Window sash lock keeper
AssigneeTruth Hardware Corporation
InventorEdward J. Subliskey
Life of this patent
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Abstract
An improved window sash lock keeper is provided having a slot to provide clearance for a burr, which is typically found on a surface upon which such a sash lock keeper is mounted. The improved keeper is typically mounted flush to a surface of an extruded window component. The clearance slot allows the keeper to be mounted with improved precision and thereby reduces interferences caused by misaligned window hardware.
Claims6
A window sash lock keeper capable of engaging a mating window sash lock wherein said keeper comprises:
- a flat back surface;
- and
- a linear slot extending into and completely across said flat back surface
- wherein said linear slot comprises a depth and width which are chosen so that said slot is capable of providing clearance for a burr or a residual protrusion such as typically associated with extruded window components having a protrusion removed to provide a hardware mating surface
- and wherein said slot is located and oriented relative to a typical mounting position of said keeper and the burr or residual protrusion so that said slot is capable of providing clearance for the burr or residual protrusion or a normal variation thereof.
A method of mounting a window sash lock keeper to an extruded window component having a burr or residual protrusion thereon comprising:
- providing a clearance slot in a back surface of said keeper wherein said clearance slot comprises a width and depth which are chosen to accept a typical burr or residual protrusion on a mounting surface of the extruded window component;
- aligning said keeper and said extruded window component so that said keeper is located to mate properly with a mating window sash lock, said burr or residual protrusion is accepted by said clearance slot and a back surface of said keeper abuts a mounting surface of said extruded window component;
- securing said keeper to said extruded window component by mechanical fasteners passing through mounting screw holes in said keeper and through said extruded window component.
Dependencies are inferred from the claim text.