Patent ID: 8591391

Claim:
A separation system for separating a multiple component material into at least two fractions comprising: a separation device having a first end, a second end opposite to the first end, and a sidewall that extends between the first end and the second end to define a separation chamber having an interior volume; and a valve moveable between an open position and a closed position, the valve is mounted at a fixed location within the separation chamber at a position that is closer to the second end than to the first end and is spaced apart from the second end, the valve is operable to isolate a first fraction of the multiple component material having a first density on a first side of the valve from a second fraction having a second density on a second side of the valve that is opposite to the first side, wherein the valve includes a screen, a valve activation member, and a seal, each of the screen, the valve activation member, and the seal define a through hole at an axial center thereof; wherein the through hole is in fluid communication with apertures at an end of the valve activation member proximate to the second end; and wherein an extraction tube is seated in the through hole and is connected to an extraction port of the separation device.