Position-sensing and motion verification assembly for a motor-driven mechanism
US5220161A · kind A · utility
6Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/282
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A position sensing and motion verification assembly for a motor-driven mechanism includes a base member on which a sensor pattern is fabricated. The sensor pattern includes a predetermined orientation of tabs and notches of varying widths. A home position is defined in the sensor pattern and the polarity of the pattern is inverted on opposite sides of the home position. A single sensor such as an optical interrupter is mounted in the assembly in a position relative to the sensor pattern to sense the tabs and notches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.