Levitation magnetic actuator
US7834727B2 · kind B2 · utility
2Cited by
7References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 15, 2004 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Jul 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This is a magnetic actuator including a mobile magnetic portion (20), a fixed magnetic portion (10) provided with at least two attraction areas (11, 12) for the mobile magnetic portion (20), and means (30) for triggering the displacement of the mobile magnetic portion (20), the mobile magnetic portion (20) being in levitation when it is not in contact with an attraction area (11, 12). The mobile magnetic portion (20) includes a magnet-based part (200) with reduced magnet weight, this part (200) having an overall volume, and a mass which is less than the one it would have if its overall volume was totally occupied by the magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.