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. 03, 2013
Filed:
Apr. 13, 2012
Applicant:
Akira Sakae, Kobe, JP;
Inventor:
Akira Sakae, Kobe, JP;
Assignee:
Kobe Steel, Ltd., Kobe-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
B21C 25/08 (2006.01); B21C 23/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A forming apparatus for an extruded hollow section has a fixed die provided with a forming hole having guide grooves extending in a direction tilting against a direction of extrusion, and movable dies disposed to be able to travel along the guide grooves, respectively. The fixed die has a base part bridging between inner faces of the forming hole, and a hole forming part extended from an end of the base part, on a downstream side thereof, toward downstream inside the forming hole. The movable dies are disposed inside the forming hole with a gap remaining between the hole forming part and each of the movable dies.