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.

Date of Patent:
Jun. 09, 2009

Filed:

Aug. 13, 2003
Applicants:

Naoji Yamaoka, Saitama, JP;

Yoshimasa Iwaguchi, Saitama, JP;

Takashi Shimada, Utsunomiya, JP;

Setsuo Arai, Utsunomiya, JP;

Toshio Ishii, Saitama, JP;

Inventors:

Naoji Yamaoka, Saitama, JP;

Yoshimasa Iwaguchi, Saitama, JP;

Takashi Shimada, Utsunomiya, JP;

Setsuo Arai, Utsunomiya, JP;

Toshio Ishii, Saitama, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/02 (2006.01); B23K 9/032 (2006.01); B23K 37/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A plurality of attachments having springs hold the outer plate of a fuel tank, and an inner jig positions the inner plate. The attachments are attached to clamp arms which are opened/closed by cylinders. When the overlap portion between the outer and inner plates is welded, the thermal deformation caused by welding is accommodated by the springs. The attachments are spaced from the fuel tank in the order in which the welding point is approached.


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