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.

Date of Patent:
Sep. 20, 2022

Filed:

Dec. 08, 2021
Applicant:

Benteler Steel/tube Gmbh, Paderborn, DE;

Inventors:

Daniel Lücke, Brakel, DE;

Michael Markert, Lichtenau, DE;

Marcel Wellpott, Paderborn, DE;

Dirk Tegethoff, Salzkotten, DE;

Assignee:

Benteler Steel/Tube GmbH, Paderborn, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 39/04 (2006.01);
U.S. Cl.
CPC ...
B21D 39/048 (2013.01);
Abstract

An inner diameter of a first end of a tubular component, positioned in relation to a first die, is reduced through relative movement between the tubular component and the first die such as to produce a first conical area between first and second ends of the tubular component. The first conical area is then formed through relative movement of a second die to create in a longitudinal section of the first conical area an outer circumferential embossment and an inner bead having an inner diameter smaller than the inner diameter of the first end. The first end is widened through insertion of an inner tool, while the tubular component is supported on an outside in a mold cavity of an outer tool. An inner contour with an internal stop is formed as an outer surface of the first end of the tubular component rests flatly in the mold cavity.


Find Patent Forward Citations

Loading…