ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,080, issued on Nov. 25, was assigned to Voith Patent GmbH (Heidenheim, Germany).
"Rotor rim for an electric machine" was invented by Jonas Steegmaier (Lonsee, Germany) and Daniel Ludwig (Herbrechtingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor rim for an electric machine, having at least two solid annular plates and axially oriented tension bolts connecting the annular plates with each other, wherein on the outer circumference of annular plates grooves are arranged for accommodating rotor poles, for each rotor pole at least two tension bolts are provided, between each two adjacent annular plates a layer of intermediate ring ele...