US PATENT SUBCLASS 172 / 397
.~ Tool land ground support moved together relative to frame


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

395  DF  WITH GROUND SUPPORT VERTICALLY ADJUSTABLE RELATIVE TO FRAME {10}
397.~ Tool land ground support moved together relative to frame {1}
398  DF  .~.~> Linkage to tool


DEFINITION

Classification: 172/397

(under subclass 395) Apparatus in which the adjustment of the ground support is accompanied by movement of an earth working element relative to the frame.

SEE OR SEARCH THIS CLASS, SUBCLASS:

211, for implements comprising earth working means alternating for right or left hand operation and a vertically adjustable ground support for lifting the implement, the ground support and earth working means being interrelated so that vertical movement of the ground support is accompanied by the shifting of the earth working means to its alternate position.

244, for apparatus having a ground support engaging the ground for transport only where the ground support and a tool are moved together relative to a supporting frame.

323, for devices in which the tool pivots about a wheel axis which may be moved vertically with respect to a frame.