Magnetic sensing device
US9885554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2013 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | May 25, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/0272
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic sensing device including a U-shaped magnet with a pair of legs and a base defining a first interior channel and a distal plane. A sensor assembly in the first interior channel includes a sensor that extends above the distal plane. The magnet generates a first region of low or no flux above the distal plane in a first position of the magnet, a second region of low or no magnetic flux in the interior channel in a second position of the magnet, and a third region of magnetic flux above the distal plane in the second position of the magnet which causes the sensor to activate a control signal. The base includes steps and a second interior channel that opens into the first interior channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.