Hydraulic sleeve valve with position indication, alignment, and bypass
US7845416B2 · kind B2 · utility
14Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2009 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Feb 16, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic sleeve valve that includes a valve position indication system that provides an indication that the valve has reached a predetermined position, such as, for example, the fully opened or fully closed condition. The hydraulic sleeve valve may include a bypass relief system and may also provide a valve control fluid circulation function to filter or otherwise manipulate the control fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.