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:
Nov. 18, 2003
Filed:
Aug. 10, 2001
Takeshi Kawachi, Futtsu, JP;
Kazuto Yamamura, Futtsu, JP;
Hiroyuki Mitake, Futtsu, JP;
Junichi Kinoshita, Kimitsu, JP;
Katsuhiro Imanaga, Kimitsu, JP;
Masahiro Doki, Kimitsu, JP;
Yoshiaki Kimura, Kimitsu, JP;
Teruo Kawabata, Muroran, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
A transferred plasma heating anode for heating a molten metal in a container by applying Ar plasma generated by passing a direct current through the molten metal, the transferred plasma heating anode comprising; an anode, composed of a conductive metal, that has an internal cooling structure, a metal protector having an internal cooling structure that is placed outside the anode with a constant gap between the anode and the protector, and a gas supply means that supplies an Ar-containing gas to the gap, is characterized by the central portion on the external surface of the anode tip end being inwardly recessed.