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. 28, 1977
Filed:
Sep. 17, 1975
Applicant:
Inventor:
Sven Einar Stenkvist, Vasteras, SW;
Assignee:
Asea Aktiebolag, Vasteras, SW;
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
13 10 ;
Abstract
A metal melt is treated by injecting fluid material into the melt below its surface and which material does not add heat to the melt during the injecting, thus requiring the addition of heat to the melt during the injecting, to maintain the melt's temperature. This heat is added by forming an electric arc between an electrode and the melt, using a DC power supply connected to the electrode and to a connector in contact with a lower portion of the melt, with the electrode connected to make it a cathode and the connector connected with the power supply so that it, and, therefore, the melt, form an anode.