(19)

(11)

EP 2 274 060 A1

(12)

(43) Date of publication: 19.01.2011 Bulletin 2011/03 (21) Application number: 09720408.5 (22) Date of filing: 13.03.2009

(51) International Patent Classification (IPC):  A63C 19/10(2006.01) E01H 4/02(2006.01) E01C 13/10(2006.01) (86) International application number: PCT/FI2009/050199 (87) International publication number: WO 2009/112642 (17.09.2009 Gazette 2009/38)

(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 TR Designated Extension States: AL BA RS (30) Priority: 13.03.2008 FI 20085221 (71) Applicant: Oû Plan Consulting 14300 Renko (FI)	(72) Inventor: VAHTERO, Arto FI-14300 Renko (FI) (74) Representative: Salomäki, Juha Kari Ensio  Salomaki Oy Kankurinkatu 4-6 05800 Hyvinkää 05800 Hyvinkää (FI)