EP 0377416 A1 19900711 - Plant for the continuous manufacture of bags using polypropylene, polythene, PVC and similar plastics.
Title (en)
Plant for the continuous manufacture of bags using polypropylene, polythene, PVC and similar plastics.
Title (de)
Anlage zur kontinuierlichen Verfertigung von Beuteln aus Polypropylen, Polyethen, PVC oder ähnlichen plastischen Materialien.
Title (fr)
Installation pour la fabrication en continu de sacs en utilisant du polypropylène, polythène, PVC ou matériaux plastiques similaires.
Publication
Application
Priority
IT 400289 A 19890104
Abstract (en)
Plastic bags are fashioned by sealing two layers of polypropylene, polythene or PVC film along two, three or four sides, often with holes punched along one of the longitudinal edges, the continuous film being uncoiled from a bulk supply turned out by chill-roll extrusion methods. The plant disclosed comprises a folding station (5), then in sequence, a heat-seal station (11), a cooling stage and a cutting station (40), and turns out the bags in an entirely continuous process.
IPC 1-7
IPC 8 full level
B31B 23/00 (2006.01)
CPC (source: EP US)
B31B 70/00 (2017.07 - EP US); B31B 2155/00 (2017.07 - EP); B31B 2155/001 (2017.07 - EP); B31B 2155/0014 (2017.07 - EP); B31B 2160/10 (2017.07 - EP); B31B 2160/106 (2017.07 - EP US)
Citation (search report)
- [X] US 2301771 A 19421110 - BILLEB CLYDE K
- [A] US 2909969 A 19591027 - STYERS HENRY H
- [A] US 3793927 A 19740226 - EMOND A
- [A] US 4599926 A 19860715 - CARLSON JR LEROY H [US], et al
- [A] US 4123956 A 19781107 - HARVEY DAVID L
- [A] US 4273015 A 19810616 - JOHNSON DONALD R
- [A] US 4674372 A 19870623 - MOBLEY GEORGE A [US]
- [A] EP 0267706 A1 19880518 - BROWN WILLIAM F
- [A] US 2866392 A 19581230 - STEPHEN SCARVELIS GUS
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR LI NL SE
DOCDB simple family (publication)
EP 0377416 A1 19900711; EP 0377416 B1 19930707; AT E91250 T1 19930715; DE 68907475 D1 19930812; DE 68907475 T2 19931021
DOCDB simple family (application)
EP 89830531 A 19891201; AT 89830531 T 19891201; DE 68907475 T 19891201