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:
Mar. 27, 2012
Filed:
Jun. 09, 2003
Applicants:
Andrew Miller Cameron, Tansley, GB;
Christian Juan Feldermann, Banyoles, ES;
Inventors:
Andrew Miller Cameron, Tansley, GB;
Christian Juan Feldermann, Banyoles, ES;
Assignee:
The BOC Group plc, Windlesham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C 5/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of refining a ferroalloy includes the step of blowing molecular oxygen or a gas mixture including molecular oxygen into a melt of the ferroalloy. A metallurgically acceptable particulate material is introduced from above into the melt. The particulate material is carried into the melt in a first supersonic gas jet which travels to the melt shrouded by a second gas jet.