Patent ID: 9395022
Filing Date: 2016-07-19
CPC Classification: F16L,Y10T

Claim Text:
1. An unbonded flexible pipe having a length and a center axis along said length, the unbonded flexible pipe comprising an internal sealing sheath around said center axis, a carcass arranged inside said internal sealing sheath, and at least one armor arranged around the internal sealing sheath, said carcass is formed by a plurality of not directly interlocked carcass reinforcement element windings along the length of said unbonded flexible pipe wherein said carcass reinforcement element windings are adjacent to a polymer structure, which polymer structure locks said carcass reinforcement element windings relative to each other, wherein each of said carcass reinforcement element windings comprises at least one channel arranged to engage with the polymer structure to lock said plurality of carcass reinforcement element windings mechanically to said polymer structure to prevent relative axial movement therebetween.