Control element assembly position verification apparatus
US6380734B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1998 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Oct 6, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position verification apparatus comprising a movable member disposed within and movable with respect to a housing containing the movable member, a means for generating a magnetic field within the housing, a first magnetically responsive means for sensing the position of the movable member and outputting a signal indicative of the position of the movable member, a second magnetically responsive means for sensing the presence of the movable member and outputting a signal indicative of the position of the movable member and a means for comparing the signal output from the first magnetically responsive means and the signal output from the second magnetically responsive means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.