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:
May. 04, 2004
Filed:
May. 13, 2002
Applicant:
Inventor:
Magne Eystein Runde, Trondheim, NO;
Assignee:
Sintef Energiforskning AS, Trondheim, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 6/10 ;
U.S. Cl.
CPC ...
H05B 6/10 ;
Abstract
Apparatus for induction heating of billet-shaped blanks ( ) of electrically well conductive and non-magnetic metal, in particular aluminum or copper, comprising a winding ( ) adapted to surround the blank completely or partially, to be supplied with electric alternating current ( ) and to be cooled ( ) at least during the heating of the blank ( ). The winding has turns comprising superconducting material and is enclosed by a thermally insulating chamber ( ). The cooling ( ) is adapted to maintain the winding at a temperature in the range 30-90° K, and the frequency of the alternating current ( ) is adapted to be in the range of common mains frequencies.