Tubular duct member
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United States of America Patent
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-
Apr 15, 2014
Issued Date -
N/A
app pub date -
Aug 17, 2010
filing date -
Feb 18, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tubular duct member comprises a plurality of sheet metal panels 10, 12 joined along adjacent longitudinal edges by cooperating folded sheet metal catches 14, 16, the catches being pushed together such that respective detent surfaces 28, 30 on each catch engage behind one another to retain the edges of the sheets together. One of the catches 14 includes a body 36 of resilient material compressed between the catches and biasing the catches apart to maintain the detent surfaces 28, 30 bearing against one another.
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