Liquid drainage system
US8615825B2 · kind B2 · utility
7Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2009 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jan 31, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B29/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A liquid drainage system for a sanitary installation has a liquid level sensor for detecting the level of liquid in a drainage receptacle. The sensor employs non-contact sensing, for example an electric field, to detect the liquid level and controls the operating of a drainage pump depending on the detected liquid level. The drainage receptacle may for example be the gulley of a shower tray, or a manifold connected to two or more sinks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.