Lock for sliding doors or panels

Details Lock for sliding doors or panels Lock for sliding doors or panels

1987-06-26

1988-09-06

Gall, Lloyd A.

Locks

Special application

For closures

70360, 70369, E05B 6508

Patent

active

047683600

ABSTRACT:
A lock is provided for use in preventing relative movement of first and second sliding panels arranged in side-by-side passing relation. The lock includes a lock cylinder that is mounted in the first sliding panel and has an inner wall defining a core-receiving chamber. The lock further includes a lock core that has a slot for receiving a key and is slidably mounted in the core-receiving chamber for movement between a projected and retracted position. In its projected position, the lock core substantially blocks movement of the second sliding panel in relation to the first sliding panel. In its retracted position, the lock core permits unhindered movement of the second sliding panel in relation to the first sliding panel. In a first embodiment, the lock core includes separate first and second control lugs positioned in spaced-apart relation. In a second embodiment, the lock core includes a single control lug.

REFERENCES:
patent: 535915 (1895-03-01), Lubbe et al.
patent: 1050692 (1913-01-01), Resch
patent: 1247532 (1917-11-01), Heath
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patent: 1499444 (1924-07-01), Caillois
patent: 1846822 (1932-02-01), Vogt
patent: 1907625 (1933-05-01), Vogt
patent: 1938339 (1933-12-01), Keil
patent: 2131315 (1938-09-01), Dunseath
patent: 3068682 (1962-12-01), Russell et al.
patent: 3102411 (1963-09-01), Friedman
patent: 3721112 (1973-03-01), Wellekens
patent: 3798935 (1974-03-01), Blekking et al.
patent: 4380915 (1983-04-01), Kincaid et al.
patent: 4444034 (1984-04-01), Best et al.
patent: 4722204 (1988-02-01), Foshee

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