Shallow disc blade vertical tillage system

Details Shallow disc blade vertical tillage system Shallow disc blade vertical tillage system

2009-04-30

2011-12-13

Will, Thomas (Department: 3671)

Earth working

Diverse tools

Including colter

C172S551000, C172S581000, C172S599000

Reexamination Certificate

active

08074728

ABSTRACT:
A tilling implement has a front row of shallow concave disc blades having a front right portion and a front left portion symmetrically disposed about a centerline of the implement. A rear row of shallow concave disc blades has a rear right portion and a rear left portion symmetrically disposed about the centerline of the implement. The rear right portion following behind the front right portion in a right path and the rear left portion following the front left portion in a left path when the implement is displaced through a field. The implement includes no ground engaging tool in the right path between the front right portion and the rear right portion, and no ground engaging tool in the left path between the front left portion and the rear left portion. The shallow concave disc blades have a concavity of between approximately 1.25 and 1.69 inches over an outer diameter of approximately 20 inches. The front left portion and the front right portion, and/or the rear left portion and the rear right portion, are positioned at an angle of about 18 degrees with respect to a line perpendicular to the centerline.

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Kovach, Michael George et al., U.S. Appl. No. 12/433,635, filed Apr. 30, 2009; entitled “Symmetrical Path Vertical Tillage System and Method”.
Great Plains Manufacturing, Inc., Operator's Manual, 2003.

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