Movable or removable closures – Mounted for optional movements – Pivot mounted on sliding member; e.g. – slide-stile
Patent
1997-06-23
1999-02-23
Redman, Jerry
Movable or removable closures
Mounted for optional movements
Pivot mounted on sliding member; e.g., slide-stile
49176, 49445, E05D 1522
Patent
active
058731997
ABSTRACT:
A locking device for countering the force exerted by a spring balance while a window sash is in a tilt position or removed from a tilt position in a window frame, includes a shoe and a sash pin, the shoe engaging the walls of a jamb or jambliner when the window sash is tilted or removed from a tilt position, and the sash pin having a tab for preventing disengagement from the shoe during installation in a window frame. The shoe includes a pair of arms, one of which terminates in a barb and the other of which terminates in an angled edge, such that upon rotation, the shoe forms a wedge within a jamb or jambliner. The shoe further includes a plurality of prongs disposed between the arms for retaining the sash pin, and a bore for retaining an attachment mechanism associated with a spring balance. In response to tilting of the window sash away from the vertical axis of the jamb or jambliner, the locking device assumes a locked position as the sash pin rotates the shoe, and the barb and the angled edge engage the walls of the jamb or jambliner. Once engaged, the shoe becomes wedged within the jamb or jambliner such that the shoe is locked in place and effectively counters the forces exerted thereon by the spring balance.
REFERENCES:
patent: 2987758 (1961-06-01), Osten, Sr.
patent: 3012292 (1961-12-01), Brengman
patent: 3222733 (1965-12-01), Wahlfeld et al.
patent: 3429071 (1969-02-01), Phillips
patent: 3797168 (1974-03-01), Trout
patent: 4190930 (1980-03-01), Prosser
patent: 4271631 (1981-06-01), Trout
patent: 4570382 (1986-02-01), Suess
patent: 4887398 (1989-12-01), Haltof
patent: 4914861 (1990-04-01), May
patent: 4914862 (1990-04-01), Gregory
patent: 5027557 (1991-07-01), May
patent: 5033235 (1991-07-01), Stark
patent: 5036622 (1991-08-01), Stark
patent: 5077939 (1992-01-01), Erickson
patent: 5117586 (1992-06-01), Stark
patent: 5174064 (1992-12-01), Stark
patent: 5189838 (1993-03-01), Westfall
patent: 5542212 (1996-08-01), Erickson et al.
patent: 5572828 (1996-11-01), Westfall
patent: 5737877 (1998-04-01), Meunter et al.
Meunier Scott
Newman Gary
Skallerud Richard
VerSteeg Lawrence
Amesbury Group Inc.
Redman Jerry
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