US PATENT SUBCLASS 172 / 396
.~ Vertically adjustable or selectively lockable hitch


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

395  DF  WITH GROUND SUPPORT VERTICALLY ADJUSTABLE RELATIVE TO FRAME {10}
396.~ Vertically adjustable or selectively lockable hitch


DEFINITION

Classification: 172/396

(under subclass 395) Apparatus in which the frame carries a draft means for connecting the frame to a propelling means, said draft means being (1) vertically adjustable relative to the frame to (2) freely vertically movable relative to the frame under some conditions of operation and means are provided to prevent or limit the vertical movement under other conditions of operation.

(1) Note. For the meaning of "adjustable" see the class definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

319, for an actuator on a vehicle for moving an implement ground support vertically relative to the implement frame interconnected means for moving a hitch.

327+, for an actuator on a trailing implement for moving a draft means vertically and a vertically adjustable ground support.