US PATENT SUBCLASS 152 / 76
.~.~.~ Center secured

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.~.~.~ Center secured {2}
77  DF  .~.~.~.~> With separate annulus guide {1}
79  DF  .~.~.~.~> Reversely curved

DEFINITION

Classification: 152/76

The leaf spring supports for the spring encircling rigid annulus in the spring wheel have their centers positively secured in the fixed relation to said rigid annulus or to the wheel center. This subclass includes leaf springs which are additionally secured at their ends.

(1) Note. For similarly secured leaf springs in a spring tire, see this class, subclasses 255 and 272.

(2) Note. For wheels wherein the springs are not positively secured in place, see this class, subclass 69.