Security lock mechanism

Details Security lock mechanism Security lock mechanism

E - Fixed Constructions

05

C

70/38, 268/7

E05C 1/16 (2006.01) E05B 47/00 (2006.01) E05B 55/00 (2006.01) E05B 15/00 (2006.01) E05B 47/02 (2006.01) E05B 51/02 (2006.01)

Patent

CA 1328119

ABSTRACT OF THE DISCLOSURE Multiple embodiments of a security lock mechanism 12 being adapted for both deadlock and slam-lock operation are disclosed with different combina- tions of features including a housing 30, a movable locking bolt 20, a rotatablecam 18 having a pin engaged with a slot 36 in the bolt and a centering device such as a remote drive unit 16 or double-acting spring mechanism coupled with the rotatable cam by a lost motion coupling 54 for facilitating slam-lock and deadlock operation of the security lock mechanism. With the remote drive unit being a pneumatically operated cylinder 42 and piston 44, the piston is preferably of split construction to facilitate overriding operation of the remote drive unit, for example, by a key.

596884

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