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. 12, 1977
Filed:
Apr. 07, 1975
Applicant:
Inventor:
Frederick Joseph Ravagnani, Uniontown, OH (US);
Assignee:
The Firestone Tire & Rubber Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
1523 / ; 152354 ;
Abstract
A pneumatic tire provided with a tread portion, at least one body ply, and at least two stabilizer plies interposed between the tread and body ply, the radially innermost of the stabilizer plies having reinforcing cords oriented at an angle of approximately 54.degree. to a meridian line of the tire to substantially eliminate ply steer force in the tire. The average angle of the reinforcing cords in all of the stabilizer plies may be made approximately 68.degree. to a meridian line of the tire to provide good cornering stiffness force characteristics in the tire.