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:
Jan. 30, 2001
Filed:
Apr. 24, 1998
Applicant:
Inventors:
Juergen Steinwandel, Oberuhldingen, DE;
Joerg Hoeschele, Friedrichshafen, DE;
Theodor Staneff, Bermatingen, DE;
Axel Heuberger, Wildberg-Gueltlingen, DE;
Assignee:
DaimlerChrysler AG, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
C23C 8/36 ; C23C 8/24 ; C23C 1/634 ; C23C 1/6511 ; C23C 1/6515 ;
U.S. Cl.
CPC ...
C23C 8/36 ; C23C 8/24 ; C23C 1/634 ; C23C 1/6511 ; C23C 1/6515 ;
Abstract
The invention relates to a method for aluminum nitride coating of cylinder contact surfaces (ZL) of a crankcase (KG) made of an aluminum basic alloy where the aluminum nitride coating is performed by surface nitriding of the aluminum basic alloy, and the activated nitrogen is generated by a high-pressure plasma process.