Self-cleaning glass-ceramic surface cooking unit

Details Self-cleaning glass-ceramic surface cooking unit Self-cleaning glass-ceramic surface cooking unit

1978-11-30

1981-02-17

Kozma, Thomas J.

Electric heating

Heating devices

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

219464, 219451, 219398, 219413, H05B 306

Patent

active

042517168

ABSTRACT:
An automatic cleaning arrangement for a glass-ceramic cooking surface which is adapted to remove baked-on soils from the surface regions surrounding the individual cooking areas by the process of oxidation. Additional thin film heaters are located under the regions to be cleaned and are activated by a timer controlled power supply circuit. An interlock switch in the cook heater line disables the cook heater when the cleaning operation is in progress. The power supply circuit for the thin film heaters is arranged to disable automatically the cooking heaters when a break occurs in the glass-ceramic surface in the region of the thin film heaters.

REFERENCES:
patent: 2007876 (1935-07-01), Sauvage
patent: 2224945 (1940-12-01), Ames
patent: 2413478 (1946-12-01), Wiegand
patent: 2681973 (1954-06-01), Macoicz
patent: 2823290 (1958-02-01), Warner
patent: 2918558 (1959-12-01), Evans
patent: 3121158 (1964-02-01), Hurko
patent: 3176099 (1965-03-01), Bergsma
patent: 3413445 (1968-11-01), Dills
patent: 3636309 (1972-01-01), Deaton et al.
patent: 3941975 (1976-03-01), Newman
patent: 4032750 (1977-06-01), Hurko
patent: 4127858 (1978-11-01), Gardner et al.

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