Flexible pipe with wire or strip winding for maintaining armours
US6691743B2 · kind B2 · utility
36Cited by
16References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 10, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Oct 10, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/083
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flexible tubular pipe having, from the inside outwards, at least, a carcass of an interlocked metal strip, an internal sealing sheath, a cylindrical pressure vault of a winding of an interlocked profiled metal wire wound in a helix with a short pitch, at least one ply of tensile armor wires wound with a long pitch, a wire wound with a short pitch over the ply of armor wires, the wires having a deformable sheath that partially penetrates the gaps between the windings in the at least one ply of armor wires, and an external protective sealing sheath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.