(19)

(11)

EP 1 079 691 A1

(12)

(43) Date of publication: 07.03.2001 Bulletin 2001/10 (21) Application number: 99922310.0 (22) Date of filing: 14.05.1999

(51) International Patent Classification (IPC)7: A01M 1/10, A01M 1/00, A01M 23/00 (86) International application number: PCT/GB9901/531 (87) International publication number: WO 9959/403 (25.11.1999 Gazette 1999/47)

(84) Designated Contracting States: DE DK ES FR GB IT NL (30) Priority: 16.05.1998 GB 9810480 (71) Applicant: THE UNIVERSITY OF SOUTHAMPTON Southampton S017 1BJ (GB)	(72) Inventor: HOWSE, Philip Edwin Gosport,Hampshire PO16 2NG (GB) (74) Representative: Britter, Keith Palmer  Britter & Co.Enterprise House14b Whitehorse Street BaldockHertfordshire SG7 6QN BaldockHertfordshire SG7 6QN (GB)