Burglar resistance lock adapter kit

Details Burglar resistance lock adapter kit Burglar resistance lock adapter kit

1977-01-17

1978-02-21

Wolfe, Robert L.

Locks

Operating mechanism

Key

E05B 1516

Patent

active

040745520

ABSTRACT:
A kit mountable on a front side of a door and against a lock mounted in the door, the kit thus enclosing a front side of the lock from direct contact therewith by a burglar; the kit including a metal frame and a forwardly bulging metal plate secured by bolts to the door front side and which enclose a rotatable key bushing position in front of the lock tumbler which is thus accessible only by a specially long key for being turned.

REFERENCES:
patent: 3083563 (1963-04-01), Greenwald
patent: 3645045 (1972-02-01), Gervis
patent: 3795123 (1974-03-01), Stiffel
patent: 3844144 (1974-10-01), Schmitt
patent: 3976318 (1976-08-01), Krus

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