US PATENT SUBCLASS 172 / 459
.~ Pivotable about longitudinal axis (e.g., lateral levelling, etc.)

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

452  DF  WITH ACTUATOR ADAPTED TO LIFT TOOL FOR TRANSPORT ON WHEELED FRAME OR BROADLY CLAIMED IMPLEMENT {37}
459.~ Pivotable about longitudinal axis (e.g., lateral levelling, etc.) {1}
460  DF  .~.~> Tool independently vertically adjustable at transversely spaced points

DEFINITION

Classification: 172/459

(under subclass 452) Apparatus comprising an earth working element which is swingable about an axis which extends substantially in the direction of movement of the apparatus over the ground.

(1) Note. The earth working element may have a motion of translation and still be considered swingable about a longitudinal axis if the motion of translation is caused by links swinging about a longitudinal axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

446, for an implement with a mast-type hitch and laterally adjustable about a longitudinal axis.

456, for an apparatus comprising a group of tools liftable vertically on a wheeled frame and side groups swingable inwardly on longitudinal axes.

640, for plural, relatively movable tool groups having a tool group pivotally adjustable about a horizontal axis.

782, for a scraper between front and rear ground supports of a vehicle and a laterally offset tool which is adjustable about a longitudinal axis.