Helical apparatus for coupling submerged pipes
US4279544A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Oct 24, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L39/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Connecting means for connecting the ends of at least a pair of pipes, said pipe ends being immersed in water and one of the or each pair of pipe ends being mounted on a fixed structure and connected, e.g. to an oil well, and the other of the or each pair of pipes being mounted on a movable structure, e.g. a column, mounted for oscillatory movement relative to the fixed structure, comprises in respect of the or each pair of pipes a tube of a length greater than the maximum distance between the pipe ends and in a spiral and/or helical shape, wherein the tube is supported intermediate the ends thereof solely by means for correcting the buoyancy thereof to reduce the buoyancy to substantially zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.