Control mechanism of electronic lock having double bolts

Details Control mechanism of electronic lock having double bolts Control mechanism of electronic lock having double bolts

1990-04-16

1991-02-26

Gall, Lloyd A.

Locks

Special application

For closures

70277, 70278, 70283, E05B 4706, E05B 5900

Patent

active

049952480

ABSTRACT:
An electronic lock comprises an outside cover having a sensor formed in the cover, an inside cover, a base having batteries stored in the base, a control device and two bolts of which a latch bolt can be retracted or extended for opening or closing a door when the door is not locked and a dead bolt can be operated by a thumbturn formed in the inside cover, and upon an insertion of a correct coded number card to sense the sensor to actuate an electromagnetic coil of the control device, the dead bolt can be operated for unlocking or locking the door from outside a door.

REFERENCES:
patent: 3926021 (1975-12-01), Genest et al.
patent: 4129019 (1978-12-01), Urdal
patent: 4183563 (1980-01-01), Stevens
patent: 4519228 (1985-05-01), Sornes
patent: 4641868 (1987-02-01), Miron
patent: 4656850 (1987-04-01), Tabata
patent: 4672826 (1987-06-01), Mombelli
patent: 4820330 (1989-04-01), Lin

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