ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,720, issued on May 20, was assigned to Valeo eAutomotive Germany GmbH (Erlangen, Germany).
"Wedge element for an electric excited rotor" was invented by Christian Finger-Albert (Erlangen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor including a rotor shaft, a rotor body formed of a stack of laminations having a plurality of teeth projecting radially, a field coil wound around each tooth of the plurality of teeth, and a plurality of wedge elements each having two lateral sides configured to come against respectively a corresponding tooth. A convex portion and a projecting portion adjoining the convex portion are arranged on each one...