Pipe connection for ventilating duct system
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United States of America Patent
Stats
-
Aug 13, 2002
Grant Date -
N/A
app pub date -
Mar 23, 2000
filing date -
Mar 24, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A pipe connection for use in a ventilating duct system having ducts with circular cross-section is adapted to be inserted with a close fit into an outer pipe and be connected therewith. The pipe connection has a circumferential groove, in which a circumferential seal sealing against the inside of the outer pipe is arranged. A terminal edge portion of the pipe connection comprises an outer conical portion which has a diameter decreasing towards the end of the pipe connection, and a circumferential guide surface having such a diameter that said close fit is obtained. The axial length (L3) of the terminal edge portion constitutes about 1.5-5.5% of the diameter of the guide surface. The outer conical portion at its end has a diameter which constitutes about 97-99.9% of the diameter of the guide surface.
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Family
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