Pipe-in-pipe mechanical bonded joint assembly
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United States of America Patent
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May 15, 2001
Grant Date -
N/A
app pub date -
Mar 24, 2000
filing date -
Mar 24, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
The invention is directed to a double-wall steel pipe joint. Each section of double-wall steel pipe has a steel outer casing and a steel inner carrier pipe. The completed joint comprises a steel joint ring fitted within the annular space at the end of each double-wall steel pipe section. The combination of locking serration and epoxy bonding join and seal the inner steel pipe to the bore of the joint ring, without welding. Welding joins the ends of the sections of outer casing.
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