Method of forming a lined tubular member
US7926160B2 · kind B2 · utility
25Cited by
40References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2005 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Nov 19, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4994
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A corrugated conduit and method of expanding to form a lined tubular member are described. In some embodiments, a corrugated conduit may be expandable. The corrugated conduit may be inserted into a tubular member and hydraulically or otherwise expanded against walls of the tubular member to strengthen and/or seal the tubular member when the corrugated conduit is expanded in the tubular member. In certain embodiments, the tubular member is a drill stem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.