US PATENT SUBCLASS 152 / 15
.~.~.~.~ Cylinder and piston supported

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

1  DF  SPRING WHEELS {3}
5  DF  .~ Deformable ground engaging part {5}
13  DF  .~.~ With coil spring {1}
14  DF  .~.~.~ Radial {2}
15.~.~.~.~ Cylinder and piston supported

DEFINITION

Classification: 152/15

The radial coil springs providing the resiliency of the deformable ground engaging part of the spring wheel are each combined with a cylinder and piston, the coil being either enclosed within the cylinder or encircling the assembled cylinder and piston.