COUPLING CONSTRUCTION FOR HIGH-PRESSURE PIPE
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United States of America Patent
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Issued Date -
Apr 16, 2009
app pub date -
Oct 15, 2008
filing date -
Oct 15, 2007
priority date (Note) -
Abandoned
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Abstract
A coupling construction includes a coupling element and at least one high-pressure pipe, the high-pressure pipe including an external sheathing layer, a reinforcement layer and an internal lining. The coupling includes an internal welding sleeve, the external surface of which bears a helically wound heating element, as well as a force transfer element that acts cooperatively with the reinforcement layer. The heating element includes a heating wire and a shell encompassing the heating wire. The welding sleeve and the sheathing layer are fused by material originating from the welding sleeve, the sheathing layer and from the shell encompassing the heating wire. A welding sleeve for use in the coupling construction, as well as a method for producing a coupling construction are disclosed.
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