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:
May. 06, 1980
Filed:
Oct. 11, 1977
Henri J Mirtain, Compiegne, FR;
Daniel Shichman, Trumbull, CT (US);
James J Neville, Newfoundland, NJ (US);
Uniroyal, Inc., New York, NY (US);
Uniroyal a Societe Anonyme, Clairoix, FR;
Abstract
A method of making a belted, radial ply tire in a single stage is disclosed wherein a body layer is formed from one or more body plies of cord fabric which are wound around a tire building drum in such a manner that the cords extend parallel to the axis of the building drum. At least a pair of breaker plies of cord fabric are wrapped around the body plies to create a breaker layer with the cords in each breaker ply being oppositely disposed in adjacent plies, extending parallel to one another within each breaker ply and forming a bias angle of from about 50.degree. to about 70.degree. with a circumferential line corresponding to the crown centerline of the completed tire. A strip of high soft stretch reinforcing tape is wrapped helically over the breaker layer at an angle of substantially 90.degree. to a plane including the axis of the body layer to form a 0.degree. cap band preparatory to securing a tread slab over the breaker layer, completing the raw carcass. The carcass is then expanded into a toroidal form in which the reinforcing tape expands tightly about the breaker layer and the cords in the breaker layer pantograph from their initial larger bias angle to a bias angle of at least about 35.degree. and no more than about 60.degree.. The expanded carcass is then vulcanized. The intermediate article of manufacture formed pursuant to the method is also disclosed.