US PATENT SUBCLASS 152 / 69
.~.~ Leaf spring

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.~.~ Leaf spring {8}
70  DF  .~.~.~> With braces
71  DF  .~.~.~> Link connected
72  DF  .~.~.~> Variously arranged
73  DF  .~.~.~> Cylindrical units
74  DF  .~.~.~> Transverse
75  DF  .~.~.~> Straight, radial or tangential
76  DF  .~.~.~> Center secured {2}
80  DF  .~.~.~> End secured {5}

DEFINITION

Classification: 152/69

The spring encircling rigid annulus in the spring wheel is resiliently supported against radial motion relative to the wheel center by leaf springs.