Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1993-03-15
1995-09-05
Walberg, Teresa J.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219453, H05B 374
Patent
active
054480361
ABSTRACT:
A cooktop includes an at least partially transparent surface formed of glass or glass ceramic and having burner regions with peripheral and inner portions. Heating elements are disposed beneath the surface in the vicinity of the burner regions. A lighting apparatus visually indicates a temperature of the surface which exceeds a predetermined temperature at which the surface is permitted to be touched. The lighting apparatus has a temperature-dependent switch thermally coupled to the surface. The light devices controlled by the switch. Each of the light devices is disposed in one of the portions of a respective one of the burner regions.
REFERENCES:
patent: 2492100 (1949-12-01), Kitson
patent: 4794233 (1988-12-01), Goessler
patent: 4990750 (1991-02-01), Martel
patent: 5013893 (1991-05-01), Goessler
patent: 5162636 (1992-11-01), Randolph
Detterbeck Heinrich
Husslein Julius
Bosch-Siemens Hausgeraete GmbH
Greenberg Laurence A.
Lerner Herbert L.
Walberg Teresa J.
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