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:
Aug. 18, 2009
Filed:
Sep. 25, 2006
Akira Manno, Kobe, JP;
Yukihide Ohya, Kobe, JP;
Akira Manno, Kobe, JP;
Yukihide Ohya, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Abstract
A heavy duty radial tire comprises a belt layer having first and third plies of cords arranged at an angle of 10 to 45° relative to the tire equator, and a second ply of cords arranged at an angle of at most 5° relative to the tire equator, the widths Wand Wof the first and third plies are at least 85% of a ground contact width Tw and the width Wof the second ply is at least 70% of the width Tw and is smaller than the widths Wand W; and a pair of reinforcing rubber layers disposed between the first and third plies so as to extend axially outwardly from the axially outer ends of the second ply comprising an axially inner portion having E*1 of 8.0 to 14.0 MPa, and an axially outer portion having E*2 of 6.0 to 12.0 MPa smaller than E*1.