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:
Jan. 30, 2007
Filed:
Jun. 05, 2002
Kazuomi Kobayashi, Kodaira, JP;
Shuji Ando, Kodaira, JP;
Kazuomi Kobayashi, Kodaira, JP;
Shuji Ando, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
This invention is concerned with a radial tire, particularly a heavy duty radial tire aiming at the improvement of durability, and is characterized by rendering a ratio W/Wof width Wof a belt layer located side a carcass to width Wof the remaining belt layer in small slant belt layers arranged at a width corresponding to 0.25–0.50 times a tread width in a widthwise direction of the tire, whereby growth and progress of cracks in the vicinity of cord ends of cords used in the belt resulting in separation failure at widthwise ends of the belt are effectively prevented to overcome a weak point in the tread reinforcement of the radial tire.