ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,780,351, issued on Nov. 3, was assigned to SRAM LLC (Chicago).
"Electric bicycle drive unit fastening assembly" was invented by Axel Hemsing (Neuss, Germany), Kai Venhoff (Neuss, Germany) and Dietmar Greven (Neuss, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric bicycle drive unit mounting arrangement for attaching an electric drive unit at a drive receptacle of a bicycle frame is provided. The bicycle frame has a fixed bearing fastening frame leg and a parallel loose bearing frame leg. A drive unit housing has a fixed bearing housing flange and a parallel loose bearing housing flange. The fixed bearing housing flange is frictionally a...