Global Patent Index - EP 1023140 A1

EP 1023140 A1 2000-08-02 - WELDING DEVICE FOR TWO WORK PIECES TO BE JOINED TOGETHER BY A WELD SEAM WHICH IS CLOSED IN ITSELF

Title (en)

WELDING DEVICE FOR TWO WORK PIECES TO BE JOINED TOGETHER BY A WELD SEAM WHICH IS CLOSED IN ITSELF

Title (de)

SCHWEISSEINRICHTUNG FÜR ZWEI ÜBER EINE IN SICH GESCHLOSSENE SCHWEISSNAHT MITEINANDER ZU VERBINDENDE WERKSTÜCKE

Title (fr)

DISPOSITIF DE SOUDAGE POUR DEUX PIECES A ASSEMBLER PAR UN CORDON DE SOUDURE FERME EN SOI

Publication

EP 1023140 A1 (DE)

Application

EP 98954348 A

Priority

  • DE 19745929 A
  • EP 9806336 W

Abstract (en)

[origin: WO9920430A1] The invention relates to a welding device which works by means of a laser beam, for joining two work pieces (1, 2) together with a continuous weld seam (N) which is closed in itself. Said welding device comprises an optical focusing system (7) with a sensor (10) for following the seam and is supported by a swivel arm (11) so that the optical focusing system (7) defines a circular path in relation to the work pieces (1, 2). The position of the optical focusing system (7) on the swivel arm (11) is corrected by means of a drive mechanism (13) in accordance with the measuring result of the sensor (10) for following the seam.

IPC 1-7 (main, further and additional classification)

B23K 26/08; B23K 26/04

IPC 8 full level (invention and additional information)

B23K 26/04 (2006.01); B23K 26/08 (2006.01)

CPC (invention and additional information)

B23K 26/0853 (2013.01); B23K 26/04 (2013.01)

Citation (search report)

See references of WO 9920430A1

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL SE

EPO simple patent family

WO 9920430 A1 19990429; DE 19745929 C1 19990729; EP 1023140 A1 20000802; PL 339918 A1 20010115; US 6288359 B1 20010911

INPADOC legal status


2003-10-29 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030424

2002-04-24 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: THYSSENKRUPP STAHL AG

- Ref Legal Event Code: RAP1

2000-08-02 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000324

2000-08-02 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE DE ES FR GB IT NL SE