Apparatus and method for lined pipe welding
US11572967B2 · kind B2 · utility
3Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | May 22, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L13/013
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A joining sleeve configured to connect internal liners of two internally lined pipe sections across a welded pipe section joint and a method of use is disclosed. The joining sleeve comprises a sleeve body having a first end and a second end, the first and second ends configured to couple with opposing ends of first and second internal liners respectively. A collar is disposed around the outer surface of the sleeve body, the collar having a first retracted condition in which it has a first outer diameter, and a second expanded condition in which it has a second outer diameter, larger than the first outer diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.