Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1983-12-06
1986-04-01
Paschall, M. H.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219453, 219506, H05B 102
Patent
active
045800340
ABSTRACT:
In the disclosed heater device, a thermostatic control is connected in series with a heating resistance across two power junctions. An incandescent lamp and a glow lamp are connected in series between the junctions while the common point between the lamps is connected to the common point between the switch and the resistance. When the thermostatic switch opens in response to heat it turns on the glow lamp; when it closes it turns on the incandescent lamp.
REFERENCES:
patent: 1314671 (1919-09-01), Koehler
patent: 2427444 (1947-09-01), Colombo
patent: 3610878 (1971-10-01), Thomas
patent: 4029940 (1977-06-01), Eaton
patent: 4267432 (1981-05-01), Kiepe
Paschall M. H.
Walberg Teresa J.
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