US Patent Issued to RATIER-FIGEAC on May 6 for "Propeller blade pitch change actuation system" (French Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,321, issued on May 6, was assigned to RATIER-FIGEAC SAS (Figeac, France).

"Propeller blade pitch change actuation system" was invented by Thibaut Marger (Beduer, France) and Romain Bouloc (Saint-Felix, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pitch change actuation system for varying a propeller blade pitch includes: an actuator body defining an interior volume; and a chamber separator located within the interior volume of the actuator body and dividing the interior volume into a first chamber and a second chamber, the two chambers being fluidly separated by the chamber separator. The first and second chambers are configured to receiv...