ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,588, issued on Sept. 16, was assigned to ZF Friedrichshafen AG (Friedrichshafen, Germany).
"Drive unit" was invented by Steffen Kraft (Blaustein, Germany), Miran Percic (Heubach, Germany), Rudiger Nierescher (Schwabisch Gmund, Germany) and Klaus Kraft (Blaustein, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive unit (10) for a manually driven vehicle, in particular a bicycle or an EPAC, includes a housing (12), an electric motor (18) with a stator (44) and a rotor (46), a stator support (48), and an electronic unit (50). The stator support (48), the stator (44), the rotor (46), and the electronic unit (50) are designed in the form of ...