Pivoted float liquid level sensor having a magnetically actuated switch
US8966974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Oct 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid level sensor for use with a container, including a housing with a body defining an interior volume, a switch actuated by an applied magnetic flux field to a closed position, the switch being disposed within the interior volume of the housing, and a float including a body, a first end and a second end opposite the first end. A pivot assembly includes a magnet and couples the housing and the first end of the float such that the float is pivotable about the pivot assembly between a first position and a second position, and a shunt is disposed within the first end of the float body. The shunt is disposed between the magnet and the switch in the first position of the float, thereby shielding the switch from the magnetic flux of the magnet such that the switch is in the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.