Door lock having a deadbolt assembly with a low-cost corrosion-r

Details Door lock having a deadbolt assembly with a low-cost corrosion-r Door lock having a deadbolt assembly with a low-cost corrosion-r

1994-09-27

1996-09-03

Boucher, Darnell M.

Locks

Special application

For closures

292 15, 292337, 292DIG60, 292 2, 70461, 70DIG60, E05B 6506

Patent

active

055512640

ABSTRACT:
A door lock includes a deadbolt assembly and a lock housing assembly. The deadbolt assembly has a bolt member which includes a metal inner sleeve, a metal outer sleeve fitted over the inner sleeve and made of a material which is different from that of the metal inner sleeve and which has anti-corrosion properties, and a security bar disposed axially in the inner sleeve. The lock housing assembly includes an exterior housing section with a cylindrical chamber that receives rotatably an exterior lock cylinder unit therein. The lock cylinder unit has a key-operated rotary plug with a rearwardly projecting spindle that is connected operably to the deadbolt assembly. An interior sleeve member is formed as a cylindrical wall with a front end which is secured to the rear side of the lock cylinder unit and a rear end which is formed with diametrically opposite notches. The deadbolt assembly extends through the sleeve member via the notches. A pair of bolts pass through bolt holes of an interior housing section, the mounting holes of the side plates, the front end of the sleeve member, and engage threadedly the threaded holes of the lock cylinder unit.

REFERENCES:
patent: 4073172 (1978-02-01), Schlage
patent: 4143529 (1979-03-01), Brummett et al.
patent: 4338804 (1982-07-01), Solovieff
patent: 4372594 (1983-02-01), Gater
patent: 4602490 (1986-07-01), Glass et al.
patent: 4656849 (1987-04-01), Rotondi et al.
patent: 4895404 (1990-01-01), Toledano
patent: 4957315 (1990-09-01), Lin
patent: 4976122 (1990-12-01), Doolan et al.
patent: 5152558 (1992-10-01), Smith et al.
patent: 5433495 (1995-07-01), Uffner

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