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. 27, 1998
Filed:
Nov. 18, 1994
Applicant:
Inventor:
Wilhelm Heller, Duisburg, DE;
Assignee:
NMH Stahwerke GmbH, Sulzbach-Rosenberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C21D / ;
U.S. Cl.
CPC ...
420 84 ; 420110 ; 148906 ; 148584 ;
Abstract
The properties of conventional steels for rails, check rails and railroad rolling components can be improved by small amounts of tellurium. This applies particularly to the wear resistance and the mechanical properties in the transverse direction and at oxygen contents of less than 0.0015% and sulfur contents up to 0.007%.