Patents by Inventor John H. Ornberg

John H. Ornberg 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 apparatus for preventing fluid leakage from a gear case
    Patent number: 4848518
    Abstract: A method and apparatus is disclosed for preventing leakage of a fluid such as a lubricant from a gear case. In this method and apparatus, the ambient pressure inside the gear case is maintained slightly lower than the air pressure outside the gear case. By maintaining this pressure differential, air flows from outside the gear case into the gear case through any openings from which lubricant would otherwise leak. Leakage of the lubricant through such openings in the gear case is thereby prevented.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: July 18, 1989
    Assignee: AM International, Inc.
    Inventors: John H. Ornberg, Glenn A. Guaraldi