Anti-freezing system, anti-froster for windshield and rear windo

Details Anti-freezing system, anti-froster for windshield and rear windo Anti-freezing system, anti-froster for windshield and rear windo

1999-03-30

2000-11-21

Paschall, Mark

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219507, 219518, 219494, 340583, 340580, H05B 102

Patent

active

061506397

ABSTRACT:
An automatic, dynamic window anti freezing system for the windshield and the rear window of a motor vehicles parked in cold weather, connected to a battery, comprises a temperature range control-switch unit, an optic frost-monitor, and a sweeping time (frequency)- control to drive a wiper system to work for preventing frost accumulating on the window glass. The temperature unit sets up a certain working range to turn on the system, covering the real freezing stage of the windows. The sweeping time control sets up predetermined sweeping timely manner for the wipers to sweep. The monitor emits light signals to monitor the frost accumulating on the window glass, and actuates the sweeping control to drive wipers to sweep it off when detecting it. The energy consumption is generally exceptional low due to that working is effectively controlled and easily done. Thus a related window is substantially able to avoid freezing on.
The present invention has a subsystem consisted of the monitor and the sweeping control for automatically wiping fog and rain during driving. It is realized by using an appropriate switch to separate it from the temperature unit.

REFERENCES:
patent: 3989633 (1976-11-01), Frisque
patent: 4065848 (1978-01-01), Dery
patent: 4549471 (1985-10-01), Kochy et al.
patent: 4712269 (1987-12-01), Worthen
patent: 4902874 (1990-02-01), Tachimuri et al.
patent: 5010289 (1991-04-01), Takada
patent: 5787228 (1998-07-01), Fiely et al.

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