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:
Mar. 19, 2013
Filed:
Nov. 06, 2008
Hiroshi Matsui, Kobe, JP;
Chieko Aoki, Kobe, JP;
Takaaki Ishida, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A run-flat tire capable of reducing weight and enhancing its uniformity. The run-flat tireprovides a toroidal carcassextending from a tread portionto the bead core of each bead portionthrough each of sidewall portionsand a pair of side reinforcing rubbersarranged inside the carcassand extending along the sidewall portionsin the tire radial direction inwardly and outwardly. In the outer surface of the tread portion, pattern elements are arranged, thereby forming a pitch pattern. Each of the side reinforcing rubberprovides with recessescircumferentially spaced on the inner surface of side reinforcing rubber facing the tire cavity. The total number (n) of recesseson each of the side reinforcing rubberis 0.70 to 1.30 times the total number of pattern elements.