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:
Mar. 11, 2003
Filed:
Aug. 05, 1999
Peter Klee, Waldmichelbach, DE;
Alstom Power, Windsor, CT (US);
Abstract
Conductor bars for the stator winding of an electrical machine are impregnated by winding the bars with an insulation, impregnating the insulation, and then curing. Specifically, the bars are provided on their surface with an insulation which is produced by wrapping each conductor bar with an insulating tape, preferably with a mica-containing insulating tape, which is impregnated with an insulating fluid, preferably curable synthetic resin. Each conductor bar provided with the finished insulation is provided over its entire length with a press-tight and fluid-tight casing. The encased conductor bar is subjected on all sides to a pressure p in a pressing device. The impregnating fluid is introduced into the interspace between the insulated conductor bar and the casing at a pressure P <P . The conductor bar, loaded with impregnating resin over its entire length in this way and surrounded by the casing, is pressed to shape and size at the curing temperature.