Patents by Inventor M. Brian Bergsten

M. Brian Bergsten 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).

  • Cooling system for ramjet engine
    Patent number: 4275857
    Abstract: A ramjet powered vehicle having a bleed slot in the subsonic diffuser, for the ramjet combustor, which supplies air to a turbine for supplying power to vehicle accessories. A vortex tube is provided between the bleed slot and the turbine to provide a cool air supply. Radar absorbing material is positioned adjacent ramjet inlet with a cooling duct provided to supply cooling air from the vortex tube to the ramjet inlet cowl lip to provide cooling for the radar absorbing material.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: June 30, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: M. Brian Bergsten