(19)

(11)

EP 0 328 568 A1

(12)

(43) Date of publication: 23.08.1989 Bulletin 1989/34 (21) Application number: 88905607.0 (22) Date of filing: 29.06.1988

(51) International Patent Classification (IPC):  F04D 29/ 12( . ) F16J 15/ 38( . ) F16J 15/ 34( . ) (86) International application number: PCT/AU1988/000220 (87) International publication number: WO 1989/000247 (12.01.1989 Gazette 1989/02)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 08.07.1987 AU 19870002977 (71) Applicant: WARMAN INTERNATIONAL LIMITED Artarmon, NSW 2064 (AU)	(72) Inventor: WALKER, Ian, Craig Artarmon, NSW 2064 (AU) (74) Representative: Ajello, Michael John  Simon Engineering Limited Patents Dep. P.O. Box 31 Stockport Cheshire SK3 ORT Stockport Cheshire SK3 ORT (GB)