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:
Oct. 27, 1992
Filed:
Jun. 27, 1991
Kazuyoshi Saneto, Hadano, JP;
Akinori Tokieda, Fujisawa, JP;
Kunihiko Kakigi, Atsugi, JP;
Hiroaki Matsuzaki, Kawasaki, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
A run flat pneumatic radial tire having a flatness of 50% or less, comprising a reinforcing liner layer comprised of a high-hardness rubber having a crescent cross section disposed on the inside of a side wall portion and an inner liner layer comprising a rubber composition mainly composed of a butyl rubber provided all over the internal surface of the tire, wherein the inside of the inner liner layer in at least a region covering said reinforcing liner layer is covered with a rubber layer comprising a rubber composition mainly composed of a diene rubber having a polybutadiene rubber content of 50% by weight or more based on the rubber component.