Combination lock monitoring system

Details Combination lock monitoring system Combination lock monitoring system

G - Physics

08

B

340/124.5

G08B 1/08 (2006.01) E05B 17/22 (2006.01) E05B 37/00 (2006.01) E05B 37/08 (2006.01)

Patent

CA 1172724

A B S T R A C T "COMBINATION LOCK MONITORING SYSTEM" A combination lock monitoring system for recognizing and indicating electronically the condition of operation of the lock, the recognition being achieved by photo sensitive means responding to the light reflecting quality of areas on the lock bolt mechanism, the lock drop arm and a combination wheel of the combination lock, the electronic circuit responding through a binary code to the condition of the photo sensitive means, and the indication including a visual display.

393973

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