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. 25, 2003
Filed:
May. 30, 2001
Noboru Demukai, Gifu, JP;
Junichi Tsubokura, Chita, JP;
Daido Tokushuko Kabushiki Kaisha, Gifu, JP;
Abstract
A melting apparatus having a compact structure, of economical equipment cost, enabling to vacuum melting and refining at high productivity. A metal melting apparatus has a structure in which a refractory furnace wall is furnished on an outer circumference thereof with a seal jacket of air tight and non-electrical conductivity, and disposed with vertical water cooling copper pipes along the inner circumference of the seal jacket at predetermined space, and the furnace casing is arranged at the outer part to encircle the furnace casing with an induction heating coil , and the furnace casing is secured to a frame by means of the seal jacket for reinforcing the structure. The seal jacket of the furnace casing is fixed to the frame via an upper flange and a lower flange