Patent ID: 6983764

Claim:
A sequencing valve comprising: a housing defining first and second ports; first and second check valves fluidly connected to the first port via the housing, each of the first and second check valves being adjustable to control a flow of fluid through the housing and the first port; third and fourth check valves fluidly connected to the second port via the housing, each of the third and fourth check valves being adjustable to control a flow of fluid through the housing and the second port; a shaft rotatably mounted in the housing, adjustable between first and second operable positions; a first cam mounted on the shaft and rotatably adjustable with the shaft between the first and second operable positions, the first cam being configured to adjust the first and second check valves such that one of the first and second check valves is fluidly connected to the first port when the shaft is in the first operable position and the other of the first and second check valves is fluidly connected to the first port when the shaft is in the second operable position; and a second cam mounted on the shaft and rotatably adjustable with the shaft between the first and second operable positions, the second cam being configured to adjust the third and fourth check valves such that one of the third and fourth check valves is fluidly connected to the second port when the shaft is in the first operable position and the other of the third and fourth check valves is fluidly connected to the second port when the shaft is in the second operable position.