Patents by Inventor Knut Minsaas

Knut Minsaas 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).

  • Method and means to prevent cavitation erosion in propeller ducts
    Patent number: 4003671
    Abstract: The invention relates to a method and a means to prevent cavitation and/or erosion in propeller ducts, and the invention is generally characterized in that air is supplied to the so-called "gap cavities" which are formed at the blade extremities or tips and between blade tips and the duct surface.
    Type: Grant
    Filed: November 26, 1974
    Date of Patent: January 18, 1977
    Assignee: Norges Skipsforskningsinstitutt
    Inventors: Erling Huse, Knut Minsaas