(19)

(11)

EP 2 321 467 A1

(12)

(43) Date of publication: 18.05.2011 Bulletin 2011/20 (21) Application number: 09782282.9 (22) Date of filing: 27.08.2009

(51) International Patent Classification (IPC):  E02B 5/02(2006.01) (86) International application number: PCT/EP2009/061074 (87) International publication number: WO 2010/028959 (18.03.2010 Gazette 2010/11)

(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 Designated Extension States: AL BA RS (30) Priority: 12.09.2008 DE 102008047008 12.09.2008 DE 202008014492 U 12.09.2008 US 96445 P (71) Applicant: Hagn Umwelt GmbH 82140 Olching (DE)	(72) Inventor: ALTSCHÄFFL, Michael 85417 Marzling (DE) (74) Representative: Maiwald Patentanwalts GmbH  Elisenhof Elisenstrasse 3 80335 München 80335 München (DE)