Earth working – Diverse tools – Rolling and non-rolling
Reexamination Certificate
2008-03-28
2009-06-23
Novosad, Christopher J. (Department: 3641)
Earth working
Diverse tools
Rolling and non-rolling
C111S156000, C111S194000
Reexamination Certificate
active
07549481
ABSTRACT:
A trailing arm furrow opener apparatus includes a furrow opener bracket attached to the rear link of a parallel link assembly such that the furrow opener bracket and furrow opener attached thereto is maintained in a constant fore and aft angular orientation as the assembly moves up and down. A pucker wheel arm is fixed to one of the upper and lower parallel arm members of the parallel link assembly, and extends rearward from the rear link, and a packer wheel is mounted to the packer wheel arm. A bias device exerts a downward force on the assembly. The presentation angle of the furrow opener with respect to the ground is maintained constant while the assembly moves up and down.
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patent: 7159523 (2007-01-01), Bourgault et al.
Cresswell Mark
Lung Devin
Bourgault Industries Ltd.
Frost Brown Todd LLC
Novosad Christopher J.
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