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US 8,145,396 B2Granted
Planter assembly with selectively actuated output
AssigneeTrimble Navigation Limited
InventorJeffrey D. Dillman
Life of this patent
Estimating the term…
Abstract
An actuating system for a planting device. The actuating system has an electric motor that provides an actuating force for a seed shaft. A pneumatic acting member is connected to a source of compressed air through a valve and positioned to engage the electric motor to actuate the electric motor. The source of compressed air and electric motor can thus be connected to a controller that operates the source of compressed air and the electric motor in order to provide selective actuation to control planting of the planting device.
Claims4
An actuating system for a planting device comprising:
- more than one electric motor providing an actuating force for more than one seed shaft;
- more than one pneumatic actuating member positioned to engage the electric motors to activate the electric motors;
- a valve module having more than one valve, the valves connected to the pneumatic actuating members and a source of compress air;
- and
- a controller connected to the source of compressed air, the valve module and the electric motors to operate the valves, the source of compressed air and the electric motors.
2 more elements
Dependencies are inferred from the claim text.