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(11)

EP 2 155 530 A1

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(43) Date of publication: 24.02.2010 Bulletin 2010/08 (21) Application number: 08734535.1 (22) Date of filing: 13.05.2008

(51) International Patent Classification (IPC):  B61L 29/24(2006.01) B61L 29/30(2006.01) (86) International application number: PCT/DK2008/000178 (87) International publication number: WO 2008/138342 (20.11.2008 Gazette 2008/47)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 11.05.2007 DK 200700707 (71) Applicant: Bombardier Transportation (Signal) Denmark A/S 2650 Hvidovre (DK)	(72) Inventors: NIELSEN, Johnny DK-2680 Solrod Strand (DK) NIELSEN, Claus, Vestergard DK-2650 Hvidovre (DK) (74) Representative: Larsen, Hans Ole et al Larsen & Birkeholm A/S Skandinavisk Patentbureau Banegaardspladsen 1 P.O. Box 362 1570 Copenhagen V 1570 Copenhagen V (DK)