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Centrifugal filtration apparatus

  • US 6,156,199 A
  • Filed: 08/11/1998
  • Issued: 12/05/2000
  • Est. Priority Date: 08/11/1997
  • Status: Expired due to Fees
First Claim
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1. A centrifugal liquid filtration apparatus for separating filtrate and concentrate from a solution capable of being used in a fixed angle or swinging bucket centrifuge rotor comprising:

  • (a) a concentrate tube assembly capable of containing a solution therein, comprising;

    (i) a concentrate tube,(ii) a micro-porous filter element,(iii) a filter cover,(iv) a concentrate tube cap, and(v) a filtrate tube for collecting filtrate;

    (b) said concentrate tube assembly containing a first chamber capable of containing unfiltered liquid therein, said first chamber being divided into an upper part and a lower part;

    (c) a second chamber capable of collecting filtered liquid therein, said second chamber being in fluid flow relationship with the lower part of the first chamber;

    (d) a means for filtering liquid within the first chamber prior to flowing into the second chamber; and

    (e) a port leading from the second chamber into the interior of said filtrate tube, said port being disposed a sufficient distance above the bottom of the second chamber whereby the lower part of said first chamber is prevented from filtering to dryness.

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