Depth control for seed planter

Details Depth control for seed planter Depth control for seed planter

2005-08-30

2005-08-30

Pezzuto, Robert E (Department: 3671)

Planting

Drilling

Frame and planting-element arrangement

Reexamination Certificate

active

06935253

ABSTRACT:
A disc opener assembly connected to a tool bar linked to a vehicle for movement over the ground for opening a seed trench therein, the assembly comprising a main arm member attached to the tool bar, a disc mounted for rotation on the main arm, a gauge arm member having proximal and distal ends, the proximal end mounted for pivotal motion about a pivot axis to the main arm member, a gauge wheel mounted to the distal end of the gauge arm member, a first coupler mounted to the main arm member, a second coupler linked to the gauge arm member and juxtaposed proximate and for movement with respect to the first coupler along a coupling axis that is substantially parallel to the pivot axis, the second coupler configured to engage the first coupler when biased there against and a retainer for maintaining the first and second couplers engaged.

REFERENCES:
patent: 4116140 (1978-09-01), Anderson et al.
patent: 4355688 (1982-10-01), Hamm et al.
patent: 4374500 (1983-02-01), Westerfield
patent: 5427038 (1995-06-01), Ege
patent: 5829535 (1998-11-01), Line
patent: 5934208 (1999-08-01), Clemons
patent: 6386127 (2002-05-01), Prairie et al.
patent: 6752094 (2004-06-01), Truax

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