Plastic control valve
US5002086A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1990 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | May 11, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/5762
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A free draining, corrosive resistent valve for regulating the flow of corrosive fluids therethrough includes a plastic valve housing. An inlet passage extends into the housing and upwardly therein terminating in a valve seat. An inclined panel surrounds the inlet passage below the valve seat. An outlet passage extends from the lower most portion of the inclined panel through the housing. A plastic valve poppet is located above the seat having a diaphragm therearound with an upwardly extending stem. A plastic retainer is located above the diaphragm into which the stem extends. The retainer is adapted for affixing the diaphragm is a sealing relationship to the valve housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.