Bi-directional deadlock

Details Bi-directional deadlock Bi-directional deadlock

1987-02-03

1988-04-26

Wolfe, Robert L.

Locks

Special application

For closures

70134, 70143, 70221, 70386, 292 74, 292335, E05B 6506

Patent

active

047396385

ABSTRACT:
A deadlock includes a casing, a front knob and a rear knob respectively rotatably formed on the front and rear walls of the casing, and a slidable latch reciprocatively mounted in the casing as driven by either the front or rear knob, wherein the latch is formed a triangular locking tongue having two inclined surfaces so that the latch can be conveniently used in a bi-directional door when opening the door either outwards or inwards.

REFERENCES:
patent: 2111511 (1938-03-01), Lowe
patent: 2446753 (1948-08-01), Floraday
patent: 2676829 (1954-04-01), Sterner
patent: 2745120 (1956-07-01), Young
patent: 3495861 (1970-02-01), Snow
patent: 3621686 (1971-11-01), Klein

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