Locks – Special application – For closures
Patent
1992-01-02
1993-09-21
Cuomo, Peter M.
Locks
Special application
For closures
109 59R, 292 39, E05B 6314, E05C 912
Patent
active
052458466
ABSTRACT:
A locking mechanism for use with lightweight security doors includes a first gear and a mechanically associated second gear. A lock disposed proximate the second gear is adapted to form a releasable locking engagement with the second gear. The first gear is mechanically associated with a locking assembly which intercooperates with the door frame of the security door to produce a locking engagement therewith. The locking assembly is actuated by the rotation of the first gear. A rotation of the first gear causes a corresponding rotation of the second gear and vice versa. The second gear is mounted to be manually displaceable whereby the second gear can be displaced out of engagement with the lock and thereby become rotatable notwithstanding that the lock has been set in its locked condition. The locking mechanism provides a construction which may be unlocked by an individual positioned proximate the interior surface of the security door especially someone who has been inadvertently locked in a vault or security room fitted with a security door.
REFERENCES:
patent: 554126 (1896-02-01), Hulse et al.
patent: 1545962 (1925-07-01), Klein
patent: 1876193 (1932-09-01), Wolters
patent: 2375196 (1945-05-01), Cederwall
patent: 4184349 (1980-01-01), Zaks
patent: 4288944 (1981-09-01), Donovan
patent: 4432573 (1984-02-01), Goldman
patent: 4470277 (1984-09-01), Uyeda
patent: 4520736 (1985-06-01), Crosby et al.
patent: 4534192 (1985-08-01), Harshbarger et al.
patent: 4679415 (1987-07-01), Spratt
patent: 5067755 (1991-11-01), James
patent: 5094483 (1992-03-01), James
Cuomo Peter M.
Dino Suzanne L.
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