Resistant flexible pipe comprising sealing sleeve with limited creep
US6354333B1 · kind B1 · utility
46Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Dec 12, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tubular flexible pipe which from the inside outward includes an inner sealing sheath of polymer, a cylindrical pressure vault comprised of a helical wire winding with gaps between the windings, perhaps a wound tensile armoring layer and a scaling outer sheath. The vault includes an elongated masking element, at least partially masking the gaps between the windings of the wire and being at the inner sheath, The masking element is a wire helically coiled in a recess at the inner face of the vault or is an axial extension of the vault wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.