Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1986-11-26
1988-03-08
Goldberg, E. A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219401, 219386, 219413, H05B 102
Patent
active
047301007
ABSTRACT:
A food cooking and heating cabinet including a food holding oven having at least one door for access to the interior thereof, an air heating chamber having an inlet and an outlet, an air heating element within the air heating chamber, an intake passageway to conduct heated air from the outlet of the air heating chamber to the food holding oven, an exhaust passageway to conduct air from the food holding oven to the inlet of the air heating chamber, an air temperature sensor within the air heating chamber, a closed air convection system consisting of a variable speed blower in the air heating chamber for circulating air past the heating element, through the intake passageway, through the food holding oven, through the exhaust passageway and back to the air heating chamber, a control for selecting a desired temperature to be maintained in the food holding oven, and a circuit for comparing the sensed temperature to the selected temperature causing the air heating element to operate and the speed of the blower to increase when a diffference in temperature exists and causing the air heating element to cease and the speed of the blower to decrease when the selected temperature is reached.
REFERENCES:
patent: Re31765 (1984-12-01), Guibert
patent: 2248867 (1941-07-01), Hallman
patent: 2408331 (1946-09-01), Mills
patent: 2784662 (1957-03-01), Grosz
patent: 3032028 (1962-05-01), Pearce
patent: 3467815 (1969-09-01), Robinson
patent: 4030476 (1977-06-01), Hock
patent: 4308853 (1982-01-01), Thirade
patent: 4338911 (1982-07-01), Smith
patent: 4512327 (1985-04-01), Stiegler
Dorman William S.
Goldberg E. A.
Jero Manufacturing, Inc.
Walberg Teresa J.
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