US PATENT SUBCLASS 152 / 419
.~.~.~ With positive pump operating means

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
415  DF  .~ Inflating devices {5}
418  DF  .~.~ Wheel carried supply {1}
419.~.~.~ With positive pump operating means {3}
420  DF  .~.~.~.~> Gearing
421  DF  .~.~.~.~> Cam {1}
423  DF  .~.~.~.~> Obstacle {1}

DEFINITION

Classification: 152/419

Devices in which the air supply source carried by the wheel is a pump and means are provided for positive operation thereof.