Liquid level detector
US9772213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Feb 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid level detector may include a rotator fixed to an arm, a magnet fixed to the rotator, and a supporter rotatably supporting the rotator. The supporter may include a body, and an outer circumference wall disposed along a rotation direction of the arm on an outer circumference side of the magnet. The rotator may include a cover covering an end part of the outer circumference wall, and an opposing wall opposing at least one of an inner circumference surface and an outer circumference surface of the outer circumference wall. A first clearance between the supporter and the magnet may communicate with an outer space via a second clearance between the outer circumference wall and the cover and a third clearance between the outer circumference wall and the opposing wall. The first clearance may be larger than at least one of the second clearance and the third clearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.