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(11)

EP 0 627 971 A1

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(43) Date of publication: 14.12.1994 Bulletin 1994/50 (21) Application number: 93905274.0 (22) Date of filing: 24.02.1993

(51) International Patent Classification (IPC):  B23K 26/ 14( . ) (86) International application number: PCT/EP1993/000428 (87) International publication number: WO 1993/016838 (02.09.1993 Gazette 1993/21)

(84) Designated Contracting States: CH DE FR GB LI (30) Priority: 25.02.1992 IT 1992TO00153 25.02.1992 IT 1992TO00154 25.02.1992 IT 1992TO00155 (71) Applicant: ALTEC S.r.l. I-40026 Santena (IT)	(72) Inventor: LA ROCCA, Aldo, Vittorio I-10020 Revigliasco Torinese (IT) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 D-80538 München D-80538 München (DE)