Rotary valve position indicator device and method for indicating the position of a rotary valve
US8763637B2 · kind B2 · utility
16Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2010 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Nov 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8242
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary valve position indicator utilizes a magnet keyed to a shaft, and a magnetic field sensor mounted beside the magnet, to indicate the angular position of the shaft. A magnetic pole sensor detects the initial polarity of the magnet during setup to determine how to correlate the output readings of the magnetic field sensor with the position of the valve. The sensors are located so they permit the shaft to extend through to a mechanical visual indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.