(19)

(11)

EP 0 725 864 A1

(12)

(43) Date of publication: 14.08.1996 Bulletin 1996/33 (21) Application number: 94927001.0 (22) Date of filing: 21.09.1994

(51) International Patent Classification (IPC):  E02D 13/ 06( . ) (86) International application number: PCT/GB1994/002052 (87) International publication number: WO 1995/008675 (30.03.1995 Gazette 1995/14)

(84) Designated Contracting States: DE DK ES FR IT NL (30) Priority: 21.09.1993 GB 19930019467 (71) Applicant: FRANK'S INTERNATIONAL LIMITED Great Yarmouth, Norfolk NR31 0LX (GB)	(72) Inventor: CLAY, Robert, Albert Paramode Limited Unit 4 Lowestoft Suffolk NR32 3LZ (GB) (74) Representative: Jones, William  Willow Lane House Willow Lane Norwich Norfolk, NR2 1EU Norwich Norfolk, NR2 1EU (GB)