(19)

(11)

EP 0 991 355 A1

(12)

(43) Date of publication: 12.04.2000 Bulletin 2000/15 (21) Application number: 98917385.1 (22) Date of filing: 16.04.1998

(51) International Patent Classification (IPC)7: A47L 13/58 (86) International application number: PCT/GB9801/114 (87) International publication number: WO 9900/050 (07.01.1999 Gazette 1999/01)

(84) Designated Contracting States: DE DK GB (30) Priority: 27.06.1997 GB 9713685 (71) Applicant: NUMATIC INTERNATIONAL LIMITED Chard,Somerset TA20 2LW (GB)	(72) Inventors: DUNCAN, Christopher, Robert Chard,Somerset TA20 3BH (GB) GAILES, Michael, Edward Beaminster,Dorset DT3 3PD (GB) (74) Representative: Brown, Fraser Gregory James et al fJ Cleveland 40-43 Chancery Lane London WC2A 1JQ London WC2A 1JQ (GB)