Key for defrosting locks

Details Key for defrosting locks Key for defrosting locks

1977-01-07

1978-10-31

Truhe, J. V.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

70456R, 362203, 219201, 219267, H05B 306

Patent

active

041236483

ABSTRACT:
A device for heating keys comprised of a plug which fits the socket of a cigarette lighter having means for heating a key. The device is comprised of a heating element surrounding a slot in the plug into which a key may be inserted for heating. The plug, when pushed into the cigarette lighter receptacle, activates the heating element which in turn heats the key. The device can be constructed as a slot in an existing cigarette lighter for use in conjunction with it, or may be a separate adapter plug. The device is activated by pushing the key into the slot in the plug or cigarette lighter and engaging the contacts by pushing the plug inward.

REFERENCES:
patent: 2530513 (1950-11-01), Drugan
patent: 2558441 (1951-06-01), Jones
patent: 2774855 (1956-12-01), Simmons
patent: 2965741 (1960-12-01), Blazina
patent: 3022408 (1962-02-01), Wagner
patent: 3379854 (1968-04-01), Jovis
patent: 3450859 (1969-06-01), Brucker
patent: 3703634 (1972-11-01), Bucky
patent: 3723704 (1973-03-01), Silverthorne
patent: 3973422 (1976-08-01), Cervera

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