Polyurethane flail for use in defoliating sugar beets and the like
AssigneeWIC, Inc.
InventorWayne J. Schwitters
Life of this patent
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Abstract
The disclosed flexible flail is molded from polyurethane. The flail has a relatively thin shank with a hub at one end so that the flail can be attached to the rotor of conventional defoliating apparatus and has a thicker portion at the end thereof opposite the hub. A plurality of metal studs have disk-like heads embedded in the thicker portion of the shank and the studs project from the side of the shank opposite the thicker portion in a direction so as to strike the leaves and remove same from sugar beets and the like while such beets are still in the ground.
Claims21
A flexible flail for use in defoliating sugar beets and the like comprising a relatively flexible polyurethane shank, a polyurethane hub integral with one end of said shank for attachment to a rotor of defoliating apparatus, and a plurality of metal relatively rigid studs projecting from one side of said shank adjacent the other end thereof.
A flexible flail for use in defoliating sugar beets and the like comprising a relatively thin polyurethane shank, a polyurethane hub integral with one end of said shank for attachment to a rotor of defoliating apparatus, said shank having a relatively thick portion adjacent the other end thereof.
A flexible flail for use in defoliating sugar beets and the like comprising a relatively thin flexible shank of substantially all polyurethane with minor amounts of nylon and thermoplastic rubber, a hub integral with one end of said shank for attachment to a rotor of defoliating apparatus, said shank having a relatively thick portion adjacent the other end thereof, and a plurality of metal studs having heads embedded in said relatively thick portion and projecting generally perpendicularly from the side of said shank opposite the side from which said relatively thick portion projects.
A flexible flail for use in defoliating sugar beets and the like comprising a relatively flexible polyurethane shank of uniform thickness having an enlarged integral hub at one end thereof for attaching to a rotor of a defoliating apparatus, and a plurality of relatively rigid studs of metal projecting from one side of said shank adjacent the other end thereof.
Dependencies are inferred from the claim text.