Down pressure adjuster for seed planter

Details Down pressure adjuster for seed planter Down pressure adjuster for seed planter

2008-07-01

2008-07-01

Novosad, Christopher J. (Department: 3641)

Planting

Drilling

Frame and planting-element arrangement

Reexamination Certificate

active

11194428

ABSTRACT:
A down pressure adjustment mechanism for a planter provides a self-contained spring cartridge holding a preloaded compression spring that may be moved between a limited number of mounting points to provide for convenient and significant changes in down pressure without the need for specialized tools or the like.

REFERENCES:
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patent: 4766962 (1988-08-01), Frase
patent: 5136518 (1992-08-01), Glvoer
patent: 5529128 (1996-06-01), Peterson et al.
patent: 5544709 (1996-08-01), Lowe et al.
patent: 5555824 (1996-09-01), Stufflebeam et al.

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