Patents by Inventor Alan P. Liebing

Alan P. Liebing 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).

  • Gyroscopic apparatus having three-axis inertial platform with rapid warm-up
    Patent number: 4292854
    Abstract: An inertial platform carries at least one dynamically-tuned free-rotor gyro and is mounted in a three-axis gimbal system. Accelerometers are carried on the platform with their sensitive axes aligned with the two sensitive axes of the gyro. During alignment of the platform, and while the gyro motor is being run up to speed, the output of the gyro pick-off on each axis is combined with the output of the accelerometer on the other axis and applied through a resolver to the appropriate gimbal torque motor.
    Type: Grant
    Filed: January 19, 1979
    Date of Patent: October 6, 1981
    Assignee: Ferranti Limited
    Inventor: Alan P. Liebing
  • Gyroscopic apparatus
    Patent number: 4266431
    Abstract: Gyroscopic apparatus comprises a gyroscopic device having two mutually perpendicular sensitive axes. The device is suspended in a two-axis gimbal system by means of cross-spring pivots of zero stiffeners. The gimbal system is further supported by a subsidiary suspension about two horizontal axes, and the subsidiary suspension carries damping means to damp movements of the gimbal system.
    Type: Grant
    Filed: December 4, 1979
    Date of Patent: May 12, 1981
    Assignee: Ferranti Limited
    Inventor: Alan P. Liebing
  • Gyroscopic apparatus
    Patent number: 4217787
    Abstract: A free rotor gyroscope has a gimbal supported for limited rotation about a rotatable shaft by a first flexure suspension and a rotor attached to the gimbal by a second flexure suspension. Pickoff means rotate with the gimbal and detect its movements about its axis of suspension.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: August 19, 1980
    Assignee: Ferranti Limited
    Inventors: Alan P. Liebing, James N. G. Scott, Brian R. Shackleton