Density sensing, solid state, pump switching system
US7615954B1 · kind B1 · utility
4Cited by
13References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 4, 2006 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Sep 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/296
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pump control system incorporates one or more solid state level sensors as well as solid state pump control switches. Elimination of mechanical or electrode-mechanical parts by using ultrasonically based fluid level sensors as well as solid state switches for motor control enhances reliability and results in reduced power consumption and dissipation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.