Theft deterent lock

Details Theft deterent lock Theft deterent lock

1980-12-10

1982-07-13

Wolfe, Robert L.

Locks

Operating mechanism

Key

70422, 70373, E05B 904, E05B 1516

Patent

active

043388060

ABSTRACT:
A theft proof lock which includes a protective sleeve rotatively disposed relative to a lock cylinder so that the protective sleeve is free to rotate whenever a torque or turning movement is imparted thereto by one attempting to tamper with the lock to secure against unauthorized access to the lock secured premises and thereby prohibiting such tampering from defeating the lock.

REFERENCES:
patent: 16123 (1825-07-01), Schorwald
patent: 265474 (1882-10-01), Voll
patent: 1629172 (1927-05-01), Murphy
patent: 2138856 (1938-12-01), Harp
patent: 3899907 (1975-08-01), Prahl
patent: 4222253 (1980-09-01), Peitsmeier

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