US PATENT SUBCLASS 172 / 85
.~.~ Transverse chopping type

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

35  DF  WITH DRIVE MEANS FOR TOOL OR CLEANER {37}
84  DF  .~ Simultaneously reciprocating and oscillating blade having elongated shank {3}
85.~.~ Transverse chopping type {2}
86  DF  .~.~.~> With plural cranks or cams driving each blade
87  DF  .~.~.~> Means for varying contour of path of blade

DEFINITION

Classification: 172/85

(under subclass 84) Apparatus in which the driven earth working element is driven in an endless path or orbit which lies in a plane which is generally vertical and disposed perpendicularly to the direction of travel of a frame on which the earth working element is mounted.

(1) Note. The patents in this and the indented subclasses are generally directed to devices which hoe transversely across a row of plants to chop out certain of the plants.

SEE OR SEARCH THIS CLASS, SUBCLASS:

70, and 73, for transverse choppers combined with nondriven earth working elements.