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:
Feb. 05, 2008
Filed:
Aug. 18, 2005
Takeyoshi Shimbori, Yokohama, JP;
Hiroshi Mizukami, Yokohama, JP;
Koichiro Yamada, Yokohama, JP;
Kyohei Inoue, Yokohama, JP;
Takeyoshi Shimbori, Yokohama, JP;
Hiroshi Mizukami, Yokohama, JP;
Koichiro Yamada, Yokohama, JP;
Kyohei Inoue, Yokohama, JP;
NHK Spring Co., Ltd., Yokohama-shi, JP;
Abstract
A pressure container has a steel pipe and an end plate that is formed with a joint portion by allowing its tapered surface to touch a tapered surface of an opening end of the steel pipe so as to block the opening end. The steel pipe has a flange portion which can be cut at the opening end of the steel pipe, and the joint portion is allowed to touch the flange portion. The flange portion is pressed against the opening end along an axial direction so as to touch the end plate, and while the end plate is being pressed against the steel pipe along the axial direction, an electric current is applied so that welding is carried out.