(19)

(11)

EP 2 539 685 A1

(12)

(43) Date of publication: 02.01.2013 Bulletin 2013/01 (21) Application number: 11746909.8 (22) Date of filing: 24.02.2011

(51) International Patent Classification (IPC):  G01N 1/22(2006.01) G01N 27/62(2006.01) F02B 77/08(2006.01) G01M 15/10(2006.01) G01N 15/06(2006.01) (86) International application number: PCT/FI2011/000011 (87) International publication number: WO 2011/104425 (01.09.2011 Gazette 2011/35)

(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 RS SE SI SK SM TR (30) Priority: 25.02.2010 FI 20100093 U (71) Applicant: Pegasor OY 33100 Tampere (FI)	(72) Inventors: KOSKINEN, Tuomas FI-33100 Tampere (FI) KAARTINEN, Juha FI-33100 Tampere (FI) (74) Representative: Parta, Ari Petri  Kolster Oy Ab Iso Roobertinkatu 23 P.O. Box 148 00121 Helsinki 00121 Helsinki (FI)