US Patent Issued to PRATT & WHITNEY CANADA on July 14 for "Controlling rate of rotor feather by system secondary to primary blade angle control system" (Canadian Inventor)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,527, issued on July 14, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).

"Controlling rate of rotor feather by system secondary to primary blade angle control system" was invented by Jagoda Krzywon (Longueuil, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "The rotor control system includes a main control valve having an inlet for receiving liquid and an outlet for issuing liquid to a rotor pitch change actuator. The rotor control unit is configured to control flow of liquid from the inlet to the outlet to modify pitch angle of rotor blades. A feathering system with a first conduit connected in fluid communication with the out...