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US 5,657,707 AGranted
Spring-tine residue wheel for planters
AssigneeGreat Plains Manufacturing, Inc.
InventorsMichael J. Dresher, Stanley R. Clark, Eric Johnson
Life of this patent
Estimating the term…
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AssigneeGreat Plains Manufacturing, Inc.
InventorsMichael J. Dresher, Stanley R. Clark, Eric Johnson
Estimating the term…
The residue wheel has a plurality of multiply bent spring-steel tines that project outwardly from their central hub at such angles that straight foot portions of the tines engage and lie flatly against the ground as the tines sweep residue rearwardly and outwardly during rotation of the wheel about an axis oblique to the path of travel of the planting machine. The tines are equally spaced about the wheel but are arranged in pairs, comprising individual legs of a generally U-shaped, integral unit having a bight at the inner ends of the the legs that joins the legs together and serves as a means by which the unit can be clamped between opposed, flat plates of the hub. Short downturned driving prongs at the outer ends of the legs provide traction for the wheel during use.
In a seed planting machine having a ground-driven residue wheel for clearing residue from the intended path of travel of an opener of the machine, the improvement in said residue wheel comprising:
A residue wheel for use in clearing residue from an intended path of travel of a seed planting machine comprising:
A replaceable tine unit for a residue wheel comprising a generally U-shaped, unitary body having a pair of elongated, resilient, laterally spaced apart legs integrally interconnected at one end by a bight, one of said legs comprising a leading leg with respect to the intended direction of rotation of the wheel when the tine unit is installed thereon and the wheel is placed in use and the other of said legs comprising a trailing leg with respect to said intended direction of rotation, each of said legs having an outer sweeping foot portion inturned generally toward said bight and disposed at least generally within the plane of the bight and projecting generally in a direction opposite to said intended direction of rotation, each of said legs having a driving prong outturned generally away from the bight and located at an outer end of the foot portion.
Dependencies are inferred from the claim text.