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Vortex attractor

  • US 6,595,753 B1
  • Filed: 05/21/1999
  • Issued: 07/22/2003
  • Est. Priority Date: 05/21/1999
  • Status: Expired due to Term
First Claim
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1. A method for providing a fluid flow creating a low pressure region comprising the steps of:

  • providing one or more rotatable impeller vanes, said impeller vanes being pitched at variable angles;

    rotating said impeller vanes;

    reducing parasitic fluid flow through said impeller vanes;

    constraining said low pressure region to a desired location; and

    controlling the angle of pitch of said impeller vanes.

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