US PATENT SUBCLASS 172 / 153
.~.~ Alternate rolling and non-rolling


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



172 /   HD   EARTH WORKING

133  DF  DIVERSE TOOLS {29}
152  DF  .~ At least four alternately diverse laterally spaced tools (A, B, A, B) {2}
153.~.~ Alternate rolling and non-rolling


DEFINITION

Classification: 172/153

(under subclass 152) Apparatus in which one set of alternate earth working elements is of the rolling type while the other set of alternate earth working elements is of the nonrolling type thus providing a laterally spaced group of earth working elements which are successively of the rolling and nonrolling type.

(1) Note. This definition includes a single rolling tool having a plurality of laterally spaced sets of tines, teeth or the like with nonrolling tools operating in paths between the sets of teeth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

65, for a plurality of laterally spaced interdigitating driven and nondriven tools.

156, and 157, for laterally spaced like tools and an intermediate diverse tool of the rolling and nonrolling type.