(19)

(11)

EP 2 307 623 A2

(12)

(88) Date of publication A3: 22.04.2010 (43) Date of publication: 13.04.2011 Bulletin 2011/15 (21) Application number: 09754148.6 (22) Date of filing: 28.05.2009

(51) International Patent Classification (IPC):  E03F 5/10(2006.01) E03B 3/03(2006.01) (86) International application number: PCT/GB2009/050585 (87) International publication number: WO 2009/144503 (03.12.2009 Gazette 2009/49)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 28.05.2008 GB 0809636 (71) Applicants: D'arcy, Brian Kinross KY13 9JR (GB) Campbell, Neil Balerno EH14 7EY (GB)	(72) Inventors: D'arcy, Brian Kinross KY13 9JR (GB) Campbell, Neil Balerno EH14 7EY (GB) (74) Representative: Harrison Goddard Foote  106 Hope Street Glasgow G2 6PH Glasgow G2 6PH (GB)