US PATENT SUBCLASS 172 / 282
.~ Wheel on trailing implement responds to turning movement

Current as of: June, 1999
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172 /   HD   EARTH WORKING

278  DF  WITH WHEEL STEERING OR ACTUATOR FOR HORIZONTALLY ANGLING WHEEL AXIS {3}
282.~ Wheel on trailing implement responds to turning movement {3}
283  DF  .~.~> Interconnected with adjustable tool
284  DF  .~.~> With additional angular adjustment of wheel
285  DF  .~.~> Rear wheel turned or controlled

DEFINITION

Classification: 172/282

(under subclass 278) Apparatus in which the ground wheel whose position is changeable is on an implement which trails behind and has an articulated connection with a propulsion means such that the wheel is caused to turn relative to the implement by turning movement of the propulsion means relative to the implement.

(1) Note. A freely swiveling caster wheel is not included. There must be some means for positively causing the wheel to turn when the propulsion means turns.

(2) Note. A hitch attached to a swinging axle carrying wheels so as to swing the axle with respect to the running gear when the propulsion means turns is included.

SEE OR SEARCH THIS CLASS, SUBCLASS:

280, for an implement wheel connected with the steering linkage of a self-propelled vehicle.

SEE OR SEARCH CLASS

280, Land Vehicles, 426, for articulated vehicles wherein the wheels of a semi-trailer are steered as a result of the articulate motion, and subclasses 442+ for articulated vehicles wherein the wheels are steered by articulative movement.