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Integrated implement downforce control systems, methods, and apparatus

  • US 9,144,189 B2
  • Filed: 07/25/2013
  • Issued: 09/29/2015
  • Est. Priority Date: 07/25/2012
  • Status: Active Grant
First Claim
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1. A downforce control system for an agricultural implement, comprising:

  • a first downforce controller including a first pressure control valve housed in a first manifold, said first manifold coupled to a first actuator having a first chamber and a second chamber, said first pressure control valve in fluid communication with said first chamber;

    a second downforce controller including a second pressure control valve housed in a second manifold, said second manifold coupled to a second actuator having a third chamber and a fourth chamber, said second pressure control valve in fluid communication with said third chamber; and

    a third pressure control valve in fluid communication with said second chamber and said fourth chamber.

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