Liquid level detector
US3997744A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Mar 21, 1974 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Mar 21, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/64
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Liquid level detectors known in the art are, for the most part, designed so that they are mounted in a vertical direction to the liquid level. However, with the recent trend toward using liquid containers of more complicated shapes, there has existed a need for a liquid level detector of a type that can be mounted in a horizontal direction with respect to the liquid level. Moreover, there has existed a need for a liquid level detector of a type which requires as small a mounting opening as possible. In accordance with the present invention, there is provided a liquid level detector in which a permanent magnet is fixedly mounted on the central portion of a float having a long and slender shape, e.g., elliptic or rectangular shape and being enabled to slide along a case containing a reed switch therein and to positively bring the reed switch into operation to detect the liquid level, and which thus meets the above-mentioned requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.