Patents by Inventor Joseph L. Pratt

Joseph L. Pratt 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).

  • Automated helicopter maintenance monitoring
    Patent number: 5239468
    Abstract: An automated helicopter maintenance monitoring system (20), which is comprised of a flight data recorder subsystem (22) and a maintenance computer subsystem (24), collects data from a plurality of sensors in order to facilitate helicopter maintenance. The system (20) processes vibration data, rotor track data, rotor phase data, and flight sensor data to determine when a helicopter fault has occurred or will occur. Additionally, the system (20) can prompt a pilot/maintainer to fly the helicopter through specific operational states in order to aid in the maintenance process.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: August 24, 1993
    Assignee: United Technologies Corporation
    Inventors: Richard A. Sewersky, George A. Molnar, Joseph L. Pratt