Magnetic control switch
US9558898B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2014 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Dec 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2223/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contactless control switch that is resistant to influence from external magnetic fields is disclosed. The switch includes a switch housing, a button moveably mounted to the housing that has at least one protrusion formed on an underside thereof, a circuit board mounted to the housing and including at least one magnet sensor, and a magnet holder positioned adjacent each respective magnet sensor, the magnet holder housing a positive field magnet and a negative field magnet therein and being rotatably mounted to the housing. A respective protrusion interacts with the magnet holder responsive to an actuation of the button by a user, so as to position one of the positive field magnet and the negative field magnet proximate to its respective sensor and the other of the positive field magnet and the negative field magnet distal to its respective sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.