(19)

(11)

EP 0 922 194 A1

(12)

(43) Date of publication: 16.06.1999 Bulletin 1999/24 (21) Application number: 97936767.0 (22) Date of filing: 13.08.1997

(51) International Patent Classification (IPC):  F41J 11/ 00( . ) (86) International application number: PCT/GB1997/002166 (87) International publication number: WO 1998/006997 (19.02.1998 Gazette 1998/07)

(84) Designated Contracting States: AT BE DK ES FR GB IE IT NL PT SE (30) Priority: 14.08.1996 GB 19960017036 (71) Applicant: Munn, Peter Aylesbury, Bucks HP19 9JW (GB)	(72) Inventor: Munn, Peter Aylesbury, Bucks HP19 9JW (GB) (74) Representative: Rock, Olaf Colin  Rock and Company, Trelawn, Cassington Witney, Oxford OX8 1DN Witney, Oxford OX8 1DN (GB)