Door latch assembly

Details Door latch assembly Door latch assembly

1990-12-31

1993-11-09

Nicholson, Eric K.

Closure fasteners

Bolts

Sliding

29216916, 29216918, 29216921, E05C 116

Patent

active

052596524

ABSTRACT:
A latch assembly comprising a housing; a latch element retractably mounted in said housing; a spindle extending transversely through the housing and rotatably mounted therein; an operative connection between the spindle and the latch element whereby the latch element is retracted into the housing in response to turning movement of the spindle comprising two hub elements relatively rotatably mounted on the spindle, an operating plate arranged to move longitudinally of the housing in response to rotational movement of the hub elements, a drawbar attached to the latch element for movement therewith, and a latch lever through which movement of the operating plate is translated to the drawbar; and a pawl for selective engagement with one or the other or neither of said hub elements.

REFERENCES:
patent: 2473080 (1949-06-01), Vander Henst
patent: 2593573 (1952-04-01), Kulbersh
patent: 2743600 (1956-05-01), Heyer
patent: 2755121 (1956-07-01), Aslagsen
patent: 2808279 (1957-10-01), Schlage
patent: 4108482 (1978-08-01), Dietrich et al.
patent: 4974883 (1990-12-01), Jans

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