Integrated implement downforce control systems, methods, and apparatus
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United States of America Patent
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Jan 30, 2018
Grant Date -
Jun 25, 2015
app pub date -
Jul 25, 2013
filing date -
Jul 25, 2012
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Abstract
A downforce controller for an agricultural implement having a double-acting hydraulic cylinder. The cylinder is configured to be coupled to an agricultural row unit and an agricultural toolbar for transmitting a net downforce between the agricultural toolbar and the agricultural row unit. A first pressure in the first chamber of the cylinder and a second pressure in the second chamber of the cylinder having counteracting effects on the net downforce. A manifold coupled to the cylinder is in fluid communication with the first chamber. A pressure control valve supported by the manifold is in fluid communication with the manifold and the first chamber.
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