Retrofittable electronic and mechanical door lock system

Details Retrofittable electronic and mechanical door lock system Retrofittable electronic and mechanical door lock system

1992-11-17

1995-08-01

Cuomo, Peter M.

Locks

Operating mechanism

Using a powered device

70280, 70DIG62, 70423, 70150, E05B 4706

Patent

active

054371740

ABSTRACT:
A lock system adapted to be used with both conventional mortise and cylinder locks includes an electronic socket to removably receive a button-like metal casing having an integrated circuit therein. The socket transmits code to a microprocessor based circuit which control a rotary two-directional motor. In one embodiment, the motor turns a cam which lifts, or lowers, a frame-like slide having a plunger which fits into a cavity of the cylinder to lock the cylinder.

REFERENCES:
patent: 3733861 (1973-05-01), Lester
patent: 4326125 (1982-04-01), Flies
patent: 4416127 (1983-11-01), Gomez-Olea Naveda
patent: 4466263 (1984-08-01), Rathmann
patent: 4712398 (1987-12-01), Clarkson et al.
patent: 4807454 (1989-02-01), Sengupta et al.
patent: 4988987 (1991-01-01), Barrett et al.
patent: 5057830 (1991-10-01), Eisermann
patent: 5061923 (1991-10-01), Miller et al.
patent: 5265452 (1993-11-01), Dawson et al.

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