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. 26, 2023
Filed:
Dec. 06, 2018
Applicant:
Federal-mogul Valvetrain Gmbh, Barsinghausen, DE;
Inventors:
Assignee:
Federal-Mogul Valvetrain GmbH, Barsinghausen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B21K 1/24 (2006.01);
U.S. Cl.
CPC ...
B21K 1/24 (2013.01);
Abstract
A matrix for shaping a valve preform has a circular through opening and a reduced conical section. The reduced conical section tapers from an outer diameter to a reduced cone inner diameter, the outer diameter being greater than or equal to the initial outer diameter of the valve preform, and the matrix inner diameter being smaller than the initial outer diameter.