(19)

(11)

EP 1 778 921 A1

(12)

(43) Date of publication: 02.05.2007 Bulletin 2007/18 (21) Application number: 05702744.3 (22) Date of filing: 21.01.2005

(51) International Patent Classification (IPC):  E01F 9/06(2006.01) (86) International application number: PCT/IB2005/050250 (87) International publication number: WO 2006/011064 (02.02.2006 Gazette 2006/05)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 23.07.2004 ZA 200405887 (71) Applicant: Hume, Stuart John Leisure Isle 6570 Knysna (ZA)	(72) Inventor: Hume, Stuart John Leisure Isle 6570 Knysna (ZA) (74) Representative: Haley, Stephen  Gill Jennings & Every LLP Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)