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:
Dec. 27, 1988
Filed:
Aug. 25, 1987
Applicant:
Inventors:
Charles E Eckert, Plum Boro, PA (US);
Elwin L Rooy, Franklin Park Boro, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420590 ; 75 1019 ;
Abstract
A method for introducing grain refiners into molten media, such as molten aluminum, utilizes a chamber having a discharge immersed in the molten media and having a plasma therein extending from the molten media at the chamber discharge to a site above the discharge. Grain refiner is provided to said site and converted into a superheated spray for introduction into the media. An alternate embodiment includes supplying one or more constituents of a grain refiner compound to the plasma for reaction to form the grain refiner. A gas exits the chamber and enhances introduction into the media.