Electronically self-latching cylinder lock

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

1990-04-11

1991-01-08

Wolfe, Robert L.

Locks

Operating mechanism

Key

70277, 70283, 70441, 70DIG49, E05B 4900

Patent

active

049825879

ABSTRACT:
An electronically self-latching cylinder lock comprising a cylinder into which a plug is inserted, a plurality of paired 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 with a latch which is driven with a solenoid, when an incorrect key is inserted into the key way.

REFERENCES:
patent: 1789754 (1931-01-01), Jacobi
patent: 3889501 (1975-06-01), Fort
patent: 4712398 (1987-12-01), Clarkson
patent: 4848115 (1989-07-01), Clarkson

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