(19)

(11)

EP 0 190 246 A1

(12)

(43) Date of publication: 13.08.1986 Bulletin 1986/33 (21) Application number: 85903858.0 (22) Date of filing: 05.08.1985

(51) International Patent Classification (IPC):  A61H 33/ 00( . ) E03C 1/ 23( . ) (86) International application number: PCT/GB1985/000345 (87) International publication number: WO 1986/001100 (27.02.1986 Gazette 1986/05)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 08.08.1984 GB 19840020114 20.09.1984 GB 19840023778 14.03.1985 GB 19850006681 (71) Applicant: AQUATECH MARKETING LIMITED Newbury Berkshire RG14 5TU (GB)	(72) Inventor: MURFIN, John Oxfordshire OX10 9PX (GB) (74) Representative: Abnett, Richard Charles  REDDIE & GROSE 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)