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. 27, 2003
Filed:
Sep. 19, 1997
Applicant:
Inventors:
Donald W. Clark, Bay Point, Panama City, FL (US);
C. William Cornelssen, Alpharetta, GA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 3/800 ;
U.S. Cl.
CPC ...
C22C 3/800 ;
Abstract
A method of producing iron powder comprises the step of providing a supply of iron oxide powder of a size less than 1000 microns which is then heated in a reducing agent atmosphere to a temperature between 1000° F. and 2100° F., thus resulting in the ironoxide powder being reduced to iron powder, cooling the iron powder in an inert gas atmosphere to a temperature below 150° F. and milling to a median particle size diameter of less than or equal to 20 microns.