Door lock apparatus

Details Door lock apparatus Door lock apparatus

1990-01-30

1991-04-23

Moore, Richard E.

Closure fasteners

Bolts

Sliding

70256, 292144, 292DIG25, 292DIG66, E05C 116

Patent

active

050094564

ABSTRACT:
A door lock apparatus includes a latch bolt which can be displaced from an operable position by actuating a door handle driver against the action of a biasing spring. A displaceable catch is provided for retaining the latch bolt in a retracted position. The catch is biased by a second spring into its catch position from which it can be displaced by an electromagnetic actuator, which in turn is connected to a wireless signal receiver. An alarm detector, remotely placed from the lock apparatus and connected to a wireless signal transmitter, is adapted to be activated when the detector detects a state of alarm, sending a signal which is detectable by the receiver at the lock apparatus for displacing the catch out of its catch position.

REFERENCES:
patent: 2382062 (1945-08-01), Joachim
patent: 4200954 (1980-05-01), McCabe
patent: 4663626 (1987-05-01), Smith
patent: 4726613 (1988-02-01), Foshee
patent: 4825210 (1989-04-01), Buchhube et al.
patent: 4854619 (1989-08-01), Nakauchi

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