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:
Dec. 16, 1997
Filed:
Dec. 21, 1995
Applicant:
Inventor:
Yoshinori Kuriya, Kodaira, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
57213 ; 57902 ;
Abstract
A steel cord for the reinforcement of rubber article has a three-layer twisting construction comprising a core layer comprised of a single steel filament, a first sheath layer comprised of six steel filaments and a second sheath layer comprised of steel filaments subtracted by 1 or 2 filament from maximum steel filament number arranged on a circumscribed circle of the first sheath layer without a wrap filament. In this steel cord, filament diameters of the core layer and the sheath layers satisfy the particular relationships. The steel cord is used in a carcass ply of a heavy duty pneumatic radial tire.