Connecting structure for a pipe
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United States of America Patent
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Issued Date -
Apr 2, 2009
app pub date -
Oct 2, 2008
filing date -
Oct 2, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a connecting structure between a pipe and a coupling. The pipe has an inner lining and a fibre-reinforced layer surrounding the lining. The coupling has a coupling piece having an outer wedge-shaped surface, a sleeve surrounding the coupling piece, the inner surface of which sleeve is formed to match the outer wedge-shaped surface of the coupling piece, as well as a coupling end which interacts with the coupling piece. The fibre-reinforced layer is accommodated between the coupling piece and the sleeve and is clamped inbetween. The outer surface of the coupling piece has at least two portions with different wedge angles and the inner surface of the sleeve has two correspondingly formed portions with different wedge angles.
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