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(11)

EP 2 078 115 A1

(12)

(43) Date of publication: 15.07.2009 Bulletin 2009/29 (21) Application number: 07730544.9 (22) Date of filing: 28.03.2007

(51) International Patent Classification (IPC):  E02D 27/00(2006.01) E02D 27/38(2006.01) E04B 1/38(2006.01) E02D 27/01(2006.01) E02D 27/48(2006.01) (86) International application number: PCT/FI2007/000075 (87) International publication number: WO 2007/118922 (25.10.2007 Gazette 2007/43)

(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 MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 28.03.2006 FI 20060291 (71) Applicants: Hurtta, Tero Tapani 45160 Kouvola (FI) Niinivaara, Tarmo Eino Tapani 45610 Koria (FI)	(72) Inventor: NINIVAARA, Ensi Kyösti Juhani 45610 Koria (FI) (74) Representative: Lahti, Heikki  Sinimäentie 8B 02630 Espoo 02630 Espoo (FI)