Patents by Inventor Arne E. Swenson

Arne E. Swenson 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).

  • Centrifugal pump improvements
    Patent number: 7125221
    Abstract: An improved mechanism is provided for adjusting the clearance between the outer edges of impeller vanes of a centrifugal pump and the interior surface of an adjacent intake plate. The impeller having the vanes is mounted as an assembly to a back plate that can be secured to a casing or housing to which the intake plate is mounted. Threaded adjusters allow adjustment of the clearance between the impeller vanes and the intake plate. Additional modifications include a modified seal design to prevent material from clogging relatively rotatable seal components, a modified intake plate with a shallow recess to increase chopping effectiveness and pump efficiency, impeller vanes with a unique shape to achieve a high head, and a self-priming pump.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: October 24, 2006
    Assignee: Vaughan Co., Inc.
    Inventors: Glenn Dorsch, Kent H. Keeran, Arne E. Swenson
  • Centrifugal pump improvements
    Publication number: 20020146319
    Abstract: An improved mechanism is provided for adjusting the clearance between the outer edges of impeller vanes of a centrifugal pump and the interior surface of an adjacent intake plate. The impeller having the vanes is mounted as an assembly to a back plate that can be secured to a casing or housing to which the intake plate is mounted. Threaded adjusters allow adjustment of the clearance between the impeller vanes and the intake plate. Additional modifications include a modified seal design to prevent material from clogging relatively rotatable seal components, a modified intake plate with a shallow recess to increase chopping effectiveness and pump efficiency, impeller vanes with a unique shape to achieve a high head, and a self-priming pump.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 10, 2002
    Inventors: Glenn Dorsch, Kent H. Keeran, Arne E. Swenson