Undersea pipe including an internal liner
US7722085B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2005 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Jun 15, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L58/1036
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe (1) comprising at least two pipe elements (11, 12) having internal liners of plastic material (2), the pipe elements being assembled end to end, in which the ends of the two pipe elements are welded (5) together and in which the ends of the internal liners (2) of plastic material of each of the pipe elements are joined together by a tubular junction sleeve (3) of material that withstands corrosion and that co-operate with the ends (2a, 2b) of the liners by mutual engagement via a notched surface (32), said liner ends (2) presenting reduced thickness (2a, 2b) and being bonded against the steel wall of said pipe by adhesive (4a, 4b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.