US PATENT SUBCLASS 172 / 534
.~ Wheel or roller with peripherally spaced plant saving means


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

518  DF  ROLLING, ROTATING OR ORBITALLY MOVING TOOL {30}
534.~ Wheel or roller with peripherally spaced plant saving means


DEFINITION

Classification: 172/534

(under subclass 518) Apparatus in which the rolling earth working element is in the form of a wheel or roller lying in a plane parallel to the direction of draft and having earth working surfaces thereon, there being provided between a pair of the earth working surfaces a recess, shield or guard means for receiving and protecting a plant of a plant row.

(1) Note. The earth working surface may be merely a smooth surface of the wheel or roller or may have teeth or the like thereon.

SEE OR SEARCH CLASS

301, Land Vehicles: Wheels and Axles,

53, for vehicle wheels having the ground-engaging portion thereof formed with a series of openings or depressions.