Method and apparatus for maintaining seam alignment in seam welded tubes
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United States of America Patent
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Feb 9, 1999
Issued Date -
N/A
app pub date -
May 5, 1997
filing date -
May 5, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
The invention comprises a method and apparatus for maintaining seam alignment in seam welded tubes comprising the tube being formed to be advanced through a shaping station after seam welding and prior to the cooling of tube wherein the tube is preformed to commence to assume at least two continuously extending flat shaped surfaces parallel with the continuous seam and contacting the preformed tube subsequent to the cooling to maintain alignment of the weld seam.
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