Combined door latch and deadbolt arrangement

Details Combined door latch and deadbolt arrangement Combined door latch and deadbolt arrangement

1982-04-22

1986-04-01

Wolfe, Robert L.

Locks

Special application

For closures

70462, E05B 5900

Patent

active

045789673

ABSTRACT:
A lock comprising a housing having a push latch bar and a deadbolt which are each extendible and fully withdrawable into the housing. The dead bolt is actuated to the two positions by an over-center spring and a lever having a relatively long arm and a relatively short arm. The short arm includes a cam follower. The lever is actuated by a cam which is turned by a key. A detent notch in one edge of the dead bolt cooperates with a locking lever pivotally mounted within the housing for actuation by the cam. The push latch bar comprises a head and tail of similar thickness but different width, joined by a body having a width similar to that of the head but a thickness less than that of the head or the tail, forming opposed shoulders on the head and the tail. A pusher bar is urged by a spring against the shoulder formed by the head. A second lever pushes against the shoulder formed by the tail to the push latch bar. The push latch may be reversed so that the door can swing in either direction.

REFERENCES:
patent: 197531 (1877-11-01), Vetter
patent: 580890 (1893-11-01), Linsmayer
patent: 3129579 (1964-04-01), Bellantuono
patent: 3672714 (1972-06-01), Schultz

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