US PATENT SUBCLASS 172 / 417
.~.~ Parallel links

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

395  DF  WITH GROUND SUPPORT VERTICALLY ADJUSTABLE RELATIVE TO FRAME {10}
415  DF  .~ Translating motion {3}
417.~.~ Parallel links

DEFINITION

Classification: 172/417

(under subclass 415) Apparatus in which the ground support is carried by a pair of links pivoted to the ground support and the frame structure, respectively, and which remain substantially parallel throughout their movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

405, for interconnected translating and swinging wheels.