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(11)

EP 2 401 440 A1

(12)

(43) Date of publication: 04.01.2012 Bulletin 2012/01 (21) Application number: 10714384.4 (22) Date of filing: 25.02.2010

(51) International Patent Classification (IPC):  E03B 9/10(2006.01) F16L 55/07(2006.01) E03F 7/08(2006.01) (86) International application number: PCT/PL2010/050006 (87) International publication number: WO 2010/098686 (02.09.2010 Gazette 2010/35)

(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: 25.02.2009 PL 38733509 (71) Applicants: Przedsiebiorstwo Inzynierii Srodowiska, EkoWodrol Sp. z.o.o. 75-846 Koszalin (PL) Szuster, Miroslaw PL 98-350 Biala (PL)	(72) Inventor: WOJCIECHOWSKI, Lech PL-75-813 Koszalin (PL) (74) Representative: Witek, Rafal  WTS Patent Attorneys, ul. Rudolfa Weigla 12 53-114 Wroclaw 53-114 Wroclaw (PL)