Heating apparatus with char detecting and heating controller

Details Heating apparatus with char detecting and heating controller Heating apparatus with char detecting and heating controller

1979-12-03

1982-12-14

Paschall, M. H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219 1055B, 219 1055F, 219502, 219506, 307117, 374161, H05B 102

Patent

active

043639577

ABSTRACT:
A heating apparatus capable of heating an article to be heated accommodated within a heating chamber to a degree that the article becomes charred. Illumination intensity of reflected light from the surface of the article illuminated with visible light rays from a light source is detected by an optical sensor, to thereby identify the degree of charring produced in the article, wherein heating operation is controlled on the basis of the identified degree of charring.

REFERENCES:
patent: 3887781 (1975-06-01), Peters, Jr.
patent: 4180722 (1979-12-01), Clewans
patent: 4197442 (1980-04-01), Carlsson et al.
patent: 4213023 (1980-07-01), Satoh et al.
patent: 4238672 (1980-12-01), Siess
patent: 4245148 (1981-01-01), Gisske et al.
patent: 4262183 (1981-04-01), Smith et al.

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