Lids, especially for a roasting or cooking vessel

The lid with a shape-changeable unit adjusts to minimize heated air volume and prevent boiling over, addressing energy loss and overflow issues in cooking vessels.

DE102023116831A1Pending Publication Date: 2025-01-02WARIMEX WAREN IMPORT EXPORT HANDELS
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Patent Information

Application Number
DE102023116831
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-06-27
Publication Date
2025-01-02

AI Technical Summary

Technical Problem

Existing cooking or frying vessels suffer from energy loss due to heating the volume of air above the liquid and the risk of liquids boiling over when heated, especially with small volumes.

Method used

A lid with a circular ring and a disk connected by a shape-changeable unit, allowing adjustable distance between the ring and disk to minimize air volume and prevent boiling over, featuring a foldable silicone body for easy cleaning and adjustable depth into the vessel.

Benefits of technology

Reduces energy loss by minimizing heated air volume and prevents liquids from boiling over by adjusting the lid's depth and shape to fit various vessel sizes, ensuring stability and visibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a lid for a roasting or cooking vessel comprising a circular ring, a disc and a shape-changeable unit arranged between the circular ring and the disc, connecting the circular ring and the disc.
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Description

[0001] The present invention relates to a lid, in particular for a frying or cooking vessel, having the features of patent claim 1. background

[0002] In the kitchen, liquids are often heated in a cooking or frying pan. When heating liquids, such as milk or liquids containing protein, to very high temperatures, they often foam and, as a result, increase in volume almost instantly, causing the liquid to boil over and overflow from the cooking or frying pan.

[0003] Furthermore, it's well known that when heating liquids in the kitchen, a large portion of the energy used escapes from the top of the cooking or frying pan if there's no lid on the pan. Therefore, to save energy, it's recommended to always use a cooking or frying pan with a lid.

[0004] However, if only a small amount of liquid is to be heated in a cooking or frying vessel, even if a lid is placed on the cooking or frying vessel, the volume of air in the cooking or frying vessel between the surface of the liquid and the lid is also heated, although this is not necessary. State of the art

[0005] From WO 2001 / 06902, Gastronorm containers according to DIN 66075 are known, with a base and side walls, wherein the height and / or the width of the paired opposite side walls (2) can be jointly set in a variable manner, and / or the width and / or the depth of the base (1) can be varied accordingly.

[0006] From DE 20 2016 106 572 U1 a foldable pot made of silicone with a pot body is known, wherein the pot body has a heat-conducting base, an annular silicone wall, and a frame, in which the lower part of the annular silicone wall is firmly connected to the heat-conducting base and the frame is firmly connected to the upper part of the annular silicone wall.

[0007] EP 2 324 739 A1 discloses a cooking vessel attachment for preventing liquids from boiling over, especially liquids with a high protein or starch content that foam during cooking, such as milk, potato or pasta cooking water, or the like. The attachment is designed as a collecting tray and has at least one opening for the liquid to pass through. Associated with the opening(s) is at least one flat closure element connected to the cooking vessel attachment. Task

[0008] It is now the object of the present invention to show a possibility of reducing the volume in a cooking or frying vessel between the liquid present in the cooking or frying vessel which is to be heated and the volume of the cooking or frying vessel, so that only a remaining small volume of air in the cooking or frying vessel has to be heated and at the same time to prevent the liquid from boiling over when heating in the cooking or frying vessel. Solution

[0009] This problem is solved by means of the features of patent claim 1.

[0010] The invention relates to a lid for a cooking or frying vessel, wherein the lid consists of at least one circular ring, a disc, and a shape-changing unit arranged between the circular ring and the disc, connecting the circular ring and the disc. By means of the shape-changing unit, the distance between the circular ring and the disc can be changed, at least between a first distance between the circular ring and the disc, which represents the initial position between the circular ring and the disc, and a second distance between the circular ring and the disc, which represents the final deflection position between the circular ring and the disc.

[0011] The lid is intended to cover an opening in a cooking or frying vessel. In the case of a cylindrical cooking or frying vessel, the lid is round and has a circular ring with which the lid is placed on the rim of the cooking or frying vessel. The disc arranged below the circular ring, which is connected to the circular ring via the shape-changing unit, has a diameter slightly smaller than the diameter of the cooking or frying vessel and can engage with the cooking or frying vessel. Because the disc below the circular ring is connected via the shape-changing unit, it penetrates somewhat “deeper” into the cooking or frying vessel. The distance between the circular ring and the disc can now be changed so that the circular ring penetrates deeper into the cooking or frying vessel.In the final deflection position, the annulus and the disc, connected by the shape-changing unit, are arranged at the furthest apart position. In this case, the disc penetrates the deepest into the cooking or frying vessel. If a liquid is to be heated in the cooking or frying vessel, the distance between the annulus and the disc can be selected so that when the annulus rests on the cooking or frying vessel, the distance between the surface of the liquid and the disc is small. This minimizes the air volume between the disc and the liquid surface and minimizes energy losses when heating the liquid.

[0012] In the initial position, the distance between the circular ring and the disc is minimized, so that when the lid is stowed away, it has a smaller volume.

[0013] Furthermore, the diameter of the discs is smaller than the diameter of the circular ring and the diameter of the circular ring, otherwise it could not be inserted into a cooking or frying vessel.

[0014] Because the diameter of the discs is slightly smaller than the diameter of the cooking or frying vessel, a gap remains between the side wall of the cooking or frying vessel and the disc. If the liquid in the cooking or frying vessel foams up when heated, the disc prevents further foaming beyond the edge of the disc, just as if a wooden spoon were placed on the edge of the cooking or frying vessel or inside the cooking or frying vessel, whereby the wooden spoon, preferably made of metal, must extend above the liquid.

[0015] In an advantageous embodiment of the invention according to claim 2, it is provided that the distance between the circular ring and the disc is almost the same both in the initial position and in the final deflection position, perpendicular to the circumference of the disc and the circular ring. This ensures that the disc is positioned almost flush with the bottom of the cooking or frying vessel.

[0016] In an advantageous embodiment of the invention according to claim 3, it is provided that additional distances can be accommodated between the disc and the circular ring between the initial position and the final deflection position. This allows the depth of penetration of the disc into the cooking or frying vessel to be varied.

[0017] In an advantageous embodiment of the invention according to claim 4, the shape-changing unit is made of silicone or plastic. This makes the shape-changing unit easy to clean, temperature-resistant, and has a smooth surface. The shape-changing unit can be folded and unfolded between the initial position and the final deflection position of the lid.

[0018] In an advantageous embodiment of the invention according to claim 5, it is provided that the shape-changing unit is connected to the circular ring on the side thereof, circumferentially and approximately centrally on the circular ring, and the connecting surface between the circular ring and the shape-changing unit has a circular ring shape, and the shape-changing unit is connected to the disc on the side of the disc opposite the circular ring, wherein the connection between the shape-changing unit and the disc forms a further circular ring shape. The shape-changing unit thus forms a mechanical connection to both the disc and the circular ring, which creates an even force distribution in the ring and the discs. Furthermore, the connection between the shape-changing unit and the disc, as well as to the circular ring, is formed by a further circular ring shape and forms a gas-, vapor- and / or liquid-tight transition.

[0019] In an advantageous embodiment of the invention according to claim 6, the connection between the shape-changing unit and the annulus, as well as the connection between the shape-changing unit and the disc, is an adhesive connection. A silicone-based adhesive that is heat- and UV-resistant can be used here, thus forming a firm and resilient connection between the shape-changing unit and the disc or annulus.

[0020] In an advantageous embodiment of the invention according to claim 7, the circular ring is made of plastic or silicone, and the disc is made of glass or transparent plastic. Choosing a glass or transparent plastic disc ensures that the liquid in the cooking or frying vessel is visible. Furthermore, both glass and plastic can be easily bonded with silicone, ensuring a stable and force-fitting connection between the shape-changing unit and the circular ring and disc, thus ensuring a secure bond.

[0021] In an advantageous embodiment of the invention according to claim 8, the shape-changing unit forms a lateral surface between the circular ring and the disk, wherein the lateral surface is tensioned in the final deflection position and folded or collapsed in the starting position. This allows the lid to be easily stowed in the starting position because it takes up little volume. In the final deflection position, the lateral surface is tensioned and can therefore be easily and quickly cleaned. Furthermore, the lid is stable in its formed shape in the final deflection position because the material tension of the shape-changing unit keeps the circular ring and the disk spaced apart from one another in the final deflection position.

[0022] In a further advantageous embodiment of the invention, material thickenings are incorporated in the lateral surface, which extend at equidistant intervals from the disc to the circular ring and / or encircle the lateral surface parallel to the circular ring and arranged equidistant from one another.

[0023] In an advantageous embodiment of the invention according to claim 9, the outer surface of the shape-changing unit has a material thickness of one to five millimeters. This choice of material thickness makes the outer surface durable and provides a sufficiently stable connection between the disc and the annulus.

[0024] In an advantageous embodiment of the invention according to claim 10, the outer surface forms a hollow cylindrical shape and the outer surface is closed. The hollow cylindrical shape ensures sufficient stability. The closed outer surface, i.e., no perforations or openings in the outer surface, prevents liquid or other material from penetrating the outer surface of the shape-changing unit during cooking. Furthermore, it is alternatively provided that the outer surface tapers in cross-section, starting from the circular ring and ending in a disc. This allows the outer surfaces to be folded side by side when folded, and there is no material thickening.

[0025] In an advantageous embodiment of the invention according to claim 11, a handle is provided on the side of the circular ring facing away from the disc. This allows the lid to be easily handled.

[0026] In a further advantageous embodiment of the invention, the handle is designed as an arc that spans the circular ring and is connected to it on two opposite sides of the circular ring. In a further advantageous embodiment of the invention, the handle is designed to be pivotable via bearings arranged in the connecting area between the circular ring and the handle.

[0027] In an advantageous embodiment of the invention according to claim 12, the circular ring has a width of between one and seven centimeters. This choice of dimensions ensures the required stability of the circular ring while simultaneously providing sufficient surface area to connect the handle to the circular ring.

[0028] In an advantageous embodiment of the invention according to claim 13, the circular ring has a surface with circumferential indentations. This ensures that the circular ring cannot easily slip when placed on the edge of a cooking or frying vessel, since the circumferential indentations or depressions partially enclose the edge of the cooking or frying vessel.

[0029] In an advantageous embodiment of the invention according to claim 14, the diameter of the circular ring is larger than the diameter of the disc. This is necessary so that the disc of the lid can be inserted into the cooking or frying vessel and the circular ring rests on the edge of the cooking or frying vessel.

[0030] According to claim 15, a cooking or frying vessel with a lid is described, which incorporates at least one feature of the preceding claims 1 to 14, and the diameter of the cooking or frying vessel is smaller than the diameter of the circular ring of the lid, and the diameter of the disc is smaller than the diameter of the cooking or frying vessel. Further advantages, features, and design options will become apparent from the following description of the figures of non-limiting embodiments. Brief description of the drawings

[0031] In the drawings shows: Fig. 1 a perspective view of a lid according to the invention; Fig. 2 shows a further perspective view of a lid according to the invention; Fig. 3 a side view of a lid according to the invention; Fig. 4 shows a further side view of a cover according to the invention; Fig. 5 is a perspective view of a lid according to the invention placed on a pot; and Fig. 6 is a further perspective view of a lid according to the invention placed on a pot;

[0032] Elements provided with the same reference numerals in the drawings essentially correspond to one another unless otherwise stated. Furthermore, components that are not essential to understanding the technical teaching disclosed herein are omitted. Reference numerals will not be repeated for all elements already introduced and illustrated, provided that the elements themselves and their function have already been described or are known to a person skilled in the art. Detailed description of implementation examples

[0033] In Fig. 1 shows a perspective view of a lid according to the invention.

[0034] The lid 1 consists of a ring 2, on the top of which a handle 6 is arranged.

[0035] Below the ring 2 is a shape-changing unit, in the design according to Fig. 1 is arranged as a foldable silicone body 4. The foldable silicone body 4 is glued to the underside of the ring 2 and is thus firmly connected to the ring 2.

[0036] The foldable silicone body 4 is in Fig. 1 folded.

[0037] On the side of the foldable silicone body 4 opposite the ring 2, the latter is glued to a disc 3 and thus firmly connected to it.

[0038] On the ring 2, a shape of a handle 7 is formed opposite each other.

[0039] In Fig. Figure 2 shows a further schematic representation of a cover according to the invention.

[0040] The cover 1 consists of a ring 2, which in the design according to Fig. 2 is a circular ring.

[0041] The area between two concentric circles, i.e. between two circles with a common center, is called an annulus.

[0042] A handle 6 is arranged on the top side of the ring 2, extending from one side of the ring 2 to the other side and spanning the ring 2 in an arc. The handle 6 is pivotable about the center axis of the ring 2.

[0043] Below the ring 2 is a shape-changing unit, in the design according to Fig. 1 is arranged as a foldable silicone body 4. The foldable silicone body 4 is glued to the underside of the ring 2 and is thus firmly connected to the ring 2.

[0044] On the side of the foldable silicone body 4 opposite the ring 2, the latter is glued to a disc 3 and thus firmly connected to it.

[0045] A disk is a geometric body in the shape of a cylinder whose radius is many times greater than its thickness.

[0046] The foldable silicone body 4 can be moved by exerting a force on the foldable silicone body 4 from an initial position in which the ring 2 and the disc 3 are relatively close to each other and the foldable silicone body 4 is arranged folded between the ring 2 and the disc 3, into an end position in which the foldable silicone body 4 is completely unfolded and the disc 3 is arranged relatively far apart from the ring 2, as in Fig. 1 shown.

[0047] In the unfolded state, the foldable silicone body 4 forms a lateral surface 5 between the ring 2 and the disc 3, which in the embodiment according to Fig. 1 has a truncated cone-like, hollow shape. The base surface of the truncated cone is formed on the ring 2, and the top surface of the truncated cone is formed on the disc 3.

[0048] The distance between the ring 2 and the disc 3 is almost the same in both the initial and final positions. If you look around the contact surface of the foldable silicone body 4 with the ring 2 and measure the distance to the disc 3 perpendicularly, this distance is always almost the same.

[0049] It is now possible to vary the distance between the ring 2 and the disc 3 between the starting position and the end position, so that various distances between the disc 3 and the ring 2 can be achieved.

[0050] This is advantageous because the cover 1 rests on a - in Fig. 1 pot (not shown), with the ring 2 resting with its underside on the pot rim and the disc 3 protruding into the pot. Depending on the dimensions of the foldable silicone body 4, the lid 1 can be adjusted to different pot heights.

[0051] The lid 1 serves, on the one hand, to reduce the air volume in a pot between the food in the pot and the food being heated, thus allowing only a reduced volume to be heated. On the other hand, it prevents boiling over by retaining foaming liquids in the pot and simultaneously preventing foaming. To this end, the disc 3 should be selected with a smaller diameter than the pot diameter, so that steam and the resulting foaming liquid are forced between the disc 3 and the rim of the pot and flow out there. This prevents foaming.

[0052] By means of the foldable silicone body 4, the penetration depth of the disc 3 can now be adapted to a pot by adjusting the distance between the ring 2 and the disc 3 to the fill level of the pot by means of the foldable silicone body 4.

[0053] The ring 2 is preferably made of plastic and has ring-like indentations or grooves running around its surface. These serve to place the ring on the rim of a pot, with the pot rim resting in the grooves. This allows for a relatively secure and firm hold of the ring 2, and thus of the lid 1, on the pot.

[0054] The pane 2 is made of transparent, heat-resistant plastic or glass. This is advantageous because you can still see into the pot and the food heating up inside, even with the lid 1 on.

[0055] The outer surface 5 is made entirely of silicone and has no perforations. The thickness of the outer surface 5, and thus of the foldable silicone body 4, is preferably selected between one millimeter and seven millimeters and is virtually uniform across the entire outer surface 5.

[0056] The ring 2 preferably has a ring width of one to seven centimeters.

[0057] On the ring 2, a shape of a handle 7 is formed opposite each other.

[0058] The diameter of the ring 2 and the disc 3, and thus the size of the lid 1, is adapted to the pot with which the lid 1 is to be used. If the lid is to be used with a pot with a diameter of 20 centimeters, the diameter of the ring 2 should be between 22 and 25 centimeters, while the diameter of the disc should be no more than 19 centimeters.

[0059] In Fig. Figure 3 shows a side view of a lid according to the invention.

[0060] The lid 1 in turn has a ring 2, on the top of which a handle 6 is arranged.

[0061] A foldable silicone body 4, shown in its folded position, is arranged beneath the ring 2. The foldable silicone body 4 is glued to the underside of the ring 2 and is thus firmly connected to the ring 2.

[0062] On the side of the foldable silicone body 4 opposite the ring 2, the latter is glued to a disc 3 and thus firmly connected to it.

[0063] The lateral surface 5 is shown in folded form.

[0064] On the ring 2, a shape of a handle 7 is formed opposite each other.

[0065] In Fig. Figure 4 shows another side view of a cover according to the invention.

[0066] The lid 1 in turn has a ring 2, on the top of which a handle 6 is arranged.

[0067] A foldable silicone body 4 is arranged below the ring 2, which is shown in its unfolded or unfolded position. The foldable silicone body 4 is glued to the underside of the ring 2 and is thus firmly connected to the ring 2.

[0068] On the side of the foldable silicone body 4 opposite the ring 2, the latter is glued to a disc 3 and thus firmly connected to it.

[0069] On the ring 2, a shape of a handle 7 is formed opposite each other.

[0070] The outer surface 5 of the foldable silicone body 4 is shown in an unfolded form. In the embodiment according to Fig. 4, the outer surface 5 is provided with steps so that the foldable silicone body 4 can be easily folded and the foldable silicone body 4 fits between the ring 2 and the disc 3.

[0071] In Fig. Figure 5 is a perspective view of a lid according to the invention placed on a pot.

[0072] The lid 1 with the ring 2 is shown and the ring 2 rests on the edge of the pot 8.

[0073] On the ring 2, a shape of a handle 7 is formed opposite each other.

[0074] The foldable silicone body 4 is folded, and the disc 3 is arranged on the foldable silicone body 4. The lid 1 with the foldable silicone body 4 and the disc 3 extends a short distance into the pot 8.

[0075] In Fig. Figure 6 shows a further perspective view of a lid according to the invention placed on a pot.

[0076] The lid 1 with the ring 2 is again shown and the ring 2 rests on the edge of the pot 8.

[0077] On the ring 2, a shape of a handle 7 is formed opposite each other.

[0078] The foldable silicone body 4 is unfolded and the disc 3 is arranged on the foldable silicone body 4, which, however, is shown in the illustration according to Fig. 6 extends so far into the pot 8 that it is no longer visible. The lid 1 with the foldable silicone body 4 and the disc 3 now extends almost to the bottom of the pot 8.

[0079] Although the invention has been illustrated and described in detail by the advantageous embodiments, the invention is not limited to the disclosed examples. Other variations may be derived therefrom by those skilled in the art without departing from the scope of the invention. In particular, the invention is not limited to the feature combinations specified below; rather, other combinations and subcombinations that are obvious to those skilled in the art can also be formed from the disclosed features. List of reference symbols 1 lid 2 rings 3 slices 4 foldable silicone body 5 Shell surface 6 handles 7 handle(s) 8 pot QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] WO 2001 / 06902

[0005] DE 20 2016 106 572 U1

[0006] EP 2 324 739 A1

[0007]

Claims

[1] Lid (1) for a cooking or frying vessel, comprising at least a circular ring (2), a disc (3) and a shape-changing unit (4) arranged between the circular ring (2) and the disc (3) and connecting the circular ring (2) and the disc (3) to one another, wherein the shape-changing unit (4) is used to change the distance between the circular ring (2) and the disc (3), at least between a first distance between the circular ring (2) and the disc (3), which represents the starting position between the circular ring (2) and the disc (3), and a second distance between the circular ring (2) and the disc (3), which represents the final deflection position between the circular ring (2) and the disc (3). [2] Lid (1) according to claim 1, characterized bythat both in the initial position and in the final deflection position, the distance between the circular ring (2) and the disc (3) is almost the same perpendicularly between the disc (3) and the circular ring (2). [3] Lid (1) according to claim 1 or 2, characterized by that between the starting position and the final deflection position, further distances can be taken between the disc (3) and the circular ring (2). [4] Lid (1) according to one of the preceding claims, characterized by that the shape-changing unit (4) is made of silicone or plastic. [5] Lid (1) according to one of the preceding claims, characterized bythat the shape-changing unit (4) is connected to the circular ring (2) on the side thereof, circumferentially and approximately centrally on the circular ring (2), and the connecting surface between the circular ring (2) and the shape-changing unit (4) has a circular ring shape and the shape-changing unit (4) is connected to the disc (3) on the side of the disc (3) opposite the circular ring (2), wherein the connection between the shape-changing unit (4) and the disc (3) forms a further circular ring shape. [6] Lid (1) according to claim 5, characterized by that the connection between the shape-changing unit (4) and the circular ring (2), as well as the connection between the shape-changing unit (4) and the disc (3) is an adhesive connection. [7] Lid (1) according to one of the preceding claims, characterized by that the circular ring (2) is made of plastic or silicone and the disc (3) is made of glass or transparent plastic. [8] Lid (1) according to one of the preceding claims, characterized by that the shape-changing unit (4) forms a lateral surface (5) between the circular ring (2) and the disc (3), wherein in the final deflection position the lateral surface (5) is tensioned and in the initial position the lateral surface (5) is folded or collapsed. [9] Lid (1) according to claim 8, characterized by that the outer surface (5) of the shape-changing unit (4) has a material thickness of one to five millimeters. [10] Lid (1) according to claim 8, characterized by that the lateral surface (5) forms a hollow cylindrical shape, the lateral surface (5) is closed and / or the cross section of the lateral surface (5) tapers from the circular ring (2) to the disc (3). [11] Lid (1) according to one of the preceding claims, characterized bythat a handle (6) is arranged on the side of the circular ring (2) facing away from the disc (2). [12] Lid (1) according to one of the preceding claims, characterized by that the circular ring (2) has a circular ring width of between one cm and seven cm. [13] Lid (1) according to one of the preceding claims, characterized by that the circular ring (2) has a surface with circumferential indentations. [14] Lid (1) according to one of the preceding claims, characterized by that the diameter of the circular ring (2) is larger than the diameter of the disc (3). [15] Cooking or frying vessel (8) with a lid (1) having some of the features of the preceding claims 1 to 14, characterized by that the diameter of the cooking or frying vessel (8) is smaller than the diameter of the circular ring (2) of the lid (1) and the diameter of the disc (3) is smaller than the diameter of the cooking or frying vessel (8).

Citation Information

Patent Citations

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