Water level sensor
US6810732B2 · kind B2 · utility
27Cited by
7References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2001 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Oct 2, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is a water level sensor. The water level sensor includes a reference electrode comprised of a plurality of electrode plates to detect electric conductivity of water filling a space between the electrode plates of the reference electrode. A measuring electrode is comprised of a plurality of electrode plates, which are extended along a length of a water tub to be longer than the electrode plates of the reference electrode and spaced apart from the electrode plates of the reference electrode to detect electric conductivity of water filling a space between the electrode plates of the measuring electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.