US PATENT SUBCLASS 152 / 5
.~ Deformable ground engaging part

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

1  DF  SPRING WHEELS {3}
5.~ Deformable ground engaging part {5}
6  DF  .~.~> With plural spring types
7  DF  .~.~> With rubber spring
8  DF  .~.~> With pneumatic spring {1}
11  DF  .~.~> With leaf spring {1}
13  DF  .~.~> With coil spring {1}

DEFINITION

Classification: 152/5

Spring wheels in which the portion bearing upon the roadway yields locally under load so that the wheel as a whole does not retain its circular form.

SEE OR SEARCH CLASS

172, Earth Working,

543, for a rolling earth working tool with spring teeth and subclass 544 for a rolling earth working tool with spring mounted teeth.

305, Wheel Substitutes for Land Vehicles,

6, for spring biased elements movably mounted on the rim of a wheel forming ground engaging feet as the wheel rotates.