Vertical positioner for seed planter having integral locking...

Details Vertical positioner for seed planter having integral locking... Vertical positioner for seed planter having integral locking...

2006-04-25

2006-04-25

Batson, Victor (Department: 3671)

Planting

Drilling

Frame and planting-element arrangement

C111S018000, C172S462000, C172S484000

Reexamination Certificate

active

07032527

ABSTRACT:
A seed planting assembly is provided having a plurality of planting units supported by a tool bar, each of which being operable to form a seed trench in soil, plant seeds in the seed trench, and close the seed trench. Each planting assembly is supported by the tool bar via a mounting assembly that can be actuated by a vertical positioner to raise and lower individual planting units.

REFERENCES:
patent: 4116140 (1978-09-01), Anderson et al.
patent: 4307674 (1981-12-01), Jennings et al.
patent: 4311104 (1982-01-01), Steilen et al.
patent: 4977841 (1990-12-01), Truax
patent: 5163518 (1992-11-01), Foley
patent: 5511498 (1996-04-01), Lohrentz et al.
patent: 5515929 (1996-05-01), Schwitters
patent: 5529128 (1996-06-01), Peterson et al.
patent: 6109193 (2000-08-01), Crabb et al.
patent: 6401638 (2002-06-01), Crabb et al.

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