Patents by Inventor Harry Marsh

Harry 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).

  • Fluid film journal bearings
    Patent number: 4880320
    Abstract: A hydrodynamic gas journal bearing system using rotating bushes which are able to radially move relative to a shaft, the movement being controlled by a spring support system, and in which a degree of dynaMic imbalance of the rotating system is incorporated, these features and the design of the system being together such as to suppress the onset of self-excited instability (half-speed whirl) of the rotating system.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: November 14, 1989
    Assignee: British Aerospace plc
    Inventors: Derrick J. Haines, Harry Marsh