MANUFACTURING A PIPING ELEMENT, AND PIPING ELEMENT
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United States of America Patent
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Issued Date -
Jul 8, 2010
app pub date -
May 22, 2008
filing date -
May 23, 2007
priority date (Note) -
Abandoned
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Abstract
A piping element (1) comprises at least one flow pipe (4), an insulator (3) arranged outside it and a corrugated outer sheath (2) arranged outside the insulator (3) in such a way that the piping element (1) is bendable in its entirety. The outer diameter of the insulator (3) is reduced before conducting it to a corrugator (13) inside the outer sheath (2). In the corrugator (13), the insulator (3) reverts towards its larger outer diameter. The free outer diameter of the insulator layer is formed larger than the smallest inner diameter of the outer sheath (2).
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