ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,902, issued on Sept. 23, was assigned to SAFRAN HELICOPTER ENGINES (Bordes, France).
"Transfer of power between the high-pressure shaft and the low-pressure shaft of a turbomachine" was invented by Romain Jean Gilbert Thiriet (Moissy-Cramayel, France), David Bernard Martin Lemay (Moissy-Cramayel, France) and Fabien Mercier-Calvairac (Moissy-Cramayel, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for controlling a power-transfer system for the transfer of power between a high-pressure shaft and a low-pressure shaft of a turbomachine of an aircraft, including a fatigue analysis module analysing the fatigue of the turboma-chine and de...