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:
Sep. 18, 2001
Filed:
Sep. 17, 1999
Applicant:
Inventors:
Christian Cottevieille, Montreuil, FR;
Thierry Verhaege, Saulx les Chartreux, FR;
Assignee:
Alstom France S.A., Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/22 ; H05F 3/00 ;
U.S. Cl.
CPC ...
H01F 7/22 ; H05F 3/00 ;
Abstract
An electric transformer comprising a primary coil and a secondary coil each constituted by at least a first coil formed by winding one or more metal-matrix superconductive conductors. The first coil of the primary coil or of the secondary coil is connected in series with at least one second coil formed by a solid superconductive tube machined to form a solenoid, the second coil being disposed coaxially with the first coil. This design contributes to protecting the transformer by means of its current-limiting effect.