Screw thread driving polyhedral ultrasonic motor

Details Screw thread driving polyhedral ultrasonic motor Screw thread driving polyhedral ultrasonic motor

2011-03-08

2011-03-08

Dougherty, Thomas M (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323060, C310S323170

Reexamination Certificate

active

07902723

ABSTRACT:
A screw thread driving polyhedral ultrasonic motor includes a stator, a rotor and multiple piezoelectric plates being bonded to the stator or the rotor. The stator and the rotor have screw threads matched with each other. The stator and the rotor are connected via the screw threads.

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