US PATENT SUBCLASS 152 / 42
.~.~.~ Cylindrical

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}
42.~.~.~ Cylindrical {1}
43  DF  .~.~.~.~> Transverse

DEFINITION

Classification: 152/42

The rubber springs supporting the spring encircling rigid annulus in the spring wheel are cylindrical in the ordinary sense of the term and have flat ends. They may be tubular and may surround bolts or spokes.