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. 01, 2011
Filed:
Dec. 20, 2007
Yoshitoshi Hagiwara, Shizuoka, JP;
Tetsuaki Nakayama, Shizuoka, JP;
Nobuyuki Yoshitoshi, Shizuoka, JP;
Yoshitoshi Hagiwara, Shizuoka, JP;
Tetsuaki Nakayama, Shizuoka, JP;
Nobuyuki Yoshitoshi, Shizuoka, JP;
Yutaka Giken Co., Ltd., Shizuoka, JP;
Abstract
A metallic bellows is manufactured by a first step of bulging a straight raw pipe into a primary formed body having formed on a periphery thereof a corrugated bellows section, and a second step of subjecting at least one of crest portions and trough portions of the bellows section of the primary formed body to roll machining by means of a pair of forming rolls.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile