Externally mounted window spring balance replacement device assembly
OwnerTimothy Trunkleinventor
Life of this patent
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Abstract
The invention is an externally mounted window spring balance device assembly for installation on single or double-hung sash windows either not originally equipped with a counter balance device or on single or double-hung sash windows where the counter balance device has become inoperative due to broken or worn out parts. The externally mounted window spring balance replacement device assembly eliminates the need to disassemble the window frame to access broken or worn out parts located internal to the window frame.
Claims7
An externally mounted window spring balance replacement device assembly for mounting on a lateral window frame member of a single or double-hung window sash for providing a mechanical advantage in the opening and closing of the window sash and holding the window sash in an open position, comprising:
- a housing having a longitudinally extending central channel;
- a housing cover that attaches to a front side of said housing;
- a cap installed on a top of said housing which includes a tongue portion which is inserted into a top end of said central channel and secured thereto in a semi-interference fit;
- a base portion installed on a bottom end of said housing and said housing cover;
- a window track which is slidably attached to a rear side of said housing on a frontward side and to the window frame member by a track attachment means on a rearward side and further includes a plurality of longitudinal ribs located on a rearward side of said window track for providing rigidity and stiffness to said window track;
- and
- a device for generating a mechanical advantage located within said housing which is transmitted to the window frame member by said housing and said window track for aiding in the opening and closing of the window and holding the window in the open position.
Dependencies are inferred from the claim text.