Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-09-12
2006-09-12
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
07105984
ABSTRACT:
A present invention provides a drive unit and an operating apparatus each having a simple structure and therefore having an advantage to be miniaturized, which can obtain a large drive torque. A drive unit1of the present invention includes a rotor4and a plurality of actuators5A,5B for driving the rotor4. Each of the plurality of actuators5A,5B includes an electro-mechanical converting element which applies driving force to the rotor4when electric power is applied thereto. In this case, the rotor4is driven in a cooperation manner in which the plurality of actuators5A,5B are cooperatively driven. Further, the electro-mechanical converting element is a vibrating element50containing a piezoelectric element.
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Addison Karen Beth
Harness & Dickey & Pierce P.L.C.
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