US PATENT SUBCLASS 73 / 480
.~ Gravitational moment turns rotor about spin axis

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

66  DF  ROTOR UNBALANCE {7}
480.~ Gravitational moment turns rotor about spin axis {1}
481  DF  .~.~> Ways

DEFINITION

Classification: 73/480

(under subclass 66) Subject matter wherein the rotor is mounted with its spin axis horizontal and any gravitational moment resulting from an unbalanced distribution of mass causes the rotor to turn about its normal rotational or spin axis.