Global Patent Index - EP 0885071 B1

EP 0885071 B1 20001115 - METHOD AND APPARATUS FOR PRODUCING HELICALLY-WOUND LOCK-SEAM TUBING WITH REDUCED LUBRICATION

Title (en)

METHOD AND APPARATUS FOR PRODUCING HELICALLY-WOUND LOCK-SEAM TUBING WITH REDUCED LUBRICATION

Title (de)

VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN VON GEWALZTEN SCHRAUBENNAHTROHREN MIT WENIGER SCHMIERSTOFF

Title (fr)

PROCEDE ET EQUIPEMENT DE PRODUCTION DE TUBES A AGRAFAGE HELICOIDAL, AVEC LUBRIFICATION REDUITE

Publication

EP 0885071 B1 20001115 (EN)

Application

EP 96922317 A 19960617

Priority

  • SE 9600786 W 19960617
  • SE 9502367 A 19950630
  • US 49701895 A 19950630

Abstract (en)

[origin: WO9702102A1] In a method and an apparatus for producing helically-wound lock-seam tubing (15) from a metal strip (12) having longitudinal edge portions (16a, 16b), the strip (12) is fed to a forming head (14) and formed into helical shape. A lubricant is locally supplied (at 34) on that side of the strip (12) which forms the outside of the tube (15), said lubricant being supplied over only a limited portion of the width of the strip (12).

IPC 1-7

B21C 37/12

IPC 8 full level

B21C 37/12 (2006.01)

CPC (source: EP KR)

B21C 37/12 (2013.01 - KR); B21C 37/121 (2013.01 - EP); B21C 37/126 (2013.01 - EP)

Citation (examination)

US 2136943 A 19381115 - ROY FREEZE JONATHAN

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI NL SE

DOCDB simple family (publication)

WO 9702102 A1 19970123; AT E197560 T1 20001215; AU 6322596 A 19970205; CZ 288687 B6 20010815; CZ 416297 A3 19990414; DE 69610996 D1 20001221; DE 69610996 T2 20010315; EP 0885071 A1 19981223; EP 0885071 B1 20001115; HU P9903975 A2 20000328; HU P9903975 A3 20000428; JP 2001527467 A 20011225; KR 19990028507 A 19990415; NO 975925 D0 19971216; NO 975925 L 19980202; PL 179963 B1 20001130; PL 323928 A1 19980427; RU 2135318 C1 19990827

DOCDB simple family (application)

SE 9600786 W 19960617; AT 96922317 T 19960617; AU 6322596 A 19960617; CZ 416297 A 19960617; DE 69610996 T 19960617; EP 96922317 A 19960617; HU P9903975 A 19960617; JP 50505197 A 19960617; KR 19970709825 A 19971229; NO 975925 A 19971216; PL 32392896 A 19960617; RU 98101724 A 19960617