Planetary Gearing Connecting Rotatable And Non-rotatable Parts Patents (Class 416/160)
  • Pitch change mechanism
    Patent number: 3964839
    Abstract: The torque to the blades for pitch change movement of a variable pitch fan of the type having a harmonic pitch change actuator is increased by coupling both the outputs of the rigid spline and flexispline to drive the blade for pitch change movement.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: June 22, 1976
    Assignee: United Technologies Corporation
    Inventor: Edward H. Kusiak