Connections for subsea pipe-in-pipe structures
US9857011B2 · kind B2 · utility
1Cited by
7References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2013 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Jan 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49879
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A reelable connection between facing ends of opposed pipe-in-pipe sections in which an end wall connects inner and outer pipes of each section to seal an end of an annular space defined between those pipes is disclosed. In each section, the inner pipe protrudes beyond the end wall and the outer pipe and is joined to an inner pipe of the opposed section, leaving opposed ends of the outer pipes of those sections spaced from each other. An insert positioned between the opposed ends of the outer pipes maintains the outer pipe diameter from one section to the other section across the connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.