Control mechanism for tubular locks

Details Control mechanism for tubular locks Control mechanism for tubular locks

1997-04-22

1998-07-28

Barrett, Suzanne Dino

Locks

Special application

For control and machine elements

2923363, 292357, 70223, B60R 2502

Patent

active

057849099

ABSTRACT:
A tubular lock assembly includes an inner handle, an outer handle, and a control mechanism. An outer protective cover is mounted to the outer side of the door plate and includes a pair of notches defined therein. The control mechanism includes a tubular shaft, a latch plate including a pair of protrusions formed on a mediate portion thereof, and a stop plate including two teeth. The tubular shaft includes a first end securely attached to the inner handle to rotate therewith and a second end. Two blocks are formed on the second end of the tubular shaft and have an operative recess defined therebetween. The teeth of the stop plate are received in the notches of the outer protective cover when the tubular lock assembly is in a locked position, and rotation of the inner handle in either direction causes the protrusions to be received in the operative recess of the tubular shaft such that the teeth of the stop plate disengage from the notches of the outer protective cover for unlatching.

REFERENCES:
patent: 5118152 (1992-06-01), Lin
patent: 5157952 (1992-10-01), Lin
patent: 5190327 (1993-03-01), Lin
patent: 5284372 (1994-02-01), Lin
patent: 5372025 (1994-12-01), Lin
patent: 5556144 (1996-09-01), Lin
patent: 5564296 (1996-10-01), Theriault et al.
patent: 5598726 (1997-02-01), Cordle
patent: 5666833 (1997-09-01), Gao et al.

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