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:
Jun. 30, 2009
Filed:
Aug. 16, 2004
Applicants:
Holger Stark, Tettnang, DE;
Martin Schlegl, Rudersberg, DE;
Inventors:
Holger Stark, Tettnang, DE;
Martin Schlegl, Rudersberg, DE;
Assignee:
Daimler AG, Stuttgart, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 1/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multipart composite valve for an internal combustion engine, in which a valve shaft () and a valve plate () are embodied separately while being joined together in an overlapping area (). The invention is characterized in that at least some parts of the valve shaft () are provided with an intermediate layer () in the overlapping area (). Said intermediate layer () forms an integral joint with both the valve shaft () and the valve plate () in the form of a chemical bond, the valve plate () being cast onto the valve shaft ().