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US 11,107,604 B2Granted
Cable or flexible pipe with improved tensile elements
AssigneePrysmian S.p.A.
InventorsDonald Ray Parris, Massimo Bechis
Life of this patent
Estimating the term…
Abstract
A cable includes an elongated tensile element having a cross section area and including a fibre reinforced polymer composite core having an elastic modulus of at least 70 GPa and a sheath at least partially covering the composite core. The sheath is made of metal and is at least 30% of the cross section area of the tensile element.
Claims20
A cable comprising:
- a cable core;
- a protection layer around the cable core;
- a plurality of elongated tensile elements around the protection layer, the plurality of elongated tensile elements each having a cross section area and including a fibre reinforced polymer composite core and a sheath at least partially covering the composite core, the fibre reinforced polymer composite core having an elastic modulus of at least 70 GPa, the sheath being made of metal and being at least 30% of the cross section area of the tensile element.
A pipe comprising:
- a carcass;
- and
- a first armour layer and a second armour layer surrounding the carcass, each of the first armour layer and the second armour layer including a plurality of long-pitch helical windings of elongated tensile elements, an elongated tensile element having a cross section area and including a fibre reinforced polymer composite core and a metal sheath at least partially covering the fibre reinforced polymer composite core, the helical windings of the first armour layer extending along a first winding direction, and the helical windings of the second armour layer extending along a second winding direction that is opposite to the first winding direction.
Dependencies are inferred from the claim text.