EP 2716377 B1 20160302 - A method of manufacturing a conical tube element
Title (en)
A method of manufacturing a conical tube element
Title (de)
Verfahren zur Herstellung eines konischen Rohrelements
Title (fr)
Méthode de fabrication d'un élément tubulaire conique
Publication
Application
Priority
EP 12187464 A 20121005
Abstract (en)
[origin: EP2716377A1] A method of manufacturing conical tube elements, in particular from aluminium cylindrical tubes consists in that a straight-line tube element is placed onto a mandrel of a forming device, which mandrel is two metres long at the most and then a section of said tube element placed onto said mandrel is subjected to rolling and after that, without interrupting the process, the remaining part of the tube element is subjected to rolling and drawing.
IPC 8 full level
B21C 37/18 (2006.01); B21D 22/16 (2006.01); B21H 1/18 (2006.01)
CPC (source: EP)
B21C 37/18 (2013.01); B21D 22/16 (2013.01); B21D 41/04 (2013.01); B21H 1/18 (2013.01)
Citation (opposition)
Opponent : Leifeld Metal Spinning AG
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- DE 2230554 A1 19740117 - LEIFELD & CO
- WO 2005016569 A1 20050224 - WILLY VOIT GMBH & CO KG [DE], et al
- GB 576983 A 19460430 - ALBERT PETER THURSTON
- DE 19723939 A1 19981210 - LEICO WERKZEUGMASCHB GMBH & CO [DE]
- EP 1283333 A1 20030212 - LEICO WERKZEUGMASCHB GMBH & CO [DE]
- EP 2127775 A1 20091202 - REPKON MACHINE AND TOOL INDUST [TR]
- DE 2825723 A1 19790111 - DAIICHI KOSHUHA KOGYO KK
- DE 2816862 A1 19790927 - EATON LEONARD CORP
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 12187464 A 20121005