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. 13, 1981
Filed:
Dec. 19, 1978
Applicant:
Inventors:
Yukihisa Uemura, Oji, JP;
Shoji Miyoshi, Nakamiya, JP;
Assignee:
The Toyo Rubber Industry Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
1523 / ; 1523 / ; 152359 ; 1523 / ;
Abstract
A radial tire for heavy duty use in vehicles. The tire has a carcass having a two-ply structure using polyester cords of more than 4500d as the ply cords. The spacing of the cords between the first and second plies at approximately the maximum tire width, is nearly 1.2-1.7 times as large as cord diameter. The edge portions of the ply cords turned up around bead cores are coated with the same rubber as ply coating rubber, an extension of the edge covering rubber from the edge of the ply cords is three times or more as large as cord diameter.