Patents by Inventor Joseph C. Simmons

Joseph C. Simmons 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).

  • Redundant inertial measurement system
    Patent number: 4125017
    Abstract: A system providing economical redundant strap-down inertial measurement capability in a space navigation system. By appropriate orientation of two-degree-of-freedom dry tuned rotor gyros, the system is able to achieve complete redundancy utilizing only three gyro units. With this orientation, both orthogonal and skewed rate data are available. Not only are the necessary computations materially simplified, but this system also provides the necessary conditions for failure detection and isolation.
    Type: Grant
    Filed: July 29, 1977
    Date of Patent: November 14, 1978
    Assignee: McDonnell Douglas Corporation
    Inventors: Henry J. Dhuyvetter, Paul D. Engelder, Joseph C. Simmons