Flexible tubular pipe
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 11, 2005
Grant Date -
Apr 22, 2004
app pub date -
Nov 24, 2003
filing date -
Nov 24, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A flexible tubular pipe comprising at least one metal profile spiralled in a helix about a longitudinal axis of the flexible pipe. The profile consists of a metal strip, each turn of which comprises two separate box sections which are obtained by bending the said strip so that the free edges of the strip are turned down between the two box sections and are in contact with a strip portion provided on an upraised bulge formed between the two box sections. The contact portion ties approximately along the neutral fiber of the profile. Each box section has a trapezoidal shape. Connectors above or below the profile connect windings. The edges of the connectors extend into the bulges. Profiling or extra elements are provided for the connectors.
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