(19)

(11)

EP 1 730 354 A2

(12)

(88) Date of publication A3: 01.12.2005 (43) Date of publication: 13.12.2006 Bulletin 2006/50 (21) Application number: 05717818.8 (22) Date of filing: 28.02.2005

(51) International Patent Classification (IPC):  E02B 3/10(2006.01) E02B 7/44(2006.01) (86) International application number: PCT/GB2005/000738 (87) International publication number: WO 2005/084108 (15.09.2005 Gazette 2005/37)

(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: 04.03.2004 GB 0404954 (71) Applicant: Forrest, John Charles Macintosh Bishop's Waltham Southampton SO32 1NP (GB)	(72) Inventor: Forrest, John Charles Macintosh Bishop's Waltham Southampton SO32 1NP (GB) (74) Representative: Johnstone, Douglas Ian et al Baron & Warren, 19 South End, Kensington London W8 5BU London W8 5BU (GB)