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:
Jul. 20, 1993
Filed:
Sep. 03, 1992
Applicant:
Inventors:
Robert S Bogan, Natrona Heights, PA (US);
Brad Hjerpe, Hebron, IN (US);
Roger L Marquart, Valparaiso, IN (US);
James D Reisinger, Hebron, IN (US);
Assignee:
USX Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75508 ;
Abstract
A method for desulfurizing molten steel while the steel is subjected to a vacuum dehydrogenation treatment, comprising adding to the steel in a vacuum chamber a desulfurizing agent in lump form and comprising, by weight percent, about 50% CaO, about 38% CaF.sub.2, and about 10% MgO.