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:
Apr. 07, 2009
Filed:
Oct. 25, 2006
Applicants:
Dirk Kröger, Lichtenau, DE;
Hans-jürgen Knaup, Bad Lippspringe, DE;
Inventors:
Dirk Kröger, Lichtenau, DE;
Hans-Jürgen Knaup, Bad Lippspringe, DE;
Assignee:
Benteler Automobiltechnik GmbH, Paderborn, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 37/16 (2006.01); B21D 28/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A shaped part is made by forming in a flat steel plate a thickness-reducing groove and hot-shaping and hardening the flat steel plate into a three-dimensional shape. Then the plate formed with the groove is cooled, and a piece is sheared off the cooled plate along a cut line in the groove.