US PATENT SUBCLASS 172 / 197
.~.~ Teeth and scraper, leveller or drag


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}
195  DF  .~ Second implement follows path of first {4}
197.~.~ Teeth and scraper, leveller or drag


DEFINITION

Classification: 172/197

(under subclass 195) Apparatus in which the diverse earth working elements comprise a plurality of earth working teeth, and a substantially vertical blade disposed generally transversely of the direction of travel or a horizontal bar or plate having a continuous ground engaging edge or horizontal surface which acts to scrape or level the surface of the soil.

(1) Note. A vertical blade which is disposed at an angle to the direction of movement of the apparatus of substantially other than 90 deg. so as to provide substantial lateral soil

movement is excluded from this definition unless such blade is a scraper for producing a level surface.

(2) Note. See the definition of subclass 713 of this class for the definition of teeth. However, ripper or scarifier teeth are included under this definition even if they do not meet the definition of subclass 713.

SEE OR SEARCH THIS CLASS, SUBCLASS:

189, for diverse tools one of which is a fabric or flexible tool.

199+, for other diverse tools following the same path and including a drag, scraper, or leveling blade. 785, for a scraper between front and rear vehicle ground supports combined with teeth preceding the scraper.