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:
Jun. 18, 2013
Filed:
Jun. 09, 2011
Walter Neumann, Kupferzell, DE;
Gerhard Koch, Moeckmuehl, DE;
Robert Pop, Stuttgart, DE;
Klaus Beck, Oberkochen, DE;
Klaus Siegert, Sindelfingen, DE;
Walter Neumann, Kupferzell, DE;
Gerhard Koch, Moeckmuehl, DE;
Robert Pop, Stuttgart, DE;
Klaus Beck, Oberkochen, DE;
Klaus Siegert, Sindelfingen, DE;
Buerkert Werke GmbH, Ingelfingen, DE;
Abstract
A method of manufacturing a metallic valve housing by hydroforming a tube section in a die is provided. The die includes an upper part having a stamp and a lower part having a depression. The tube section is placed in the die, filled with a liquid, and subjected to a high internal pressure. Opposite walls of the tube section in a middle portion between two tube ends is shaped in that one side of the tube section is pressed inwards transversely to the axis of the tube section by the stamp to form a concave curvature, and the opposite wall is pressed into the depression in the lower part to form a flat.