Security lock for a sash type window

Details Security lock for a sash type window Security lock for a sash type window

2008-01-29

2008-01-29

Lugo, Carlos (Department: 3676)

Closure fasteners

Bolts

Swinging and camming

C292S240000, C292SDIG020, C292SDIG047, C049S449000

Reexamination Certificate

active

07322620

ABSTRACT:
A security lock for sash windows includes an elongated cam that revolves in order to engage a keeper. The security lock also includes a tab that urges the cam against a wall of a housing to provide extra security. Once the cam contacts the housing wall it will not rotate to open as occurs in conventional sash locks. A groove and a race within the top inside of the housing direct a guide affixed to the top of the cam a), initially in a circular direction, and b), finally into a lateral direction into engagement with a locking stud on the wall of the housing. A rotating tab affixed to the handle axle causes the final cam movement during the locking process.

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