US PATENT SUBCLASS 73 / 474
.~.~.~ One rotor end universally tiltable

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

66  DF  ROTOR UNBALANCE {7}
460  DF  .~ Dynamic (spinning) {4}
471  DF  .~.~ With vibratable mount feature {3}
474.~.~.~ One rotor end universally tiltable

DEFINITION

Classification: 73/474

(under subclass 471) Subject matter wherein there is means for mounting the rotor with one end of the rotor free to gyrate under unbalance, thus permitting the free end of the rotor to tilt universally. The axis of rotation is usually vertical.