Duct flange
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 23, 2010
Grant Date -
May 15, 2008
app pub date -
Nov 8, 2007
filing date -
Nov 10, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flange for ductwork is integrally formed at a distal end of a duct surface. A first flange portion is formed perpendicularly outward from the duct surface. A second flange portion is bent at a right angle from the first flange portion and substantially parallel to the duct surface. A third flange portion is bent back to be in substantial touching relationship with the second flange portion and towards the first flange portion. A fourth flange portion is bent at a right angle from the third flange portion to be in substantial touching relationship with the first flange portion. Finally, a fifth flange portion is bent at a right angle from the fourth flange portion to be in substantial touching relationship with the duct surface.
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