Patent ID: 6691743
Filing Date: 2004-02-17
Classification: F16L

Abstract:
A flexible tubular pipe having an inside and an outside, the pipe comprising from the inside outward to the outside;a sealed structural assembly resistant to radial forces, the structural assembly comprising: an internal sealing sheath of a material to withstand chemical action of a fluid to be transported inside the internal sealing sheath of the pipe; and a winding of a metal element wound in a helix and having a short pitch; at least one ply of tensile armor wires wound with a long pitch such that the windings of at least one ply of armor wires provides gaps between the windings of the armor wires; at least one strong, continuous, elongate element wound helically and with a short pitch and directly around the at least one armor ply, so that the elongate element is partially inserted into the gaps between the windings of the armor wires of the at least one ply; and an external sheath.