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:
Oct. 30, 2001
Filed:
Aug. 06, 1999
Applicant:
Inventors:
Paul Eaton Clark, Rugby, GB;
Roger Henry Regan, Northants, GB;
Assignee:
Alstom UK Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/22 ;
U.S. Cl.
CPC ...
H02K 1/22 ;
Abstract
In a large rotating electrical machine having a rotor comprising conductor bars of copper located in slots in a rotor core and connected together at their ends to form a winding, the conductor bars are electrically insulated from the rotor core by a coating on the conductors of a ceramic-based material. The coating serves to prevent sparking occurring between the conductor bars and the rotor core.