Adjustable window liner
US7299864B2 · kind B2 · utility
2Cited by
308References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Jun 4, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system for lining a junction between a main bore and an auxiliary bore includes a first tubing adapted to line at least a portion of the main bore. The first tubing has a lateral opening therein. A second tubing has a junction shield extending outward therefrom. The junction shield has a larger transverse dimension than the lateral opening and is adapted to contract to a smaller transverse dimension to pass through the lateral opening into the auxiliary bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.