Lock

Details Lock Lock

2001-11-09

2003-12-30

Sandy, Robert J. (Department: 3672)

Closure fasteners

Bolts

Swinging

C070S467000, C292S169000, C292S341170, C292S180000

Reexamination Certificate

active

06669246

ABSTRACT:

This invention relates to a lock for a movable wing, and particularly to a lock intended to be rim fitted to a domestic entrance door.
According to the invention a lock for a wing movable between respective open and closed positions relative to a frame comprises a casing, a bolt operable to extend from the casing or to retract into said casing to a first, normally retracted position, and bolt retention means manually operable at one side of the wing, in use, the bolt retention means being inoperable when said bolt is in its said first, normally retracted position, the bolt being movable in a direction into the casing from its first, normally retracted position, to a second retracted position in which said bolt retention means is operable to a position to retain the bolt retracted.
Preferably said bolt retention means retain the bolt in its first retracted position. More preferably said bolt is releasable from its retention in its first retracted position only by movement of the bolt to its said second retracted position. Desirably said release of the bolt from the bolt retention means is automatic when said retained bolt reaches its second retracted position. Conveniently in said second retracted position, part of said bolt engages a rear wall of the casing.


REFERENCES:
patent: 3129579 (1964-04-01), Bellantuono
patent: 3688531 (1972-09-01), Hawkins
patent: 3851325 (1974-11-01), Maged
patent: 3912309 (1975-10-01), Fischer et al.
patent: 4578967 (1986-04-01), Yu
patent: 4765663 (1988-08-01), Raymond et al.
patent: 4854619 (1989-08-01), Nakauchi
patent: 4917416 (1990-04-01), Westphal et al.
patent: 5516160 (1996-05-01), Kajuch
patent: 5605362 (1997-02-01), Surko, Jr.
patent: 5615919 (1997-04-01), Ivey
patent: 5862692 (1999-01-01), Legault et al.
patent: 5941581 (1999-08-01), Heithe
patent: 6120071 (2000-09-01), Picard et al.
patent: 6151935 (2000-11-01), Evans et al.
patent: 6174004 (2001-01-01), Picard et al.
patent: 6502438 (2003-01-01), Miller et al.
patent: 321113 (1929-01-01), None
patent: 2 242 701 (1991-10-01), None

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