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. 25, 2004
Filed:
Apr. 10, 2000
Robert Walter Brown, Medina, OH (US);
Paul Harry Sandstrom, Tallmadge, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
The invention relates to a method of manufacturing a pneumatic tire ( ) with improved tire uniformity. The tire has a pair of beads ( ) in bead portions and at least one carcass ply ( ) extending between the beads and consisting of reinforcement cords ( ) embedded in a rubber matrix ( ). The method is characterized by the steps of: a) forming the rubber matrix of the carcass ply or a portion of the bead portions from a matrix material (such as a thermoplastic) that can be rendered plastic and rendered non-plastic, which respectively permits and restricts reorientation of the reinforcement cords, b) rendering the matrix material plastic (such as by heating the thermoplastic) before the tire begins to cure to permit the one or more of the reinforcement cords to be free to reorient themselves, and c) curing the tire in a tire mold ( ) while the matrix material remains plastic so that the reinforcement cords remain free to reorient themselves while curing.