Anti-frost system for a windshield of a motor vehicle

Details Anti-frost system for a windshield of a motor vehicle Anti-frost system for a windshield of a motor vehicle

1988-10-20

1990-02-20

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219522, 219547, 307 101, B60L 102

Patent

active

049028740

ABSTRACT:
A system for preventing frost from accumulating on a window of a motor vehicle has a heating element provided on the window, a temperature switch, which is closed when the temperature of window is lower than 0.degree. C., and a humidity switch, which is closed when the humidity of air outside of the window becomes slightly lower than 100% relative humidity. When both the switches are closed, an electric circuit is closed to connect a battery with the heating element, thereby preventing the formation of frost on the window.

REFERENCES:
patent: 4084126 (1978-04-01), Clements
patent: 4539466 (1985-09-01), Yamamoto
patent: 4725710 (1988-02-01), Ramus et al.
patent: 4730097 (1988-03-01), Campbell et al.

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