US PATENT SUBCLASS 152 / 109
.~.~.~.~.~.~ Radial

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}
105  DF  .~.~.~.~ With separate annulus guide {1}
106  DF  .~.~.~.~.~ Combined drive {5}
109.~.~.~.~.~.~ Radial

DEFINITION

Classification: 152/109

In a spring wheel having a spring encircling rigid annulus supported by radial coil springs, with guide means and combined drive, the drive consists of fixed radially extended elements on the rigid annulus engaging an element on the wheel center, or vice versa.