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:
Feb. 03, 1998
Filed:
Jan. 31, 1996
Applicant:
Inventors:
Paul M Berge, Ames, IA (US);
Edwin D Gibson, Ames, IA (US);
Seong-Tcho Kim, Cedar Rapids, IA (US);
John D Verhoeven, Ames, IA (US);
Assignee:
Iowa State University Research Foundation, Inc., Ames, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420587 ; 420495 ; 420590 ;
Abstract
Method and apparatus for making a Cu-Cr melt involves melting Cu-bearing alloy component in a melting vessel disposed in ambient air atmosphere, retaining Cr-bearing alloy component in an inverted ceramic crucible held submerged in the melted Cu-bearing alloy component, introducing inert gas into the melted Cu-bearing alloy component, and flowing the melted Cu-bearing alloy component in the melting vessel through openings in the submerged crucible to contact the Cr-bearing alloy component.