US PATENT SUBCLASS 73 / 670
.~.~.~ Treadmill

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

570  DF  VIBRATION {10}
662  DF  .~ Vibrator {4}
669  DF  .~.~ Vehicle shaker {1}
670.~.~.~ Treadmill

DEFINITION

Classification: 73/670

Treadmill:

(under subclass 669) Subject matter wherein at least one wheel of a vehicle furnishes rotating power directly to at least one rotatable vehicle support, e.g., a pulley, wheel, or belt, the support having means for vibrating itself, and thus the vehicle, or the rotatable vehicle support, is self-powered and thus vibrates the vehicle accordingly.

(1) Note. Sometimes all of the vehicle wheels may be in contact with rotating belts, and at other times the vehicle wheels may be in contact with the vibrator support wheels.