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. 22, 1980
Filed:
Nov. 21, 1978
Henri J Mirtain, Compiegne, FR;
Uniroyal, S.A., Campiegne, FR;
Abstract
A pneumatic tire having a reinforcing belt which includes a first ply of cords formed from a synthetic material having a high modulus of elasticity and a second ply of metallic cords. The first ply has a width substantially equal to the width of the tread of the tire. The second ply has a width between one-fourth and three-fourths of the width of the tread. The second ply reinforces the median region of the tread. Each cord of the first ply intersects the median equatorial plane of the tire at a first angle of from 14.degree. to 30.degree.; each cord of the second ply intersects the median equatorial plane of the tire at a second angle of from 22.degree. to 32.degree.. The second angle is opposite in direction from the first angle. At least one strip of cords formed from a synthetic material having a low modulus of elongation overlaps an edge region of the second ply. The foregoing abstract is not to be taken as a complete exposition of the present invention.