Cylinder lock system
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United States of America Patent
Stats
-
Oct 20, 1998
Grant Date -
N/A
app pub date -
Jan 29, 1997
filing date -
Jan 29, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A key having profile features which include a shaped indentation on a first side of the blade and an aligned projection on the opposite side of the blade cooperates with a cylinder lock with unauthorized key trapping capability. The lock has an auxiliary locking pin which cooperates with the key indentation and a movable plate member which cooperates with the key projection. Both the indentation and projection must be present and properly sized and shaped for a properly bitted key to operate the lock.
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Cited Art Landscape
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