Retractable screen system providing a positioning force for a movable sash
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United States of America Patent
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N/A
Issued Date -
Apr 21, 2005
app pub date -
Oct 17, 2003
filing date -
Oct 17, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A door with a moveable window sash and a method of operating the same. The door includes vertical jambs with vertical channels. A window sash is movable in the vertical channels. A retractable screen assembly is attached to the door. The retractable screen assembly includes a roller, a flexible screen attached at a first end to the roller and at a second end to the movable window sash, and a biasing mechanism adapted to apply a continuous torque to the roller. The torque generates a positioning force on the window sash equal to at least 50% of the force of gravity acting on a window sash, such that the window sash can be positioned at an infinite number of locations along the vertical channels.
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Family
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Cited Art Landscape
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