Diaphragm-sealed valve with process purging groove
US7931043B2 · kind B2 · utility
7Cited by
19References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2008 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Oct 6, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86919
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A diaphragm-sealed valve provided with a valve cap and a valve body, a diaphragm and a plunger assembly. The diaphragm is compressibly positioned between the valve cap and the valve body. The valve body comprises a process purging channel extending along a main recess of the valve body, under a pre-formed deformation of the diaphragm. A process purging inlet passage and a process purging outlet passage, both opening on the process purging channel, allow for a purging gas to flow in the process purging channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.