(19)

(11)

EP 0 986 799 A1

(12)

(43) Date of publication: 22.03.2000 Bulletin 2000/12 (21) Application number: 98928432.8 (22) Date of filing: 08.06.1998

(51) International Patent Classification (IPC)7: G08B 25/04 (86) International application number: PCT/GB9801/674 (87) International publication number: WO 9855/976 (10.12.1998 Gazette 1998/49)

(84) Designated Contracting States: CH DE ES FR GB LI (30) Priority: 07.06.1997 GB 9711745 21.11.1997 GB 9724593 (71) Applicant: Fulleon Limited Cwmbran, Gwent NP44 3AW (GB)	(72) Inventor: CHAPMAN, Kieron CwmbranGwent NP44 6EN (GB) (74) Representative: Kensett, John Hinton et al Saunders & Dolleymore,9 Rickmansworth Road Watford,Hertfordshire WD1 7HE Watford,Hertfordshire WD1 7HE (GB)