US PATENT SUBCLASS 152 / 85
.~.~.~.~ Reversely curved springs

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  DF  .~.~.~ End secured {5}
85.~.~.~.~ Reversely curved springs

DEFINITION

Classification: 152/85

Each of the end secured leaf spring supports for the spring encircling rigid annulus in the spring wheel is reversely curved. This subclass includes springs having straight portions.

(1) Note. For such springs arranged in pairs with opposite curvature, see this class, subclass 84.