EP 0424361 B1 19941102 - Fluid-flow restricting devices, in particular for manufacturing bags made of flexible material, in particular of plastic.
Title (en)
Fluid-flow restricting devices, in particular for manufacturing bags made of flexible material, in particular of plastic.
Title (de)
Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff.
Title (fr)
Organes déprimogènes, notamment pour la fabrication de sacs en matière souple, notamment plastique.
Publication
Application
Priority
- EP 89403216 A 19891122
- FR 8816441 A 19881214
Abstract (en)
[origin: EP0375479A1] Method for manufacturing bags of flexible material, in particular of plastic material, characterised in that, in order to move the two edges of the opening orifice of the bag apart from each other, and consequently to open the extendable gussets of the bag, a depression is formed on the two outer faces of each edge of the orifice with the aid of two depression-forming members (50, 51) extending parallel to the said edges and initially spaced apart from each other by a small distance greater than the thickness so as to cause the edges to be displaced until they are applied against the depression-forming members. <IMAGE>
IPC 1-7
IPC 8 full level
B31B 19/86 (2006.01); B31B 70/04 (2017.01)
CPC (source: EP US)
B31B 70/00 (2017.07 - EP US); B31B 70/02 (2017.07 - EP); B31B 70/864 (2017.07 - EP); B31B 2160/10 (2017.07 - EP); B31B 2160/106 (2017.07 - EP US)
Designated contracting state (EPC)
BE CH DE GB IT LI NL
DOCDB simple family (publication)
EP 0375479 A1 19900627; EP 0375479 B1 19940209; DE 68913023 D1 19940324; DE 68913023 T2 19940519; DE 68919222 D1 19941208; DE 68919222 T2 19950323; EP 0424361 A2 19910424; EP 0424361 A3 19910918; EP 0424361 B1 19941102; FR 2640193 A1 19900615; FR 2640193 B1 19940603
DOCDB simple family (application)
EP 89403216 A 19891122; DE 68913023 T 19891122; DE 68919222 T 19891122; EP 91100220 A 19891122; FR 8816441 A 19881214