Resilient tires and wheels – Tires – resilient – Anti-skid devices
Reexamination Certificate
2007-12-25
2007-12-25
Maki, Steven D. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Anti-skid devices
C152S209800, C152S209180
Reexamination Certificate
active
10965916
ABSTRACT:
A tire tread includes a plurality of elements in relief (rib and/or block) having lateral faces, and a contact face intended to come into contact with the roadway during travel. The intersection of each lateral face with the contact face forms a ridge. The tread also includes a plurality of cutouts each defined by opposing main faces. Each tread pattern element is formed with at least one base mix. As viewed in section in a plane containing the thickness of this tread, at least one face defining at least one cutout is formed at least in part with a covering mix. The base mix exhibits a gripping action on wet ground which is lower than a gripping action of the covering mix on the same ground.
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Bruant Rémi
Vasseur Didier
Buchanan & Ingersoll & Rooney PC
Maki Steven D.
Michelin & Recherche et Technique S.A.
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