US PATENT SUBCLASS 172 / 220
.~.~ Reversible disk with reversible cleaner


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

204  DF  ALTERNATING FOR RIGHT OR LEFT HAND OPERATION (OTHER THAN SCRAPER) {10}
219  DF  .~ Tool shifted for opposite throw {3}
220.~.~ Reversible disk with reversible cleaner


DEFINITION

Classification: 172/220

(under subclass 219) Apparatus in which the earth working element is of the rolling-disk type having cleaning means to remove soil therefrom, the cleaning means being movable relative to the disk upon reversal of the disk so as to perform the cleaning operation for either direction of earth movement.

(1) Note. A scraper which merely moves as a unit with a reversible disk is not considered to be a reversible cleaning means for this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

558+, for cleaning means for disks.