The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2018
Filed:
Jul. 04, 2014
Compagnie Generale Des Etablissements Michelin, Clermont-Ferrand, FR;
Michelin Recherche ET Technique S.a., Granges-Paccot, CH;
David Olsommer, Clermont-Ferrand, FR;
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand, FR;
Abstract
An electric power-assist device for a bicycle includes an electrical machine with a rotor, a connector structured to attach to the electrical machine, a battery arranged to power the electrical machine, a controller arranged to control the electrical machine, a drive pinion arranged to be driven by the rotor of the electrical machine, and a supporting structure. The drive pinion is structured to mesh tangentially with a complementary toothing integral to a tire of a rear wheel of the bicycle. The connector is borne by the supporting structure. The supporting structure includes arms attachable to an axle of the rear wheel of the bicycle.