Electrically heated zoned window systems

Details Electrically heated zoned window systems Electrically heated zoned window systems

1974-09-06

1976-09-21

Bartis, A.

Electric heating

Heating devices

Combined with diverse-type art device

52171, 219486, 219522, 219543, 219547, 244134D, H05B 102, E06B 712, H05B 310

Patent

active

039820920

ABSTRACT:
An electrically heated window system having at least two independently heatable zones wherein each zone includes its own independent resistance heating element which provides a path for the flow of electric current. A selected region in one of the zones includes a secondary heating component which produces a relatively high temperature in this region of the zone which controls a thermostat in thermal contact therewith. The thermostat initially connects an electrical potential to the one zone and then automatically cycles the electrical potential between the two zones in accordance with the rise and fall of the temperature in said selected region.

REFERENCES:
patent: 1758703 (1930-05-01), Johnson
patent: 2530980 (1950-11-01), Mershon
patent: 2866881 (1958-12-01), McMillen
patent: 3475588 (1969-10-01), McMaster
patent: 3790745 (1974-02-01), Levin

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