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:
Aug. 23, 2016
Filed:
Oct. 22, 2013
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
A press mold includes an inner punch (), an intermediate punch () disposed along an outer periphery of the inner punch () and having an intermediate punch inclined portion () at a leading end, an outer punch () disposed along an outer periphery of the intermediate punch (), and a die () having a die inclined portion () facing the intermediate punch inclined portion (), central axes () of all of which are coaxially disposed. While a bottom portion of a bottomed container () is constrained by the inner punch () and the die (), an end portion of the bottomed container () is pressed by the outer punch (), and the intermediate punch () is moved in a direction opposite a direction in which the outer punch () is pressed, whereby a bottomed container inclined portion () of the bottomed container () sandwiched by the intermediate punch inclined portion () and the die inclined portion () is thickened.