Patents by Inventor Thomas Ringblom

Thomas Ringblom 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).

  • Impeller having a hub assembled from a plurality of identical parts
    Patent number: 6176680
    Abstract: The invention concerns an impeller or a propeller for a rotary machine such as a pump, a turbine or a propulsion unit. The impeller comprises a hub (1) and an intermediate part put together by a number of identical hub sections (3) with mounted vanes (4). The partition between two hub sections (3) follows a curve which is substantially axially directed.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: January 23, 2001
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Thomas Ringblom, Andreas Andersson