(19)

(11)

EP 1 954 894 A1

(12)

(43) Date of publication: 13.08.2008 Bulletin 2008/33 (21) Application number: 06812964.2 (22) Date of filing: 01.11.2006

(51) International Patent Classification (IPC):  E03C 1/042(2006.01) F16L 5/00(2006.01) E03C 1/02(2006.01) (86) International application number: PCT/SE2006/001240 (87) International publication number: WO 2007/053087 (10.05.2007 Gazette 2007/19)

(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 NL PL PT RO SE SI SK TR (30) Priority: 03.11.2005 SE 0502481 (71) Applicant: Sandberg, Hakan 441 33 Alingsas (SE)	(72) Inventor: Håkan Sandberg S-44133 Alingsås (SE) (74) Representative: Berglund, Erik Wilhelm  Berglunds Patentbyra AB Aspebraten 590 55 Sturefors 590 55 Sturefors (SE)