Deadbolt with infinitely adjustable backset

Details Deadbolt with infinitely adjustable backset Deadbolt with infinitely adjustable backset

1994-04-11

1996-03-26

Lindsey, Rodney M.

Closure fasteners

Adjustable backset

292337, 292DIG60, E05C 1900

Patent

active

055014925

ABSTRACT:
A door latch has a case and a bolt movable within the case between an extended position in which the bolt extends forwardly of the case and a retracted position in which the bolt is positioned within the case. A swivel is mounted in the case for turning movement and a link connects the swivel and the bolt whereby turning of the swivel moves the bolt between the extended and retracted positions. The swivel is movable relative to the forward end of the case for adjusting backset to any distance between defined backset adjustment limits. The bolt, link and case have cooperating portions thereof which hold the bolt in a fully extended position, resisting inward movement thereof except by turning of the swivel, at either limit of backset adjustment and at any backset adjustment position therebetween.

REFERENCES:
patent: 326258 (1885-09-01), Woodrich et al.
patent: 4372594 (1983-02-01), Gater
patent: 4772055 (1988-09-01), Fang
patent: 4902057 (1990-02-01), Ching
patent: 4974884 (1990-12-01), Dietrich
patent: 5152558 (1992-10-01), Smith et al.

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