(19)

(11)

EP 0 978 154 A1

(12)

(43) Date of publication: 09.02.2000 Bulletin 2000/06 (21) Application number: 98917455.2 (22) Date of filing: 23.04.1998

(51) International Patent Classification (IPC)7: H01Q 1/44, H01Q 1/12 (86) International application number: PCT/GB9801/191 (87) International publication number: WO 9849/744 (05.11.1998 Gazette 1998/44)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GR IE IT LI LU NL PT SE (30) Priority: 26.04.1997 GB 9708433 (71) Applicant: ALAN DICK & COMPANY LIMITED Cheltenham,Gloucestershire GL52 6UT (GB)	(72) Inventor: ALLCOCK, George Cheltenham,Gloucestershire GL53 8NR (GB) (74) Representative: Dunlop, Brian Kenneth Charles et al c/o Wynne-Jones, Lainé & James22 Rodney Road CheltenhamGloucestershire GL50 1JJ CheltenhamGloucestershire GL50 1JJ (GB)