Automobile door lock warmer

Details Automobile door lock warmer Automobile door lock warmer

1987-08-25

1989-04-18

Bartis, Anthony

Electric heating

Heating devices

Combined with diverse-type art device

70431, 219201, 219370, 219373, E05B 1700, H05B 300, F24H 304

Patent

active

048229768

ABSTRACT:
An automobile door lock warming device has a housing which surrounds the door lock cylinder on a conventional automobile door lock. A heating element is contained in the housing and also an electrical fan. A switch is mounted on the exterior of the automobile. In use, the user activates the switch which turns on the heating element and the fan, thus blowing warm air through the housing and onto the door lock cylinder. In a second embodiment, the housing includes a helical rib which swirls the warmed air around the door lock cylinder and exhausts the air through a plurality of ports which are spaced circumferentially around the keyhole. A pivotable cover for the keyhole and exhaust ports is provided.

REFERENCES:
patent: 2538872 (1951-01-01), Jones
patent: 2774855 (1956-12-01), Simmons
patent: 3192359 (1965-07-01), Swindall

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