Earth working – Draft – pitch or ground level responsive depth control
Reexamination Certificate
2011-01-11
2011-01-11
Novosad, Christopher J. (Department: 3641)
Earth working
Draft, pitch or ground level responsive depth control
C172S260500, C172S395000, C172S407000, C172S417000, C172S423000, C172S424000, C172S663000, C172S675000, C172S004000, C111S135000, C111S926000
Reexamination Certificate
active
07866410
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 lost motion linkage, a hoe opener, and a packer wheel. The design provides improved seeding accuracy, by adjusting assembly components to and compensating for changes in terrain elevation.
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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. 12/141,895, 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”.
U.S. Appl. No. 12/141,908, filed Jun. 18, 2008; Applicants: Nicholas George Alfred Ryder et al.; Entitled: “Precision Hoe Opener with Draft Force Compensation”.
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
Summach Montgomerie
CNH Canada Ltd.
Henkel Rebecca
Novosad Christopher J.
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