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. 28, 1989
Filed:
Sep. 21, 1987
Applicant:
Inventors:
Yves Brunet, Gieres, FR;
Pascal Tixador, Grenoble, FR;
Assignee:
Alsthom, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 52 ; 310261 ; 310 64 ; 310 10 ;
Abstract
The electric rotating machine has a stator and a rotor with superconducting windings placed within separate cryogenic enclosures for the stator and the rotor. The cryogenic enclosures are in turn placed within evacuated thermal insulation enclosures separated by the annular clearance space which is at low pressure, thus considerably simplifying the arrangements required for dynamic sealing of motor bearings.