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:
Apr. 28, 1981
Filed:
Mar. 26, 1980
Masaru Abe, Sayama, JP;
Bridgestone Tire Co., Ltd., Tokyo, JP;
Abstract
A highly durable pneumatic tire comprising a carcass body formed by a number of laminated bias laid plies each including rubberized organic textile cords is disclosed. The carcass body is composed of at least two kinds of ply groups whose cords are the same in diameter, but different in the number of twists per unit length, the cords of the outermost ply group of the carcass having the number of twists which is 5% to 30% times larger than the number of twists of the ply group adjacent to the outermost ply group and located at the inner portion in the carcass and which is at least equal to the number of twists of the cords of the innermost ply group, and the cords of the innermost ply group of the carcass having the number of twists which is 5% to 30% times larger than the number of twists of the ply group adjacent to the innermost ply group and located at the outer portion in the carcass.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile