Electric thermal convection cooktop

Details Electric thermal convection cooktop Electric thermal convection cooktop

1994-06-06

1995-06-13

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219400, 219460, H05B 368

Patent

active

054245117

ABSTRACT:
A convection cooking apparatus includes a cooking surface and a hot air generator fluidly coupled to one or more nozzles located at the cooking surface. The hot air generator is characterized as a ported chamber housing at one least electrically resistive heat source therein and fluidly coupled to a blower and at least one transfer tube. The at least one transfer tube transfers heated air from the hot air generator to the at least one nozzle. A valve is disposed intermediate the hot air generator and the nozzle to regulate the air flow there between. To maintain a constant heated air temperature, a temperature regulating means is coupled with the resistive element to control the power delivered to it. In a preferred embodiment, an external shroud encompasses the hot air generator to provide a heat shield and to direct air entering the generator around the same, thus permitting recovery of waste heat produced by the generator. An additional embodiment incorporates an oven portion which receives heated air from the hot air generator for baking or broiling items placed therein.

REFERENCES:
patent: 2111148 (1938-03-01), Judelson
patent: 2688808 (1954-09-01), Ispen
patent: 3167638 (1965-01-01), Hornaday
patent: 3167639 (1965-01-01), Gaugler
patent: 3632980 (1972-01-01), Harnaday
patent: 4499818 (1985-02-01), Strong
patent: 4812621 (1989-03-01), Brotherton et al.

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