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:
Sep. 24, 2002
Filed:
Mar. 27, 2001
Tsuguo Kido, Okazaki, JP;
Tetsuji Omori, Okazaki, JP;
Seiji Yamamoto, Okazaki, JP;
Yuji Nakada, Okazaki, JP;
Futaba Industrial Co., Ltd., Okazaki, JP;
Abstract
In forming a fuel inlet pipe FP, (1) a portion of a base pipe is expanded by use of an expander punch to form a processed pipe comprising a neck portion, of which the diameter is the same as that of the base pipe, a tapering portion, and an expanded portion, all of these portions being connected in coaxial relation to one another (coaxially expanding process); and (2) a central axis of the neck portion and a central axis of the expanded portion are decentered relative to each other, and the expanded portion of the processed pipe is further expanded by use of an expander punch having a diameter larger than that of the expander punch used in the coaxially expanding process, thereby forming the fuel inlet pipe FP (eccentrically expanding process). The coaxially expanding process is performed one time or a plurality of times, while the eccentrically expanding process is performed only one time.