(19)

(11)

EP 2 385 865 A2

(12)

(88) Date of publication A3: 05.08.2010 (43) Date of publication: 16.11.2011 Bulletin 2011/46 (21) Application number: 09771794.6 (22) Date of filing: 03.12.2009

(51) International Patent Classification (IPC):  A63C 9/00(2006.01) (86) International application number: PCT/US2009/006364 (87) International publication number: WO 2010/065122 (10.06.2010 Gazette 2010/23)

(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 SM TR (30) Priority: 03.12.2008 US 327799 03.12.2008 US 327794 03.12.2008 US 327801 (71) Applicant: THE BURTON CORPORATION Burlington, VT 05401 (US)	(72) Inventors: CUNNINGHAM, Christopher, C. Burlington VT 05408 (US) KELLER, Scott, T. Waterbury VT 05676 (US) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastraße 4 81925 München 81925 München (DE)