(19)

(11)

EP 0 839 233 A1

(12)

(43) Date of publication: 06.05.1998 Bulletin 1998/19 (21) Application number: 96924977.0 (22) Date of filing: 17.07.1996

(51) International Patent Classification (IPC):  E01C 19/ 26( . ) E02D 3/ 026( . ) (86) International application number: PCT/GB1996/001708 (87) International publication number: WO 1997/004179 (06.02.1997 Gazette 1997/07)

(84) Designated Contracting States: BE DE ES FR GB IT NL SE (30) Priority: 17.07.1995 GB 19950014583 (71) Applicant: COMPACTION TECHNOLOGY (SOIL) LIMITED Harrow, Middlesex HA2 7HH (GB)	(72) Inventor: BERRANGE, Aubrey, Ralph Pinner, Middlesex HA5 5ES (GB) (74) Representative: Charlton, Peter John  Elkington and Fife Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)