Patent ID: 9313937
Filing Date: 2016-04-19
CPC Classification: A01B

Claim Text:
1. A tillage apparatus comprising: a frame configured to be moved in a longitudinal direction by a vehicle; and a plurality of tillage assemblies, each tillage assembly having a concave disc shaped tillage blade rotatably attached thereto configured in a plurality of transversely adjacent columns, the tillage assemblies of the plurality of columns arranged in at least four transversely extending rows that are spaced apart along the longitudinal direction, each of the tillage assemblies being individually mounted to the frame, the concave blades of each column being transversely tilted from the longitudinal direction left or right alternately by row, wherein longitudinal spacing between a rearward adjacent pair of rows is greater than longitudinal spacing between a forward pair of rows, wherein in each column the concave blade of a rearmost row is transversely tilted less than the concave blade of a row forward of the rearmost row, the concave blades in the rows forward of the rearmost row transversely tilted at an angle in a range from about 12 degrees to about 20 degrees, the concave blades of each column being transversely offset from one another to create a swath of tilled ground, wherein two of the concave blades of each column are at opposite transverse extents of a width of the column, and wherein the two concave blades are in adjacent rows and oppositely oriented with respect to one another.