Patents by Inventor Oskar Gerber

Oskar Gerber 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 for controlling the air pressure in a sound-proofed hangar for testing jet engines
    Patent number: 3941205
    Abstract: A method and means of controlling the air pressure in a sound-proofed hangar in which jet engines are tested, the amount of cooling air sucked into the exhaust gas silencer by the injection action of the exhaust gas jet being adjusted by varying the flow resistance or the free flow cross-section of the area difference between the inlet cross-section of the exhaust gas silencer and the exhaust jet cross-section by inserting screens so that the pressure in the sound-proofed hangar does not drop below a predetermined value.
    Type: Grant
    Filed: June 25, 1974
    Date of Patent: March 2, 1976
    Assignee: Granges Nyby AB
    Inventors: Oskar Gerber, Karl Gosta Agmen