US PATENT SUBCLASS 152 / 73
.~.~.~ Cylindrical units


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}
73.~.~.~ Cylindrical units


DEFINITION

Classification: 152/73

Each of the leaf spring supports for the spring encircling rigid annulus in the spring wheel consists of one or more springs formed into an element with a substantially cylindrical periphery. This includes cylindrical springs which extend about the wheel.

(1) Note. For continuous or endless springs of irregular formation, see this class, subclass 69.

(2) Note. Compare this class, subclass 20.