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. 20, 2007
Filed:
May. 25, 2004
Applicants:
David K. Melgaard, Albuquerque, NM (US);
Joseph J. Beaman, Austin, TX (US);
Gregory J. Shelmidine, Tijeras, NM (US);
Inventors:
David K. Melgaard, Albuquerque, NM (US);
Joseph J. Beaman, Austin, TX (US);
Gregory J. Shelmidine, Tijeras, NM (US);
Assignee:
Sandia Corporation, Albuquerque, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus and method for controlling an electroslag remelting furnace comprising adjusting electrode drive speed by an amount proportional to a difference between a metric of electrode immersion and a set point, monitoring impedance or voltage, and calculating the metric of electrode immersion depth based upon a predetermined characterization of electrode immersion depth as a function of impedance or voltage.