US PATENT SUBCLASS 152 / 425
.~.~.~.~.~.~ Casing interposed

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  DF  .~.~.~ With positive pump operating means {3}
423  DF  .~.~.~.~ Obstacle {1}
424  DF  .~.~.~.~.~ Ground {1}
425.~.~.~.~.~.~ Casing interposed {1}
426  DF  .~.~.~.~.~.~.~> Casing enclosed pump

DEFINITION

Classification: 152/425

The tire casing is interposed between the pump operating element on the rotating wheel and the ground, the ground serving as the operating obstacle.