Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1979-08-29
1981-08-25
Davis, Albert W.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 61, 165DIG26, 312236, 186 45, 219386, 219521, 219387, 219403, 219447, 219518, F25B 2900
Patent
active
042853915
ABSTRACT:
A food service device including a food-carrying cart which can be stored inside a refrigerator is provided with elements for heating the food before meals are served. The electrical system is comprised of switching devices which actuate the heating elements depending upon the presence and orientation of food trays on the shelf of the cart; a self-aligning coupling which can supply electrical power to the cart's heaters when the cart is placed in the refrigerator; and a timer which controls the duration of time the electrical heaters are energized to warm the food prior to service, and provide a keep-warm timing sequence for holding the heated food within a refrigerated environment.
REFERENCES:
patent: 3608627 (1971-09-01), Shevlin
patent: 3908749 (1975-09-01), Williams
patent: 3965969 (1976-06-01), Williamson
patent: 4019022 (1977-04-01), Seider et al.
patent: 4041277 (1977-08-01), Shumrak et al.
patent: 4068115 (1978-01-01), Mack et al.
patent: 4093041 (1978-06-01), Davis et al.
patent: 4103736 (1978-08-01), Colato et al.
patent: 4110587 (1978-08-01), Souder et al.
patent: 4156456 (1979-05-01), Muller
patent: 4203486 (1980-05-01), Rubbright et al.
Aladdin Industries Incorporated
Davis Albert W.
Focarino Margaret A.
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