Patents Assigned to IMPSA International Inc.
  • Hydraulic seal for rotary pumps
    Patent number: 6595743
    Abstract: A rotary blood pump comprising at least one rotor, a housing and at least one conduit in the rotor for conducting a by-passed portion of the blood into a clearance between the rotor and the housing, the portion of blood consisting mostly of plasma without red cells, thus preserving the solid particles and red cells from damage.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: July 22, 2003
    Assignee: IMPSA International Inc.
    Inventors: Lev Kazatchkov, Lucas Varela
  • Continuous flow rotary pump
    Patent number: 6247892
    Abstract: A continuous flow axial-flow pump for impelling a fluid under a continuous pattern without kinetic side effects to minimize and eliminate damage to fluid, the pump comprising two axial adjacent rotors rotating in opposite directions.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: June 19, 2001
    Assignee: IMPSA International Inc.
    Inventors: Lev Kazatchkov, Lucas Varela
  • Water turbines and water flow transition members therefor
    Patent number: 5261787
    Abstract: A water turbine is shown having a water transition member in the form of a partial cone which is positioned on the downstream side of the turbine runner. The cone is mounted independently of rotation of the turbine member and may be rotated by a motor. The partial cone may have ridges or blades which may be retractable.
    Type: Grant
    Filed: January 17, 1992
    Date of Patent: November 16, 1993
    Assignee: Impsa International, Inc.
    Inventor: Genadiy M. Morgunov