US PATENT SUBCLASS 310 / 323.02
.~.~.~.~ Motor producing continual motion

Current as of: June, 1999
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310 /   HD   ELECTRICAL GENERATOR OR MOTOR STRUCTURE

300  DF  NON-DYNAMOELECTRIC {4}
311  DF  .~ Piezoelectric elements and devices {17}
321  DF  .~.~ Combined with resonant structure {4}
323.01  DF  .~.~.~ Direct mechanical coupling {5}
323.02.~.~.~.~ Motor producing continual motion {3}
323.03  DF  .~.~.~.~.~> Traveling wave motor {3}
323.12  DF  .~.~.~.~.~> Langevin or pencil type motor {1}
323.16  DF  .~.~.~.~.~> Eliptical motion at fixed point (i.e., walking) or Ratchet and Pawl motor

DEFINITION

Classification: 310/323.02

Motor producing continual motion:

(under subclass 323.01) Subject matter wherein the piezoelectric element expands and contract cyclically and repeatedly to produce motion of an armature or rotor along a single direction.

(1) Note. Motion can be linear or rotary.