Crack detecting window panel and method of producing same

Details Crack detecting window panel and method of producing same Crack detecting window panel and method of producing same

1987-11-09

1989-02-28

Goldberg, E. A.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219203, H05B 306

Patent

active

048087998

ABSTRACT:
A heated window assembly for a vehicle includes a pair of spaced apart bus bars connected by a conductive film. A sense line is connected to one of the bus bars to monitor and compare the voltage applied to the bus bar. A control circuit connected to the sense line detects a difference in voltage in the bus bar as compared to a reference voltage and disconnects the bus bars from the vehicle power supply.

REFERENCES:
patent: 3760157 (1973-09-01), Newman et al.
patent: 3876862 (1975-04-01), Newman et al.
patent: 3892947 (1975-07-01), Strengholt
patent: 3941975 (1976-03-01), Newman et al.
patent: 3974359 (1976-08-01), Orcutt et al.
patent: 4725710 (1988-02-01), Ramus et al.

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