Locks – Operating mechanism – Key
Patent
1983-11-07
1985-06-11
Wolfe, Robert L.
Locks
Operating mechanism
Key
70452, 70381, E05B 6300
Patent
active
045220484
ABSTRACT:
A lock and door reinforcing plate device comprising plate members adapted to be secured to the opposite faces of the door by common bolt members which extend through the plates and the door and the lock assembly, a tube member is secured to the inner face of one of the plate members and extend through the door for encasing the usual lock cylinder assembly, the lock cylinder assembly is secured to one of the plates and is disposed within the tube in a manner substantially precluding unauthorized tampering or removal of the lock cylinder assembly thus substantially precluding unauthorized unlocking of the lock assembly.
REFERENCES:
patent: Re16123 (1925-07-01), Schonwald
patent: 4466264 (1984-08-01), de Nero
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