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:
Nov. 30, 2004
Filed:
Nov. 01, 2002
Hiroyuki Mori, Toyonaka, JP;
Yozaburo Takayama, Nishinomiya, JP;
Kazuhisa Fujisawa, Kobe, JP;
Hisashi Mitamura, Takasago, JP;
Kazuto Okada, Kobe, JP;
Naoya Fujiwara, Kobe, JP;
Eiichiro Yoshikawa, Kobe, JP;
Takayuki Kogishi, Kobe, JP;
Other;
Abstract
An object of the present invention is to provide a bladder which is unlikely to have a shapal variation along the inner wall surface of the tire and can satisfactorily extend along the inner wall surface of the tire. An inventive bladder is used to press the inner wall surface of the tire by a pressurized heating medium during the vulcanization of a green tire and is comprised of a fabric layer (purl stitched fabric layer ) and rubber layers (silicone rubber layers ) placed one over another. Elongation rates of the fabric layer in warp direction and in weft direction both exceed 15% and satisfy: 0.4≦elongation rate in weft direction/elongation rate in warp direction ≦6.0. Since the fabric layer has good extensibility, it can elongate with the rubber layers.