Method and apparatus for circumferential interior treatment of pipe elbows
US7997955B2 · kind B2 · utility
1Cited by
10References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2008 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Jul 23, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C37/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for the circumferential interior treatment of pipe elbows, including a step of positioning a working member within a pipe elbow and moving the working member along a portion of a length of the pipe elbow between selected working positions, while concurrently manipulating the pitch and rotational positioning of the pipe elbow to maintain a concentric rotation of the pipe elbow about the working member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.