Pinch valve control system for water line isolation and method
US5131423A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Oct 25, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87877
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pinch valve control system for regulating the flow of water through the water distribution network of a building. Remote-controlled, fluid-operated pinch valves are spaced at various locations throughout the water distribution network of the building and may be selectively operated from a remote station to stop the flow of water in any pipe throughout the building's water distribution network. The use of pinch valves permits water flow to be increased or decreased gradually and reduces or eliminates water hammer. The pinch valve is operated by compressed fluid which enters the sleeve around the pinch valve to stop the flow of water in the pipe. To resume the water flow, the fluid in the pinch valve is released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.