ELECTRIC MOTOR WITH ULTRASONIC NON-CONTACT BEARING
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United States of America Patent
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Issued Date -
Nov 18, 2010
app pub date -
May 17, 2010
filing date -
May 15, 2009
priority date (Note) -
Abandoned
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Abstract
A piezoelectric ultrasonic suspension in gas for creating a contactless bearing support of a precision instrument and specifically an electromagnetic motor. A gas micro-film of elevated pressure is formed between the adjoining surfaces of a spherical saddle and a spherical trunnion. The spherical trunnion is spaced apart from the spherical surface of a saddle by a gas micro-film when the piezoresonator is excited.
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