Transverse joint system for sheet metal ducts
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United States of America Patent
Stats
-
Jul 24, 1984
Grant Date -
N/A
app pub date -
Mar 23, 1983
filing date -
Mar 23, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Abutting sections of sheet metal ducts are joined at an interface by flanging the ends of each section adjacent the interface and forming a plurality of spaced tabs in the wall surface of the flanges, which tabs protrude outwardly in a direction away from the interface. A generally V-shaped coupling member, having a portion of the free edges thereof folded back under the corresponding side wall, is then assembled over a pair of opposed flanges with the edges of the folded under portions snapping in behind the tabs to lock the flanges together.
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Cited Art Landscape
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