Coaxial Pipe Element In Which The Inner Pipe Is Under Strees, And A Method Of Fabrication
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United States of America Patent
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Issued Date -
Nov 11, 2010
app pub date -
Feb 6, 2007
filing date -
Feb 24, 2006
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Abandoned
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Abstract
The present invention relates to a coaxial pipe element comprising an inner pipe and an outer pipe and having at each of its ends a closure of the annular space between these two pipes, in particular by means of a forging, and in which said inner pipe is subjected to traction stress.
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