(19)

(11)

EP 0 513 129 A1

(12)

(43) Date of publication: 19.11.1992 Bulletin 1992/47 (21) Application number: 91903576.0 (22) Date of filing: 21.12.1990

(51) International Patent Classification (IPC):  B61L 1/ 18( . ) B61L 3/ 24( . ) (86) International application number: PCT/SE1990/000865 (87) International publication number: WO 1991/011356 (08.08.1991 Gazette 1991/18)

(84) Designated Contracting States: BE DE DK ES FR GB IT NL (30) Priority: 25.01.1990 SE 19900000259 (71) Applicant: EB SIGNAL AB S-126 12 Stockholm (SE)	(72) Inventors: CAPOROSSI, Roberto I-00174 Rome (IT) FEULI, Maurizio I-00010 Rome (IT) SPANGBERG, Gustav S-117 44 Stockholm (SE) SUNDVALL, Karl-Erik S-136 64 Haninge (SE) (74) Representative: Boecker, Joachim, Dr.-Ing.  Adelonstrasse 58 D-65929 Frankfurt am Main D-65929 Frankfurt am Main (DE)