US PATENT SUBCLASS 172 / 579
.~ Plural groups of disks


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

518  DF  ROLLING, ROTATING OR ORBITALLY MOVING TOOL {30}
579.~ Plural groups of disks {5}
580  DF  .~.~> Power operated actuator
581  DF  .~.~> Groups changeable to different types of arrangements
582  DF  .~.~> With independent lateral adjustment
583  DF  .~.~> Vertically adjustable group
584  DF  .~.~> Horizontally angularly adjustable group {9}


DEFINITION

Classification: 172/579

(under subclass 518) Apparatus in which the rolling or rotating earth working element is a generally circular platelike member and there are plurality of groups or clusters of said members each group or cluster comprising a subassembly of parts which is handled as a unit.

(1) Note. A group is usually a gang of disks each rotating about the same axis, the gang being handled as a unit in the apparatus. The groups of disks, however, may be disclosed as involving disks rotating on different axes. If the claim merely calls for groups or gangs without detailing the different axes, the device is classfiable under this definition. If the claim describes the mounting of the disks on different axes in some detail, the patent would be classifiable in subclasses 574+ if its disclosure warranted it, or in other appropriate subclasses.