Adjustable lock for sliding closures

Details Adjustable lock for sliding closures Adjustable lock for sliding closures

1985-05-06

1987-06-23

Moore, Richard E.

Closure fasteners

Extension link

Multiple

292DIG46, E05C 1732

Patent

active

046747796

ABSTRACT:
An adjustable lock for sliding patio doors and other closures comprises first and second rigid, bar-shaped links arranged end to end and pivotally interconnected. The outer end of one link is pivotally connected to a bracket which in turn is mounted on a structural member. The outer end of the other link is pivotally connected to a second bracket which in turn is mounted on a sliding closure, for example a sliding patio door. The links are adjustable between a straight-line, locked position, and a jackknifed, unlocked position.
Means are provided for adjusting the length of one of the links to tension the assembly and to adapt it to openings of various dimensions as well as to provide, when desired, a partially open position of the closure while still in locked condition for ventilating purposes and also to permit the entry of pets.

REFERENCES:
patent: 2284003 (1942-05-01), Luppert
patent: 3486781 (1969-12-01), Crum
patent: 3608940 (1971-09-01), Mueller
patent: 3698754 (1972-10-01), Means
patent: 4070049 (1978-01-01), Brewer
patent: 4295676 (1981-10-01), Smith

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