ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,557, issued on April 14, was assigned to Innomotics GmbH (Nuremberg, Germany).
"Rotor with different sectors" was invented by Klaus Buttner (Hollstadt, Germany), Klaus Kirchner (Ostheim, Germany) and Matthias Warmuth (Windshausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor of a dynamo-electric permanently excited machine has a predefinable number of poles, with the laminated core having laminations, which each form sectors with at least two different configurations in a predefinable axial order and rotation or axial order and rotation and overlap. The laminations, independent of the configuration of the sectors, each have a shaf...