Door lock assembly

Details Door lock assembly Door lock assembly

1977-08-09

1978-11-14

Holko, Thomas J.

Closure fasteners

Bolts

Sliding

70129, E05C 104

Patent

active

041252810

ABSTRACT:
A door assembly includes a door panel having a reciprocating bolt mounted therebehind with its nose projectable through the door side edge and into a keeper opening in an adjacent door frame side edge. Extending normal to the base of the bolt is an actuator having a lock section disposed through a cutout in the door panel. A lock plate extends outwardly from the door adjacent the panel cutout and includes an offset handle plate overlying the actuator when the bolt is moved to its locked position, at which time a security plate attached to the actuator behind the panel closes or masks the cutout. Aligned openings in the lock section and lock plate then allow the application of a suitable lock device to immobilize the lock section and bolt in the locked position.

REFERENCES:
patent: 145131 (1873-12-01), Smith
patent: 1041700 (1912-10-01), Thornley
patent: 1260469 (1918-03-01), Smith
patent: 1724116 (1929-08-01), Swearengin
patent: 2781215 (1957-02-01), Griffith
patent: 3334933 (1967-08-01), Ehlers
patent: 3374020 (1968-03-01), Berg
patent: 3799593 (1974-03-01), Dielman
patent: 3815945 (1974-06-01), Lamphere
patent: 3838586 (1974-10-01), Tennison

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