Flush mount tilt-latch for a sash window and method

Details Flush mount tilt-latch for a sash window and method Flush mount tilt-latch for a sash window and method

1991-10-29

1992-08-18

Moore, Richard E.

Closure fasteners

Bolts

Multiple

292337, 292DIG53, E05C 110

Patent

active

051392917

ABSTRACT:
A pivot latch adapted for releasably securing a pivotable sash window to a master frame. The master frame has opposed, vertically extending guide rails. The sash has a hollow top sash rail, a base and a pair of hollow stiles cooperatively connected together at adjacent extremities thereof to form a rectangular sash frame. The top sash rail includes a pair of opposing header slots. Each of the header slots forms a pair of opposing, longitudinal header rails. The pivot latch comprises a housing having an outward end opening. A latch bolt is disposed within the housing. The pivot latch further includes a spring for biasing the latch bolt outwardly through the outward end opening and is adapted for engaging one of the guide rails. The housing has a cover having longitudinal edges and a pair of side walls depending from the cover and disposed inward of the edges. Each of the side walls has a side wall rail which cooperates with a respective one of the housing cover edges to form a longitudinal groove adapted to cooperatively receive a respective pair of the header rails. A tab depending from the housing is provided for engaging a respective one of the stiles to retain the tilt latch in position.
A method of manufacturing a pivotable sash window including such a pivot latch is also disclosed.

REFERENCES:
patent: 4475311 (1984-10-01), Gibson
patent: 4553353 (1985-11-01), Simpson
patent: 4578903 (1986-04-01), Simpson
patent: 4622778 (1986-11-01), Simpson
patent: 4669765 (1987-06-01), Ullman
patent: 4790579 (1988-12-01), Maxwell et al.
patent: 4791756 (1988-12-01), Simpson
patent: 4824154 (1989-04-01), Simpson
patent: 4837975 (1989-06-01), Simpson
patent: 4901475 (1990-02-01), Simpson
patent: 5028083 (1991-07-01), Mischenko

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