Flexible pipeline having a dual-layer sheath of polymer
US6455118B1 · kind B1 · utility
8Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1998 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Dec 10, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a reinforced flexible pipeline for conveying an effluent, the pipeline having a sheath (2, 3) of polymer, the internal surface of which is in contact with the effluent and the external surface of which is in contact with reinforcing wires (4) when under pressure.The sheath has an internal layer (2) of polymer or copolymer with no external plasticizer and an external layer (3) of polymer possibly containing plasticizers so as to obtain given mechanical characteristics.Application of the pipeline proposed by the invention for conveying an effluent under pressure and at high temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.