ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,466, issued on March 31, was assigned to SAFRAN AERO BOOSTERS SA (Belgium).
"Sandblasting mask" was invented by Matthieu Edouard Henri Droeller (Herstal, Belgium), Michael Leon Josephe Trafalski (Herstal, Belgium) and Kevin Francois Michel Malaise (Herstal, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a sandblasting mask (50) as well as its use for the sandblasting of blade tips in a method comprising a step of positioning a plurality of sandblasting masks (50), each blade passing through an opening (58) of a mask and each blade tip extending projecting from the respective mask, the masks being assembled two by tw...