US PATENT SUBCLASS 180 / 255
.~.~.~ Pivotable portion of means has additional structure of gearlike nature in driving engagement with corresponding structure on wheel

Current as of: June, 1999
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180 /   HD   MOTOR VEHICLES

252  DF  HAVING AT LEAST ONE WHEEL BOTH DRIVEN AND STEERABLE {4}
253  DF  .~ Steerable wheel has exclusive axis of pivot (i.e., stub-axle type) {1}
254  DF  .~.~ Including flexible, axially rotatable means having one portion fixed to vehicle and another portion pivotable with wheel for transmitting drive thereto {5}
255.~.~.~ Pivotable portion of means has additional structure of gearlike nature in driving engagement with corresponding structure on wheel

DEFINITION

Classification: 180/255

Pivotable portion of means has additional structure of gearlike nature in driving engagement with corresponding

structure on wheel:

(under subclass 254) Vehicle wherein that portion of the flexible, axially rotatable means which is pivotable with the steerable wheel, and the steerable wheel, are each provided with structure in the nature of a gear, which structures are in drive-transmitting engagement, or are otherwise drivingly connected, with one another.

(1) Note. "Structure in the nature of a gear" includes, for example, a toothed gear for intermeshing with another such gear, a wheel having a friction surface on its periphery for engaging another wheel of like nature, a sprocket for driving interconnection with another sprocket by means of a chain, etc.