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:
May. 22, 1984
Filed:
Oct. 21, 1982
Applicant:
Inventors:
Kerry R Berger, Lehighton, PA (US);
Jelle H Kaspersma, Hazerswoude-Dozp, NL;
Joseph R Luybli, Hellertown, PA (US);
Barry Millward, La Place, LA (US);
Robert H Shay, Kutztown, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 16 ; 148 165 ; 148 166 ; 148 203 ;
Abstract
A process for decarburizing ferrous metals and in particular electrical steels such as motor and transformer laminations wherein metal articles are treated at temperature under a furnace atmosphere generated by injecting N.sub.2 --CO.sub.2 --H.sub.2 mixtures or N.sub.2 -methanol-CO.sub.2 mixtures into the furnace.