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. 06, 2007
Filed:
Dec. 02, 2004
Fumihiko Gejima, Yokohama, JP;
Hiroshi Sakurai, Kanagawa, JP;
Kenji Kanamori, Yokohama, JP;
Tetsuji Morita, Kanagawa, JP;
Sadao Yanagida, Kanagawa, JP;
Masayuki Inoue, Yokohama, JP;
Fumihiko Gejima, Yokohama, JP;
Hiroshi Sakurai, Kanagawa, JP;
Kenji Kanamori, Yokohama, JP;
Tetsuji Morita, Kanagawa, JP;
Sadao Yanagida, Kanagawa, JP;
Masayuki Inoue, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A tubing including an overlap portion formed by the first and second circumferential end portions overlapping and joined with each other, and a fluid leakage preventing member for preventing pressurized fluid from leaking from the tubing upon the tubing being subjected to hydrostatic forming. An apparatus and method for hydrostatic forming of a tubing having an overlap portion. The apparatus includes a die and a nozzle having fluid leakage preventing means for preventing the pressurized fluid supplied into the tubing from leaking from a clearance between the first and second circumferential end portions of the overlap portion of the tubing at the longitudinal end portions of the tubing.