Cylinder lock system

Details Cylinder lock system Cylinder lock system

1997-01-29

1998-10-20

Meyers, Steven N.

Locks

Operating mechanism

Key

70389, 70390, 70406, F05B 1500

Patent

active

058230300

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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patent: 4869085 (1989-09-01), Meissner
patent: 5493884 (1996-02-01), Hinz et al.

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