US PATENT SUBCLASS 172 / 406
.~.~ With additional actuator changing relative position of wheels

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

395  DF  WITH GROUND SUPPORT VERTICALLY ADJUSTABLE RELATIVE TO FRAME {10}
400  DF  .~ Actuator and interconnected means for adjusting wheels on different axles {4}
406.~.~ With additional actuator changing relative position of wheels

DEFINITION

Classification: 172/406

(under subclass 400) Apparatus in which there is an additional actuating means which operates to adjust said interconnected wheels so as to change their relative position vertically with respect to said frame.

SEE OR SEARCH THIS CLASS, SUBCLASS:

402, for apparatus having three or more interconnected adjustable wheels on different axles which are operated by a

power take-off from one of the adjusted wheels and which includes an additional actuator for changing the relative position of some of the wheels.

470, for plural tools which are independently actuated to be lifted on a wheeled frame for transport with a separate actuator for concurrent lifting or with an interlock means for causing simultaneous lifting.

SEE OR SEARCH CLASS

280, Land Vehicles, 6.15+, for a land vehicle of general utility including means, interposed between the vehicle body, chassis, or frame and running gear thereof, for altering height or levelness of the vehicle body, chassis or frame, especially subclasses 6.154+ wherein the proximate utility is predisposing the load, load carrier, or receptacle portion to enable travel upon a sustained inclined surface.