Seed distribution method and apparatus

Details Seed distribution method and apparatus Seed distribution method and apparatus

2004-08-05

2009-02-17

Novosad, Christopher J. (Department: 3641)

Planting

Drilling

Having depositor feature

C111S179000, C111S180000, C111S181000, C111S182000, C111S900000, C111S903000, C111S904000, C111S921000, C111S922000

Reexamination Certificate

active

07490565

ABSTRACT:
A seeding apparatus comprising: (a seed distribution metering means including a rotating d drum with apertures on its periphery and a vacuum generator for generating a suction pressure inside the drum so that seeds are attracted to the apertures; (b) feeding system including a hopper, gravitational acceleration chamber, velocity controlling elements such as a flap and continuous belts for feeding seeds at a required amount and speed to the drum; (c) release mechanisms including an air-jet for releasing metered seeds from the drum along a selected trajectory while unselected seeds follow another trajectory, delivery device including an adjustable flow venturi and electronic sensor for controlling delivery of metered seeds.

REFERENCES:
patent: 3434437 (1969-03-01), Mark et al.
patent: 4399757 (1983-08-01), Maury
patent: 1335049 (2002-02-01), None
patent: 100723 (1985-09-01), None
patent: 1824047 (1993-06-01), None
patent: 1540689 (1990-02-01), None

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