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(11)

EP 1 485 987 A1

(12)

(43) Date of publication: 15.12.2004 Bulletin 2004/51 (21) Application number: 03735584.9 (22) Date of filing: 10.06.2003

(51) International Patent Classification (IPC)7: H02P 6/16, H02P 7/29, H02K 29/08 (86) International application number: PCT/EP2003/006023 (87) International publication number: WO 2004/004111 (08.01.2004 Gazette 2004/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 26.06.2002 DE 10228438 (71) Applicant: ebm-papst St. Georgen GmbH & Co. KG 78112 St. Georgen (DE)	(72) Inventors: RUDEL, Christian 78126 Königsfeld (DE) RAPPENECKER, Hermann 78147 Vöhrenbach (DE) (74) Representative: Raible, Tobias, Dipl.-Phys.  Raible & RaibleSchoderstrasse 10 70192 Stuttgart 70192 Stuttgart (DE)