Global Patent Index - EP 0904860 A3

EP 0904860 A3 2000-07-05 - Method and installation for manufacturing biconical wire

Title (en)

Method and installation for manufacturing biconical wire

Title (de)

Verfahren und Anlage zur Herstellung von bikonischem Draht

Title (fr)

Procédé et installation de fabrication de fils biconiques

Publication

EP 0904860 A3 (DE)

Application

EP 98117224 A

Priority

  • DE 19800237 A
  • DE 19743034 A

Abstract (en)

[origin: EP0904860A2] The method for production of wire with alternating cylindrical and conical sections out of a cylindrical starting material is characterized by the fact that the conical sections are produced by a hot-forming process. The claimed installation includes a heating unit (1) and a forming unit (2).

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

B21B 1/16; B21H 7/00; C21D 8/06

IPC 8 full level (invention and additional information)

B21B 1/16 (2006.01); B21B 45/00 (2006.01); B21C 37/04 (2006.01); B21H 8/00 (2006.01); C21D 8/06 (2006.01); C21D 9/52 (2006.01); C21D 9/60 (2006.01)

CPC (invention and additional information)

B21B 1/16 (2013.01); C21D 8/06 (2013.01)

Citation (search report)

  • [XA] DE 1752609 A1 19710603 - BRUENINGHAUS GMBH STAHLWERKE
  • [XA] DE 3434226 A1 19860327 - LINDEMANN WOLFGANG [DE]
  • [A] DE 1602680 A1 19700409 - BRUENINGHAUS GMBH STAHLWERKE
  • [A] JP S4830546 B1 19730921
  • [XA] PATENT ABSTRACTS OF JAPAN vol. 005, no. 193 (M - 101) 9 December 1981 (1981-12-09)
  • [XA] PATENT ABSTRACTS OF JAPAN vol. 015, no. 443 (M - 1178) 12 November 1991 (1991-11-12)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 03 28 April 1995 (1995-04-28)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 005, no. 166 (M - 093) 23 October 1981 (1981-10-23)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0904860 A2 19990331; EP 0904860 A3 20000705; JP H11169991 A 19990629; US 6035686 A 20000314

INPADOC legal status


2001-12-19 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010106

2001-04-19 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

- Ref Legal Event Code: 8566

2001-03-14 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-07-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI

2000-06-28 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7B 21B 1/16 A, 7C 21D 8/06 B, 7B 21H 7/00 B, 7C 21D 9/02 -

1999-03-31 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

1999-03-31 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI