US PATENT SUBCLASS 180 / 258
.~.~.~ Pivotable portion of means includes ball or socket element of ball-and socket type universal joint

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}
258.~.~.~ Pivotable portion of means includes ball or socket element of ball-and socket type universal joint {1}
259  DF  .~.~.~.~> Joint includes intermediate ball, floating in groove, for positively engaging ball with socket

DEFINITION

Classification: 180/258

Pivotable portion of means includes ball or socket element of ball and socket type universal joint:

(under subclass 254) Vehicle wherein that portion of the flexible, axially rotatable means which is pivotable with the steerable wheel includes one or the other of the principal elements of a universal joint of the ball and socket type.