Device and method for increasing the wind load resistance and disengage-ability of overhead roll-up doors
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United States of America Patent
Stats
-
Aug 9, 2016
Grant Date -
Mar 13, 2014
app pub date -
Nov 19, 2013
filing date -
Mar 23, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A door assembly having a flexible door panel wound and unwound on a drum or the like to selectively block or permit access through an opening, the flexible door panel having a stiffness, a width, and a length. The door assembly further includes vertically extending side columns disposed on opposite sides of the opening, the side columns being configured to engage a marginal edge of the flexible panel to vertically guide the panel while opening or closing. Attached to a leading edge of the door panel is a bottom bar having a greater stiffness than the door panel and a narrower width than a distance between the vertical panel guide assemblies. Bottom bar guides are disposed proximate a lower portion of the opening and are configured to engage a portion of the bottom bar only when the bottom bar is located in at least a partially closed position.
First Claim
Family
International Classification(s)
Cited Art Landscape
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