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Agricultural systems

  • US 10,506,755 B2
  • Filed: 09/05/2017
  • Issued: 12/17/2019
  • Est. Priority Date: 09/15/2010
  • Status: Active Grant
First Claim
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1. A system for separately controlling a down force on each of a plurality of different tools on each row unit of an agricultural implement having multiple row units, said system comprisinga plurality of hydraulic cylinders in each of said row units for applying a separately controllable down force to each of said tools,a plurality of separate control valves each of which is coupled to one of said hydraulic cylinders,a plurality of sources of pressurized hydraulic fluid each of which is coupled to one of said control valves for supplying pressurized hydraulic fluid to said control valves, andan electrical controller coupled to said control valves for supplying a separate control signal to each of said control valves to permit remote adjustment of the down force applied to each of said tools.

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