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:
Oct. 20, 2015
Filed:
Jul. 02, 2009
Eric Berger, Loubeyrat, FR;
Sébastien Fugier, Saint-Bonnet-Pres-Riom, FR;
Mattieu Bonnamour, Pont Du Chateau, FR;
Claude Audebert, Les Martres sur Morge, FR;
Eric Berger, Loubeyrat, FR;
Sébastien Fugier, Saint-Bonnet-Pres-Riom, FR;
Mattieu Bonnamour, Pont Du Chateau, FR;
Claude Audebert, Les Martres sur Morge, FR;
Compagnie Generale Des Etablissements Michelin, Clermont-Ferrand, FR;
Michelin Recherche Et Technique S.A., Granges-Paccot, CH;
Abstract
Directional tire tread having a rolling surface, this tread being provided with a plurality of incisions bounded by mutually opposing walls, each of said walls entering the rolling surface in such a way as to form an edge called the leading edge of an element of material, corresponding to the edge that enters the contact patch first, and an edge called the trailing edge of the same element of material, corresponding to the edge that enters the contact patch after the leading edge, each incision comprising at least one segment bounded by mutually opposing walls that make, with a direction perpendicular to the rolling surface passing through the intersection of the incision with the rolling surface, a negative average angle α whose absolute value is less than 55°, this tread being characterized in that this segment of negative angle α exits the rolling surface via an enlarged end portion bounded by mutually opposing first and second faces, the angles of the first face and second face being positive and not equal to each other.