(19)

(11)

EP 2 651 756 A1

(12)

(43) Date of publication: 23.10.2013 Bulletin 2013/43 (21) Application number: 11811534.4 (22) Date of filing: 15.12.2011

(51) International Patent Classification (IPC):  B63H 20/06(2006.01) (86) International application number: PCT/EP2011/073004 (87) International publication number: WO 2012/080442 (21.06.2012 Gazette 2012/25)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR (30) Priority: 15.12.2010 GB 201021240 (71) Applicant: Ogier, Nigel Amersham, Buckinghamshire HP7 9BA (GB)	(72) Inventor: Ogier, Nigel Amersham, Buckinghamshire HP7 9BA (GB) (74) Representative: Milhench, Mark Lorne  First Thought IP 35 New Broad Street House New Broad Street London EC2M 1NH London EC2M 1NH (GB)