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:
Aug. 03, 2010
Filed:
Mar. 13, 2008
Applicants:
Rainer Stueckrad, Alheim Baumbach, DE;
Helmut Straub, Rotenburg, DE;
Inventors:
Rainer Stueckrad, Alheim Baumbach, DE;
Helmut Straub, Rotenburg, DE;
Assignee:
Neumayer Tekfor Holding GmbH, Hausach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 28/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of producing a hollow shaft having first and second profilings provided for torque transmission at respective ends thereof, wherein a shaft section between the ends has a smaller diameter than at least one of the profilings, and the hollow shaft is assembled from hollow shaft and sleeve components joined via a torque-transmitting slip joint, in which the shaft and sleeve components are each formed from cut blanks by cupping, perforating. cold extrusion and turning steps, and the respective components are assembled to each other.