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

1990-01-19

1991-04-23

Hickey, R. J.

Electricity: single generator systems

Combined control of generating means and load circuit

Including load circuit-making and breaking

15250C, 1525005, 219203, B60L 102, B60S 154

Patent

active

050102893

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 the window is lower than 0.degree. C., and a humidity switch, which is closed when the humidity of air outside of the window becomes about 100%. When both the switches are closed, an electric circuit is closed to connect a battery with the heating element. At the same time, a wiper of the vehicle is operated for a short time to wipe out dew on the window.

REFERENCES:
patent: 4084126 (1978-04-01), Clements
patent: 4317073 (1982-02-01), Blaszkowski
patent: 4693172 (1987-09-01), Harvey
patent: 4821363 (1989-04-01), Delluc

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