Patents by Inventor Berwin A. Guttormsen

Berwin A. Guttormsen 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).

  • Dual velocity strainer
    Patent number: 5658459
    Abstract: A pipe-mounted dual velocity strainer is disclosed including a bottom strainer portion to provide a first velocity flow path in one direction and a top strainer portion to provide a second velocity flow path in the opposite direction. A check valve and coaxial conduit between the two strainer portions provide means for obtaining different velocities dependent upon the direction of flow. The invention is utilized in fluid distribution and collection for ion exchange and filtration systems.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: August 19, 1997
    Assignee: Unites States Filter Corporation
    Inventor: Berwin A. Guttormsen