Isolation valve with valve in drain
US7681596B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2004 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | May 17, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87909
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid isolation valve having a valve body with a first fluid flow port, a second fluid flow port and a fluid drain port with a valve in the fluid drain port. The valve body also defines a fluid flow channel, a drain flow channel and a valve portion, wherein the valve portion is disposed in the valve body to be communicated with the first fluid flow port, the second fluid flow port and the fluid drain port A flow diversion device is also provided and is disposed within the valve portion. The flow diversion device is configurable between a first configuration and a second configuration, such that when the flow diversion device is in the first configuration the first fluid flow port is communicated with the second fluid flow port Consequently, when the flow diversion device is in the second configuration the first fluid flow port is communicated with the fluid drain port. The fluid flow can be decrease or stop by use of the valve within the fluid drain port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.