Electric radiation heater assemblies

Details Electric radiation heater assemblies Electric radiation heater assemblies

1987-01-27

1988-08-16

Goldberg, E. A.

Electric heating

Heating devices

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

219452, 219505, 219481, 219492, H05B 368

Patent

active

047646632

ABSTRACT:
An electric radiation heater assembly for a glass ceramic top cooker includes at least one heating element having a substantial positive temperature coefficient of resistance, such as an infra-red lamp. A resistive assembly is electrically connected in series with the at least one heating element for suppressing surges of electric current due to the low initial resistance of the heating element. Switch means is operable a time interval of at least thirty milliseconds and preferably about 1/2 second after a supply of electric power to the heater is energized so as to reduce the combined electrical resistance of the heating element and the resistive assembly.

REFERENCES:
patent: 3017564 (1962-01-01), Barney
patent: 3112435 (1963-11-01), Barney
patent: 4236198 (1980-11-01), Ohsawa
patent: 4555741 (1985-11-01), Masaki
patent: 4628431 (1986-12-01), Kayser
Driscoll, C. D., "Surge Current Limiter . . . ", IBM Tech. Disc. Bull., vol. 24, No. 3, Aug. 1981, pp. 1439-1440.

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