192 clutches and power-stop control – Clutches – Operators
Reexamination Certificate
2005-11-15
2005-11-15
Bonck, Rodney H. (Department: 3681)
192 clutches and power-stop control
Clutches
Operators
C192S084100, C310S325000, C310S369000
Reexamination Certificate
active
06964327
ABSTRACT:
An ultrasonic clutch includes a driving element, a driven element and at least one alternating current (AC) power source. The driving element and the driven element are connected to a shaft of a driving device and an output axle of a loading, respectively. At least one of the driving element and the driven element is a piezoelectric device. When at least one of the driving element and the driven element is electrically connected to an AC power source, the near-field acoustic levitation, generated from the flexural vibration of the piezoelectric resonator above the piezoelectric resonator, occurs to push the driven element away from the driving element. Thus, the output shaft of the loading does not rotate with the axle of the driving device.
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“Development of an Ultrasonic Clutch”, Koyama, T. et al., 2003, http://www.google.com/search?q=cache:XYmJnm3yAdOJ:www.ieee-uffc.org/2003/Hawaii03/Abstracts/4F.pdf++%22ultrasonic+clutch%22&hl=en&ie=UTF-8.
Chang Kuo-Tsi
Ouyang Min-Shen
Bonck Rodney H.
Rosenberg , Klein & Lee
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