Window sash counterbalance with independently operable sashes
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United States of America Patent
Stats
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Aug 18, 2015
Grant Date -
Jun 5, 2014
app pub date -
Mar 15, 2013
filing date -
Dec 3, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A window, with a hybrid sash counterbalance and assist mechanism, includes a frame having upper and lower sashes slidable within the frame. A sash coupling element extends between the upper and lower sashes. The hybrid sash counterbalance and assist mechanism is coupled with the sash coupling element. The window with the hybrid sash counterbalance and assist mechanism is operable in a sash counterbalance mode and in an independent sash movement mode. In the sash counterbalance mode, movement of the upper or lower sash causes converse movement of the lower or upper sash through the sash coupling element, and the movement of the upper or lower sash is assisted. In the independent sash movement mode, one of the upper and lower sashes is held static while the other of the lower or upper sashes is moved, and the moved sash is assisted.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date | Type | Sub-Type |
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International Classification(s)
- 2013 Application Filing Year
- E06B Class
- 635 Applications Filed
- 554 Patents Issued To-Date
- 87.25 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- E06B Class
- 14.65 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 18, 2027 |
