Planting – Drilling – Frame and planting-element arrangement
Reexamination Certificate
2005-09-21
2008-07-08
Novosad, Christopher J. (Department: 3641)
Planting
Drilling
Frame and planting-element arrangement
C111S135000, C111S069000, C111S151000, C111S089000, C172S265000, C172S484000
Reexamination Certificate
active
07395767
ABSTRACT:
A ground engaging apparatus (10) has a support plate (50) pivotally attached to a frame (100); a pair of arms (30, 40) interconnecting the support plate (50) and a shank support (60), which supports a shank (70) and ground follower (90) and first and second biasing rams or springs (200, 300), to maintain the ground follower (90); against the ground (91) but allow controlled break out of a ground opening, or tillage, tool (81) if an obstruction is engaged.
REFERENCES:
patent: 4580507 (1986-04-01), Dreyer et al.
patent: 58706/86 (1986-12-01), None
Derwent Abstract Acession No. B4505B/07, SU599755 A (Minsk Tractor Wks) Apr. 19, 1978.
International Search Report dated Dec. 15, 2005.
Caplop Pty. Ltd.
Hunton & Williams
Novosad Christopher J.
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