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:
Apr. 15, 2003
Filed:
Aug. 15, 2001
Applicant:
Inventors:
Bernhard Otte, Zirndorf, DE;
Peter Konrad, Pegnitz, DE;
Clemens Wallmann, Erlangen, DE;
Hans Werner Waldmann, Neudrossenfeld, DE;
Hans Wilhelm Bergmann, late of Gesees, DE;
Assignee:
Federal-Mogul Nürnberg GmbH, Nuremberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 1/500 ;
U.S. Cl.
CPC ...
B23P 1/500 ;
Abstract
In a method of producing a piston ( ) for an internal combustion engine including at least one strengthened piston ring groove at least one relatively narrow groove ( ) is configured in the region of the upper and/or lower flank of the provided piston ring groove ( ) and the groove ( ) is filled with a hard-wearing material ( ) and the piston ring groove ( ) is worked out such that the upper and/or lower flank is formed at least in part by the hard-wearing material ( ).