ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,457, issued on Aug. 5.
"Method and device for forming metal armatures of electric motors or similar consisting of packs of sheets with subgroups of solidarized sheets" was invented by Cesare Librici (Savona, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a plant for making packs of metal sheets forming rotors or stators of electric machines or the like by stacking a predetermined number of metallic sheets and stably connecting those sheets along at least two weld beads in opposing or different angular positions, include providing at least one subgroup of the metallic sheets defining the pack of sheets, and disposing, at least at on...