Contactless switch
US9318280B2 · kind B2 · utility
4Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2014 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Sep 26, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/9653
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switch includes a button which is connected to a ring-shaped permanent magnet that is magnetized along a z-axis, a guide member made from an non-ferromagnetic material inside which the button and the ring-shaped permanent magnet are arranged so as to be moveable along the z-axis, as well as at least one sensor that has a sensitive area that is arranged inside the ring-shaped permanent magnet and that is configured to measure a change in a magnetic field in the radial direction within a x-y-plane, wherein the x-axis and the y-axis lie orthogonally to the z-axis, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.