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Apparatus and method for separating and concentrating fluids containing multiple components

  • US 7,780,860 B2
  • Filed: 05/19/2008
  • Issued: 08/24/2010
  • Est. Priority Date: 05/24/2002
  • Status: Expired due to Term
First Claim
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1. A method of separating a multi-component fluid using a centrifuge process and buoy system, including a first and a second piston, in a container to hold the multi-component fluid during the centrifuge process, comprising:

  • interconnecting the first piston and the second piston with a connection member;

    forming a first fraction and a second fraction by centrifuging the multi-component fluid disposed in the container;

    containing at least a portion of the second fraction in a collection area of the first piston;

    disposing the first piston relative to the second piston; and

    moving the second piston relative to the first piston to at least assist in withdrawing the second fraction.

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