Double seat valve with isolated vent chambers
US9328837B2 · kind B2 · utility
0Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Sep 16, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4245
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve comprising sealing members configured to allow the valve to achieve an open position, a closed position, lower seat clean position and an upper seat clean position is described. A method including opening a valve, closing a valve, moving the valve to a lower seat clean position, and moving the valve to an upper seat clean position is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.