(19)

(11)

EP 0 770 161 A1

(12)

(43) Date of publication: 02.05.1997 Bulletin 1997/18 (21) Application number: 95924464.0 (22) Date of filing: 12.07.1995

(51) International Patent Classification (IPC):  E01F 9/ 011( . ) E01F 9/ 018( . ) (86) International application number: PCT/GB1995/001648 (87) International publication number: WO 1996/002704 (01.02.1996 Gazette 1996/06)

(84) Designated Contracting States: BE DE ES FR GB IT LU NL PT (30) Priority: 13.07.1994 GB 19940014165 30.11.1994 GB 19940024201 21.04.1995 GB 19950008169 (71) Applicant: Hodges, David Ralph Marshall Burley on the Hill, Oakham, Rutland, Leicestershire 1E15 7SU (GB)	(72) Inventor: Hodges, David Ralph Marshall Burley on the Hill, Oakham, Rutland, Leicestershire 1E15 7SU (GB) (74) Representative: Findlay, Alice Rosemary  Lloyd Wise, Tregear & Co., Commonwealth House, 1-19 New Oxford Street London WC1A 1LW London WC1A 1LW (GB)