Patents by Inventor Stephen N. Finger

Stephen N. Finger 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).

  • Constant thrust retention turbine temperature limit system
    Patent number: 5142860
    Abstract: A control system for controlling the margin of temperature between the turbine's operating temperature and temperature limit throughout the engine operating range is manifested by utilizing a trim logic schedule that provides a constant margin value for each operating condition of the gas turbine engine. The system allows the engine to achieve the requisite performance while maintaining durability requirements.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: September 1, 1992
    Assignee: United Technologies Corporation
    Inventors: Mark A. Strange, Walter A. Ledwith, Jr., Johnny B. Davis, Stephen N. Finger, Gerald Bracci
  • Self-retained platform cooling plate for turbine vane
    Patent number: 4712979
    Abstract: A turbine stator vane assembly for gas turbine or turbojet engines has an improved structure for retention of a cooling impingement plate. Two inwardly directed flanges are added to the wall-like extensions extending from the bottom of the platform upon which the vane is mounted. The cooling impingment plate is resiliently snapped into place between pin fins on the bottom of the platform and the flanges.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: December 15, 1987
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Stephen N. Finger