Locks – Special application – For closures
Patent
1999-06-18
2000-11-14
Gall, Lloyd A.
Locks
Special application
For closures
292263, 292272, 292304, 29234117, E05C 1732
Patent
active
06145351&
ABSTRACT:
A Z-bar security system, one which is provided with a key and a secured latch, is combined with an electronic alarm and monitoring system. This combination provides the maximum degree of both mechanical and electronic security. In a preferred embodiment, a Z-bar latch assembly has a three-position rotatable cylinder which is operable by a key from outside of the door. These three positions correspond, respectively, to "open", "viewing" and "closed" positions of the door.
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Bloom Leonard
Gall Lloyd A.
The Brooke-Duveen Group Ltd.
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