Controlling a vacuum sewer system
US10584473B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2017 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Mar 17, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F1/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An example system includes a sewage pit; a suction pipe extending into the sewage pit; and a valve between the sewage pit and a vacuum pipe having a vacuum pressure. The valve is controllable to close or to open to allow content to flow from the sewage pit, through the suction pipe, to the vacuum pipe. A sensor tube extends into the sewage pit to sense a fill level of the sewage pit. The suction pipe is configured as a back-up to the sensor tube for sensing the fill level of the sewage pit. The valve is controllable based on a pressure in at least one of the suction pipe or the sensor tube meeting or exceeding a predefined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.