(19)

(11)

EP 0 389 540 A1

(12)

(43) Date of publication: 03.10.1990 Bulletin 1990/40 (21) Application number: 89900089.0 (22) Date of filing: 28.11.1988

(51) International Patent Classification (IPC):  H02K 3/ 12( . ) H02K 15/ 085( . ) H02K 3/ 46( . ) (86) International application number: PCT/US1988/004232 (87) International publication number: WO 1989/005538 (15.06.1989 Gazette 1989/13)

(84) Designated Contracting States: FR GB (30) Priority: 30.11.1987 US 19870126743 22.11.1988 US 19880272993 (71) Applicant: ONAN CORPORATION Minneapolis, MN 55432 (US)	(72) Inventors: GULBRANDSON, William, E. Clear Lake, MN 55319 (US) O'MALLEY, Gary, B. Fridley, MN 55342 (US) (74) Representative: Orr, William McLean, et al  URQUHART-DYKES & LORD 8th Floor, Tower House Merrion Way Leeds West Yorkshire, LS2 8PA Leeds West Yorkshire, LS2 8PA (GB)