Continuous duty direct current heated windshield with ambient te

Details Continuous duty direct current heated windshield with ambient te Continuous duty direct current heated windshield with ambient te

1992-12-07

2000-12-19

Jeffery, John A.

Electric heating

Heating devices

Combined with diverse-type art device

219510, 521712, H05B 300

Patent

active

061630136

ABSTRACT:
An electric heating grid extends from the middle of one side of the windshield, down that side to the bottom of the windshield, and from there across the bottom to the opposite side. The grid is operated by a control circuit having an on-off switch that is accessible to the vehicle operator. The control circuit includes a switch for sensing ambient outdoor temperature so as to allow the grid to be operated only when the outdoor temperature is below a threshold that distinguishes wintertime from non-wintertime conditions.

REFERENCES:
patent: 1659487 (1928-02-01), Hudson
patent: 1741968 (1929-12-01), Beckmann
patent: 3524044 (1970-08-01), Liardi
patent: 3982092 (1976-09-01), Marriott
patent: 4277672 (1981-07-01), Jones
patent: 4378484 (1983-03-01), Kunert
patent: 4506137 (1985-03-01), Meister
patent: 4603451 (1986-08-01), VanSickle
patent: 4902874 (1990-02-01), Tachimori et al.
patent: 5057666 (1991-10-01), Takada

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