Valve assembly
US7552906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2006 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Nov 19, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
There is provided a valve assembly with an inlet passage and an outlet passage in communication with a valve chamber, a diaphragm mounted at the valve chamber for movement between a closed position, substantially preventing the flow of fluid from the inlet passage to the outlet passage, and an opened position, defining a path of fluid flow between the inlet passage and the outlet passage, and a pressure chamber disposed in the valve chamber above the diaphragm for retaining fluid pressure to control the diaphragm position. The valve assembly provides improved support for the diaphragm at an outlet aperture of the pressure chamber, air bleed from the pressure chamber, and upstream shutoff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.