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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.:

US 9616485 B1

PDFFull Text
Date of Patent:
Apr. 11, 2017

Filed:

Dec. 20, 2012

Metal strip

Applicant:

Jfe Steel Corporation, Tokyo, JP;

Inventors:

Takahiko Ogura, Tokyo, JP;

Hiroshi Shigeta, Tokyo, JP;

Yoshimitsu Fukui, Tokyo, JP;

Yoshitsugu Iijima, Tokyo, JP;

Kei Mikami, Tokyo, JP;

Yasuhiro Matsuki, Tokyo, JP;

Assignee:

JFE STEEL CORPORATION, Tokyo, JP;

Attorney:

Young & Thompson

Primary Examiner:

Adam Krupicka

Int. Cl.
CPC ...
B21H 7/00 (2006.01); C22C 38/50 (2006.01); C22C 38/48 (2006.01); C22C 38/44 (2006.01); C22C 38/42 (2006.01); C22C 38/06 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C22C 38/00 (2006.01); B21C 37/08 (2006.01); B21C 37/083 (2006.01); B21B 37/24 (2006.01); B21B 1/22 (2006.01);
U.S. Cl.
CPC ...
B21H 7/00 (2013.01); B21B 37/24 (2013.01); B21C 37/0803 (2013.01); B21C 37/083 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); B21B 1/22 (2013.01); B21B 2001/225 (2013.01); B21B 2205/02 (2013.01); Y10T 428/12389 (2015.01);
Abstract

Provided is a metal strip for a pipe with which the weight of a pipe can be reduced while maintaining the strength of a joint portion that tends to be structurally the weakest. A metal strip L is formed by rolling. The thickness of each of a head end portionand a tail end portion, which are longitudinal end portions, is greater than the thickness of an intermediate portion excluding the longitudinal end portions. The metal strips are connected to each other in series by welding, and a pipe is made by performing a pipe-forming operation.

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