Electrical sensing of valve actuator position
US6242909A · kind A · utility
32Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Oct 13, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8275
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A visual position indicator has a stator and a rotor with angularly displaced eccentricities for engaging corresponding spring biased actuators with magnets. Depending on the rotor position relative to the stator, one or more of the actuators is moved to a position whereat the field of its respective magnet can operate a magnetic switch disposed in a hermetically sealed housing. A decoder connected to the switches can produce a signal indicative of rotor position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.