Patents by Inventor Kurt M. McCourt

Kurt M. McCourt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pump with air purging and self-cleaning features
    Patent number: 6059535
    Abstract: A pump installation used to maintain liquid level in a tank by pumping down liquid introduced into the tank with rotation of an impeller about a vertical axis features an air purging flow defined by axial openings through the pump impeller and an annular clearance space between the impeller drive and the pump housing cover, the space disposed above the impeller axial openings. A support sleeve surrounding the impeller drive and secured to the pump motor and tank top has openings at the bottom thereof which sets up a flushing liquid flow to eliminate solids forced up through the clearance space and into the sleeve interior.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: May 9, 2000
    Assignee: Process Systems, Inc.
    Inventors: John M. Wichmann, Kurt M. McCourt