(19)

(11)

EP 0 932 578 A1

(12)

(43) Date of publication: 04.08.1999 Bulletin 1999/31 (21) Application number: 97931474.0 (22) Date of filing: 02.07.1997

(51) International Patent Classification (IPC):  A23G 9/ 04( . ) A23G 9/ 28( . ) A23G 9/ 16( . ) (86) International application number: PCT/US1997/011274 (87) International publication number: WO 1998/000360 (08.01.1998 Gazette 1998/01)

(84) Designated Contracting States: DE DK FR GB IT (30) Priority: 02.07.1996 ZA 19960005613 (71) Applicant: Van Der Merwe, Marcel Stellenbosch 7600 (ZA)	(72) Inventors: VAN DER MERWE, Marcel Stellenbosch 7600 (ZA) ERASMUS, Mark Henry Cape Town 7800 (ZA) (74) Representative: Hanson, William Bennett  J.Y. & G.W. Johnson, Kingsbourne House, 229-231 High Holborn London WC1V 7DP London WC1V 7DP (GB)