Window lock keeper

Details Window lock keeper Window lock keeper

2007-11-20

2007-11-20

Glessner, Brian E. (Department: 3676)

Closure fasteners

Bolts

Swinging and camming

C292SDIG047

Reexamination Certificate

active

10932883

ABSTRACT:
An improved sash lock and keeper for a sash window assembly is disclosed. The sash window includes an upper sash window and a lower sash window. Each of the sashes is mounted within opposed guide rails which permit at least one of the sashes to travel slidably therein. The sash lock includes an actuator for engaging a keeper. The keeper is mounted on a style of one of the sash windows. The actuator has an actuator arm and a cam. The cam has a cam surface for engaging a keeper surface. When the cam surface engages the keeper surface thereby locking the two sashes, a flag extends from the keeper to signal that the actuator is in locking engagement with the keeper.

REFERENCES:
patent: 369885 (1887-09-01), Shaw
patent: 986555 (1911-03-01), Donat
patent: 1617813 (1927-02-01), Judge
patent: 1651048 (1927-11-01), Talbot
patent: 2480016 (1949-08-01), Granberg
patent: 4050724 (1977-09-01), Nakanishi
patent: 4061370 (1977-12-01), Hauber
patent: 4063766 (1977-12-01), Granberg
patent: 5437173 (1995-08-01), Spinar
patent: 6848728 (2005-02-01), Rotondi et al.
patent: 2004/0026932 (2004-02-01), Coleman et al.
patent: 2006/0087130 (2006-04-01), Liang

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