ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,772, issued on Aug. 4, was assigned to SAFRAN HELICOPTER ENGINES (Bordes, France).
"Process for three-dimensional printing with variable cross-section" was invented by Laurent Chares (Moissy-Cramayel, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process for three-dimensional printing of a workpiece including a succession of steps for producing a layer of the workpiece by means of a nozzle which has an output cross-section along a path of the nozzle, wherein, during at least one step for producing a layer, use is made of at least one nozzle, an output portion of which has an output cross-section which is variable between a first maximum cro...