Refrigeration – Processes – Treating an article
Patent
1997-07-23
1998-09-22
Capossela, Ronald C.
Refrigeration
Processes
Treating an article
62374, 62380, F25D 1306
Patent
active
058097872
ABSTRACT:
A method of cooling food product in a flexible synthetic pouch to a temperature below 50.degree. Fahrenheit using a coolant solution having a freezing point less than 32.degree. Fahrenheit discharged from a plurality of orifices adjacent to pouched food product transported by a conveyor. The coolant preferably is a solution of brine or ethylene glycol cooled to a temperature less than 32.degree. Fahrenheit and the pouch is constructed of a laminate sidewall having at least one layer of the laminate constructed of a material that becomes increasingly brittle as its temperature approaches and drops below 50.degree. Fahrenheit making the pouch susceptible to fracture, pinholing or cracking if physically agitated, massaged or manipulated during cooling. In practicing the method of the invention, the brine or ethylene glycol coolant solution is cooled to a temperature below 32.degree. Fahrenheit, typically between 32.degree. Fahrenheit and minus 10.degree. Fahrenheit, and discharged through the orifices onto pouches traveling on the conveyor. Coolant contacting the pouches cools the food product in the pouches to a temperature less than 50.degree. Fahrenheit without requiring any physical agitation, massage or manipulation to cool the pouches to a temperature less than 50.degree. Fahrenheit thereby preventing the integrity of the airtight seal and sidewall of the pouches from being compromised.
REFERENCES:
patent: 3283523 (1966-11-01), Long
patent: 3395549 (1968-08-01), Grimes
patent: 5377492 (1995-01-01), Robertson et al.
"Heating, Ventilating, and Air-Conditioning Systems and Equipment," 1992 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Handbook, Inch-Pound Edition.
"Refrigeration," 1994 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. Handbook, I-P Edition.
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