Patents by Inventor Francis X. Marsh

Francis X. Marsh 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).

  • Turbine bearing lubrication system
    Patent number: 4144950
    Abstract: A bearing lubrication system for use in a gas turbine engine which utilizes empellers on the drive shaft to pump a lubricant into a lubricant transfer housing. At least one passageway is formed in the transfer housing which directs the lubricant from the pump to a bearing. The lubricant passes through the bearing and thereafter is returned to the pump for the beginning of a new lubrication cycle.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: March 20, 1979
    Assignee: Teledyne Industries, Inc.
    Inventors: Thomas D. Moyer, Raymond Smith, Aldo J. Urbani, Harley D. Greenburg, Glenn W. Hamburg, Francis X. Marsh, Robert S. Van Huysen