US PATENT SUBCLASS 37 / 390
.~.~ Disc plow


Current as of: June, 1999
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37 /   HD   EXCAVATING

381  DF  ROAD GRADER-TYPE {7}
389  DF  .~ Plow with transverse endless conveyor {1}
390.~.~ Disc plow


DEFINITION

Classification: 37/390

Disc plow:

(under subclass 389) Apparatus wherein the earth loosening or removing means is a thin, flat, circular plate. [figure] [caption]A - Main frame; B - Front wheels; C - Rear wheels; D - Tongue connection to vehicle; E - Disc plow; F - Transverse endless conveyor

SEE OR SEARCH CLASS

172, Earth Working,

33, for a power-driven moldboard, conveyor, or handler; subclasses 299+ for an earth working tool forward or rear of a motor vehicle.

198, Conveyors: Power-Driven,

308.1, for a conveying apparatus entirely supported by a mobile ground engaging means with shovel or tine; subclasses 312+ for a conveyor shiftably mounted on a vehicle.