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:
Nov. 27, 2007
Filed:
Dec. 01, 2004
Applicants:
Walter Blejde, Brownsburg, IN (US);
Rama Mahapatra, Brighton-Le-Sands, AU;
Lazar Strezov, Adamstown Heights, AU;
Inventors:
Walter Blejde, Brownsburg, IN (US);
Rama Mahapatra, Brighton-Le-Sands, AU;
Lazar Strezov, Adamstown Heights, AU;
Assignee:
Nucor Corporation, Charlotte, NC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22D 11/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A thin steel strip with low surface roughness and low porosity produced by casting with molten steel having a total oxygen content of at least about 100 ppm and a temperature that allows a majority of any oxide inclusions to be in a liquidus state. The steel strip produced by the method may have a per unit area density of at least about 120 oxide inclusions per square millimeter to a depth of about 2 microns from the strip surface.