Planting – Drilling – Frame and planting-element arrangement
Reexamination Certificate
2008-06-18
2009-08-25
Novosad, Christopher J. (Department: 3641)
Planting
Drilling
Frame and planting-element arrangement
C111S156000, C111S194000, C111S900000, C029S891000
Reexamination Certificate
active
07578246
ABSTRACT:
A precision hoe opener assembly is provided with improved accuracy of seeding as well as improved control over the opener and packer wheel assemblies. The opener assembly includes a hydraulically-driven parallel linkage assembly, a swing link, a ground engaging tool, and a packer wheel. The design provides improved seeding accuracy, by compensating for changes in draft force caused by changes in terrain elevation. The swing link allows the cylinder to compensate for the forces applied to the ground engaging tool, thereby providing a substantially constant packing force to the soil beneath the packing wheel.
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U.S. Appl. No. 12/141,881, filed Jun. 18, 2008; Applicants: Jim Henry et al.; Entitled: “Precision Hoe Opener and Packer Wheel Assembly”.
U.S. Appl. No. 12/141,891, filed Jun. 18, 2008; Applicants: Nicholas George Alfred Ryder et al.; Entitled: “Precision Hoe Opener with Swing Link Between Cylinder Shank”.
U.S. Appl. No. 12/141,895, filed Jun. 18, 2008; Applicants: Nicholas George Alfred Ryder et al.; Entitled: “Precision Hoe Opener Assembly with Swing Link and Biasing Member”.
U.S. Appl. No. 12/141,904, filed Jun. 18, 2008; Applicants: Nicholas George Alfred Ryder et al.; Entitled: “Precision Hoe Opener Assembly with Adjustable Packer Wheel Location”.
Voichinskii, S.M.; Agricultural Implement depth controller; Derwent Abstract Accession No. B4505B/07, Class P11, SU 599755 A (Minsk Tractor Wks) Apr. 19, 1978; abstract drawings.
Gadzella Gerard James
Ryder Nicholas George Alfred
CNH Canada Ltd.
Henkel Rebecca
Novosad Christopher J.
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