Method of forming a tubular member
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United States of America Patent
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Sep 10, 2002
Grant Date -
N/A
app pub date -
Dec 20, 2000
filing date -
Jun 5, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of forming a tubular member with longitudinal slots along part of its wall, comprising the steps of: firstly, forming longitudinal zones of weakness along part of the wall of the tubular member, and secondly, expanding the said part of the tubular member radially to cause fracture of the wall of the member along the longitudinal zones, thereby to form longitudinal slots.
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