US PATENT SUBCLASS 152 / 24
.~.~.~.~.~ Double thrust

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}
21  DF  .~.~ Lateral thrust or tension {3}
22  DF  .~.~.~ Combined spring and friction {1}
23  DF  .~.~.~.~ Coil springs {1}
24.~.~.~.~.~ Double thrust

DEFINITION

Classification: 152/24

The lateral thrust or tension mechanism supporting the spring encircling rigid annulus comprises combined coil springs and friction devices so arranged that the springs are acted upon in both directions at once transversely of the wheel.