Automatic defroster system having blower motor and heating eleme

Details Automatic defroster system having blower motor and heating eleme Automatic defroster system having blower motor and heating eleme

1990-12-14

1992-06-09

Reynolds, Bruce A.

Electric heating

Heating devices

Combined with diverse-type art device

392379, B60H 100, F24H 920, H05B 102, B60R 1602

Patent

active

051209322

ABSTRACT:
An electric heating element for the elimination of condensation, frost or the like on windows of motor vehicles, preferably a rear window of a convertible top, is interconnected with an electric blower motor which includes a relay circuit. For safely operating the heating element, the heating element will only be operative when the blower motor is running. A first relay is used for the control of the blower motor and a second relay for the control of the heating element. The second relay, via a line of a control circuit, is connected to a connecting terminal of the blower motor.

REFERENCES:
patent: 2552028 (1951-05-01), Blair
patent: 2689372 (1954-09-01), Goulding, Jr. et al.
patent: 3534197 (1970-10-01), Burnett
patent: 3659155 (1972-04-01), Chambers
patent: 3912906 (1975-10-01), McIntosh et al.

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