US PATENT SUBCLASS 280 / 490.1
.~.~ Vertically adjustable


Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
400  DF  .~ Articulated vehicle {30}
490.1.~.~ Vertically adjustable


DEFINITION

Classification: 280/490.1

Vertically adjustable:

(under subclass 400) Vehicles in which the elevation of the draft or coupling member on at least one of the vehicles may be selectively adjusted with respect to the ground or the vehicle in order to be at the proper height for receiving the corresponding member on the other vehicle, or the coupling member on one of the vehicles provides a plurality of vertically spaced connecting points with which the corresponding coupling member on the other vehicle can be selectively connected.

SEE OR SEARCH THIS CLASS, SUBCLASS:

478.1+, for a draft or coupling member which may be vertically shifted with respect to the vehicle on which it is mounted to facilitate connection with another vehicle and is then returned to its original position.

SEE OR SEARCH CLASS

172, Earth Working,

321, for an earth working apparatus comprising an actuator on a vehicle for moving a wheeled implement, subclasses 439+ for an earth working implement with a mast type hitch, and subclasses 452+ for an earth working apparatus comprising an actuator adapted to lift an implement for transport on a tractor.