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:
Jul. 08, 2014
Filed:
Feb. 26, 2007
Hiroshi Hata, Hiratsuka, JP;
Hiroshi Hata, Hiratsuka, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
Provided is a method of manufacturing a pneumatic tire, which causes no blister to take place during vulcanization molding even in a case where a cylindrical thermoplastic resin film is used as an air-permeation preventing layer while a rubber sheet material laminated onto the thermoplastic resin film has a thickness of 0.5 mm or more. The method includes the steps of: winding an unvulcanized rubber sheet material with a thickness of 0.5 mm or more around a cylindrical thermoplastic resin film which is placed around a making drum; and splicing one end portion and the other end portion of the rubber sheet material together so that the spliced part is step-shape. The method is characterized in that one end portion of the rubber sheet material is spliced onto the other end portion thereof with an auxiliary rubber sheet interposed between a step part of the spliced part of the rubber sheet material and the thermoplastic resin film, the auxiliary rubber sheet being thinner than the thermoplastic resin film.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile