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:
Oct. 02, 2007
Filed:
Apr. 25, 2002
Applicants:
Jochen Ginsberg, Siegen, DE;
Thomas Muhr, Attendorn, DE;
Inventors:
Jochen Ginsberg, Siegen, DE;
Thomas Muhr, Attendorn, DE;
Assignee:
Muhr und Bender, Attendorn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21J 5/08 (2006.01); B21D 41/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing a hollow monoblock shaft from a pipe, the pipe initially having a constant diameter and a constant wall thickness, and the monoblock component including at least one area of its length being of a smaller outside diameter and a greater wall thickness than the constant diameter and constant wall thickness of the pipe. The process can be carried out simply and economically by the following process steps: