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:
Dec. 21, 2010
Filed:
Jul. 13, 2007
Applicants:
Naomasa Tsuda, Tokyo, JP;
Keisuke Mishima, Tokyo, JP;
Inventors:
Naomasa Tsuda, Tokyo, JP;
Keisuke Mishima, Tokyo, JP;
Assignee:
Kayaba Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 41/00 (2006.01); B21D 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A closing devicewhich presses a dieagainst a rotating pipe bodysuch that an open end portion of the pipe bodyis plastically closed by the dieincludes a cored barinserted into the pipe bodyto close the open end portion of the pipe bodyon the opposite side of the dieand a reactive force applying mechanismwhich allows the cored barto retreat and applies a reactive force to the retreating cored barwhen the cored barreceives a predetermined load or more during processing of the pipe bodyby the die