Electronically self-latching cylinder lock

Details Electronically self-latching cylinder lock Electronically self-latching cylinder lock

1990-02-16

1990-09-04

Wolfe, Robert L.

Locks

Parts, attachments, accessories and adjuncts

Condition indicators

70419, 70DIG49, E05B 1700

Patent

active

049533754

ABSTRACT:
An electronically self-latching cylinder lock comprising a cylinder into which a plug is eccentrically inserted, a plurality pairs of pin tumblers each of which is disposed in one of a plurality of bores formed inside the cylinder and the plug, and a plurality of switches which are controlled by the pin tumblers. The switches are used to actuate an electronic circuit to send out warnings with a buzzer and to secure the plug at its locked position by a latch means, which is controlled by a solenoid, when an incorrect key is inserted into the key way.

REFERENCES:
patent: 2623959 (1952-12-01), Jarrett
patent: 4186578 (1980-02-01), Sommer
patent: 4205542 (1980-06-01), Renda
patent: 4328691 (1982-05-01), Scherbing

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