US Patent Issued to ROLLS-ROYCE DEUTSCHLAND on July 28 for "Method for producing a nonlinear cylindrical spring and use of such a spring" (German Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,693,689, issued on July 28, was assigned to ROLLS-ROYCE DEUTSCHLAND LTD & CO KG (Blankenfelde-Mahlow, Germany).

"Method for producing a nonlinear cylindrical spring and use of such a spring" was invented by Gregor Christoffer Gebel (Ludwigsfelde, Germany) and Carsten Clemen (Mittenwalde, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a nonlinear cylindrical spring produced by winding or coiling a spring wire having wire diameters varying over its length, and formed from a blank with a constant diameter. A drum roller shapes the blank and, between the outer lateral surface of an inner rotor driven in rotation about a centra...