Flexible liner for drilled drainhole deployment
US7766082B2 · kind B2 · utility
2Cited by
16References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2008 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Apr 16, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A liner for inserting into a drain hole, comprising a resilient tubular member with a central bore; wherein the tubular member is formed from a first continuous helically wound wire provided with a passageway to allow fluid communication across the member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.