US PATENT SUBCLASS 172 / 175
.~.~ Following same path

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

133  DF  DIVERSE TOOLS {29}
174  DF  .~ Rolling and non-rolling {2}
175.~.~ Following same path {5}
176  DF  .~.~.~> Furrowing or ridging implement followed by furrow or ridge roller
177  DF  .~.~.~> Rolling tool has circumferentially spaced blades, tines or the like
178  DF  .~.~.~> Including disk gang
179  DF  .~.~.~> Non-rolling tool group with laterally co-extensive rolling tool
180  DF  .~.~.~> Rolling precedes non-rolling (same path) {1}

DEFINITION

Classification: 172/175

(under subclass 174) Apparatus in which the rolling and nonrolling earth working elements are included in implements

which travel in the same or overlapping paths and are longitudinally spaced from one another.

(1) Note. If an implement follows in or overlaps the path of travel of a diverse implement the implements are considered to be traveling in the same path. It should be particularly noted that the work "implement" covers either a group of like earth working elements or a single earth working element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71, for a driven tool and nondriven tool traveling in the same path.

149+, for three or more diverse implements following the same path at least one of which is the rolling type.

195+, for diverse implements of the nonrolling type following the same path.