Patent ID: 8225603

Claim:
A fluid controller comprising: a first fluid meter having a first plurality of volume chambers; a second fluid meter having a second plurality of volume chambers, wherein the second plurality of volume chambers is in selective fluid communication with the first plurality of volume chambers; a selector assembly in selective fluid communication with the first and second fluid meters, the selector assembly having: a selector plate defining a bore; and a selector valve disposed in the bore and adapted for rotational movement between a first position and a second position, the selector valve including a first face, an oppositely disposed second face and an exterior surface that extends between the first and second faces, the selector valve defining a plurality of thru-passages that extend axially through the first and second faces, the plurality of thru-passages being adapted to provide fluid communication between the first and second plurality of volume chambers when the selector valve is in the first position, the selector valve defining a groove disposed on the second face, wherein the groove is adapted to recirculate fluid from the second plurality of volume chambers when the selector valve is in the second position.