US PATENT SUBCLASS 172 / 408
.~.~ Wheel actuates its crank axle mount

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

395  DF  WITH GROUND SUPPORT VERTICALLY ADJUSTABLE RELATIVE TO FRAME {10}
407  DF  .~ Power operated adjustment {2}
408.~.~ Wheel actuates its crank axle mount {3}
409  DF  .~.~.~> Wheel lockable to crank axle arm
410  DF  .~.~.~> Intermittently rotatable member swingable with crank {1}
412  DF  .~.~.~> Swingable arm engageable with wheel

DEFINITION

Classification: 172/408

(under subclass 407) Apparatus in which there is an axle connected to a crank arm pivotally connected to the framework, a ground wheel is rotatably mounted on the axle and there is a means intermittently connectible to the ground wheel as it continuously rotates so that turning movement of the wheel causes swinging of the crank arm about its pivotal connection to the framework to move the wheel vertically with respect to the framework.

SEE OR SEARCH THIS CLASS, SUBCLASS:

402, and 404, for an actuator and interconnected means for adjusting wheels on different axles with a power take-off from one of the adjusted wheels for operating the actuator.

SEE OR SEARCH CLASS

280, Land Vehicles,

47, for a vehicle having an extensible wheel that is vertically adjustable by means of power derived from the wheel as it rolls over the ground.