(19)

(11)

EP 0 623 254 A1

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(43) Date of publication: 09.11.1994 Bulletin 1994/45 (21) Application number: 93901974.0 (22) Date of filing: 19.01.1993

(51) International Patent Classification (IPC):  H02K 7/ 10( . ) H02K 19/ 10( . ) H02K 21/ 38( . ) H02K 19/ 06( . ) H02K 21/ 12( . ) H02K 41/ 03( . ) (86) International application number: PCT/AU1993/000022 (87) International publication number: WO 1993/014551 (22.07.1993 Gazette 1993/18)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 21.01.1992 AU 19920000501 (71) Applicant: BORAL JOHNS PERRY INDUSTRIES PTY. LTD. Cheltenham, VIC 3192 (AU)	(72) Inventor: ECKERSLEY, Gregory, Peter Kew, VIC 3101 (AU) (74) Representative: Jenkins, Peter David, et al  PAGE WHITE & FARRER 54 Doughty Street London WC1N 2LS London WC1N 2LS (GB)