Method of Manufacturing a Tube
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United States of America Patent
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Issued Date -
May 22, 2008
app pub date -
May 26, 2005
filing date -
Sep 24, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of manufacturing a tube (8) is disclosed. The method comprises forming a tube (8) by extrusion, causing a body (24) to move longitudinally relative to the internal bore of the tube (8), and determining whether the body (24) ceases to move relative to the tube (8) At least part of said extrusion step and said step of causing a body (24) to move relative to the internal bore of the tube (8) are carried out simultaneously, and the body (24) is caused to move relative to the internal bore of the tube (8) by means of at least one first tensile element (22) attached to said body (24).
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