(19)

(11)

EP 1 945 499 A2

(12)

(88) Date of publication A3: 22.11.2007 (43) Date of publication: 23.07.2008 Bulletin 2008/30 (21) Application number: 06837207.7 (22) Date of filing: 08.11.2006

(51) International Patent Classification (IPC):  B63H 9/04(2006.01) (86) International application number: PCT/US2006/043578 (87) International publication number: WO 2007/058870 (24.05.2007 Gazette 2007/21)

(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 LV MC NL PL PT RO SE SI SK TR (30) Priority: 10.11.2005 US 735425 P (71) Applicant: Harken, Inc. Pewaukee, Wisconsin 53072 (US)	(72) Inventors: LUEDTKE, Matthew Milwaukee, WI 53221 (US) BLACKBURN, Dane Waukesha, WI 53186 (US) PIONTEK, Michael Chicago, IL 60614 (US) (74) Representative: Lawrence, John  Barker Brettell LLP 138 Hagley Road Edgbaston Birmingham B16 9PW Edgbaston Birmingham B16 9PW (GB)