High security internal locking system

Details High security internal locking system High security internal locking system

1984-05-29

1986-05-13

Wolfe, Robert L.

Locks

Operating mechanism

Key

E05B 1714

Patent

active

045878170

ABSTRACT:
A locking system that consists of two locking mechanisms protected by a dl resistive shutter plate. The shutter plate can be rotated to expose a first lock which when unlocked allows it to be further rotated to uncover the second lock. Upon unlocking the second lock, the drive for the main bolt lock can then be actuated.

REFERENCES:
patent: 4073165 (1978-02-01), Grundstrom
patent: 4142390 (1979-03-01), Schroeder

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