Solenoid actuator
US5272458A · kind A · utility
33Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1989 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Oct 17, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2051/2218
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solenoid actuator having a slider element with a permanent magnet is provided. When the electromagnet is activated, the electromagnet repels the permanent magnet, moving the permanent magnet of the slider toward a second position under the influence of a mass of ferro-magnetic material located adjacent the second position. In a preferred embodiment, the poles of the slider permanent magnet are co-axially aligned with the coil and core of the electromagnet. In an alternative embodiment, the mass of ferromagnetic material may be eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.