Fluid level sensing switch
US6446506B1 · kind B1 · utility
4Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Dec 29, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a fluid level sensing switch for use with a device having a fluid reservoir. The switch is float activated and closes a circuit so as to change an operating parameter in the event that the volume of fluid in the reservoir falls below a predetermined level. Once the volume of fluid is restored to a predetermined safe level, the switch automatically resets to an open position to permit normal operation of device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.