(19)

(11)

EP 0 318 527 A1

(12)

(43) Date of publication: 07.06.1989 Bulletin 1989/23 (21) Application number: 88903332.0 (22) Date of filing: 27.04.1988

(51) International Patent Classification (IPC):  A23G 3/ 28( . ) A23G 3/ 34( . ) (86) International application number: PCT/GB1988/000325 (87) International publication number: WO 1988/008254 (03.11.1988 Gazette 1988/24)

(84) Designated Contracting States: AT BE CH DE FR IT LI LU NL (30) Priority: 27.04.1987 GB 19870009908 17.02.1988 GB 19880003699 (71) Applicant: VAN PRAAG, Stephen South Glamorgan (GB)	(72) Inventor: VAN PRAAG, Stephen South Glamorgan (GB) (74) Representative: Austin, Hedley William, et al  Urquhart-Dykes & Lord Alexandra House 1 Alexandra Road Swansea West Glamorgan SA1 5ED Swansea West Glamorgan SA1 5ED (GB)