Insulating inserts for field joints of coated rigid pipelines
US11781700B2 · kind B2 · utility
0Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2020 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | May 8, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49982
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An insulating insert is positioned around a field joint of a pipeline to insulate the field joint. The insert comprises a longitudinal series of annular or part-annular filler segments of insulating material, curved about a longitudinal axis, that are each joined to one or more adjacent segments of the series by at least one link. The links may be webs, rods or articulated links. The links are flexible relative to the segments to facilitate bending of the insert along its length by enabling relative angular displacement between adjacent segments of the series.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.