Heat exchange – With retainer for removable article – Including liquid heat exchange medium
Patent
1975-10-09
1976-12-28
Cohan, Alan
Heat exchange
With retainer for removable article
Including liquid heat exchange medium
165169, F28D 2100
Patent
active
039996018
ABSTRACT:
A food service tray which allows selective heating and/or cooling of meal components carried thereby. A base member of a thermally insulating material has a plurality of compartments divided into serially connected flow chambers having inlet and outlet openings. Food receptacles made of a thermally conductive material carry the meal components and are inserted into the compartments. Thermally insulating lids then cover the food receptacles. A refrigerated fluid under pressure may be passed through all or part of the flow chambers to thereby maintain the contents of the food receptacles therein in a chilled condition. A heated fluid under pressure can then be passed through selected flow chambers to thereby rethermalize or heat the contents of the food receptacles in the heated flow chambers to a proper serving temperature. Simultaneously with the heating of some food receptacles, the flow of refrigerated fluid can be continued to other flow chambers to maintain other meal components in a chilled condition for serving.
REFERENCES:
patent: 3780794 (1973-12-01), Staub
Cohan Alan
Holler E. J.
McLary Steve M.
Owens--Illinois, Inc.
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