Optical proximity switch
US8456271B1 · kind B1 · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2012 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Apr 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/94021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical proximity switch includes a potentiometer for setting a switching point and supported for rotation through multiple turns, a crosswheel supported for rotation and including a visible position index visible, and a cam drive rotatably coupled to the potentiometer and the crosswheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.