Electronic locking system and key therefor

Details Electronic locking system and key therefor Electronic locking system and key therefor

1986-03-21

1987-12-15

Wolfe, Robert L.

Locks

Operating mechanism

Using a powered device

70278, 70383, 70364A, 361172, E05B 4706

Patent

active

047123982

ABSTRACT:
An electronic locking system including a lock cylinder having an electronically actuable release assembly which is selectively enabled to disengage a pin from a cylinder plug, to permit the rotation of the plug by an inserted key. The lock cylinder and key each contain non-volatile, electronically alterable memory devices, such as EEPROM integrated circuits, which house keying system codes. The key EEPROM is preferably housed within the key blade, in a key design which closely resembles a traditional mechanical key without the usual bitting. The release mechanism incorporates a locking pin which is moveable between plug-engaging and non-engaging positions, along a radius of the lock cylinder. The release mechanism may include a primary actuator which directly moves the locking pin, or may act indirectly upon the locking pin via a latching member.

REFERENCES:
patent: 1455577 (1923-05-01), Epstein
patent: 2732703 (1956-01-01), Noregaard
patent: 2806729 (1957-09-01), Whipple
patent: 3541822 (1970-11-01), Murphy
patent: 3644745 (1972-02-01), Bell
patent: 3763676 (1973-10-01), Schachter et al.
patent: 3798398 (1974-03-01), Hills
patent: 3800572 (1974-04-01), Beharelle
patent: 3889501 (1975-06-01), Fort

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