US Patent Issued to ZF Friedrichshafen on Oct. 7 for "Bottom-bracket gear" (German Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,788, issued on Oct. 7, was assigned to ZF Friedrichshafen AG (Friedrichshafen, Germany).

"Bottom-bracket gear" was invented by Thomas Riedisser (Sigmarszell, Germany), Ulrich Doerr (Constance, Germany), Peter Ziemer (Bad Woerishofen, Germany), Leschek Debernitz (Eriskirch, Germany), Christoph Margraf (Markdorf, Germany), Hagen Doepfert (Lindau, Germany), Uwe Schraff (Markdorf, Germany), Uwe Griesmeier (Markdorf, Germany), Michel Wiemer (Weingarten, Germany) and Markus Strobel (Ravensburg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An arrangement for actuating a shift element for a bottom bracket gearbox (1) includes a shift ring (4) rotat...