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. 14, 2024
Filed:
Sep. 04, 2019
The Goodyear Tire & Rubber Company, Akron, OH (US);
Andreas Frantzen, Trier, DE;
Carolin Anna Welter, Schleich, DE;
Anne Therese Peronnet-Paquin, Luxembourg, LU;
Mingliang Du, Copley, OH (US);
Stephan Rodewald, Canal Fulton, OH (US);
Betul Buehler, Akron, OH (US);
Benjamin Isaiah Garn, Norton, OH (US);
Daniel Vojtko, Akron, OH (US);
Jungmee Kang, Macedonia, OH (US);
Dinesh Chandra, Hudson, OH (US);
THE GOODYEAR TIRE & RUBBER COMPANY, Akron, OH (US);
Abstract
A self-inflating tire assembly includes an air tube mounted within a tire sidewall groove. The air tube is in contacting engagement with opposite angled groove surfaces surrounding the air tube. A segment of the air tube is flattened from an expanded diameter to a flat diameter by bending and compression of the groove in a rolling tire footprint to force air evacuated from the flattened segment along a tube air passageway. The sidewall groove extends into an annular, axially extending, sidewall surface such as an axially oriented surface of a tire chafer protrusion located in non-contacting relationship with the rim. The air tube is extruded from a rubber composition, the rubber composition comprising: a diene based rubber; from 0.25 to 5 parts by weight, per 100 parts by weight of rubber (phr), of a self-lubrication agent capable of migrating from the rubber composition to the groove surface and disposing on the groove surface as a liquid; and from 1 to 15 parts by weight, per 100 parts by weight of rubber (phr), of a vulcanization modifier for use in the second rubber composition include α,ω-bis(N,N′-dihydrocarbylthiocarbamamoyldithio)alkanes, bismaleimides, and biscitraconimides.