Electrically heatable backing means for mirrors

Details Electrically heatable backing means for mirrors Electrically heatable backing means for mirrors

1983-10-20

1985-07-02

Envall, Jr., Roy N.

Electric heating

Heating devices

Combined with diverse-type art device

219505, 219202, H05B 322

Patent

active

045270473

ABSTRACT:
A multiple component electrical heating device for mirrors including at least one plate-shaped electrical heating element having two main faces being connected with two of at least three metal strips which are spaced from one another and extend parallel with each other, in an electrical current-conducting and heat-conducting manner. A first one of the two main faces of the heating element is in electrical current- and heat-conducting contact with at least a first one of the metal strips and is electrically and heat-insulated from the two strips next adjacent the first metal strip. A metal bridge connects with one another, in electrical current- and heat-conducting contact, the two metal strips next adjacent the first metal strip. The other main face of the heating element is in electrical current- and heat-conducting contact with the metal bridge.

REFERENCES:
patent: 3307167 (1967-02-01), Race
patent: 3720807 (1973-03-01), Ting
patent: 3996447 (1976-12-01), Bouffard
patent: 4237366 (1980-12-01), Berg
patent: 4404463 (1983-09-01), Eder

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