Patent · US Expired

Method of making a steel crossbeam which crossbeam forms a component of a bumper for motor vehicles, and crossbeam

US6726259B2 · kind B2 · utility

11Cited by

5References

4Claims

0Family size

Assignee

Benteler Aktiengesellschaft · US

Inventors

Markus Kettler · Paderborn, DE
Udo Klasfauseweh · Gütersloh, DE
Peter Goer · Paderborn, DE

Key dates

Filing date	Jan 29, 2003
Grant date	Apr 27, 2004
Priority date	—
Expiry date	Jan 29, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24215
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

In a method of making a steel crossbeam for use as component of a bumper for motor vehicles, a composite element is formed by attaching sheet metal strips in parallel disposition onto a broadside of a steel sheet strand across an entire length thereof, whereby the sheet metal strips have a width which is narrower than a width of the steel sheet strand. The composite element is then shaped through roll-forming in a direction transverse to the longitudinal extent of the composite element into a crossbeam.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.