Noise reduction motor design and method
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United States of America Patent
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Feb 14, 2006
Grant Date -
N/A
app pub date -
May 29, 2002
filing date -
Mar 6, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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