Patents Assigned to Endura Pumps International, Inc.
  • Modular containment apparatus for adjusting axial position of an impeller in a magnetically coupled apparatus
    Patent number: 5846049
    Abstract: A pump is provided which includes an axially adjustable impeller in order to adjust the distance between the impeller and a housing section adjacent the impeller and thereby increase pump efficiency. The pump also can be made to have a removable module including the impeller, a shaft for the impeller and an impeller driving member positioned on the shaft.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: December 8, 1998
    Assignee: Endura Pumps International, Inc.
    Inventor: Francis A. DuPuis
  • Seal for pump having an internal gas pump
    Patent number: 5567132
    Abstract: Pump apparatus having a wear end and a pump end is provided with a seal-pump for preventing liquid being pumped from entering the wear end. An internal pump is positioned between the wear end and the pump end of sealless pumps to direct small quantities of gas from the wear end to the pump end at a pressure which prevents liquid in the pump end to pass into the wear end. A seal is provided on a stationary ring of the internal pump which prevents fluid being pumped from contacting working portions of the internal pump.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: October 22, 1996
    Assignee: Endura Pumps International, Inc.
    Inventors: Francis A. Dupuis, Ali M. Nasr