US PATENT SUBCLASS 172 / 280
.~.~ Implement wheel steered


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}
279  DF  .~ Implement part interconnected with motor vehicle steering means {2}
280.~.~ Implement wheel steered


DEFINITION

Classification: 172/280

(under subclass 279) Apparatus wherein the element of said device which is moved comprises a ground wheel or the like.

(1) Note. The mere motion of a caster wheel on the device due to a movement of said device is not included. There must be some linkage for positively causing movement of the wheel of the device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

282, for a wheel on a device carrying an earth working element which is moved in response to turning movement of a propulsion means rather than by a means connected with the steering linkage.

SEE OR SEARCH CLASS

280, Land Vehicles,

137.5+, for a land vehicle of general utility including a turnable axle lacking resilient, shock absorbing support; subclass 419 for a vehicle train having interconnected steering of the plural units; or subclasses 442+ for a vehicle train including steering control of a following vehicle's wheel through articulative movement of the interconnecting draft member.