(19)

(11)

EP 0 821 751 A1

(12)

(43) Date of publication: 04.02.1998 Bulletin 1998/06 (21) Application number: 96910128.0 (22) Date of filing: 22.04.1996

(51) International Patent Classification (IPC):  E02F 3/ 30( . ) (86) International application number: PCT/GB1996/000955 (87) International publication number: WO 1996/033315 (24.10.1996 Gazette 1996/47)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 21.04.1995 GB 19950008116 (71) Applicant: Evans, Emlyn Thomas Hengoed, Mid Glamorgan CF8 7AE (GB)	(72) Inventor: Evans, Emlyn Thomas Hengoed, Mid Glamorgan CF8 7AE (GB) (74) Representative: Wendon, James  WENDON GREGORY, Agincourt House, 1 Agincourt Square Monmouth NP5 3BT Monmouth NP5 3BT (GB)