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:
Jun. 02, 1998
Filed:
Nov. 30, 1994
Applicant:
Inventor:
Hiroki Sawada, Tokyo, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B60C / ; B60C / ; D02G / ;
U.S. Cl.
CPC ...
152556 ; 57237 ; 57902 ; 152451 ;
Abstract
A pneumatic tire has organic fiber carcass cords. The organic fiber carcass cords comprise double-twisted fiber yarns and satisfy the following equations. ##EQU1## where D.sub.1 is the original denier, D.sub.2 is the total of the original denier, N.sub.1 is a ply-twisting coefficient, N.sub.2 is a cable-twisting coefficient, n.sub.1, is the ply-twisting number (turns/10 cm), n.sub.2 is the cable-twisting number (turns/10 cm) and .rho. is the specific gravity of the organic fiber.