Control valve with axial sealing
US6000432A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86686
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A two-way control valve arrangement for selectively opening a first passageway to either one of a second passageway and a third passageway, wherein a housing structure is provided having a valve body opening with circular sidewall and a base portion intersecting the first, second and third passageways; a valve body secured within the valve body opening, and a piston with a plunged at the end thereof reciprocally disposed within a piston cylinder extending axially through the valve body, the piston being reciprocal to either bias against the valve body to close the piston cylinder therethrough and accordingly the second passageway, or to bias against the base portion of the valve body opening to close the third passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.