EP 0063868 A1 19821103 - Improvements in and relating to packages.
Title (en)
Improvements in and relating to packages.
Title (de)
Verpackungsgegenstand.
Title (fr)
Emballage.
Publication
Application
Priority
GB 8112214 A 19810416
Abstract (en)
To facilitate butt-welding, or L- or T-weld joints the edges of a plastics-coated paper-layered web (1) of packaging material is thickened e.g. by folding over and sealing down edge zones. The folding line (14) of each edge zone may be creased before folding, and the upstanding crease enclosed between the folded edge zone and the body of the web. The sealing of the edge zone may be effected by pressure rollers (21) holding the edge zones against a rotating cylindrical surface (22), whereby a curl or curvature is imposed upon the web.
IPC 1-7
IPC 8 full level
B65D 65/40 (2006.01); B31F 1/00 (2006.01); B31F 1/10 (2006.01); B31F 5/00 (2006.01); B31F 5/08 (2006.01); B32B 1/02 (2006.01); B32B 1/04 (2006.01); B65B 9/04 (2006.01); B65D 5/56 (2006.01); B65D 5/62 (2006.01); B65D 65/00 (2006.01); B65H 45/22 (2006.01)
CPC (source: EP)
B31F 1/0025 (2013.01); B31F 1/0029 (2013.01); B65D 65/00 (2013.01); B65H 45/22 (2013.01)
Citation (search report)
- [X] GB 1107579 A 19680327 - HOLSTEIN & KAPPERT MASCHF
- [A] FR 1402125 A 19650611
- [Y] FR 2253619 A1 19750704 - GOODYEAR TIRE & RUBBER [US]
- [Y] US 2477355 A 19490726 - WALTON HARRY J
- [Y] US 1411779 A 19220404 - GLAZE HERBERT L
- [Y] US 2219174 A 19401022 - JASPER DERRY
- [Y] US 2540844 A 19510206 - STRAUSS ORVILLE L
- [Y] GB 224237 A 19250226
- [Y] US 2844078 A 19580722 - SHERMAN WHITNEY D, et al
Designated contracting state (EPC)
AT BE CH DE FR IT NL SE
DOCDB simple family (publication)
EP 0063868 A1 19821103; EP 0063868 B1 19850626; AT E13993 T1 19850715; AU 556239 B2 19861030; AU 8231282 A 19821021; DE 3264391 D1 19850801; GB 2098921 A 19821201; GB 2098921 B 19841205; JP H05215 B2 19930105; JP S57181849 A 19821109
DOCDB simple family (application)
EP 82301587 A 19820325; AT 82301587 T 19820325; AU 8231282 A 19820402; DE 3264391 T 19820325; GB 8112214 A 19810416; JP 6226882 A 19820413