Patents Represented by Attorney V. F. Hauschild
  • Patent number: 4047838
    Abstract: Pitch control linkage for the upper rotor of coaxial counterrotating rotors utilizes conventional swashplate, control rod and servomotor elements for changing blade pitch but without the conventional rotating and non-rotating scissors for reacting swashplate torque. This is accomplished by the use of rotating and non-rotating walking beams and combination torque reacting control rods between the walking beams and the rotatable and non-rotatable swashplate elements. Means are also disclosed for shimming the rotatable walking beams to achieve pre-track adjustment of the pitch of individual blades.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: September 13, 1977
    Assignee: United Technologies Corporation
    Inventors: Donald L. Ferris, Robert L. Faiz