ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,346, issued on Jan. 13, was assigned to RATIER-FIGEAC SAS (Figeac, France).
"Protection system" was invented by Adele Boche (Albiac, France) and Romain Bouloc (Saint Felix, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating a variable pitch propeller system for an aircraft. The method includes: receiving aircraft flight information; performing a virtual pitch calculation to determine a virtual propeller pitch or virtual blade angle from the aircraft flight information; and performing a pitch protection process in response to low virtual propeller pitch or virtual blade angle being determined."
The patent was filed on Aug. 8...