Alarm capability for pin tumbler locks

Details Alarm capability for pin tumbler locks Alarm capability for pin tumbler locks

1986-04-24

1987-04-14

Wolfe, Robert L.

Locks

Operating mechanism

Using a powered device

70419, 70441, 70DIG49, E05B 4700

Patent

active

046568514

ABSTRACT:
Fiber optic sensors are used at one or more of the top pin and spring asslies in a pin tumbler lock to sense either authorized or unauthorized attempt to open the lock. A fiber optic switching element, in a simple capsule form, can be installed in new or existing locks. Fiber optic circuitry signals surreptitious attempts to open the lock.

REFERENCES:
patent: 3750158 (1973-07-01), Anastassakis
patent: 3967481 (1976-07-01), Schlage
patent: 4186578 (1980-02-01), Sommer
patent: 4573046 (1986-02-01), Pinnow

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