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Title:
LID EQUIPPED WITH CUTTER FOR CUTTING AND PRESERVING FOOD PRODUCTS
Document Type and Number:
WIPO Patent Application WO/2018/041325
Kind Code:
A1
Abstract:
The lid equipped with the cutter (1) for food products that feature a substantially cylindrical shape of different diameter, or elongated food products of different cross section includes a hollow cylinder which is defined by an inner cover (10') and a base (12), wherein the base (12) contains the part (14) which in the closed position together with the base (12) functions as the lid for preserving said food products, whereas the part (14) in the open position has the function of cutting. The part (14) of the cylinder base (12) has the ability to be inclined around the axis b', which represents a change in the functioning of the invention from that of a lid to that of a cutter. According to the present invention the lid equipped with the cutter (1) is further comprising a cylindrical sleeve (10) enveloping the inner cover (10') such that the cylindrical sleeve (10) and the inner cover (10') mutually slidably rotate; and three flexible strips (11) arranged one above the other in the interior of the inner cover (10'), wherein each strip (11) is with its first end fixed to the inner cover (10') and with its second end is fixed to the cylindrical sleeve (10) in a manner that each strip (11) forms a circle which during the rotation of the inner cover (10') with respect to the cylindrical sleeve (10) narrows the circumference formed by each strip (11) until said strips envelope and hold the food product in a fixed position. The present invention is made of materials belonging to the category of all types of plastics, metals and ceramics, or a combination thereof, and which comply with the current standards of use for materials for food products.

Inventors:
LOKIN, Ljubomir (Vukovarska 13, Benkovac, HR-23420, HR)
Application Number:
EP2016/025092
Publication Date:
March 08, 2018
Filing Date:
August 27, 2016
Export Citation:
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Assignee:
LOKIN, Ljubomir (Vukovarska 13, Benkovac, HR-23420, HR)
International Classes:
B26D1/29; B26D3/11; B26D7/00; B26D7/01; B26D7/02
Foreign References:
DE102012104467A12013-11-28
US20160101533A12016-04-14
US20110192290A12011-08-11
US5771771A1998-06-30
NL1010596C12000-05-22
Attorney, Agent or Firm:
SUČIĆ, Tatjana et al. (Callidea Ltd, Ogrizoviceva 9, Zagreb, HR-10000, HR)
Download PDF:
Claims:
CLAIMS

1. A lid equipped with a cutter (1) for cutting food products featuring a substantial cylindrical shape of different diameter, or elongated food products of different cross section includes a hollow cylinder which is defined by an inner cover (10') and a base (12), wherein the base (12) contains the part (14) which in the closed position together with the base (12) functions as the lid for preserving said food products, and where the part (14) in the open position has the function of cutting; wherein the part (14) is performed from a right- angle cutting of the base (12) where the length of the side (b) complies with the size of the radius of the base (12) and is positioned so that the side (b) passes symmetrically through the base (12), and where the cutting has a perpendicular cross-section and the shape of a spike-right-angle triangle, where the triangle that closes the smaller angle functions as the blade of the knife (34) for the purpose of cutting, and the length of the smaller side (a) is variable and is determined in the manner that the angle a at which the part (14) is set with the respect to the base (12) is adapted for cutting the mentioned product, characterized by that the lid equipped with the cutter (1) further comprising a cylindrical sleeve (10) enveloping the inner cover (10') such that the cylindrical sleeve (10) and the inner cover (10') mutually slidably rotate; and three flexible strips (11) arranged one above the other in the interior of the inner cover (10'), wherein each strip (11) is with first end firmly fixed to the inner cover (10') and with its second end is firmly fixed to the cylindrical sleeve (10) in a manner that each strip (11) forms a circle which during the rotation of the inner cover (10') with respect to the cylindrical sleeve (10) narrows the circumference formed by each strip (11) until said strips envelope and hold the food product in a fixed position.

2. The lid equipped with a cutter (1) according to claim 1 , characterized by that said strips (11) are fixed to the inner cover (10') and to the cylindrical sleeve (10) in a manner that during cutting of the food product by way of rotation of the food product, wherein the rotation direction of the food product coincides with the rotation direction of the inner cover (10') with respect to the cylindrical sleeve (10), said rotation is causing narrowing of circumference formed by each strip (11) until said strips (11) envelope and hold the food product in a fixed position.

3. The lid equipped with a cutter (1) according to claims 1 and 2, characterized by that the inner cover (10') is provided with three slots (13), and likewise the cylindrical sleeve (10) is provided with three slots (15), wherein first and second ends of the strips (11) are passing through respective slots (13) and (15), where respective ends of the strips (11) are fixed to the inner cover (10') and cylindrical sleeve (10).

4. The lid equipped with a cutter (1) according to claim 3, characterized by that slots (13) of the inner cover (10') and slots (15) of the cylindrical sleeve (10) are arranged one above other, where slots (13) of the inner cover (10') are mutually positioned at 120°, and slots (15) of the cylindrical sleeve (10) are mutually positioned at 120°.

5. The lid equipped with a cutter (1) according to any of preceding claims, characterized by that flexible strips (11) are metallic sheet strips or strips made of flat plastics.

6. The lid equipped with a cutter (1) according to preceding claims, characterized by that respective ends of the flexible strips (11) are fixed to the inner cover (10') and to cylindrical sleeve (10) by welding, thermoplastic welding, gluing or by any fastening means enabling that the cylindrical sleeve (10) and the inner cover (10') mutually slidably rotate.

7. The lid equipped with a cutter (1) according to preceding claims, characterized by that the length of each strip (11) is such that the largest circle formed by each strip (11) fits inside circumference of the inner cover (10').

8. The lid equipped with the cutter (1) according to the preceding claims, characterised by that the material from which it is made belongs to the category of all types of plastics, metals and ceramics, or a combination thereof, and which comply with the current standards of use of materials for food products.

9. The lid equipped with the cutter (1) ) according to the preceding claims, characterised by that the function of cutting of food products featuring a substantially cylindrical shape of different diameter, or elongated food products of different cross section is performed in a manner that the dominant hand holds said product, while the other hand holds the cylindrical sleeve (10), and whereby by rotating said product in the direction of the blade of the knife (34) of the part (14), strips (11) narrow the circumference formed by each strip (11) until said strips (11) envelope and hold the food product in a fixed position so that the upper external side of the base (12) provides a slice of the desired thickness, and in the shape of a single slice or a spiral slice.

Description:
LID EQUIPPED WITH CUTTER FOR CUTTING AND PRESERVING FOOD PRODUCTS

DESCRIPTION OF THE INVENTION

Field of the invention

The present invention relates to a lid equipped with a cutter for cutting and preserving food products featuring a substantial cylindrical shape, wherein the cutter is further adapted for cutting food products featuring a substantial cylindrical shape having different diameter, or elongated food products of different cross section. The cutter according to the present invention has a two-fold function - cutting food products of different diameter or of different cross section, and hermetically preserving said food products. It has been classified according to the International Patent Classification (IPC) as: B26D 1/02 and B26D3/28.

Background of the invention

The fundamental technical issues in using the elongated food product featuring a substantially cylindrical shape, or the elongated food product featuring triangle, square or rectangular cross section, are dosing (cutting) and preservation of such fresh products for multiple use. The actual dosing (cutting) poses an additional problem, and refers to the safety of the actual process in preparing foods with the stated characteristics for consumption. Specifically, it is well known that children, and persons with impaired sight or the blind, due to safety reasons, cannot use existing (conventional) tools and devices for dosing or cutting of such food products. Users of cylindrically-shaped food products, or elongated food products of different cross section, for quality consumption essentially place an emphasis on the uniformity of the thickness dimensions of dosed (cut) consumable units (slices). In addition to the uniformity of the thickness dimensions of dosed (cut) consumable units, the present invention provides technical solution of cutting food products featuring a substantial cylindrical shape having different diameter, or elongated food products of different cross section.

Prior art

Given that it involves a category of food products used for centuries, logically there has been a relatively large number of attempts to solve the above said problems. The oldest and also the basic tool for dosing or cutting food products featuring a substantial cylindrical shape is the knife (sharpened piece of metal equipped with a handle) that cuts the respective products by applying pressure on the vertical blade placed at the desired thickness of cylindrical-shaped consumable food units. It features a simple design and applied polyvalence. However, the main problem is safety of usage and practically the inability of achieving uniform dosing (cutting) of products. The technological advancement of mankind in terms of this patent application has resulted in inventing an electrical machine for cutting substantially cylindrical-shaped food products operating on the principle of a rotating metal disk where the edge functions as a blade. While the machine features great precision of the cuttings and relatively large amounts of material can be cut within a given time, their main disadvantages are that they are expensive, prone to breaking down and evidently unsafe for use. In general, it should be noted that there are also other versions of the tools, e.g. a combination of cutting guide and metal blades, where the purpose of the design is to facilitate dosing or cutting and consumption of the mentioned food products. On the other hand, the preservation of already used food products featuring a substantially cylindrical shape has in the past been an exceedingly trivial problem for someone to seriously address the issue. Hence the mentioned food products are still today kept either in separate boxes equipped with a hermetical lid or simply by placing some sort of folio (aluminium or cellophane) over an open, consumable part of the product. Only recently has there appeared a relatively trivial solution to the lid in the form of a hollow plastic cylinder closed on one side with dimensions that conform exactly to one such type.

Patent documents reflecting the state of the art is noted in US 5,771 ,771 (A) [Visionary Design, Inc.] published on 30 June 1998 and NL 1010596 (C1) [EMPELEN PETRUS VAN] published on 22 May 2000. Document US 5,771 ,771 (A) discloses the device cutting sausage products that feature an elongated, generally cylindrical housing and primarily a circular component for cutting. The housing defines the chamber for cutting with dimensions appropriate for receiving sausage products, while the adjacent side includes a number of elongated, generally parallel axial slots which pass through it. The slots are mainly at equal distances from each other around the periphery of the adjacent side. The cutting component has an axial extension and rounded internal adjacent surface with diameters at least a little larger than the external part of the housing of the adjacent side. The cutting element extends around and is coaxial to the housing in addition to including numerous radial and internally directed blades, where the blades are at intervals to one another around the periphery of the cutting component. Accordingly, the axial movement of the cutting component with respect to the housing results in a number of parallel axial cuts of sausage products positioned in the cutting chamber. Document US 5,771 ,771 (A) further discloses the housing 14 defining a cutting chamber 28 sized for receiving the hot dog 12. The apparatus in US 5,771 ,771 (A) can be sized for a larger diameter product such as a knockwurst. Document NL 1010596 C1 shows the hand tool featuring a metal cylinder with an internal blade 3. When the sausage is inserted through canal 2, the blade or knife cuts an elongated slot into the sausage.

Both documents refer to hand devices or assemblies used for cutting or creating a slot along the sausage or foodstuffs that feature a substantially cylindrical shape. Neither of the cited documents provides technical solution of cutting elongated food products of different diameter, or of different cross section. The difference between the inventions in the cited documents refers to the fact that with the aid of the technical solution of the present invention, foodstuffs featuring substantially cylindrical shape of different diameter, or elongated food products of different cross section, can be hold within the cutter of the present invention and easily cut into slices of essentially the same thickness. The problem solved by the present invention may be regarded as provide a closable lid with a cutting function of food products featuring a substantial cylindrical shape of different diameter, or elongated food products of different cross section.

Detailed description of the invention

The object of the present invention is to provide a closable lid with a cutting function of food products featuring a substantial cylindrical shape of different diameter, or elongated food products of different cross section.

The second object of the invention is essentially to facilitate evenly dosing and cutting the mentioned products and preserving them for multiple consumption.

The third object of the invention is to essentially increase the level of safety when dosing or cutting foodstuffs that are substantially cylindrically shaped of different diameter, or elongated food products of different cross section.

Further object of the invention is that, at least in one its design versions, it is affordable to the widest spectrum of consumers of foodstuffs that feature a substantially cylindrical shape of different diameter, or elongated food products of different cross section.

The hand operating lid featuring the element used for cutting substantially cylindrical-shaped foodstuffs includes the dosing or cutting tool, and at the same time functions to preserve the freshness of such products, while unifying (cutting tool + food preservation lid) into one and the same easily handled and safe functional unit. Cylindrical shape of the invention does not need to conform to the shape of the product for which it is intended. The internal diameter of the lid equipped with the cutter does not need to coincide with the respective diameter of the food product though the invention has the shape of a hollow cylinder. The present invention is intended for cutting food product having such dimensions that said product can be positioned within an inner cylinder shell of the invention.

The aforementioned objects are satisfied by a lid equipped with a cutter for cutting food products featuring a substantial cylindrical shape of different diameter, or elongated food products of different cross section includes a hollow cylinder which is defined by an inner cover and a base, wherein the base contains a part which in the closed position together with the base functions as the lid for preserving said food products, whereas the part in the open position has the function of cutting; wherein the part is performed from a right-angle cutting of the base where the length of the side (b) complies with the size of the radius of the base and is positioned so that the side (b) passes symmetrically through the base, and where the cutting has a perpendicular cross-section and the shape of a spike- right-angle triangle, where the triangle that closes the smaller angle functions as the blade of the knife for the purpose of cutting, and the length of the smaller side (a) is variable and is determined in the manner that the angle a at which the part is set becomes suitable for cutting the mentioned product. The lid equipped with the cutter is further comprising a cylindrical sleeve enveloping the inner cover such that the cylindrical sleeve and the inner cover mutually slidably rotate; and three flexible strips arranged one above the other in the interior of the inner cover, wherein each strip is with first end firmly fixed to the inner cover and with second end is firmly fixed to the cylindrical sleeve in a manner that each strip forms a circle which during the rotation of the inner cover with respect to the cylindrical sleeve narrows the circumference formed by each strip until said strips envelope and hold the food product in a fixed steady position enabling safely cutting of said product.. The moveable or slanting part (14) is a right-angle cutting from the circular base of the cylinder where the longer side b coincides with the radius of the cylinder base, whereas around the other side b' the right-angle cutting rotates or revolves (Figure 1a). It becomes evident that the moveable part has right-angle or circular cross-section, and in that way we get a straight side a, whereas the other side is in the shape of an arch a' that follows the edge of the cylinder, and the sides a, a', b and b' have a mutually different length, i.e. the side that lies on the radius of the cylinder base (circle) is always longer. r = b > b'

a≠ a'

Rotation or inclination takes places around a continual line b' in the direction of the cylinder height (x, z level surface, towards the bottom picture 1b), where an angle of 0° the invention becomes a lid, whereas at any other angle it becomes a cutter. Therefore, the rotating or slanting part (14) is essentially a knife with the blade located on the side that coincides with the radius of the cylinder base. Worth mentioning is that the rotation can take place only towards the inside, therefore, towards the actual foodstuff onto which the hand operated lid equipped with the cutter is placed, whereas a rotation of 0° in the opposite direction upwards not possible.

The functioning of the lid is more than obvious; it can be placed into operation at the moment when the protective folio is removed from the food product featuring a substantially cylindrical shape, where the food product featuring a substantially cylindrical shape may have any diameter that is smaller than diameter of the cylindrical inner cover, or the food product has elongated shape of different cross section. Subsequently, the internal side of the cylinder (cover and base) come into contact with the food product sealing it hermetically.

Conversion into a cutting function is carried out in such a way that using the lever (an integral part of the rotating and moveable part; protrusion on the external side of the cylinder base) and using the appropriate depression in the actual base, we can change the angle a under which the moveable part or knife is set. If we use our hand to take the food product featuring a substantially cylindrical shape onto which we previously placed the invention, and subsequently changed its function from a lid to a cutter, and using the other hand hold the invention firmly, by rotating the food product in a clockwise direction (under the condition that the invention in the other hand does not rotate with the product) we get on the upper side of the cylinder a snip/slice, and of thickness directly dependent on the angle of the set knife or moveable part, featuring a spiral shape or precisely cut individual slice of the food product. Another way of operating the device is that the right-angle cutting that functions like a knife is placed fixed under the already defined angle a. The cylinder base additionally contains a protective component that covers the cylinder base and has the function of protecting and preserving the food product. The stated component has a circular shape with the dimensions of the cylinder base area, it is affixed so that it cannot separate from the external base of the cylinder by rotating around the vertical axis. The cylinder base on the external side contains a slot/chamfer in the shape of an arch and with a diameter that is less than the diameter of the cylinder base and is appropriately closer to the external radius of the cylinder base. In the desired manner of operating the invention, the slot/chamfer forms an arch of 90°. On the bottom side of the protective component, there is a protrusion so that when the lid equipped with the cutter in the folded position, it enters the mentioned slot/chamfer. This enables rotation of the protective component around the longitudinal axis of the lid by 90°. Furthermore, the mentioned slot/chamfer is positioned so that when it rotates around its axis which coincides with the longitudinal axis of the entire lid it closes or opens the right-angle cutting thereby achieving on the side the function of cutting and preserving a fresh food product or cutting it. Though the arch of the slot/chamfer is defined at 90°, the angle of the arch can be greater, such that it covers or uncovers the right-angle cutting. In addition to mentioned features, the present invention provides technical solution enabling cutting of food products featuring a substantial cylindrical shape, or food products have elongated shape of different cross sections, where the food product featuring a substantially cylindrical shape may have any diameter that is smaller than diameter of the cylindrical inner cover. The internal diameter of the lid equipped with the cutter does not need to coincide with the respective diameter of the food product though the invention has the shape of a hollow cylinder. Dimensions of the food product must be such that said product can be positioned within an inner cylinder shell of the invention.

Said technical solution is provided by that the lid equipped with the cutter further comprising a cylindrical sleeve enveloping the inner cover such that the cylindrical sleeve and the inner cover mutually slidably rotate; and three flexible strips, arranged one above the other, within the interior area of the inner cover wherein each strip is with first end fixed to the inner cover and with second end is fixed to the cylindrical sleeve in a manner that each strip forms a circle which during the rotation of the inner cover with respect to the cylindrical sleeve and narrows the circumference formed by each strip until said strips envelope and hold the food product in a fixed position.

Therefore, by the solution of the present invention it is enabled cutting of food products featuring a substantial cylindrical shape of different diameter, or elongated food products of different cross section.

Detailed description of the invention Brief description of the drawings

Further on the invention will be described in detail by referring to the following drawings:

- Figure 1.a shows the geometry of the lid base in the y-x plane, - Figure 1.b show the geometry of the lid base in the z-x plane,

- Figure 1 provides a spatial presentation of the invention functioning as a lid,

- Figure 2 provides a spatial presentation of the invention functioning as a cutter,

- Figure 3 shows the cross-section of the invention vertically in space based on one particular way the invention is operated in the cutting position,

- Figure 4 shows the cross-section of the invention vertically according to a particular way the invention operated functioning as a lid,

- Figure 5 shows the cross-section of the invention vertically that passes the centres of the protrusions and depressions on part 14 and the base; functioning as a cutter,

- Figure 6 shows the cross-section and angle a,

- Figure 7 shows the components of the invention in space according to another embodiment of the

invention,

- Figure 8 shows perspective view of individual components of the invention,

- Figure 9 shows perspective view of the lid equipped with a cutter for food products featuring a

substantially cylindrical shape of different diameter, or elongated food products of different cross section,

- Figure 10 shows perspective view of the lid equipped with a cutter for food products featuring a

substantially cylindrical shape of different diameter, or elongated food products of different cross section,

- Figure 11 shows perspective view of individual components of the present invention shown in figures 10 and 11 , and

- Figure 12 shows top view of the present invention.

The present invention relates to a lid equipped with a cutter for food products featuring a substantially cylindrical shape of different diameter, or elongated food products of different cross section, the cutter is used to cut slices of various thicknesses.

The category of food product incorporates semi-perishable and non-perishable cylinder-shaped meat products (sausages, salamis, and the like), cylinder-shaped cheeses, and possibly combinations of such (salamis with pieces of cheese, and the like). Further, term food products incorporate any product which has elongated shape featuring cylindrical shape, or elongated shape of different cross section. The cross section of a food product may be circle, square, oval, rectangle, or of any geometric shape. Beside above mentioned food products, the present invention can be used for slicing vegetable having elongated shape or for instance rectangular-shaped chesses. The internal diameter of the lid equipped with the cutter does not need to coincide with the respective diameter of the food product though the invention has the shape of a hollow cylinder. Dimensions of the food product must be such that product can be positioned within an inner cylinder shell of the invention. The materials from which the lid/cutter is made may in the first approximation be any type of plastic, metal or ceramics, including combinations thereof, and which meet current global and European standards with regard to materials that come into contact with food. For use with semi-perishable meat products and (softer) cheeses the lid/cutter may be made from a relatively large number of subtypes of plastics, metals and ceramics, including combinations thereof. For non-perishable sausages, which generally are harder than semi-perishable ones, the cutting section (knife) must be made from metal or ceramics or combinations thereof, whereas for the remaining system, the lid/cutter may be made from all of the mentioned materials or a combination thereof.

A cutter-equipped lid (1) intended for food products featuring a substantially cylindrical shape of different diameter, or elongated food products of different cross section, wherein the cutter is used to cut slices of food products of various thicknesses includes a hollow cylinder defined by an inner cover (10') and a single cylinder base (12), where said cylinder base (12) contains a part (14) which in the closed position and together with the base (12) functions as a lid for preserving the freshness of said food products, and in the open position has the function of cutting. The closed position is defined as the position of the part (14) at angle a of 0° with respect to the surface representing the base (12), whereas the open position is defined by the position of the part (14) at a particular angle a with respect to the surface representing the base (12) (Figures 1a; 1b).

Referring to Figure 1 , the inner cover (10') can be of an arbitrary thickness The base (12) of the cylinder is also of an arbitrary thickness and always retains a circular shape or shape of the internal side of the inner cover (10'). The most cost-effective material used to produce the inner cover (10') and the base (12) is a plastic certified for use with foodstuffs (high density polyethylene - PE-HD), however it is possible to produce this assembly of components from metals and ceramics that meet the sought certification standards for foodstuffs.

Referring to Figure 2 and comparing it with Figure 1 , we can conclude that the base (12) contains the moveable part (14) which is a cutting essentially of a right-angle shape and which can be inclined by an angle of a - the moveable part (14) of the cylinder base (12). This moveable part has a variable role - functioning as a lid the final invention serves as a lid (14) (Figure 4), whereas the knife (14) allows the invention to function as a cutter (Figure 5). Geometrically, the moveable part (14) of the cylinder base (12) is a cutting achieved by the right-angle cross- section of the larger side placed on the radius of the internal side of the inner cover (10') belonging to the cylinder and the circle that incorporates the base (12). The length of the smaller side a is arbitrary and is variable, and is determined by the angle under which the produced blade (Figure 1b and 3) is suitable for cutting food products. The moveable part (14) of the cylinder has a particular protrusion (16), and a depression (18, 20). The protrusion (16) serves as a lever for converting the invention from the lid to the cutter. The depression (20) serves to facilitate converting the final invention from the lid to the cutter, whereas the depression (18) on the protrusion (16) serves to successfully convert the final invention from the cutter to the lid. The cross-section of the protrusion (16) and depression (18, 20) are shown in Figures 4 and 5. The moveable part (14) throughout most of its cross-section has a triangular shape (Figure 3), where the sharpest tip of the profile serves as a knife blade. Figure 6 also shows the perpendicular cross-section of the moveable part (14). The top of the moveable part (14) comprises the knife blade (34) (see Fig. 5) which is used to cut food products whereas the opposite side of the surface, which while as part 14 functions as a knife, is inclined at an angle of at least a. The mentioned inclination enables the sitting of the mentioned surface of the moveable part (14) on the adjacent side of the base (12) when the part (14) functions as a cutter. A version is also possible where the mentioned opposite side of the part (14) is at an angle of 0° in which case the side of the base (12) onto which rests the surface of the moveable part (14) is inclined at an angle of at least a. The moveable part (14), as well as the inner cover (10') and the base (12) may be made from plastic, metal and/or ceramics that possess the appropriate properties stipulated by national and international standards for foodstuffs. However, given that the moveable part (14) functions as a knife, the material from which it is made additionally depends on the hardness and degree of homogeneity of the food product. Hence, the production of the invention for softer products may incorporate the knife (14) made from plastics possessing the appropriate hardness, whereas for harder products, the knife is made from metals and/or ceramics, which leads to the further conclusion that the moveable part (14) may be made of at least two types of materials (e.g. combination of plastics, metal and/or ceramics).

The final positions in the rotation of the knife (14) are arbitrarily and the value of angle a depends on the thickness of the slice when utilising the cutting function. Shown below is the mathematical formula for the relationship between the angle of inclination of the knife (14) and the thickness a slice of a food product featuring the mentioned properties. d = I sin a— d b

Where d is the thickness of a slice, / is the length of the upper side of the triangle (cross-section of the knife (14)); the hypotenuse of the right-angled triangle comprising the upper side of the knife (14) functioning as a cutter, a is the angle which the moveable part - knife (14) makes when passing from the lid function to the cutter function and vice-versa, and db is the thickness of the base wall of the cylinder (12) reduced by the thickness of the limited upwards rotation to position 0°. The thickness d of the slices depends on the angle of inclination a of the moveable part (14). One of the ways the invention can operate is by varying the angle of inclination a of the moveable part (14) such that the part (14) can be fixed at the desired angle a. Fixing the part (14) is achieved by the protrusion on the adjacent side of the moveable part (14) which sits on the cover (10) which in turn contains a certain number of slots into which the respective protrusions enter on the adjacent side of the moveable part (14), thereby establishing various angles of inclination a and various thicknesses d of slices. The respective protrusions and slots serve to fix the moveable part (14) at the desired angle a.

Geometrically, the part (14) of the base (12) is a cutting obtained from the cross-section of the right-angle of the larger side placed in the radius of the internal side of the cover (10) belonging to the cylinder and circle that incorporate the base (12). The length of the smaller side is arbitrary or changeable, and is determined such that the angle under which the blade is produced becomes suitable for cutting food products. This manner of operating the invention of the lid function is taken up by the rotating lid (24). The rotating lid (24) has a circular shape with a radius that of the base (12) which is flat and sits from the external side of the base (12). The rotating lid (24) has a cutting surface (36) which dimensions conforming to the size of the right-angle cutting (14). Just as with the right- angle cutting comprising the part (14), the cut surface (36) has the same shape that follows the arch of the base (12). Using the component (26) in the form of a hook, the rotating lid (24) is retained at the external side of the base (12) so that it can rotate around its longitudinal/vertical axis (axis z in Figure 1b), which passes through the centre of the entire assembly. The number of components (24) shown in the Figure 8 is 4, however it can be less, e.g. 3 or 2. In order to limit the rotating of the lid (24), on the lower side of the lid (24) is a protrusion (30) that enters into an appropriately shaped slot (32) cut into the external side of the base (12). The slot (32) has the shape of a circle featuring a smaller diameter that the diameter of the base (12). According to the drawings, the slot (32) consists of an arch at 90° and is positioned so as to enable the covering of the cutting (14) using the rotating lid (24) when the invention's function is to preserve fresh food products, or the uncovering of the cutting (14) when the invention's function is to cut. The arch of the slot (32) may exceed 90° and be less than 180°. On the upper side of the external surface of the lid (24), there is a protrusion (28) that functions as a handle which in turn facilitates the rotation of the lid (24).

Figures 9 to 12 show the closable lid with a cutting function of food products featuring a substantial cylindrical shape of different diameter, or elongated food products of different cross section. The food product featuring a substantially cylindrical shape may have any diameter that is smaller than diameter of the cylindrical inner cover (10'). The internal diameter (10') of the lid equipped with the cutter (1) does not need to coincide with the respective diameter of the food product though the invention has the shape of a hollow cylinder. Dimensions of the food product must be such that product can be positioned within an inner cylinder shell of the invention.

Referring to Figs. 9 and 10, the lid equipped with a cutter (1) for cutting food products featuring a substantial cylindrical shape of different diameter, or elongated food products of different cross section includes a hollow cylinder which is defined by an inner cover (10') and a base (12), wherein the base (12) contains the part (14) which in the closed position together with the base (12) functions as the lid for preserving said food products, whereas the part (14) in the open position has the function of cutting; wherein the part (14) is performed from a right-angle cutting of the base (12). The lid equipped with the cutter (1) is further comprising a cylindrical sleeve (10) enveloping the inner cover (10') such that the cylindrical sleeve (10) and the inner cover (10') mutually slidably rotate; and three flexible strips (11) arranged one above the other in the interior of the inner cover (10'), wherein each strip (11) is with first end fixed to the inner cover (10') and with second end is fixed to the cylindrical sleeve (10) in a manner that each strip (11) forms a circle which during the rotation of the inner cover (10') with respect to the cylindrical sleeve (10) narrows the circumference formed by each strip (11) until said strips envelope and hold the food product in a fixed position. Respective ends of the flexible strips (11) are fixed to the inner cover (10') and to cylindrical sleeve (10) by welding, thermoplastic welding, gluing or by any fastening means enabling that the cylindrical sleeve (10) and the inner cover (10') mutually slidably rotate. The height of the inner cover (10') and of the cylindrical sleeve (10) is equal. According to embodiment of the invention, the base (12) and the inner cover (10') are made out of one piece of material, wherein the base (12) has outer diameter bigger than the outer diameter of the inner cover (10') which allows leaning of the cylindrical sleeve (10) on the base (12), and present invention is assembled state, the outer diameter of the base (12) substantially coincides with the outer diameter of the cylindrical sleeve (10).

Said strips (11) are fixed to the inner cover (10') and to the cylindrical sleeve (10) in a manner that during performing cutting of the food product by way of rotation of the food product, wherein the rotation direction of the food product coincides with the rotation direction of the inner cover (10') with respect to the cylindrical sleeve (10), said rotation causes narrowing of circumference formed by each strip (11 ). The inner cover (10') is provided with three slots (13), and likewise the cylindrical sleeve (10) is provided with three slots (15). First and second ends of the strips (11) are passing through respective slots (13) and (15), where respective ends of the strips (11) are firmly fixed to the inner cover (10') and to the cylindrical sleeve (10). Slots (13) of the inner cover (10') are arranged one above other and mutually positioned at 120°. Likewise, slots (15) of the cylindrical sleeve (10) are arranged one above other and mutually positioned at 120°. As shown on Figs. 10 and 12, by such configuration three strips (11) are arranged one above other, and by rotating of the cylindrical sleeve (10) with respect to the inner cover (10') in the direction of cutting the food product, the circumference formed by each strip (11) is narrowed until said strips (11) envelope and hold the food product in a fixed position. By mutually positioning slots (13; 15) at 120° firm grip of the food product is provided.

Flexible strips (11) are made of metallic sheet strips or are strips made of flat plastics. The length of each strip (11) is such that the largest circle formed by each strip (11) fits inside circumference of the inner cover (10').

Cutting of food products featuring a substantially cylindrical shape of different diameter, or elongated food products of different cross section is performed in a manner that the dominant hand holds said product, while the other hand holds the cylindrical sleeve (10), and whereby by rotating said product in the direction of the blade of the knife (34) of the part (14), strips (11) narrow the circumference formed by each strip (11) until said strips (11) envelope and hold the food product in a fixed position so that the upper external side of the base (12) provides a slice of the desired thickness, and in the shape of a single slice or spiral slice. The present invention can be produced in the above mentioned manner as an aid that is a cost-effective, reliable and durable way of solving the problem of preserving and dosing (cutting) food products featuring a substantially cylindrical shape of different diameter, or elongated food products of different cross section. Depending on the type of material used to produce the invention, so that for instance the invention produced from plastics essentially has a shorter lifetime than the version made from metal and/or ceramics, and which primarily owes to less durability of the connection of the part (14) and the base (12), and a higher rate of blunting during the use of softer materials. It is important to further note that the application of the present invention conforms to a relatively high level of safe use by the end user. The present invention fully manufactured from plastics (PE-HD) cannot harm the end user, therefore the conclusion is that this version of the invention is safe for use by children, those with impaired vision and blind persons.