Minimum pressure and shutoff valve
US9303784B2 · kind B2 · utility
1Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2012 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jun 9, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8671
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for controlling a pressure drop of a fluid is disclosed. A sleeve includes a plurality of flow passages in a wall of the sleeve. A member slides relative to the sleeve to reveal at least a portion of the plurality of flow passages to control flow of the fluid through the flow passages. The plurality of flow passages are at azimuthally-and axially-staggered locations around the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.