(19)

(11)

EP 2 844 553 A1

(12)

(43) Date of publication: 11.03.2015 Bulletin 2015/11 (21) Application number: 13720399.8 (22) Date of filing: 03.05.2013

(51) International Patent Classification (IPC):  B63H 9/06(2006.01) (86) International application number: PCT/EP2013/059238 (87) International publication number: WO 2013/164446 (07.11.2013 Gazette 2013/45)

(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 Designated Extension States: BA ME (30) Priority: 03.05.2012 US 201261642121 P (71) Applicant: SkySails GmbH 21079 Hamburg (DE)	(72) Inventor: WORTMANN, Stefan 22769 Hamburg (DE) (74) Representative: Eisenführ Speiser  Patentanwälte Rechtsanwälte PartGmbB Johannes-Brahms-Platz 1 20355 Hamburg 20355 Hamburg (DE)