US PATENT SUBCLASS 172 / 614
.~ Tool pivots on pivoted member when member moves

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

613  DF  PLURAL RELATIVELY MOVABLE TOOLS {14}
614.~ Tool pivots on pivoted member when member moves {1}
615  DF  .~.~> Tools connected to parallel pivoted bars {1}

DEFINITION

Classification: 172/614

(under subclass 613) Apparatus comprising an earth working element mounting member pivoted on a frame or support, at least one earth working element mounted on the member and being pivoted with respect thereto and means for pivoting the element incident to pivotal movement of the member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

684, for similar structure for single tools or for rigid tool units.