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:
Jun. 19, 2012
Filed:
Jun. 24, 2009
Applicant:
Leonard S. Aubrey, Hendersonville, NC (US);
Inventor:
Leonard S. Aubrey, Hendersonville, NC (US);
Assignee:
Porvair, PLC, Norfolk, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for filtering molten magnesium or magnesium alloys is provided. The method includes the steps of: providing an organic foam; impregnating the organic foam with a slurry comprising metal particles; heating the impregnated organic foam to a temperature sufficient to volatilize the organic foam thereby forming a porous metal foam comprising no more than 0.5 wt % nickel; sintering the porous metal foam; passing molten magnesium or magnesium alloy through the porous metal foam thereby forming purified molten magnesium or magnesium alloy; and cooling the purified molten magnesium or magnesium alloy.