(19)

(11)

EP 2 430 623 A1

(12)

(43) Date of publication: 21.03.2012 Bulletin 2012/12 (21) Application number: 10774597.8 (22) Date of filing: 10.05.2010

(51) International Patent Classification (IPC):  G08B 21/02(2006.01) G08B 13/00(2006.01) G08B 25/01(2006.01) (86) International application number: PCT/FI2010/050376 (87) International publication number: WO 2010/130875 (18.11.2010 Gazette 2010/46)

(84) Designated Contracting States: AL 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: 13.05.2009 FI 20095538 (71) Applicants: Keinänen, Jorma Olavi 01800 Klaukkala (FI) Keinänen, Marja-Liisa 01800 Klaukkala (FI) Hepo-Oja, Sauli 00760 Helsinki (FI)	(72) Inventors: KEINÄNEN, Jorma FI-01800 Klaukkala (FI) HEPO-OJA, Sauli FI-00760 Helsinki (FI) (74) Representative: LEITZINGER OY  Tammasaarenkatu 1 00180 Helsinki 00180 Helsinki (FI)