Lock handle assembly with limited angular movement

Details Lock handle assembly with limited angular movement Lock handle assembly with limited angular movement

1990-12-21

1991-11-26

Nicholson, Eric K.

Closure fasteners

Knobs

292356, 292244, E05B 100

Patent

active

050677586

ABSTRACT:
In a lock handle assembly, a lever handle has a rotary shaft to actuate a deadbolt which latches a door. The angular movement of the lever handle is limited by a mechanism including a rotary plate having radially projecting engaging members and mounted on the shaft, a fixed stop member to limit the forward movement of the rotary plate and a releasable stop member to limit the backward movement of the rotary plate. The shaft of the handle is detachably mounted to a casing by being fitted in a sleeve which in turned is mounted to the casing, thereby facilitating the replacement of the handle of the assembly.

REFERENCES:
patent: 2707649 (1955-05-01), Young
patent: 2924480 (1960-02-01), Holland
patent: 3014748 (1961-12-01), Welch et al.
patent: 4042268 (1977-08-01), Coglan
patent: 4067599 (1978-01-01), Ohno
patent: 4343502 (1982-08-01), Nelson
patent: 4604879 (1986-08-01), Neary et al.
patent: 4877278 (1989-10-01), Valley
patent: 4998760 (1991-03-01), Nixon et al.

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