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:
Jul. 24, 2018
Filed:
Dec. 04, 2014
Compagnie Generale Des Etablissements Michelin, Clermont-Ferrand, FR;
Michelin Recherche ET Technique S.a., Granges-Paccot, CH;
Frédéric Bourgeois, Clermont Ferrand, FR;
François-Xavier Bruneau, Clermont-Ferrand, FR;
Patrice Fraysse, Clermont-Ferrand, FR;
Emmanuel Igier, Clermont-Ferrand, FR;
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand, FR;
Abstract
Tire comprising a tread which has at least one central rib (-) and two lateral ribs (-) which are separated by circumferential grooves (-), in which tire a first lateral rib () adjacent to the outer axial edge of the tread and at least one (and preferably each) of the central ribs have a first portion () the axial width of which exceeds 2 % of the axial width of the relevant rib made and the depth of which is less than that of the relevant rib, from a rubber composition containing an elastomer and a reinforcing filler consisting predominantly of carbon black, and an axially adjacent second portion () made of a rubber composition containing an elastomer and a reinforcing filler a minority proportion of which consists of carbon black, in which the rubber compositions that make up the second portion of the first lateral rib and the second portion of the central rib all have a tanvalue which is higher than the tanvalue of the rubber compositions that form the first portion of the first lateral rib and the first portion of the central rib, the tanvalues being measured at a temperature of 0° C. and under a stress of 0.7 MPa.