Vehicle window heating apparatus

Details Vehicle window heating apparatus Vehicle window heating apparatus

1989-02-22

1990-10-30

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219522, 307 101, B60L 100

Patent

active

049670565

ABSTRACT:
A vehicle window heating apparatus includes a heating element provided for heating a vehicle window when connected to a generator. The generator has a field winding fed from a voltage regulator connected to a vehicle battery. The apparatus also includes a circuit for connecting the generator selectively to one of the voltage regulator and the heating element. The circuit is responsive to a signal indicative of a demand for a window de-icing operation for connecting the generator to the heating element while disconnecting it from the voltage regulator and the vehicle battery upon the occurrence of three conditions of (a) the vehicle transmission being in neutral or park, (b) the engine being idling, and (c) the vehicle being at rest.

REFERENCES:
patent: 4730097 (1988-03-01), Campbell et al.

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