Planting – Drilling – Having depositor feature
Reexamination Certificate
2007-02-06
2007-02-06
Novosad, Christopher J. (Department: 3641)
Planting
Drilling
Having depositor feature
C111S904000, C111S922000
Reexamination Certificate
active
11360531
ABSTRACT:
A self-calibrating metering system for dispensing chemical granules. The system incorporates a flow sensor configured to sense a greater flow rate at the inlet aperture than at the outlet aperture. Further included is an adjustment mechanism configured to adjust the flow rate of the meter so as to calibrate the meter according to a known flow rate through a calibrated orifice within the meter. An electromechanical solenoid may be energized by a subcontroller operably coupled to the metering apparatus to allow chemical granules to flow by gravity from the pesticide container that may be disposed above the metering apparatus. The metering apparatus may be disposed on a planter unit designed to deposit granular materials with seed during the planting process. The metering system further includes an in-meter diffuser that receives foreign material and lumps in order to prevent the metering apparatus from becoming clogged.
REFERENCES:
patent: 5301848 (1994-04-01), Conrad
patent: 5524794 (1996-06-01), Conrad
patent: 5539870 (1996-07-01), Conrad et al.
patent: 5638285 (1997-06-01), Conrad
patent: 5641011 (1997-06-01), Conrad
patent: 5687782 (1997-11-01), Cleveland et al.
patent: 5737536 (1998-04-01), Herrmann et al.
patent: 6938564 (2005-09-01), Conrad
AMVAC Chemical Corporation
McDermott Will & Emery LLP
Novosad Christopher J.
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