Sewage flushing
US8763630B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 5, 2009 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Apr 5, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7504
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sewer flushing device 20 for location in a sewage system. The device comprises a housing 21 adapted for location in a sewage flow path 14 and a gate 22 pivotally supported on the housing 21 and movable between open and closed positions. The gate is biased towards its closed position so as to inhibit the flow of sewage and thereby cause a build up of sewage. In this way, when the sewage upstream of the gate 22 reaches a predetermined level the gate is urged to its open position such that a flushing pulse of sewage flows downstream.There may also be provided a locating device 23 for holding the housing 21 in the required position within the sewage system. The locating device may comprise a sewer engaging portion 51,52 adapted to locate in a sewer channel 12,14, and a housing connector 54 adapted to connect to the housing 21.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.