Electric linear motor, and secondary for a linear motor
US6930415B2 · kind B2 · utility
1Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2004 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Apr 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electric linear motor includes a rotor as primary; and a secondary which is spaced from the rotor to define an air gap therebetween for interaction between the rotor and the secondary. The secondary has a carrier with electrically and/or magnetic driving elements, a cover for protection of the carrier against contamination or damage, and a support unit which supports the cover for movement relative to the carrier. Thus, contaminated regions of the cover can be removed from the surface of the secondary and cleaned by a wiper element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.