Rod-shaped element for liquid level detection and corresponding device for liquid level detection
US7207219B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2005 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/1025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A metal rod-shaped element for a liquid detecting device is essentially cylindrical and has first and second ends. In at least one length, starting from the second end, the element has an isolating coating and an electrode strip is provided which extends along a longitudinal axis of the element. The electrode strip is not electrically connected to the element and the strip comprises a high impedance material. Two flattened sections are provided where the metal of the element lies openly. In a cross sectional view the electrode strip is situated between the two flattened sections. A first contact mechanism is provided in order to establish, in the range of the first end, an electrical contact to the rod-shaped element, and a second contact mechanism is provided in order to establish, within the range of the first end, an electrical contact to the electrode strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.