Food service tray

Details Food service tray Food service tray

1974-06-19

1976-04-27

Davis, Jr., Albert W.

Heat exchange

Regenerator

Checker brick structure

165 58, 165 61, 165100, F28D 2100

Patent

active

039527948

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: 3135316 (1964-06-01), Foster et al.
patent: 3507322 (1970-04-01), Tetrick et al.
patent: 3780794 (1973-12-01), Staub

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