EP 2189229 B1 20120801 - Method of closing the end of pipes with a rectangular cross-section
Title (en)
Method of closing the end of pipes with a rectangular cross-section
Title (de)
Verfahren zum Verschliessen des Stirnendes von Rohren mit rechteckigem Querschnitt
Title (fr)
Procédé destiné à fermer l'extrémité de tuyaux dotés d'une section transversale rectangulaire
Publication
Application
Priority
EP 08105854 A 20081124
Abstract (en)
[origin: EP2189229A1] The method involves rolling the long side edge regions (13A) and the short side edge regions (12A) of a tube end (11) in a rectangular cross-sectional manner by flange rollers (14,16). The tube end is rolled by flange rollers with circular groove (20) under the formation of a tube closure with a circular external profile.
IPC 8 full level
B21D 41/04 (2006.01)
CPC (source: EP)
B21D 41/045 (2013.01); F28F 1/04 (2013.01); F28F 2220/00 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 08105854 A 20081124