Portable electric heating device for thawing motor vehicle door

Details Portable electric heating device for thawing motor vehicle door Portable electric heating device for thawing motor vehicle door

1979-07-13

1981-12-01

Bartis, A.

Electric heating

Heating devices

Combined with diverse-type art device

70431, 219202, 219221, 219237, 219240, 219533, E05B 1700, H05B 340, F21V 3300

Patent

active

043038255

ABSTRACT:
A compact portable device energizable from a motor vehicle battery for thawing frozen motor vehicle door locks includes an electrically heated thawing stick sized for insertion into the keyhole of a frozen lock. The stick comprises a hollow metal body enclosing a resistance wire. One end of the wire is connected to the stip of the metal body and the other end is connected to an elongated cable terminating in a plug insertable into an electrical socket on the vehicle connected to the vehicle battery. The thawing stick is secured to a hollow protective case modeled in the form of a flat key end and provided with a key ring. The case has an open narrow side through which the cable can be inserted for storage within the case during non-use periods and the stick is pivoted for movement from a non-use position covering the open side of the case to an extended use position.

REFERENCES:
patent: 2146854 (1939-02-01), Schleif
patent: 2371534 (1945-03-01), McGrath
patent: 2898571 (1959-08-01), Moule et al.
patent: 3022408 (1962-02-01), Wagner
patent: 3379854 (1968-04-01), Jovis
patent: 3450859 (1969-06-01), Brucker
patent: 3536890 (1970-10-01), Hombrecher
patent: 3973422 (1976-08-01), Cervera
patent: 4075458 (1978-02-01), Moyer

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