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:
Sep. 06, 1994
Filed:
Jul. 24, 1992
Masanao Yoshida, Akashi, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A pneumatic radial tire with a sum of tire maximum width W and tire maximum diameter D defined in a range from 750 mm to 1250 mm has a belt layer disposed radially outside a carcass. On the tire meridian section, a tread surface is curved along a single arc with a curvature radius TR1 having a center on the tire's equatorial plane, and a radially outer surface of the belt layer is curved along a single arc with a curvature radius BR1 having a center on the tire's equatorial plane. The curvature radius TR1 is larger than the curvature radius BR1, and a product of the curvature radius TR1 and the curvature radius BR1, that is, (TR1.times.BR1) is in a range from 33.7.times.10.sup.4 mm.sup.2 to 45.0.times.10.sup.4 mm.sup.2.