Pipes and tubular conduits – Flexible – Spirally wound material
Reexamination Certificate
2004-09-24
2009-02-24
Hook, James F (Department: 3754)
Pipes and tubular conduits
Flexible
Spirally wound material
C138S121000, C138S131000, C138S139000
Reexamination Certificate
active
07493918
ABSTRACT:
The present invention relates to fluid conduit (1) suitable for use in the transportation of working fluids to a wellhead or the like from a topside location or the like. The fluid conduit (1) is suitable for use in a multi-conduit umbilical. The conduit comprises an inner flexible collapse resistant hose (2) surrounded by a hose liner (4), and at least one pair of helically contra-wound high tensile wires (6a,6b). Each turn of each wire (6a,6b) is in substantially close contact with adjacent turns thereof. A multi-conduit umbilical comprising a plurality of the fluid conduits bundled together and provided with an outer sheath is also described.
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Hook James F
Oceaneering International Services Ltd.
Young & Basile
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