US PATENT SUBCLASS 152 / 78
.~.~.~.~.~ Combined drive

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}
69  DF  .~.~ Leaf spring {8}
76  DF  .~.~.~ Center secured {2}
77  DF  .~.~.~.~ With separate annulus guide {1}
78.~.~.~.~.~ Combined drive

DEFINITION

Classification: 152/78

In a spring wheel having a spring encircling rigid annulus supported by center secured leaf springs, with guide means, said rigid annulus is held against rotation relative to the wheel center by means other than said springs, or in addition thereto.