Radiant heater

Details Radiant heater Radiant heater

1987-09-18

1988-12-27

Goldberg, E. A.

Electric heating

Heating devices

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

219453, 219460, 219506, H05B 374

Patent

active

047942339

ABSTRACT:
A radiant heater has a shallow shell-like support for carrying heating resistors and a glass ceramic top plate. A connection and hot warning indicating device is arranged in the space between the top plate and the support. The light source is preferably a low voltage tungsten halogen lamp which projects, at most, slightly beyond the front side of the support. Despite a very compact construction, the radiant heater is not subject to dazzle effects even over a large area, and a readily visible indicating illumination is obtained. The light source can be operated at different brightness levels, for example one brightness level indicating the switched-on condition of the heating resistor and the other brightness level indicating the hot-to-touch condition of the top plate, notwithstanding the switched-on or switched-off condition of the heating resistor.

REFERENCES:
patent: 2165003 (1939-07-01), Peters
patent: 2346237 (1944-04-01), Rutenber
patent: 2492100 (1949-12-01), Kitson
patent: 2659069 (1953-11-01), Kinsella
patent: 2735924 (1956-02-01), Shaw
patent: 2870316 (1959-01-01), Ferguson
patent: 3067315 (1962-12-01), Hurko
patent: 3375346 (1968-03-01), Gaugler

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