(19)

(11)

EP 2 569 244 A2

(12)

(88) Date of publication A3: 01.03.2012 (43) Date of publication: 20.03.2013 Bulletin 2013/12 (21) Application number: 11722143.2 (22) Date of filing: 13.05.2011

(51) International Patent Classification (IPC):  B66B 9/187(2006.01) (86) International application number: PCT/GB2011/050917 (87) International publication number: WO 2011/141748 (17.11.2011 Gazette 2011/46)

(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: 14.05.2010 GB 201008127 (71) Applicant: Oceantech Limited Cheam, Surrey SM2 7AU (GB)	(72) Inventors: KIRKLEY, David William Cheam, Surrey SM2 7AU (GB) WAKEFIELD, Robert Cheam, Surrey SM2 7AU (GB) (74) Representative: ip21 Ltd  Central Formalities Department Lakeside 300 Old Chapel Way Broadland Business Park Norwich Norfolk NR7 0WG Broadland Business Park Norwich Norfolk NR7 0WG (GB)