Noise reduction motor design and method
USRE38977E1 · kind E1 · reissue
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4Claims
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Key dates
| Filing date | May 29, 2002 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | May 29, 2022 |
Classification
- Technology area (CPC —)General
Abstract
An electric motor design and method useful to reduce noise/vibration generated by a rotor/shaft assembly is provided whereby the motor has a stator which has an axial length and a rotor which has an axial length less than the axial length of the stator such that when the rotor rotates within the motor, the rotor is axially fixed by a stator field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.