US 4,134,234 AGranted

Weather strip and balance assembly for nonremovable windows

AssigneeThe Celotex Corporation

InventorEdward H. Wood

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Abstract

This invention relates to an improved weather strip and balance assembly for nonremovable windows in which the weather strip is made of a compressable, high impact material with ridges thereon to mount the sash. The ridges also mount and enclose the balance springs and pulley blocks with the sash cord coupled thereto for counter-balancing the weight of the sash. The sash cord is directed out from behind the weather strip through an opening therein to connect to the sash through an anchor. The length of the sash cord at the connection of the sash is adjustable to adjust the tension of the balance system applied to the sash. The assembly is readily assembled in said jambs of a window frame by securing the same thereto, such as by screws. The assembly is manufactured, shipped and stored without tension thereon to eliminate warpage and displacement of parts.

Claims16

Dependent claims

A weather strip and balance assembly for a nonremovable window having a window frame with side jambs and at least one sash positioned in the frame on said side jambs;

comprising:
(a) a pair of side jamb liners adapted to mount a sash on the side jambs of the window frame, said side jamb liners each being formed of a weather strip and a balance assembly mounted thereon;
(b) said weather strip being formed of a piece of flexible material of a length and width dimension to fit the jamb and having a pair of spaced outwardly extending ridges with a recessed center portion therebetween extending the full length of the same and with the weather strip being bowed outwardly along its width to slidably mount and seal to the sides of a sash at the ridges of the weather strip;
(c) the balance assembly for each jamb liner being formed of a spring positioned in one of the ridges and secured at one end to the ridge with a first pulley secured to said one ridge at its opposite end, a second pulley mounted on an end of the spring in said ridge remote from said one end, and a sash cord secured to the weather strip in said one ridge and directed over and between said pulleys;
(d) a slot in said one ridge of the weather strip intermediate the length of the same receiving and guiding the end of the sash cord from within said ridge to permit connection to a sash positioned on the surface of the ridge;
(e) and means connected to the free end of the sash cord outside of the ridge for connecting the sash cord to a sash positioned on the ridge.

3 more elements

A weather strip and balance assembly for a nonremovable window having a window frame with side jambs and a pair of sash positioned on the side jambs in the frame comprising:

a pair of side jamb liners adapted to mount the sash on the side jambs of the window frame, said side jamb liners each being formed of a weather strip with balance assemblies mounted thereon;
each weather strip being formed of a piece of flexible material having a length and width dimension to fit the jamb of the window frame and having a pair of spaced outwardly extending ridges with a recessed center portion therebetween extending the length of the weather strip, the weather strip further being bowed outwardly along its width to slidably mount and seal to the sides of a sash at the ridges of the weather strip;
the balance assemblies each being formed of a spring means with a sash cord connected thereto and guide means for directing the sash cord such as to apply a tension to a sash, each balance assembly being positioned solely within one of the ridges with each spring secured to the ridge at one end of the weather strip and a guide means secured to the ridge at the opposite end of the weather strip;
each sash cord being directed out of the ridge through a slot in its ridge intermediate the length thereof;
and means connected to the free end of each of the sash cords outside of the ridges for connecting the sash cords to sash adapted to be positioned on the ridges.

2 more elements

Dependencies are inferred from the claim text.