividing hair roller;

Figure 20 is a front view of a final embodiment of a hair roller according to the invention; Figure 21 is an end view of the final embodiment;

Figure 22 is a cross-sectional end view of the final embodiment;

Figure 23 is an exploded perspective view of the final embodiment from the distal end;

Figure 24 is an exploded perspective view of the final embodiment from the proximal end;

Figure 25 is a side view of the final embodiment; Figure 26 is a rear view of the final embodiment; and

Figure 27 is side view, opposite to the side view shown in Figure 25.

Reference numbers for drawings, Figures 1 to 27

1. Portion one of the body

2. Portion two of the body

3. The inner side

4. The inner side

5. The outer side 6. The outer side

7. The outer contact surface 8. The outer contact surface

9. The dividing hair roller

10. Distal end

1 1. Distal end

12. Proximal end

13. Proximal end

14. Clip member

15. Linking member

16. Hair receiving member

17. Hair receiving member

18. Core member

19. Core member

20. Portion of heating system/hair roller compartment

21. Heating member

22. Heating member

23. Heater housing 24. Heater housing

25. Apertures

26. Coating

27. Soft foam

28. Protrusions

29. Lock of hair

30. Frame member

31. Plate member

32. Plate member

33. Thermostatic control member

34. Power cord

35. Upper concave portion

36. Lower concave portion

50. Final embodiment

51. Complementary interengaging portion

52. Complementary interengaging portion 53. Proximal end

54. Proximal end

55. Spring loaded clasp

56. Spring loaded clasp

57. Tab

58. Tab

61. Concave mating surface 62. Convex mating surface 65. Vent holes

67. Inclined shoulder

68. Inclined shoulder

69. Mating edge

70. Mating edge

71. Mating edge

72. Mating edge

74. Inner core

75. Inner core Detailed Description of certain embodiments of the Invention

Figures 1 and 2 show respective views front and rear of a first embodiment of the present invention, a dividing hair roller generally represented by reference numeral 9. The dividing hair roller 9 has a body comprising two separable portions 1 , 2 of differing shapes and proportion that form a substantially cylindrical shape extending in the longitudinal direction, each portion 1 , 2 comprising a distal end 10, Hand a proximal end 12, 13.

The portions 1 , 2 are connected or coupled at the proximal ends 12, 13 of each individual portion 1 , 2 respectively thereby a linking member 15 that can comprise a clip member 14 that can extend substantially outwards from the proximal ends 12, 13 of the portions 1 , 2 as two separate linked parts. The two parts of the clip member 14 can be manipulated by the user in conjunction with the linking member 15 to enable the portions 1, 2 to separate and be moveable between open and closed positions. Referring to Figure 3 showing the aforementioned first embodiment of the invention in the open position, both portions 1 , 2 including an outer side 5, 6 having a contact surface 7, 8 that can include a coating 26 and an inner side 3, 4 comprising a hair receiving member 16, 17. The outer side 5 of portion 1 exhibits a substantially curvilinear shaped form extending in an outwardly direction. The hair receiving member 16 on the inner side 3 of portion 1 exhibits a substantially curvilinear shaped form extending in a inwardly direction. The outer side 6 of portion 2 exhibits a substantially curvilinear shaped form extending in a outwardly direction. The hair receiving member 17 on the inner side 4 of portion 2 exhibits a substantially curvilinear shaped form that also extends in a outwardly direction. Referring to Figures 1 , 2, and 3, the aforementioned first embodiment of the invention, the inwardly extending curvature of the hair receiving member 16 on the inner side 3 of portion 1 is formed so as to compatibly interconnect with the outwardly extending curvature of the hair receiving member 17 on the inner side 4 of portion 2 so as to form a substantially cylindrical shaped body portions 1 , 2 extending in the longitudinal direction.

Referring to Figures 1 and 2, the aforementioned first embodiment of the invention, wherein the distal ends 10, 11 and proximal ends 12, 13 of each individual portion 1 , 2 are illustrated to show and exhibit a substantially inwardly extending bevel to their form. If preferred for production, this can enable the clip member 1 to be recessed in to the body portions 1 , 2 at the proximal ends 12, 13 of the dividing hair roller 9 wherein the clip member 14 would not extend or protrude beyond the proximal ends 12, 13 of the said portions 1 , 2 wherein the clip member 14 is still easily accessible and practical in terms of use for the operator. In other particular embodiments of the invention, the clip member 14 can extend substantially outwards beyond the proximal end/or ends 12, 13 of the device. All embodiments of the invention can exhibit any shape or configuration to the distal ends 10, 1 1 and proximal ends 12, 13 of the device as is required for the purpose of practical usage and aesthetic appearance of the hairstyling device.

Figure 4 discloses a second embodiment of the aforementioned first embodiment of the invention constructed in accordance with the teachings of the present invention and in which like features and parts bear like reference numerals to the first embodiment set forth hereinbefore wherein the body portions 1 , 2 have been adapted to apply heat to the hair wherein the body portions 1 , 2 comprises a core member 18, 19. The body portions 1 , 2 is disposed around the core 18, 19 so as to surround the core 18, 19. A portion of the core 18, 19 can contain a wax or polypropylene type composition for the purpose of absorbing heat. The core 18, 19 can comprise a heater 21 , 22 or be associated with a heating system 20 that can include a heater 21 , 22 The heater 21 , 22 can heat the core 18, 19 to the required temperature. The core member 18, 19 can then radiate and transfer the heat to the hair receiving members 16, 17 and outer contact surfaces 7, 8 of the body portions 1 , 2 and subsequently to the lock of hair 29 wound around the dividing hair roller 9. The hairstyling device itself or the associated heating system 20 can comprise a thermostatic control member 33 for varying the operating temperature of the heater 21 , 22 used to heat the core member 18, 19. The core 18, 19 can be made from any safe thermally conductive material such as copper, aluminium or a type of steel or any suitable material.

Figures 5, 6, 7 and 8 disclose a further embodiment of the invention exhibiting another variation and configuration of a dividing hair roller 9 constructed in accordance with the teachings of the present invention and in which like parts bear like reference numerals to the first embodiment set forth hereinbefore wherein the dividing hair roller 9 has a body portions 1 , 2 comprising two identical separable portions 1 , 2 which form a substantially cylindrical shape extending in the longitudinal direction, each portion 1 , 2 individually having a distal end 10, 11 and a proximal end 12, 13. Individually each portion 1 , 2 includes an outer contact surface 7, 8 that can include a coating 26 and an inner side 3, 4 that comprises a hair receiving member 16, 17 shown in Figure 7 as a flat plate member exhibiting a plurality of apertures 25. The portions 1 , 2 are connected or coupled at the proximal end 12, 13 of each individual portion 1 , 2 respectively thereby the said linking member 15 that can comprise the said clip member 14 that can extend substantially outwards from the proximal ends 12, 13 of the portions 1 , 2 as two separate linked parts. The two parts of clip member 14 can be manipulated by the user in conjunction with the linking member 15 to enable the portions 1, 2 to separate and be movable between open and closed positions.

As illustrated in Figure 8, when the dividing hair roller 9 is engaged in an open position, a lock of hair 29 can be placed on one of, or between, the hair receiving members 16, 17 on the inner sides 3, 4 of the said portions 1 , 2. The closed position can then be engaged by the user manipulating the said clip member 14 attached thereto the said linking member 15, thus clamping the lock of hair 29 between the hair receiving members 16, 17 when the closed position has been engaged. The body portions 1 , 2 in particular embodiments set forth hereinbefore will form a substantially cylindrical shape preferably outlining a path for which to wind the lock of hair 29 there around the outer contact surface 7, 8 of the body portions 1 , 2 of the dividing hair roller 9. It is desirable the hair is secured simply by winding the lock of hair 29 around and into the dividing hair roller 9. Alternatively, a clip of a type may be used to clamp the lock of hair 29 wound around the dividing hair roller 9 to the user's head. The aforementioned method of use can be applied to any of the aforementioned embodiments set forth hereinbefore or any other embodiments thereof the present invention if desired. Figures 9 and 10 illustrate a second embodiment of the aforementioned embodiment of the invention constructed in accordance with the teachings of the present invention and in which like features and parts bear like reference numerals to the embodiment set forth hereinbefore wherein the dividing hair roller 9 has been adapted to apply heat to the hair to at least temporarily maintain the produced hair effect and wherein the body portions 1 , 2 comprise a core member 18, 19 for the purpose of absorbing and providing heat to the dividing hair roller 9 in accordance with what has been described and set forth hereinbefore in the first description mentioned of a second embodiment of the invention. Figure 11 shows a perspective view of the hairstyling device of Figures 5, 6, 7, 8, 9 and 10 depicting an exemplary illustration of a coating 26 applied to the outer side 5, 6 of the body portions 1 , 2 of the dividing hair roller. Figure 12 illustrates yet another embodiment of the invention exhibiting another variation and configuration of a dividing hair roller 9 constructed in accordance with the teachings of the present invention and in which like parts bear like reference numerals to the aforementioned embodiments set forth hereinbefore wherein the dividing hair roller 9 has body portions 1 , 2 comprising two separable portions 1 , 2 of differing shapes and proportions that form a relatively substantially cylindrical shape extending in the longitudinal direction, individually each portion 1 , 2 comprising a distal end 10, 11 and a proximal end 12, 13. Portion 1 exhibits a curvilinear shaped form comprising an inner side 3 that can include a hair receiving member 16 that can comprise a coating 26 and an outer side 5 having a contact surface 8 that can include a coating 26. Portion 2 exhibits a substantially cylindrical shaped form extending in the longitudinal direction comprising an inner side 4 that can include a frame member 30 and an outer side 6 having a contact surface 7 that can include a coating 26. Portion 1 is correspondingly shaped to the adjacent cylindrical shaped body of portion 2 enabling both portions 1 , 2 to compatibly interconnect and disconnect when moved between open and closed positions by the aforementioned said linking member 15 that can comprise the said clip member 14 attached thereto.

Figure 13 discloses a second embodiment of the aforementioned embodiment of the invention constructed in accordance with the teachings of the present invention and in which like features and parts bear like reference numerals to the embodiments set forth hereinbefore wherein the dividing hair roller 9 has been adapted to apply heat to the hair and wherein the body portions 1 , 2 of the dividing hair roller 9 can comprise any of the previously described components required for the purpose of heating the dividing hair roller 9 as set forth hereinbefore in the first description mentioned of a second embodiment of the invention. In this second embodiment of the aforementioned embodiment of the invention, only one of the two separable portions 1 , 2 comprise a core member 18. The core member 18 can include or be associated with the said heater 21 or said heating system 20 that includes a heater 21 to heat the said core member 18. The body of portion 2 is disposed around the said core member 18. Figure 14 shows another embodiment of the invention wherein the hairstyling device comprises two portions 1 , 2, each portion including a distal end 10, 11 and a proximal end 12, 13. The portions are connected or coupled at the proximal ends 12, 13 by the said linking member 15 that can comprise the said clip member 14 attached thereto. Each portion 1 , 2 exhibits an undulating profile extending in the longitudinal direction wherein alternating upper concave portions 35 and lower concave portions 36 are defined between undulations and wherein the concave portion 35, 36 of each undulation is adapted to receive a portion of the lock of hair 29 to be styled and wherein the undulating profile defines a first contact surface and a second contact surface arranged in use to be in contact with the lock of hair 29 wound around the device and wherein the undulations on portion 1 are configured so as to compatibly interconnect with the undulations on portion 2 so as to enable the device to engage a closed position so as to clamp the lock of hair 29 between the opposing adjacent contiguous undulations thereof.

Figure 15 shows another embodiment of the invention constructed in accordance with the teachings of the present invention in which like features and parts bear like reference numerals to particular embodiments mentioned and set forth hereinbefore wherein the body portions 1 , 2 and hair receiving members 16, 17 can be comprised of a suitable soft foam 27 type material allowing the user to sleep in comfort with the soft foam 27 body portions 1 , 2 of the dividing hair roller 9 attached to their head if desired.

Figure 16 shows another embodiment of the present invention wherein the body portion 1 , 2 of the device can simply comprise of two flat plate members 31 , 32 of any width, length or depth, each having a distal end 10, 1 1 and a proximal end 12, 13. The inner sides 3, 4 and outer sides 5, 6 of the plate members 31 , 32 can be featureless or include features. The plate members 31 , 32 can be connected or coupled at the proximal end 12, 13 by the said linking member 15 that can comprise the said clip member 14 attached thereto. Figure 17 shows a perspective view of a body portions 1 , 2 of a dividing hair roller 9 comprising two separable portions 1 , 2. The body portions 1 , 2 are fabricated and formed as a frame member 30 before a coating 26 is applied. This type of framed design 30 can be applied to the body portions 1 , 2 of particular embodiments of the invention. Figure 18 shows an exemplary illustration of a portion of an associated heating system 20 that includes a thermostatic control member 33. The heating system 20 comprises heating members 21 , 22 contained within the heater housing 23, 24. The heating members 21 , 22 are adapted to heat the two core members 18, 19 contained within the body of each portion 1 , 2. This type of heating system 20 can be used for particular embodiments of the invention

Figure 19 shows an exemplary illustration of a dividing hair roller 9 comprising within each portion 1 , 2 a heater 21 , 22 contained within heater housing 23, 24. The heater 21 , 22 and heater housing 23, 24 are all parts in this embodiment of the present invention that make up the core member 18, 19 contained within the body portion 1 , 2 of the dividing hair roller 9.

Particular embodiments of the dividing hair roller 9 can be used for creating root lift to the lock of hair 29 and hair style. To achieve this, the user would first engage the dividing hair roller 9 in to the open position by the method as set forth hereinbefore. The root area of the lock of hair 29 should be then placed in position between the hair receiving members 16, 17 on the inner sides 3, 4 of the portions 1 , 2. The portions 1 , 2 can then be moved into the closed position thus clamping the root area of the lock of hair 29 between the hair receiving members 16, 17. The remainder of the lock of hair 29 protruding from the dividing hair roller 9 can then be fashioned in to the desired hair effect. The aforementioned method of use can be applied to particular embodiments set forth hereinbefore or other embodiments thereof the present invention.

As illustrated in Figures 1 , 2 ,3 ,4, 5, 6, 7, 8, 9, 10, 11 , 12, 13, 14, 15, 16, 17, 18, 19, the dividing hair roller 9 has a body portion 1 , 2 comprising two separable portions 1 , 2. In all embodiments of the present invention, the body portions 1 , 2 and any parts thereof can be produced in an unlimited number of different sizes enabling one skilled in the art to produce a variety of waves, curls and hair effects of differing shapes and configurations. The dividing hair roller 9 can exhibit a diameter and shape to its complete form that is known and deemed suitable for the purpose of hairstyling by those skilled in the art. The body portions 1 , 2 of the dividing hair roller 9 and any parts thereof can be made from any safe suitable chemical resistant and thermally conductive materials such as aluminium, copper or steel or a type of thermoplastic or any other material deemed right for purpose. The separable portions 1 , 2 that form the complete shape of the body portions 1 , 2 of the dividing hair roller 9 can be made and assembled from the necessary vital separate components that form the body of each individual portion 1 , 2. Or the portions 1 , 2 can each be individually made as one entity to comprise the shape of the portions 1 , 2, the hair receiving members 16, 17 and some/or all of the textures and features required for the outer contact surface 7, 8, hair receiving members 16, 17 and any other parts thereof or if preferred some of the textures and features can be added at another stage of the manufacturing process. Injection moulding can be one of the possible methods used for production by the use of a mould designed and profiled to incorporate all/or as many facets of each portion 1 , 2 required and desired. Other methods of manufacture can also be considered.

The body portions 1 , 2 of the dividing hair roller 9 can be fabricated in a number of different configurations to include textures and features thus providing a wider choice of options for hairstyling to those skilled in the art. The configurations can be exhibited in various forms, examples such as undulations. The undulations can also have a zig zag shape to their formation or can have a box wave profile or the undulations can be substantially sinusoidal.

It is not intended the term "sinusoidal" be interpreted using the strict mathematical definition.

The body portions 1 , 2 can also exhibit various textures and features such as a plurality of apertures 25 or circular, straight or spiral separating protrusions 28 disposed in spaced relation to each other in a pattern extending across the entire surface area and outward from the body portions 1 , 2.

Referring to Figure 11 showing a dividing hair roller comprising a coating, in all the aforementioned embodiments set forth hereinbefore and all embodiments thereof the present invention, the outer side 5, 6 of the body portions 1 , 2, the outer contact surface 7, 8 can comprise a coating 26. It is desirable the coating 26 is a layer of a suitable material arranged around the outer side 5, 6 of the body portions 1 , 2 of each individual portion 1 , 2 respectively. The coating 26 can exhibit a number of different forms, textures and features, examples such as a coating 26 of thermoplastic particles moulded into the form of circular or straight or spiral separating protrusions 28 disposed in spaced relation to each other and in a pattern extending outward and substantially across the entire width and length of the outer contact surface 7, 8. The coating 26 can also be comprised of any suitable soft cloth material such as felt or Velcro or any fabric or material deemed right for purpose by those skilled in the art.

The coating 26 can offer improved texture to the outer contact surface 7, 8 of the body portions 1 , 2 for gripping and styling the lock of hair 29 and can contribute to wear and corrosion resistance of the body portions 1 , 2. All embodiments of the present invention can comprise a coating 26 of a type that can include any of the aforementioned or any other type of coatings 26 that may be deemed suitable by those skilled in the art for the purpose of hairstyling. The method of attaching, connecting or applying the coating 26 to the outer side 5, 6 of the body portions 1 , 2 of the dividing hair roller 9 can comprise chemical bonding. Alternatively, fixings or a fastener of a type or an adhesive layer between the outer side 5, 6 of the body portions 1 , 2 and the coating 26. Other methods of connection can also be considered. If injection moulding is one of the preferred methods for production, a mould can be designed and profiled to incorporate the coating 26 and some/or all of the textures and features desired, or some/or all of the features can be added at another stage of the manufacturing process if preferred or required.

In some particular embodiments of the invention, the hair receiving members 16, 17 on the inner sides 3, 4 of the portions 1 , 2 can be a fixed part of the body portion 1 , 2 wherein other particular embodiments of the present invention, the body portions 1 , 2 of the dividing hair roller 9, can be fabricated so the hair receiving members 16, 17 can be removably attached to the body portions 1 , 2, thus allowing the user to change the hair receiving members 16, 17. Indeed the dividing hair roller 9 can be provided as a kit with a number of different hair receiving members 16, 17, each exhibiting a different configuration, texture or feature providing a wider choice of options that work best for the user when styling the hair.

In reference to the particular embodiments wherein the aforementioned hair receiving members 16, 17 can be removably attached to the body portions 1 , 2 of the dividing hair roller 9, this can be achieved by a number of different methods of attachment and detachment, examples such as a series of connecting clips attached to the hair receiving members 16, 17 configured so as to compatibly interconnect with clip receiving members on the body portions 1 , 2. The user would simply apply a closing force in the direction of the hair receiving members 16, 17 to lock the connecting clips attached to the hair receiving members 16, 17 into position on the body portions 1 , 2. For detachment of the hair receiving members 16, 17, the user can simply apply a pulling force in the opposite direction of the body portions 1 , 2. Or a press to engage and release button of a type can be fitted to the body portions 1 , 2 to enable easy attachment and detachment of the hair receiving members 16, 17. Alternatively, a slide on and slide off method can be another system used. The aforementioned type of connections are given only as examples, other methods of attachment and detachment can also be considered for production. Referring to all figures shown of the aforementioned embodiments of the present invention, the linking member 15 connected or coupled at the proximal end 12, 13 of each portion 1 , 2 respectively, would be described as being configured to apply a closing force to the body portions 1 , 2 until manually opened by the clip member 14 attached thereto the linking member 15. The clip member 14 can be manipulated by the user in conjunction with the linking member 15 to enable the portions 1 , 2 to separate and be movable between open and closed positions.

The linking member 15 can be attached to the body portions 1 , 2 by any suitable method of connection, examples such as chemical bonding. Alternatively, the method of attachment may comprise at least one of compression and fixings or can be by a layer of adhesive applied to the opposing surface areas to be connected. Alternatively connecting clips attached to the opposing surface areas designed to compatibly interconnect by simply applying a closing or locking force to secure the mechanism into the required position to the body portions 1 , 2. The aforementioned types of attachment are given only as examples, other methods of connection can also be considered.

In all of the aforementioned embodiments of the present invention and any other embodiments thereof, the linking member 15 can be any type of joint or hinge type mechanism, examples such as a loaded spring, that can be configured to maintain the portions 1 , 2 in a closed position until manually opened by the user manipulating the said clip member 14 attached thereto the linking member 15. The linking member 15 can also be configured to maintain the portions 1 , 2 apart and separate from each other so as the dividing hair roller 9 would exhibit a constant open position until manually closed by the user applying a closing force in the direction of the two opposing portions 1 , 2. The linking member 15 can also be a rod shaft pin type mechanism that enables one portion to pivot or rotate relative to the opposing portions. The user can apply a closing force in the opposite direction of the opening force of the pivotal connection to push together the opposing portions 1 , 2 so as to close the dividing hair roller 9.

Any type of linking member 15 used to enable the separable portions 1 , 2 to be moveable between open and closed positions including the aforementioned linking members 15 can comprise or not comprise a clip member 14. This will be significantly dependent on the way the linking member 15 has been configured in accordance with the chosen method of use.

Preferably all second embodiments of the dividing hair roller 9 can include a heater or be associated with a suitable heating system 20 that comprises a heater 21 , 22 for drying the lock of hair 29 wound around the dividing hair roller 9, examples such as a hood dryer, a heat lamp or a hand held hair dryer that can incorporate a diffuser or a hair roller compartment 20 comprising a heater 21 , 22 or any other suitable heating system 20 deemed suitable by those skilled in the art. Alternatively the lock of hair 29 wound around the dividing roller 9 can be left to dry naturally in accordance with the surrounding ambient temperature. According to a second embodiment of the invention, the dividing hair roller 9 can comprise a heater 21 , 22 or be associated with a suitable heating system 20 that includes a heater 21 , 22. This can be a hair roller compartment 20 of a type comprising a heater/or heaters 21 , 22 that can comprise a thermostatic control member 33 for varying the operating temperature. The dividing hair roller 9 can be placed in the hair roller compartment 20. The heater/or heaters 21 , 22 heats the core members 18, 19 of each of the number of dividing hair rollers 9 placed in the hair roller compartment 20. The heater/or heaters 21 , 22 heats the dividing hair roller 9 to the required temperature. The dividing hair rollers 9 can then remain in the compartment 20 until they are needed for the styling of the locks of hair 29. According to a second embodiment of the invention, the body portions 1 , 2 does not heat at the same rate as the core member 18, 19, subsequently the body portions 1 , 2 is maintained cool relative to the heated core member 18, 19, thus allowing the device to be held safely by the body portions 1 , 2 to then be clamped to the lock of hair 29 and wound around the outer contact surface 7, 8 of the body portions 1 , 2 of the dividing hair roller 9 for the styling of the lock of hair 29.

The heating system 20 comprising a heater/or heaters 21 , 22 preferably receives power from an electrical outlet via a power cord 34. It should also be appreciated the heating system 20 and heater 21 , 22 can be powered for example by battery or any other electrical power source deemed suitable. The heating system 20 and heaters 21 , 22 may comprise of one or more electrical resistance members. The hair styling device may include or may be associated with a thermostatic control member 33 for varying the operating temperature of the heating system 20 and heater 21 , 22. The dividing hair roller 9 can also be associated with alternative heating systems such as a hood dryer or heat lamp or a conventional hair dryer can also be used to apply heat to the dividing hair roller 9.

According to the second embodiment of the present invention shown in Figure 18 is a portion of a type of heating system 20 illustrating two heating members 21 , 22, shown for the sake of simplicity to be mounted on the periphery of the base of the said heating system 20 and extending substantially perpendicular thereto. The heater/or heaters 21 , 22 can be housed 23, 24 by any suitable material such as aluminium, copper or steel or any other material deemed right for purpose. As shown in Figure18, the core members 18, 19 can be placed over and on to the housing 23, 24 surrounding the heating members 21 , 22 to heat the core members 18, 19 to the required temperature for the styling of the lock hair 29 wound around the dividing hair roller 9.

According to the second embodiment of the present invention as shown in Figure 19, the body portions 1 , 2 of the dividing hair roller 9 can be adapted to comprise a heater 21 , 22. The heater 21 , 22 can be housed 23, 24 by any suitable thermally conductive material such as aluminium or copper or steel. The body portions 1 , 2 is disposed around the heater housing 23, 24 comprising the heater 21 , 22 so as to surround the heater housing 23, 24. The heater housing 23, 24 comprising the heater 21. 22 would be described in this embodiment of a dividing hair roller 9 as the core member 18, 19.

According to the aforementioned particular second embodiments of the invention wherein the dividing hair roller 9 can comprise two core members 18, 19. This may improve the time required to reach the operating temperature of the dividing hair roller 9 and may distribute a more even and efficient transfer of heat to the hair receiving members 16, 17 and outer contact surfaces 7, 8 of the body portions 1 , 2 and then subsequently to the lock of hair 29 wound around the dividing hair roller 9. Prior art heated rollers generally only have one core member 18, 19 and so only require one heating member 21 , 22 per roller. The heat transfer from the core member 18, 19 to the hair receiving members 16, 17 and the outer contact surfaces 7, 8 of the body portions 1 , 2 would be by convection if there was an associated method of heating the core members 18, 19 such as a heating system 20 comprising a heater/or heaters 21 , 22 or would be by conduction if the heater 21 , 22 was an integrated part of the core member 18, 19 and the body portions 1 , 2 of the dividing hair roller 9.

In reference to the aforementioned heater 21 , 22, any suitable heater device can be used, examples such as a flexible polyimide heater pad or a PTC heater or a flexible silicon covered heater pad or a rope heater. If a flexible polyimide heater pad is used or a flexible silicon covered heater pad, the construction is formed by inserting the aforementioned heater pads into a hollow metal extrusion wherein the extrusion is compressed to provide physical contact between the heater pad and the walls of the extrusion and then is subsequently formed to produce the required shape. If a PTC heater is used, the hollow extrusion can simply be placed over the PTC heater so as to be disposed around the PTC heater. Any suitable method to house 23, 24 the heater 21 , 22 can be used. If preferred the heater housing 23, 24 can include a ceramic coating, this is for wear resistance and aesthetics. Heat is transferred from the heater 21 , 22 to the metal heater housing 23, 24 and is drawn out to the outer skin of the ceramic coating. In reference to the aforementioned second embodiment of the invention as shown in Figure 19, the body of each portion 1 , 2 of the dividing hair roller 9 can comprise a heater 21 , 22 contained within the core member 18, 19 wherein the transfer of heat from the heater 21 , 22 through the heater housing 23, 24 to the hair receiving members 16, 17 and the outer contact surface 7, 8 of the body portions 1 , 2 is by conduction. Using this described method of heating the body portion 1 , 2 of the dividing hair roller 9, there would be no requirement for the said wax or polypropylene type composition to be installed in to a portion of the core member 18, 19. According to a third embodiment of the invention, the dividing hair roller 9 may be adapted for creating hair effects known by those skilled in the art as a perm or permanent and is achieved through the application of chemical perm lotions to the hair when wrapped around a device designed for purpose.

According to particular embodiments of the present invention, wherein the body portions 1 , 2 and hair receiving members 16, 17 can comprise a frame member 30 operable to assist the flow of chemical perm lotions or styling products applied to the lock of hair 29 clamped between the hair receiving members 16, 17 on the inner sides 3, 4 of the said portions 1 , 2 and wound around the outer contact surface 7, 8 of the body portions 1 , 2 of the dividing hair roller 9.

According to other particular embodiments of the present invention wherein the body 1 , 2 and hair receiving members 16, 17 includes a plurality of apertures 25 being arranged and operable to assist the flow of a chemical or styling product applied to the lock of hair 29 clamped between the hair receiving members 16, 17 on the inner sides 3, 4 of the portions 1 , 2 and wound around the outer contact surface 7, 8 of the body portion 1 , 2 of the dividing hair roller 9. Referring to the aforementioned third embodiment of the invention wherein the body portions 1 , 2 can be adapted for the process known to those skilled in the art as perming/or permanents generally used to impart waves and curls in a person's hair. The perming process includes a perm lotion and a neutralising lotion. These types of lotions are made in a variety of different types of formulations and are usually very specific to a particular manufacturer's specification. Examples of perm lotions are acid perms. They generally have an acid pH of 6-7 and are made of a chemical called glycerol monothioglycollate. There are also alkaline perm lotions. They normally have a pH of approximately 9.5 but generally come in different strengths. Alkaline perms usually include conditioning agents added to them. The main chemical ingredient in alkaline perm lotion is ammonium thioglycollate. There are also exothermic perms, they can be a mixture of alkaline and acid or acid/alkaline depending on the manufacturer. There are also what is known as dual action perms. In this type of perm the chemical lotion tends to be ammonium thioglycollate. All perms are generally a two step process. First the hair is treated using one of the aforementioned perm lotions then to complete the process a neutralising agent is applied to the hair. The neutralising chemicals used are generally either hydrogen peroxide or sodium bromate.

Referring the aforementioned styling products used in conjunction with the dividing hair roller 9, these come in a vast array of different compositions and formulations using many different types of chemical ingredients which are generally very specific to each individual manufacturer and in some cases can be deemed a trade secret. For the sake of simplicity only some examples of styling products will be mentioned, these can include the likes of heat defence sprays, setting lotions, blow dry lotions, conditioning lotions, hairspray, volumising sprays and mousses, etc.

Referring to Figures 20 to 27 of the drawings, the final embodiment 50 of hair roller according to the invention, comprises two complementary interengaging portions 51 and 52 which are pivotally attached together at their proximal ends 53 and 54 by a spring loaded clasp 55 and 56 which can be operated by a user pressing a thumb and finger on the respective tabs 57 and 58. The portion 51 is generally of a half barrel shape with a concave mating surface 61 for engaging with portion 52. The shape of the portion 52 is generally of a barrel shape and has a convex surface 62 complementary with the concave surface 61. Located about the surfaces of both portions 51 and 52 are a multiplicity of vent holes 65 which allow the retained heat in the roller to permeate through the hair trapped between the convex surface 62 and concave surface 61 and wound around the outer surfaces of the portions 51 and 52.

The use of the concave surface 61 to engage with the convex surface 62 ensures that no crease line is formed on the hair trapped between the portions 51 and 52. To ensure that a person's hair stays on the roller, inclined shoulders 67 and 68 are provided at the distal and proximal ends of the roller, with the respective shoulder on each portions 51 and 52 having mating edges 69 and 70; and 71 and 72 respectively. The inner cores 74 and 75 of the portions 51 and 52 may be provided with any heat retaining material as previously described. The embodiment 50 may be made of any suitable thermosetting material or a thermoplastic material, such as polyprophlene.

In a separate modification of the final embodiment 50, not shown in the drawings, the vent holes 65 are absent and the heat transfer from the heat roller is transferred to the hair on the roller by conduction through the material of the portions 51 and 52.

While specific embodiments and objects of the present invention have been described above, it should be understood that the foregoing descriptions are only illustrative as a non- limiting example. It will be appreciated that practical-usage variations may be devised by those skilled in the art. Accordingly it is intended that all variances, modifications and alternatives are embraced by the present invention and that departures from the described embodiments and objects may still fall within protective scope as described above and claimed below.