US PATENT SUBCLASS 172 / 547
.~.~ With cleaning means


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

518  DF  ROLLING, ROTATING OR ORBITALLY MOVING TOOL {30}
540  DF  .~ Tool has circumferentially spaced teeth, tines, blades or the like {13}
547.~.~ With cleaning means


DEFINITION

Classification: 172/547

(under subclass 540) Apparatus with means for clearing earth from the projecting elements.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69, for apparatus in which one earth working element is definitely a driving means and is cleaned by another earth working element which is driven by the first element as the apparatus is propelled over the ground.

546, for a rolling, rotating, or orbitally moving element having tines, blades, or the like in which the tines or blades are cleaned by movement relative to the rotating support.

558+, for disc cleaning means.

674+, for earth working tool cleaning means in general.