Apparatus and process for chilling food products

{
  "publication_number": "US5363658A",
  "country": "US",
  "kind": "A",
  "title": "Apparatus and process for chilling food products",
  "abstract": "Apparatus and method for chilling a food product which includes a food distribution device having a pair of circular members including at least one spaced-apart partition defining a food receiving area; the circular members rotating to cause food delivered to the food product receiving area to fall into a food storage compartment in a uniform manner; and a cryogen releasing device connected to one of the circular members which uniformly distributes a cryogenic substance to the food product within the food storage compartment.",
  "claims": [
    "1. Apparatus for chilling a food product comprising: (a) a food storage compartment for receiving the food product while in motion from a food distribution means and for storing the food product at rest; (b) food distribution means operatively engaged to the top of the food storage compartment for receiving the food product from a source and for uniformly distributing the food product within the food storage compartment; and (c) means for cooling the food product while the food product is contained within the food storage compartment.",
    "2. The apparatus of claim 1 wherein the means for cooling the food product comprises a cryogen releasing means operatively engaged to the underside of the food distribution means for uniformly releasing a cryogenic substance onto the food product as the food product is uniformly distributed within the food storage compartment to thereby cool the food product.",
    "3. Apparatus for chilling a food product comprising: (a) a food storage compartment for receiving the food product from a food distribution means; (b) food distribution means operatively engaged to the top of the food storage compartment for receiving the food product from a source and for uniformly distributing the food product within the food storage compartment said food distribution means comprising; (i) a first circular member having an upper and lower surface and an opening therein sufficient for the food product to pass therethrough, (ii) means for rotating the first circular member, (iii) a second circular member positioned above the first circular member comprising at least one partition and together with the upper surface of the first circular member forming at least one food receiving area on the upper surface of the first circular member, (iv) means for rotating the second circular member in a non-congruent manner with respect to the first circular member, whereby the food product which is placed on the upper surface of the first circular member is caused to fall through the opening in the first circular member into the food storage compartment when one of said partitions contacts the food product and urges said food product into said opening; and (c) means for cooling the food product.",
    "4. The apparatus of claim 3 wherein the means for rotating the first circular member rotates the first circular member at a speed different than that of the second circular member.",
    "5. The apparatus of claim 3 wherein the means for rotating the first circular member rotates the first circular member in a different direction than the second circular member.",
    "6. The apparatus of claim 3 wherein the cryogen releasing means comprises a conduit affixed to a lower surface of the first circular member and connected to a source of a cryogenic substance, and a releasing means operatively connected to the conduit for releasing the cryogenic substance as the first circular member is rotated.",
    "7. The apparatus of claim 6 wherein the releasing means comprises a solid flake generator.",
    "8. The apparatus of claim 6 wherein the releasing means comprises a plurality of openings in the conduit of sufficient size to enable a liquid cryogen to pass therethrough.",
    "9. The apparatus of claim 6 further comprising means for intermittently releasing the cryogenic substance into the vessel.",
    "10. The apparatus of claim 6 further comprising means for varying the rate at which the cryogenic substance is released into the vessel.",
    "11. The apparatus of claim 3 further comprising means for terminating or reversing the rotation of the second circular member when the food product becomes wedged between a partition of the second circular member and the opening within the first circular member.",
    "12. The apparatus of claim 3 wherein the second circular member comprises a plurality of spaced-apart partitions forming a plurality of food receiving areas.",
    "13. A method of chilling a food product comprising: (a) delivering a food product to an upper surface of a first circular member having an opening therein, said opening adapted to receive the food product and deliver the food product to a food storage vessel; (b) rotating the first circular member; (c) rotating a second circular member in a non-congruent manner with respect to said first circular member; said second circular member, comprising at least one partition, together with the first circular member forming at least one food receiving area on the surface of the first circular member; said second circular member being rotated in a manner so that the partitions contact the food product in said food receiving portions and urge the food product into said opening; and (d) adding a coolant to the food storage vessel.",
    "14. The method of claim 13 wherein the step of adding a coolant to the food storage compartment comprises releasing a cryogenic substance from the first circular member into the food storage compartment as the first circular member is rotated.",
    "15. The method of claim 14 wherein the cryogenic substance is released in the form of solid flakes.",
    "16. The method of claim 14 wherein the cryogenic substance is released in the form of a liquid.",
    "17. The method of claim 13 comprising rotating the first circular member at a different speed than the second circular member.",
    "18. The method of claim 13 comprising rotating the first circular member in a different direction than the second circular member.",
    "19. The method of claim 14 comprising releasing the cryogenic substance at a controlled rate into the food storage compartment.",
    "20. The method of claim 19 comprising intermittently releasing the cryogenic substance into the food storage compartment.",
    "21. The method of claim 13 wherein the second circular member comprises a plurality of partitions forming a plurality of food receiving areas."
  ],
  "description_excerpt": "The present invention is generally directed to a device for chilling a food product in which the food product is uniformly distributed within a food receiving vessel while simultaneously being uniformly treated with a cryogenic substance to effect cooling.\n\nCommercial procedures for treating freshly killed poultry or meat generally require that the temperature of the fresh killed product be reduced in accordance with standards established by the United States Department of Agriculture (USDA). Conventionally, the fresh killed product is treated with brine to lower the temperature of the food product to about 45° F. This procedure reduces water loss in the product, prevents the growth of bacteria and extends the shelf life of the food product.\n\nThe brine treated product is then cut and/or ground as desired prior to packaging. The cutting/grinding step generates heat thereby increasing the temperature of the food product. Prior to packaging the food product, however, it is necessary to lower the temperature of the food product in the range of from about 30° to 40° F.\n\nConventional methods of chilling the food product after it has been cut/ground and treated with brine involve manual operations. Specifically, the food product is placed in a large, often times rectangular vessel. Dry ice in the form of pellets is shoveled into the vessel to lower the temperature of the food product to meet USDA requirements.\n\nSuch manual systems, however, are inefficient and inconsistent.",
  "cpc": [
    "F25D 3/10",
    "A23B 2/88",
    "A23B 4/09"
  ],
  "ipc": [
    "A23B 4/09",
    "A23L 3/375",
    "F25D 3/10"
  ],
  "assignees": [
    "BOC Group Inc"
  ],
  "inventors": [
    "John Appolonia",
    "Steve McCormick",
    "Robert Boddaert"
  ],
  "filing_date": "1993-07-09",
  "publication_date": "1994-11-15",
  "grant_date": "1994-11-15",
  "priority_date": "1993-07-09",
  "application_number": "US-9034793-A",
  "family_id": "22222399",
  "cited_by_count": 8,
  "citations": [
    "US3368366A",
    "US3787699A",
    "US4305261A",
    "US4539824A",
    "US4788907A",
    "US5040374A"
  ]
}