US Patent Issued to SAFRAN AIRCRAFT ENGINES on Feb. 17 for "Pitch-change mechanism with pitch-locking device comprising a satellite roller screw" (French Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,353, issued on Feb. 17, was assigned to SAFRAN AIRCRAFT ENGINES (Paris).

"Pitch-change mechanism with pitch-locking device comprising a satellite roller screw" was invented by Jerome Paul Marceau Mace (Moissy-Cramayel, France), Christophe Marcel Lucien Perdrigeon (Moissy-Cramayel, France) and Jean Charles Olivier Roda (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a pitch-change mechanism (70) which comprises a frame (72), a moving part (102) which can be translated along a longitudinal axis (X), and a locking device (160). The locking device (160) comprises a support member (162) which is translatab...