Earth working – Overload shifting – Against spring return device
Patent
1995-03-30
1997-02-25
Melius, Terry Lee
Earth working
Overload shifting
Against spring return device
172699, 172700, A01B 6104
Patent
active
056051964
ABSTRACT:
An agricultural implement that includes a plurality of ground penetrating units for shattering the hard pan in a relatively wide pattern as the implement is drawn across the field while causing minimum disturbance to the top surface of the ground. Each ground penetrating unit includes a depending shank with a three piece plow point assembly releasably and symmetrically connected to a forward projecting lower end of the shank. The plow point assembly includes a shoe with first and second vanes attached to the shank rearwardly of a rear surface of the shoe and diverging outwardly from opposite sides of the shank. The shoe and vanes of each plow point assembly are separately and releasably attached to the shank such that any one component of the plow point assembly can be repaired or replaced independent of the other components. Each vane is pivotally fastened to the shank such that a blade portion of the vane can be angularly adjusted relative to upwardly sloping top surface of the shoe to control the degree of lifting force imparted to the ground as the implement is drawn across the field. The shank of each ground penetrating unit is specifically configured to maintain the plow point assembly in the ground.
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Eight-page DMI sales brochure Form No. 1552-5A undated.
Grimm William L.
Lutz, Jr. Austin W.
Case Corporation
Harbst John W.
Melius Terry Lee
Novosad Christopher J.
LandOfFree
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