(19)

(11)

EP 0 819 217 A1

(12)

(43) Date of publication: 21.01.1998 Bulletin 1998/04 (21) Application number: 96910246.0 (22) Date of filing: 28.03.1996

(51) International Patent Classification (IPC):  F03D 3/ 06( . ) F03D 11/ 04( . ) F03D 11/ 00( . ) (86) International application number: PCT/NZ1996/000025 (87) International publication number: WO 1996/030647 (03.10.1996 Gazette 1996/44)

(84) Designated Contracting States: DE DK ES FR GB IE IT NL (30) Priority: 29.03.1995 NZ 19950270836 (71) Applicant: Williamson, Owen, Garth Hamilton (NZ)	(72) Inventor: Williamson, Owen, Garth Hamilton (NZ) (74) Representative: Gilding, Martin John, et al  Eric Potter & Clarkson St. Mary's Court St. Mary's Gate Nottingham NG1 1LE Nottingham NG1 1LE (GB)