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(11)

EP 2 016 304 A1

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(43) Date of publication: 21.01.2009 Bulletin 2009/04 (21) Application number: 07752435.3 (22) Date of filing: 07.03.2007

(51) International Patent Classification (IPC):  F16F 7/10(2006.01) (86) International application number: PCT/US2007/005735 (87) International publication number: WO 2007/130202 (15.11.2007 Gazette 2007/46)

(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 MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 05.05.2006 US 418762 (71) Applicant: SUNPOWER, INC. Athens, OH 45701 (US)	(72) Inventors: UNGER, Reuven, Z-M. Athens, Ohio 45701 (US) KEITER, Douglas, E. Athens, OH 45701 (US) (74) Representative: Götz, Georg Alois  Intellectual Property IP-GÖTZ Patent- und Rechtsanwälte Am Literaturhaus, Königstrasse 70 90402 Nürnberg 90402 Nürnberg (DE)