US Patent 9723776 Agricultural implement and attachment with down pressure control system

An agricultural implement and attachment are described for soil conditioning. The implement may include an implement frame, with the attachment configured to be towed by the implement frame. A pressurized fluid circuit may be configured to control one or more actuators, in order to provide lifting or lowering force to the attachment. The attachment may include a leading frame and a trailing frame, each configured to support a set of agricultural tools. The trailing frame may be mounted to the implement frame via the leading frame.