Method and system for a linear actuator with stationary vertical magnets and coils
US7800470B2 · kind B2 · utility
5Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2008 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jul 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1692
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear actuating device contains a top magnet and a bottom magnet. The bottom magnet is axially aligned with the top magnet. The top magnet and the bottom magnet have opposing magnetization. A washer is sandwiched between the top magnet and the bottom magnet. A top coil is positioned within the top magnet. A bottom coil is positioned within the bottom magnet. A slug is slidably positioned within the top coil and bottom coil. An actuating member is integral with the slug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.