Hollow core electric motor
US7557476B2 · kind B2 · utility
1Cited by
3References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2006 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jun 16, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/187
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The disclosed system, device and method for an electric motor generally includes a hollow shaft having a first end and a second end. An electromagnet is coupled to the hollow shaft, where the electromagnet is suitably configured to emit an electromagnetic field, and where the electromagnet is disposed between the first end and the second end of the hollow shaft. A drum substantially encases the electromagnet, where the drum is coupled to rotate about an axis of the hollow shaft in response to the electromagnetic field emitted by the electromagnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.