Planting – Drilling – Having depositor feature
Patent
1999-03-17
2000-11-14
Novosad, Christopher J.
Planting
Drilling
Having depositor feature
111921, 111922, 111200, 222263, 222334, 222318, B67D 508, A01C 1902
Patent
active
061454559
ABSTRACT:
An agricultural material metering system includes a metering member, a hydraulically driven actuator, a pump, a rotatable ground driven member, a variable drive control and an actuator coupled to the variable drive control. The metering member is configured to meter agricultural material upon being driven. The hydraulically driven actuator is coupled to the metering member to drive the metering member. The variable drive control is coupled between an inlet of the pump and the metering member and is configured for actuation between a first position in which the hydraulically driven actuator drives the metering member at a first rate and a second position in which the hydraulically driven actuator drives the metering member at a second rate. The rotatable ground driven member is coupled to the pump and drives the pump when rotating. The pump is coupled to the hydraulically driven actuator and displaces fluid upon being driven to drive the hydraulically driven actuator. The actuator coupled to the variable drive control is configured to actuate the variable drive control between the first and second positions to vary the rate in which materials metered by the metering member. One exemplary embodiment, the variable drive control is incorporated into the pump, wherein the pump comprises a variable displacement pump. In another embodiment, the variable drive control is incorporated into the hydraulically driven actuator such that hydraulically driven actuator comprises a variable displacement hydraulic motor.
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Gust Jacob
Meyer Bradley J.
Case Corporation
Novosad Christopher J.
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