Fluid level sensor
US7222528B2 · kind B2 · utility
5Cited by
25References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2005 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Mar 3, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/268
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid sensor arrangement (20) includes a sleeve (32) that is adapted to be placed within a container (24). A plurality of conductors (46, 48) and a channel member (50) within the sleeve cooperate to provide a measurement of conductivity of the fluid within the sleeve (32). The conductivity measurement provides an indication of a level of fluid within the container (24). A disclosed example includes a non-conductive channel member (50) having an opening or a channel (52) for directing selected portions of a conductivity field within the sleeve (32) between the conductors (46, 48) for making the conductivity determinations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.