EP 0173592 B1 19881012 - METHOD AND APPARATUS FOR MAKING CARDBOARD TUBES WITH INTEGRAL CLOSURE FOR PACKAGING ARTICLES
Title (en)
METHOD AND APPARATUS FOR MAKING CARDBOARD TUBES WITH INTEGRAL CLOSURE FOR PACKAGING ARTICLES
Publication
Application
Priority
FR 8410778 A 19840706
Abstract (en)
[origin: US4636188A] A process and apparatus are provided for manufacturing cardboard tubes with incorporated closure for packing or sending articles or documents and tubes obtained by implementing this process. The process comprises the continuous formation of a cardboard tube on the rotary mandrel of a spiralling machine and cutting the tube into tube elements discharged by the machine. This cut out is provided in the form of a sinusoid with provision of appropriate fold lines. Thus tube elements are obtained, without waste of material, whose ends have two opposite tongues which may be folded back, the adjacent ends of two successive tube elements being offset by 90 DEG .
IPC 1-7
IPC 8 full level
B31C 11/02 (2006.01); B26D 3/16 (2006.01); B31F 1/00 (2006.01)
CPC (source: EP US)
B26D 3/162 (2013.01 - EP US); B31F 1/0083 (2013.01 - EP US); Y10T 82/16163 (2015.01 - EP US); Y10T 82/16754 (2015.01 - EP US); Y10T 82/16819 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
US 4636188 A 19870113; AT E37818 T1 19881015; AU 4880785 A 19870430; AU 582592 B2 19890406; CA 1239825 A 19880802; DE 3565489 D1 19881117; EP 0173592 A1 19860305; EP 0173592 B1 19881012; ES 544848 A0 19861216; ES 8702241 A1 19861216; FR 2567070 A1 19860110; FR 2567070 B1 19861219; JP S6125830 A 19860204; PT 80780 A 19850801; PT 80780 B 19881215
DOCDB simple family (application)
US 75164285 A 19850703; AT 85401327 T 19850701; AU 4880785 A 19851017; CA 486065 A 19850628; DE 3565489 T 19850701; EP 85401327 A 19850701; ES 544848 A 19850703; FR 8410778 A 19840706; JP 14486485 A 19850703; PT 8078085 A 19850705