(19)

(11)

EP 1 665 295 A1

(12)

(43) Date of publication: 07.06.2006 Bulletin 2006/23 (21) Application number: 04783399.1 (22) Date of filing: 04.09.2004

(51) International Patent Classification (IPC):  H01F 7/08(1968.09) H01F 7/16(1968.09) (86) International application number: PCT/US2004/029129 (87) International publication number: WO 2005/024860 (17.03.2005 Gazette 2005/11)

(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 PL PT RO SE SI SK TR (30) Priority: 05.09.2003 US 500629 P (71) Applicant: ABB Technology AG 8050 Zürich (CH)	(72) Inventors: LANNI, Arthur Cary, NC 27511 (US) TRIVETTE, Marty, L. Cary, NC 27513 (US) RAMANAN, V., R. Cary, NC 27511 (US) (74) Representative: Marks, Frank et al ABB Patent GmbH, Oberhausener Strasse 33 40472 Ratingen 40472 Ratingen (DE)