Fluid transfer pipe with corrugated portion(s) and method for manufacturing same
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United States of America Patent
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Mar 31, 2015
Grant Date -
Apr 12, 2012
app pub date -
Sep 12, 2011
filing date -
Sep 14, 2010
priority date (Note) -
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Abstract
The invention provides a fluid transfer pipe for filling a cooling circuit of a motor vehicle, and the method for manufacturing said pipe. This pipe includes at least one corrugated bendable portion based on at least one thermoplastic material and which includes a succession of radial reliefs axially spaced so as to form hollows between them, each relief having two frontal regions linked together by an intermediate region, the frontal regions of each relief each having one and the same overall polygonal contour defining at least three straight sections forming flats for this relief and interlinked by rounded sections forming bulges, and the contours of the successive reliefs being adapted to allow for the stripping of the corrugated portion from two hemicylindrical shells of a mold along a single axial stripping plane.
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