US PATENT SUBCLASS 152 / 101
.~.~.~.~.~ With separate drive

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

1  DF  SPRING WHEELS {3}
17  DF  .~ Spring encircling rigid annulus {10}
87  DF  .~.~ Coil spring {7}
97  DF  .~.~.~ Radial {6}
100  DF  .~.~.~.~ Cylinder and piston supported {2}
101.~.~.~.~.~ With separate drive

DEFINITION

Classification: 152/101

In a spring wheel having a spring encircling rigid annulus supported by radial coil springs with cylinders and pistons,

said rigid annulus is held against rotation relative to the wheel center by means other than the springs, cylinders and pistons, or in addition to such springs, cylinders or pistons.