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:
Jun. 16, 1981
Filed:
May. 16, 1979
Applicant:
Inventor:
Werner Elsel, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 62 ; 310 53 ; 310 63 ; 310 64 ; 62 555 ; 417 49 ;
Abstract
An evacuating device for generating an insulating vaccum around the superconducting winding of the rotor of an electric machine with an inner space which is surrounded by the winding and is permeated by the magnetic field of the winding in which a co-rotating ionization getter pump operating according to the sputter principle is diposed in the inner space and has at least two electrodes arranged perpendicular with respect the magnetic field eliminating the need for rotating sealing elements at a terminal head of the rotor.