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. 21, 1991
Filed:
May. 21, 1990
Applicant:
Inventors:
Randy W Wahlquist, Ogden, UT (US);
John M Reinarts, North Ogden, UT (US);
Timothy L Francis, Ogden, UT (US);
Assignee:
Westinghouse Electric Company, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75415 ; 75617 ; 420590 ; 428545 ; 428567 ;
Abstract
Normally reject sponge metal fines, especially those produced by the crushing and screening of a regulus of zirconium and/or hafnium metal sponge, are added to the initial reduction charge of the metal tetrachloride and magnesium metal, and the so-modified charge is then passed through the conventional reduction and vacuum distillation steps to produce a regulus of the metal that has the reject fines incorporated therein by sintering.