Auxiliary lock with an extensible device

Details Auxiliary lock with an extensible device Auxiliary lock with an extensible device

1989-10-27

1990-08-21

Gall, Lloyd A.

Closure fasteners

Bolt casings

292DIG74, E05B 906

Patent

active

049500082

ABSTRACT:
An auxiliary lock is disclosed on which it is possible to change its length by turning and moving a combining plate to cause an extensible shell to turn and move around a cylinder so that a projection in the extensible shell may extend into one of two positioning holes in the cylinder to form the short length or in the other positioning hole to form the long length. At the same time, a connecting pin in a deadbolt moves in a U-shaped slot and a reversed U-shaped slot in a moving plate operable by a mechanism in the combining plate.

REFERENCES:
patent: 4372594 (1983-02-01), Gater
patent: 4602490 (1986-07-01), Glass et al.
patent: 4662665 (1987-05-01), Lin
patent: 4664433 (1987-05-01), Solovieff
patent: 4725086 (1988-02-01), Shen
patent: 4752090 (1988-06-01), Lin
patent: 4759576 (1988-07-01), Ching
patent: 4767140 (1988-08-01), Lin

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