(19)

(11)

EP 0 979 382 A1

(12)

(43) Date of publication: 16.02.2000 Bulletin 2000/07 (21) Application number: 97941109.7 (22) Date of filing: 22.09.1997

(51) International Patent Classification (IPC)7: F42B 5/26 (86) International application number: PCT/GB9702/581 (87) International publication number: WO 9849/515 (05.11.1998 Gazette 1998/44)

(84) Designated Contracting States: AT BE CH DE ES FR IT LI (30) Priority: 29.04.1997 GB 9708629 (71) Applicants: Bauer, Nicodemus Eran Norton Disney,Lincoln LN6 9JP (GB) Bauer, Gerard Miet Wellingore,Lincoln LN5 0JF (GB)	(72) Inventors: BARRACLOUGH, Trevor, Joe Stafford ST16 3DB (GB) ALEXANDER, William, Rogers, Henry Ranton,Stafford ST18 9JY (GB) (74) Representative: Elsworth, Dominic Stephen  Hargreaves ElsworthWagon BarnDraycote Rugby CV23 9RB Rugby CV23 9RB (GB)