Casingless food production methods, systems, and associated traveling matable mold shells

• US 7,182,683 B2
• Filed: 03/10/2006
• Issued: 02/27/2007
• Est. Priority Date: 08/30/2002
• Status: Expired due to Term

• Current Assignee: ConAgra Foods (Conagra Brands, Inc.)
• Original Assignee: ConAgra Foods (Conagra Brands, Inc.)
• Inventors: Shefet, Sarid M.
• Primary Examiner(s): PRICE JR, RICHARD THOMAS
• Application Number:
  US11/373,459
• Publication Number:
  US 20060172672A1
• Time in Patent Office: 354 Days
• Field of Search: None
• US Class Current: 452/30
• CPC Class Codes: A22C 11/001 Machines for making skinless sausages, e.g. Frankfurters, Wieners

Abstract

Systems, methods, and associated devices for casingless production of food products include: (a) providing a series of shells, the shells having sufficient structural rigidity to define an enclosed cavity space of predetermined substantially constant size and shape; (b) injecting a quantity of flowable food emulsion into the shells in serial order; (c) moving the shells forward along a predetermined travel path with the emulsion in the enclosed cavities; (d) exposing the emulsion in the shells to predetermined processing conditions that alter the emulsion held in the respective shells to a non-flowable edible food product having the molded shape of their respective shell cavities; and then (e) releasing the non-flowable food products from their respective shells.

Claims

1. A food production system, comprising:

a plurality of shells arranged in an endless travel path, the shells configured with at least one emulsion entry port and first and second detachably matable shell portions, the shell portions are configured to mate together to provide an enclosed cavity having a predetermined configuration, and to separate to allow access to the interior of the cavity;

a flowable food emulsion source comprising a flow nozzle that is configured to inject emulsion into the shells;

a transport system that is configured to move the plurality of shells along the endless travel path so that each shell is positioned in cooperating alignment with the flowable food emulsion source at least once during each cycle of travel along the endless travel path; and

a processing region operably associated with the endless travel path so that, in operation, the processing region exposes the emulsion in the attached shells to a predetermined condition as the shells travel along a portion of the endless travel path.

2. A system according to claim 1, wherein the shells are aligned and adjacent ones are closely spaced, so that, between adjacent shells, a forward portion of the adjacent rearward shell abuts the rearward portion of the adjacent forward shell.

3. A system according to claim 1, wherein the shells are held in spaced apart alignment and synchronously travel at a desired rate along the endless path.

4. A system according to claim 1, wherein the shells comprise opposing end portions and opposing side portions, and wherein the at least one emulsion port is disposed on an end portion of the shell.

5. A system according to claim 1, wherein the shells comprise opposing end portions and opposing side portions, and wherein the at least one emulsion port is disposed on a side portion of the shell.

6. A system according to claim 1, wherein the shells and transport system are configured to move the shells substantially vertically along at least a portion of the processing region.

7. A system according to claim 1, wherein the shells and transport system are configured to move the shells substantially horizontally along at least a portion of the processing region.

8. A system according to claim 1, wherein the system defines a food travel path that is a subset of the shell endless travel path and extends between spaced apart first and second locations along the endless travel path, and wherein the first and second shell portions are configured to serially travel so as to mate together at the first location along the endless travel path and travel together for a first portion of the endless travel path, then separate at a second location downstream of the first location, and then travel separately and spaced apart for a second portion of the endless travel path, the second portion of the endless travel path being configured to return the first and second shell portions to the first location, the first location of the food travel path being proximate the food emulsion source.

9. A system according to claim 1, wherein the endless path comprises a first shell portion endless path that is a first loop and a second shell portion endless path that is a second loop.

10. A system according to claim 9, wherein the first loop is disposed above the second loop.

11. A system according to claim 9, wherein the first loop is transversely spaced from the second loop.

12. A system according to claim 9, wherein the first and second loops are substantially vertically oriented so that the shells travel a major portion of the endless path in a vertical orientation both downward and upward.

13. A system according to claim 9, wherein the first and second loops are substantially horizontally oriented so that the shells travel a major portion of the endless path in a horizontal orientation.

14. A system according to claim 1, further comprising:

a second plurality of shells arranged in a second endless travel path, the shells configured with at least one emulsion entry port and first and second detachably matable shell portions, the shell portions are configured to mate together to provide an enclosed cavity having a predetermined configuration, and to separate to allow access to the interior of the cavity;

a second flowable food emulsion source comprising a flow nozzle that is configured to inject a quantity of emulsion into the shells; and

a second transport system that is configured to move the second plurality of shells along the endless travel path so that each shell is positioned in cooperating alignment with the food emulsion source at least once during each cycle of travel along the endless travel path and travels through the processing region so that the emulsion in the attached first and second plurality of shells are exposed to predetermined conditions as the first and second shells travel along their respective endless travel paths.

15. A system according to claim 1, wherein the transport system is configured to move the shells at an adjustable speed.

16. A system according to claim 1, wherein the inner surfaces of the shells comprise deformations formed thereon, the deformations corresponding to surface indicia or texture that is to be formed onto the exterior of the food product during operation.

17. A system according to claim 1, wherein the shell cavities have an elongate shape.

18. A system according to claim 1, wherein when the first and second shell portions mate, the respective shell cavities define an irregular cross-sectional mold configuration that, in operation, molds the food product into a shape having an irregular cross-sectional profile.

19. A system according to claim 1, wherein when the first and second shell portions mate, the respective shell cavities define an irregular side profile mold configuration that, in operation, molds the food product into a shape having an irregular side profile.

20. A system according to claim 1, wherein the inner surfaces of the shells comprise raised or deformed regions corresponding to surface indicia patterns positioned thereon, so that, in operation, the pattern is applied to the outer surface of the food product.

21. A system according to claim 20, wherein the surface indicia pattern is alphanumeric.

22. A system according to claim 20, wherein the surface indicia pattern is in the shape of a logo design.

23. A system according to claim 1, wherein the shell cavities are configured with a non-circular cross-sectional profile.

24. A system according to claim 1, wherein the shell cavities are non-cylindrical.

25. A system according to claim 1, wherein the processing region comprises an oven for heating the emulsion in the shells for predetermined times and temperatures as the emulsion travels enclosed in the shells along a food travel path.

26. A system according to claim 25, wherein the oven is configured to generate sufficient energy and the respective shell residence time therein is such that the internal temperature of the shell enclosed emulsion rises to at least about 150 degrees F.

27. A system according to claim 26, wherein the processing region further comprises a cooler that cools the emulsion in the shells for a predetermined time.

28. A system according to claim 1, wherein the processing region comprises a microwave energy source that is configured to direct microwave energy at the emulsion in the shells for a predetermined time and energy level.

29. A system according to claim 1, wherein the processing region comprises an RF energy source that is configured to direct RF energy at the emulsion in the shells for a predetermined time and energy level.

30. A system according to claim 1, wherein the emulsion source flow nozzle is configured to inject the flowable emulsion into the shell entry port at a flow rate of a least about 1 fps.

31. A system according to claim 1, wherein the flow nozzle is configured to inject the flowable emulsion with sufficient pressure to cause the emulsion to substantially fill the volume of the respective cavity.

32. A system according to claim 1, wherein the flowable emulsion is formulated to produce a shaped burger.

33. A system according to claim 1, wherein the flowable emulsion comprises at least one meat, meat analog, or meat derivative.

34. A system according to claim 33, wherein the emulsion comprises at least one of pork, beef, veal, and/or poultry.

35. A system according to claim 34, wherein the emulsion comprises ground pork, ground beef and ground veal.

36. A system according to claim 1, wherein the emulsion is configured with ingredients to provide hot dogs as the resultant food product.

37. A system according to claim 1, wherein the emulsion is configured with ingredients to provide sausages as the resultant food product.

38. A system according to claim 1, wherein, in operation, downstream of the flowable emulsion source, the mated shells with the enclosed emulsion are transported through the processing region so that the emulsion transforms from a flowable state to a non-flowable food product having the shape of the shell cavity.

39. A system according to claim 38, wherein, in operation, an outer layer of skin having an increased density relative to the underlying food material is formed onto the food product based on processing conditions generated in the processing region.

40. A system according to claim 39, wherein the skin layer is generated by at least one of the residence time of the respective shells in the processing region, the type of processing energy employed in the processing region, the energy level generated in the processing region, and/or the temperature that the outer region of the emulsion is exposed to while in the shell cavity.

41. A system according to claim 1, wherein the emulsion is introduced into the shells after the first and second detachably matable shell portions are mated.

42. A system according to claim 1, wherein the first and second detachably matable shell portions are arranged side-to-side with opposing top and bottom axially extending seams.

43. A system according to claim 1, wherein the shells are aligned, so that, in operation, a forward portion of an adjacent rearward shell moves forward to close off the enclosed cavity of an adjacent forward shell.

44. A system according to claim 1, wherein the shells further comprise an optically viewable window.

45. A mold assembly for the production of casingless foodstuffs, comprising:

a first mold portion having a first inner cavity region;

a second mold portion having a second inner cavity region, the first and second mold portions being detachably matable so that the first and second inner cavity regions align to define a mold cavity with a predetermined three dimensional foodstuff mold shape; and

a transport system operably associated with the first and second mold portions that automatically moves the first and second mold portions in respective endless paths that allows the first and second mold portions to mate and then separate as they travel along their respective endless paths.

46. A mold assembly according to claim 45, wherein at least one of the first and second inner cavity regions comprises a surface indicia pattern that, in operation, transfers a corresponding surface indicia pattern onto the outer layer of a molded foodstuff.

47. A mold assembly according to claim 46, further comprising a flowable food emulsion introduced into the mold cavity after the first and second mold portions are mated.

48. A food production system, comprising:

a plurality of shells arranged in an endless travel path, the shells configured with at least one emulsion entry port and first and second detachably matable shell portions, the shell portions are configured to mate together to provide art enclosed cavity having a predetermined configuration, and to separate to allow access to the interior of the cavity; and

a flowable food emulsion introduced into the shells after the first and second detachably matable shell portions are mated.