Multi-functional electric stepper motor assembly having increased motor torque
US6967425B1 · kind B1 · utility
0Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2004 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Aug 7, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/1732
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric stepper motor having increased motor torque includes a thru-hole, a rotor and a stator. The thru-hole allows use with a chamber and provides transport of hardware and elements into the chamber. A first and second pair of rotor cups separated by a non-magnetic spacer disc provide increased motor torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.