US PATENT SUBCLASS 152 / 47
.~.~.~ Annular

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}
40  DF  .~.~ Rubber spring {4}
47.~.~.~ Annular {4}
48  DF  .~.~.~.~> Rigid annulus enclosing
49  DF  .~.~.~.~> Plural
50  DF  .~.~.~.~> With separate annulus guide {1}
52  DF  .~.~.~.~> With drive

DEFINITION

Classification: 152/47

The rubber spring supporting the spring encircling rigid annulus in the spring wheel forms a continuous ring about the wheel center.