Cooking heating apparatus

Details Cooking heating apparatus Cooking heating apparatus

1980-05-19

1983-01-04

Reynolds, B. A.

Electric heating

Metal heating

Of cylinders

219 1055E, 219 1055F, 99325, 350584, 374161, H05B 668

Patent

active

043673880

ABSTRACT:
A cooking heating apparatus is provided in which an object to be heated is subject to char cooking, the apparatus having a detector circuit for detecting the charred condition by detecting the intensity of reflected visible light from the surface of the object and a heating device for burning and removing foreign materials created upon heating the object and deposited on a transparent glass which is provided for preventing the foreign materials from reaching a light source which provides the visible light and a photosensor which detects the reflected visible light. The apparatus may further comprise means for forcing off the foreign materials burnt by the burning and removing elements by means of a forced air flow and/or a device for scattering the foreign materials given off from the object upon heating to prevent the foreign materials from reaching the transparent glass.

REFERENCES:
patent: 3686473 (1972-08-01), Shirn et al.
patent: 3783220 (1974-01-01), Tanizaki
patent: 3790748 (1974-02-01), Van Laethem et al.
patent: 4015476 (1977-04-01), Roche et al.
patent: 4105886 (1978-08-01), Baron et al.
patent: 4118985 (1978-10-01), Compton
patent: 4191876 (1980-03-01), Ohkubo et al.
patent: 4259866 (1981-04-01), Sleighter

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