(19)

(11)

EP 0 796 148 A1

(12)

(43) Date of publication: 24.09.1997 Bulletin 1997/39 (21) Application number: 95941940.0 (22) Date of filing: 21.12.1995

(51) International Patent Classification (IPC):  B02C 19/ 00( . ) (86) International application number: PCT/NZ1995/000135 (87) International publication number: WO 1996/020789 (11.07.1996 Gazette 1996/31)

(84) Designated Contracting States: DE ES FR GB SE (30) Priority: 06.01.1995 NZ 19950260948 24.02.1995 NZ 19950270568 (71) Applicant: Svedala New Zealand Limited Matamata 2271 (NZ)	(72) Inventor: CANADA, Larry, Don Matamata 2271 (NZ) (74) Representative: Andrews, Timothy Stephen  Marks & Clerk, 57-60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)