US PATENT SUBCLASS 152 / 80
.~.~.~ End 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}
80.~.~.~ End secured {5}
81  DF  .~.~.~.~> Single end
82  DF  .~.~.~.~> With separate annulus guide {1}
84  DF  .~.~.~.~> Oppositely curved pairs
85  DF  .~.~.~.~> Reversely curved springs
86  DF  .~.~.~.~> Arcuate

DEFINITION

Classification: 152/80

The leaf spring supports for the spring encircling rigid annulus in the spring wheel have their opposite ends positively secured in fixed relation to said rigid annulus and the wheel center, respectively.

(1) Note. For end secured leaf springs also secured at their centers, see this class, subclass 76 and indented subclasses.

(2) Note. For leaf springs secured to each other or to supports, see this class, subclass 70.

(3) Note. For similarly secured leaf springs in a spring

tire, see this class, subclasses 256 and 273.

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