Magnetic drive arrangement
US5994809A · kind A · utility
19Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Dec 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K49/102
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Three magnetically cooperating parts are movable relative to one another, one part being provided for connection to a drive shaft, one part being provided for connection to an output shaft, and one part being provided as a stationary part. A first part surrounds a second part, these parts having permanent magnets which alternately exhibit north poles and south poles along the circumference. The third part comprises a yoke surrounding the first part, which yoke serves as a magnetic return element, and which has magnetically conductive teeth at the inner side of the yoke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.