Process for manufacturing a variable stiffness line and associated element
US5447390A · kind A · utility
7Cited by
4References
25Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 12, 1993 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Apr 12, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L9/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A process for manufacturing a line of variable stiffness over part of the length thereof and the associated element which allows the line to have the variable stiffness thereof is disclosed. The element is integrated during the manufacturing of the line or deposited thereafter around the line; the element consists of composite material underlayers in which the directions of the fibers have at least one component making a zero or a low-value angle with the axis of the pipe, and the layers end in a graded way. The process has application to the manufacturing of a riser base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.