US PATENT SUBCLASS 152 / 60
.~.~.~.~.~ Combined drive

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}
53  DF  .~.~ Pneumatic spring {3}
56  DF  .~.~.~ Annular {4}
59  DF  .~.~.~.~ With separate annulus guide {1}
60.~.~.~.~.~ Combined drive {6}
61  DF  .~.~.~.~.~.~> Spring
62  DF  .~.~.~.~.~.~> Links
63  DF  .~.~.~.~.~.~> Radial
64  DF  .~.~.~.~.~.~> Studs or lugs
65  DF  .~.~.~.~.~.~> Through bolts
66  DF  .~.~.~.~.~.~> Anti-creep

DEFINITION

Classification: 152/60

In a spring wheel having a spring encircling rigid annulus supported by an annular pneumatic spring and having guide means, said rigid annulus is held against rotation relative to the wheel center, either by modification of wheel or spring elements or by additional means. This subclass includes drive through the springs.

(1) Note. For such devices wherein the drive is by means of friction, cement or vulcanization and involves no modification of wheel or spring elements, see this class, subclasses 56-59.