Freeze and backflow protection for a subterranean water flushing system
US7497228B2 · kind B2 · utility
7Cited by
54References
8Claims
0Family size
Inventors
Key dates
| Filing date | May 28, 2004 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | May 19, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86389
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A water flushing system for a pressurized subterranean water distribution system includes an inlet conduit for receiving pressurized water from the subterranean water distribution system; an outlet fluidly connected to the inlet conduit for discharging pressurized water in the inlet conduit downwardly towards a drain; and a control valve for controlling the flow of pressurized water in the inlet conduit. The water flushing system further includes one or more of the following features: a freeze protection assembly, a detachable coupling system, a dechlorination system, and a backflow prevention system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.