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:
Jul. 21, 1992
Filed:
Apr. 12, 1990
Tetsuhiro Fukumoto, Kobe, JP;
Kiyoshi Ochiai, Kobe, JP;
Midori Inaoka, Nishinomiya, JP;
Akihiro Takeuchi, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kyogo, JP;
Abstract
A radial tire is comprised of a belt, disposed between a carcass and a tread, having metal cord plies including a first belt ply, a second belt ply, a third belt ply and a fourth belt ply which are arranged radially outwardly in that order, wherein the second belt ply has a curvature concentric with the curvature of a radially outer surface of the tread and a width (B2) of at least 93% of the tread width (W), and the third belt ply has a width (B3) smaller than the width (B2) and is provided at both ends with spaced parts 1.5 to 4.5 mm distance apart from the second belt ply, the third belt ply, in a central part having a width (CR) of 60 to 70% of the width (B3) and both end parts each having a width (b) of 5 to 15% of the width, the third belt ply having a curvature concentric with the curvature of the radially outer surface of the tread.