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Uninterrupted flow pump apparatus and method

  • US 20030065284A1
  • Filed: 11/08/2002
  • Published: 04/03/2003
  • Est. Priority Date: 09/03/1999
  • Status: Active Grant
First Claim
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1. A method for providing a uniform and controlled flow of fluid comprising:

  • providing a sealed flexible chamber adapted to contain fluid disposed within an outer chamber, wherein said sealed flexible chamber comprises a fluid path between said sealed flexible chamber and the exterior of said outer chamber and wherein said outer chamber is adapted to provide a space containing a pressure sensitive medium around said sealed flexible chamber;

    providing means for continuously increasing or decreasing the pressure in a uniform and controlled manner within said space around said sealed flexible chamber; and

    changing the pressure within said space around said sealed flexible chamber such that fluid is displaced into or out of said sealed flexible chamber in a uniform and controlled manner without or within said sealed flexible chamber.

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