Disposable liner for cookware

• US 7,112,764 B2
• Filed: 07/14/2003
• Issued: 09/26/2006
• Est. Priority Date: 02/27/2003
• Status: Active Grant

• Current Assignee: Reynolds Consumer Products Incorporated
• Original Assignee: Kristy Kailynn Garcia
• Inventors: Garcia, Kristy Kailynn
• Primary Examiner(s): PELHAM, JOSEPH MOORE
• Application Number:
  US10/619,314
• Publication Number:
  US 20040169042A1
• Time in Patent Office: 1,170 Days
• Field of Search: None
• US Class Current: 219/429
• CPC Class Codes: A47J 36/022 Cooking- or baking-vessels or supports thereof for using only once eating- or serving-plates for using only once A47G19/02
• CPC Class Codes: A47J 36/16 Inserts

Abstract

A disposable insert or liner conformable to a slow cook cookware (such as, for example, a conventional crock pot or like slow cooking device) having a single interior cooking chamber. The liner is adapted to fit within the interior chamber of a crockpot so as to substantially be in adjacent contact with the crock pot interior chamber walls without interfering with the operation of the cooking device. The liner provides a single compartment which may be made of any material allowing heat conduction between the cookware and the liner. A suitable material may be a tear resistant aluminum foil to withstand typical food preparation in a crock pot. In one embodiment, the present invention includes a flange, notches, indentations or other formations which assist in the insertion and removal of the present invention in the cookware. The present invention advantageoiusly provides for a desirable cooking environment, allows easy removal of food from the crock pot and provides simplified cleaning of the crock pot.

Claims

1. A liner for crock pots having an interior cooking chamber with an inner chamber defined by at least one ceramic wall surface with an upper perimeter lip, the liner comprising an energy conductive material having an exterior surface and an interior surface, the liner being formed to be insertable into, and removable from, the crock pot'"'"'s inner chamber so that the liner'"'"'s exterior surface substantially registers with and is adjacent to the cookware'"'"'s inner chamber while not interfering with the operation of the crock pot, the liner further having a top rim and an integrally formed flange coupled to the top rim and with at least one gap, the at least one gap adapted to allow steam to escape from the crock pot when in operation and not adapted to form fit the upper perimeter lip.

2. The liner of claim 1, the liner'"'"'s top rim formed to lie in a plane substantially symmetrical to a top rim of the crock pot, the liner top rim having a thickness which cooperates with and prevents interference with the operation of the crock pot.

3. The liner of claim 1, the conductive liner being formed from aluminum foil.

4. A liner for slow cooking cookware having an interior cooking chamber with at least one wall surface with an upper perimeter lip, the liner comprising an energy conductive unitary main body having an interior surface and an exterior surface a top rim and an integrally formed flange with at least one gap, the liner being formed so that the liner'"'"'s exterior surface substantially registers with and is adjacent to the cookware'"'"'s interior chamber walls, the conductive sheet formed to prevent interfering with the operation of the cookware as the cookware operates, the gap adapted to allow steam to escape from the interior surface when the slow cookware is in operation and not adapted to form fit the upper perimeter lip.

5. The liner of claim 4, the liner having a depth of substantially the same or approximately less than an interior depth of the slow cooking cookware'"'"'s interior cooking chamber.

6. The liner of claim 4, the liner having a substantially flat or slightly curved bottom surface which substantially registers with a bottom surface of the slow cooking cookware'"'"'s interior cooking chamber.

7. The liner of claim 4, the liner further having at least one side wall defining the main body, the side wall formed to lie in a plane substantially coincident of the slow cookware'"'"'s interior cooking chamber.

8. The liner of claim 5, the liner'"'"'s top rim formed to lie in a plane substantially symmetrical to a top rim of the slow cookware, the top rim having a thickness which cooperates with and prevents interference with the operation of the slow cookware.

9. The liner of claim 5, the flange being formed into a plurality of ribs.

10. The liner of claim 5, the flange being formed into a roll.

11. The liner of claim 4, the conductive liner being formed from aluminum foil.

12. The liner of claim 4, the conductive liner being formed from at least one of aluminum foil, copper foil, bronze foil, tin foil, titanium foil and brass foil.

13. The liner of claim 4, at least some portions of the conductive sheet imprinted with a predefined message.

14. The liner of claim 4, the slow cooking cookware being an oval-shaped crock pot, the liner being adapted for placement within the oval-shaped crock pot so that its exterior walls register with the interior chamber of the crock pot.

15. The liner of claim 4, the slow cooking cookware being an circular-shaped crock pot, the liner being adapted for placement within the circular-shaped crock pot so that its exterior walls register with the interior chamber of the crock pot.

16. A crock pot liner, the liner comprising an energy conductive material having an exterior surface and an interior surface, the liner being formed to be insertable into, and removable from, an inner cooking chamber of the crock pot so that the liner'"'"'s exterior surface substantially registers with and is adjacent to the crock pot'"'"'s inner cooking chamber while not interfering with the operation of the crock pot, the liner having a depth of substantially the same or approximately less than an interior depth of the crock pot'"'"'s interior cooking chamber, and further having a substantially flat or slightly curved bottom surface which substantially registers with a bottom surface of the crock pot'"'"'s interior cooking chamber, the liner further comprising an integrally formed, rollable top rim adapted to sit upon an upper perimeter lip of the crock pot, allow steam to escape from the interior surface when the crock pot is in operation.

17. A crock pot liner, the liner comprising an unitary exterior surface and an interior surface formed of an energy conductive material, the liner being insertable into, and removable from, an inner cooking chamber of the crock pot so that the liner'"'"'s exterior surface substantially registers with and is adjacent to an interior surface of the crock pot, the liner further comprising a rollable top rim, the liner interior surface further adapted to sit upon an upper perimeter lip of the crock pot receive and retain foodstuff.

18. The liner of claim 17, the top rim being adapted to allow steam to escape from the crock pot when in operation.

19. The liner of claim 17, the liner further comprising a substantially flat or slightly curved bottom surface which substantially registers with a bottom surface of the slow cooking cookware'"'"'s interior cooking chamber.

20. The liner of claim 18, the liner further having an interior surface depth of substantially the same or approximately less than an interior depth of the slow cooking cookware'"'"'s interior cooking chamber.

21. A liner for a slow cook device having an interior cooking chamber with an inner chamber defined by at least one wall surface with an upper perimeter lip, the liner comprising a non-aluminum thermally conductive unitary body having an exterior surface and an interior surface, the interior surface defining a single cooking compartment adapted to receive foodstuff, the liner being insertable into, and removable from, the slow cook device'"'"'s inner chamber so that the liner'"'"'s exterior surface is adjacent to the device'"'"'s inner chamber, the liner further having a top rim and an integrally formed flange with at least one gap adapted to sit upon an upper portion of the device to allow steam to escape from the device when in operation and not adapted to form fit the upper perimeter lip.

22. The liner of claim 21, the liner'"'"'s top portion having a thickness which cooperates with and prevents interference with the operation of the crock pot.

23. The liner of claim 21, the liner having an interior surface coated with a non-stick material.

24. The liner of claim 21 the liner having a bottom surface which substantially registers with, and is coincident to, a bottom surface of the slow cooking cookware'"'"'s interior cooking chamber.

25. The liner of claim 21, the liner'"'"'s top portion being rollable.

26. A disposable slow cook unit liner, the slow cook unit having an interior cooking chamber with an inner chamber defined by at least one continuous wall surface with an upper perimeter lip, the liner comprising a non-aluminum body having an exterior surface and an interior surface, the interior surface defining a single cooking compartment, the liner being insertable into, and removable from, the slow cook device'"'"'s inner chamber so that the liner'"'"'s exterior surface substantially registers with and is adjacent to the unit'"'"'s interior cooking chamber, the liner further having a top rim and an integrally formed flange with at least one gap adapted to sit upon an upper perimeter lip of the device and to allow steam to escape from the device when in operation and not adapted to form fit the upper perimether lip device when in operation.

27. The liner of claim 26, the liner'"'"'s top portion having a thickness which cooperates with and prevents interference with the operation of the crock pot.

28. The liner of claim 26, the liner having a depth of substantially the same or approximately less than an interior depth of the slow cooking cookware'"'"'s interior cooking chamber.

29. The liner of claim 26, the liner having a bottom surface which substantially registers with, and is coincident to, a bottom surface of the slow cooking cookware'"'"'s interior cooking chamber.

30. The liner of claim 26, the liner'"'"'s top portion being rollable.

31. The liner of claim 26, the liner'"'"'s interior surface being coated with a non-stick material.