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:
Feb. 14, 2012
Filed:
Dec. 30, 2005
Applicants:
Hans-heinrich Welschof, Rodenbach, DE;
Wolfgang Hildebrandt, Siegburg, DE;
Frank Reher, Wenden, DE;
Inventors:
Assignee:
GKN Driveline International GmbH, Lohmar, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 8/22 (2006.01); C21D 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
An articulated structural part includes a peripheral zone. The peripheral zone includes a surface, an outermost layer situated immediately adjacent the surface, a further layer situated adjacent the outermost layer and a core situated adjacent the further layer, wherein the outermost layer is substantially martensite. The further layer includes a varying mixture of martensite and of ferrite or perlite. The core is substantially ferrite or perlite. A process for producing an articulated structural part is also provided.