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EP 2 148 959 A1

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(43) Date of publication: 03.02.2010 Bulletin 2010/05 (21) Application number: 08767491.7 (22) Date of filing: 02.05.2008

(51) International Patent Classification (IPC):  E03D 9/00(2006.01) (86) International application number: PCT/US2008/005643 (87) International publication number: WO 2008/137045 (13.11.2008 Gazette 2008/46)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 04.05.2007 US 800488 04.05.2007 US 800493 04.05.2007 US 800501 16.05.2007 US 749558 31.07.2007 US 831653 (71) Applicant: S.C. Johnson & Son, Inc. Racine, WI 53403 (US)

(72) Inventors: LEONARD, Stephen, B. Franksville, Wisconsin 53126 (US) MILLER, Allen, D. Racine, Wisconsin 53406 (US) SAWALSKI, Michael, M. Racine, Wisconsin 53402 (US) ORDIWAY, Timothy, R. Racine, Wisconsin 53402 (US) MADORE, Linda, M. Vernon Hills, Illinois 60061 (US) CRULL, Jeffrey, L. McFarland, Wisconsin 53558 (US) HARRINGTON, Steven, Merrill Cardiff, California 92007 (US) SHUM, Wai, Yin Caribbean Coast Tung Chung (CN) (74) Representative: Ruschke, Hans Edvard et al Ruschke Madgwick Seide & Kollegen Postfach 86 06 29 81633 München 81633 München (DE)