Electric heating – Heating devices – Combined with diverse-type art device
Patent
1989-11-15
1993-06-15
Bartis, Anthony
Electric heating
Heating devices
Combined with diverse-type art device
70431, 219202, 219227, 219238, 219241, 320 2, 439131, E05B 1700, H02J 700, H05B 300
Patent
active
052201520
ABSTRACT:
An electrical lock thawing device includes a housing formed from a water-proof rubber material and enclosing a rechargeable battery and an electrical heating element. A switch on the housing is operative to selectively connect the battery to the heating element and a removable elongated blade extends through a slot in an end wall of the housing. The blade is heated by the heating element and is insertable into a key slot of a frozen lock. An electrical plug on a rotatable cylindrical member is mounted for movement between extended and retracted positions with respect to the housing and serves to connect the rechargeable battery to a conventional AC outlet. A resilient detent member selectively actuated by a spring-biased push button is operative to secure the rotatable plug in a selected position. The removable thawing blade may be formed in a variety of different key configurations for use in various different locks. A spring ball detent is utilized to removably retain the blade within the housing.
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Bartis Anthony
Kearns Jerry T.
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