Earth working – Tool – standard or connection – Non-rectangular – symmetrical type
Patent
1992-01-13
1993-11-09
Reese, Randolph A.
Earth working
Tool, standard or connection
Non-rectangular, symmetrical type
172732, 111152, A01B 3920
Patent
active
052594610
ABSTRACT:
A cultivator sweep having a substantially constant cross-sectional thickness and configured with a generally triangular head portion including a pair of side edges diverging symmetrically rearward from a nose region. Each of the side edges is provided with a bevelled outer edge defining a blade region to enhance weed cutting ability of the sweep. Each blade region extends forwardly toward and terminates short of the foremost point of the sweep to provide the nose region with a width equal to at least two times the thickness of the sweep thereby increasing the strength and configuration of the nose region thus prolonging the useful life of the sweep. The sweep can also include in the attachment portion which is integrally formed with the head portion.
REFERENCES:
patent: 960194 (1910-05-01), Pobanz
patent: 2337777 (1943-12-01), Seaholm
patent: 2889788 (1959-06-01), Van Dorn
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patent: 4446801 (1984-05-01), Machnee et al.
patent: 4580639 (1986-04-01), Johnson
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patent: 4787462 (1988-11-01), Nichols
patent: 4850435 (1989-07-01), Morris et al.
patent: 4871032 (1989-10-01), McGuire et al.
J. I. Case Company Part Drawing No. 1547183C1 illustrating a Cultivator Sweep dated Apr. 18, 1991.
Bourgault Industries-Cultivator Division Limited two-page brochure showing a Cultivator Sweep (undated).
Baldwin-Inplementos Agri'colas S.A. two-page brochure (undated) listing implement sweeps.
Wiese Corporation two-page brochure (dated 1989) listing chisel plows.
Adams Hard Facing Company two-page brochure (undated) showing cultivator sweeps.
Osmundson Manufacturing Company two-page brochure (undated) showing chisel plow sweep with sweeped nose.
Case Corporation
Reese Randolph A.
Warnick Spencer
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