Patent ID: 6895852

Claim:
An apparatus for providing a reduced hydraulic flow output to a plurality of actuatable devices, wherein each of the actuatable devices receives respective amounts of hydraulic fluid from a shared pump, and wherein the respective amounts of hydraulic fluid received by the respective actuatable devices are substantially independent of differences in respective load pressures associated with the respective actuatable devices, the apparatus comprising: a plurality of main valves each having a respective first port and a respective second port; a plurality of secondary valves coupled respectively to the respective second ports of the respective main valves; and an adjustment valve that has first and second actuation ports and is coupled between respective actuation ports on each of the secondary valves and a pressure source, wherein the first actuation port receives a first indication of a pressure at the respective actuation ports of the secondary valves and the second actuation port receives a second indication of a highest load pressure adjusted by an amount, and wherein the adjustment valve allows hydraulic pressure to be provided from the pressure source to the respective actuation ports of the secondary valves when the second indication exceeds the first indication.