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:
Jun. 17, 2025
Filed:
Mar. 10, 2021
Piaggio & C. S.p.a., Pontedera, IT;
Marco Ghelardoni, Pontedera, IT;
Francesco Mennella, Pontedera, IT;
PIAGGIO & C. S.P.A., Pontedera, IT;
Abstract
A clutch () includes a housing () connected to a drive input member (). First friction discs () are mounted in the housing and rotate therewith. Second friction discs () are mounted on a driven member (). A pressure plate () is elastically stressed toward the driven member to compress the first and the second friction discs () against one another. Cam profiles () integral with the driven member and with the pressure plate, generate a thrust to move the driven member and pressure plate away from each other when it is necessary to reduce the pressure exerted by the pressure plate on the first and second friction discs. An angular stroke limiter limits the relative rotation between the driven member and the pressure plate and thereby limits the movement of the pressure plate away from the driven member).