Security lock mechanism

Details Security lock mechanism Security lock mechanism

1988-04-18

1990-04-03

Moore, Richard E.

Closure fasteners

Bolts

Sliding

292DIG62, 292DIG49, E05B 4700

Patent

active

049134752

ABSTRACT:
Multiple embodiments of a security lock mechanism being adapted for both deadlocked and slam-lock operation are disclosed with different combinations of features including a housing, a movable locking bolt, a rotatable cam having a pin engaged with a slot in the bolt and a centering device such as a remote drive unit or double-acting spring mechanism coupled with the rotatable cam by a lost motion coupling for facilitating slam-lock and deadlocked operation of the security lock mechanism. With the remote drive unit being a pneumatically operated cylinder and piston, the piston is preferably of split construction to facilitate overriding operation of the remote drive unit, for example, by a key.

REFERENCES:
patent: 241998 (1881-05-01), King
patent: 611790 (1898-10-01), Miltier
patent: 1701790 (1929-02-01), Morin, Jr.
patent: 2763888 (1956-09-01), Billeter
patent: 3646612 (1972-02-01), Anderson
patent: 3893723 (1975-07-01), Boule
patent: 4691542 (1987-09-01), Young

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