US PATENT SUBCLASS 172 / 542
.~.~ Tooth or blade on endless carrier


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}
542.~.~ Tooth or blade on endless carrier


DEFINITION

Classification: 172/542

(under subclass 540) Apparatus in which the teeth, tines, projections, or blades of the implement are mounted on a flexible or articulated, closed belt-like member which moves through an endless circuit as the device is moved over the earth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

100, for power driven, endless chain-type earth working implements.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth,

89+, for an earth-boring device including a tool element on a continuously driven flexible or articulated endless member.

305, Wheel Substitutes for Land Vehicles, 187+, for one endless flexible track for a land vehicle, said track having detachable cleats for penetrating the ground to secure better traction for the track.