Balance spring locking slide block for tilt-out windows

Details Balance spring locking slide block for tilt-out windows Balance spring locking slide block for tilt-out windows

1984-12-20

1986-09-09

Downey, Kenneth

Movable or removable closures

Mounted for optional movements

Pivot mounted on sliding member; e.g., slide-stile

49453, E05D 1522

Patent

active

046101080

ABSTRACT:
The invention relates to tilt-out window assemblies in which a window sash may be rotated from its normal vertical position causing a slide block connected to a spring balance assembly to be locked into place to prevent release of the spring balance assembly on tilting or removal of the window sash from the window frame. The slide block rides in the jamb channel in which the window sash normally slides up and down and incorporates a rotatable locking cam. The locking cam is rotated on tilting of the window sash so as to force a set of locking members against the sides of the window frame jamb channel to engage the block into a fixed position in the channel. The window sash is operatively connected to the locking cam to provide rotation thereof to lock the slidable block. The window sash may be removed from the frame and from engagement with the locking cam if desired.

REFERENCES:
patent: 3055062 (1962-09-01), Peters et al.
patent: 3195174 (1965-07-01), Nobes
patent: 3434236 (1969-03-01), Weidner et al.
patent: 3524282 (1970-08-01), Kraft et al.
patent: 3676956 (1972-07-01), Taylor et al.
patent: 3797168 (1974-03-01), Trout
patent: 3842540 (1974-10-01), Anderson
patent: 3844066 (1974-10-01), Nobes
patent: 4079549 (1978-03-01), Wood
patent: 4364199 (1982-12-01), Johnson et al.
patent: 4452012 (1984-06-01), Deal
Caldwell Aluma-Tilt Balance by Caldwell Manufacturing Co., P.O. Box 444, Rochester, New York 14602.
Jim Walter Window Components, Series 9000 Balance/Weatherstrip for Full-Tilt Windows by J. W. W. C. 1009 Algonquin/Sioux Falls, South Dakota.

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