EP 0016601 A1 19801001 - Thermoplastic bags.
Title (en)
Thermoplastic bags.
Title (de)
Beutel aus thermoplastischem Material.
Title (fr)
Sacs en matière thermoplastique.
Publication
Application
Priority
US 2089979 A 19790315
Abstract (en)
The present invention relates to handled thermo-plastic bag structures which are designed to avoid stress concentration in the areas of the bag which are most susceptible to rupture. These areas occur principally around the cut-edges which are formed at the bag mouth or around minute nicks and tears immediately adjacent to the bag mouth edge and caused as a result of separating forces developed in an individual bag along a perforating line during typical loading operations. The bag structures are characterized by a plurality of pleats (15) being located along the edges of the bag mouth and in an area of the bag walls adjacent the lower portions of the handles.
IPC 1-7
IPC 8 full level
B65D 33/06 (2006.01)
CPC (source: EP)
B65D 33/065 (2013.01)
Citation (search report)
- [D] US 4085822 A 19780425 - OSBORN PAUL V
- [D] US 3352411 A 19671114 - AUGUST SCHWARZKOPF
- [D] US 3180557 A 19650427 - GUSTAF THULIN STEN
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0016601 A1 19801001; EP 0016601 B1 19830216; CA 1142898 A 19830315; DE 3061964 D1 19830324; ES 249356 U 19800816; ES 249356 Y 19810216
DOCDB simple family (application)
EP 80300740 A 19800311; CA 347368 A 19800310; DE 3061964 T 19800311; ES 249356 U 19800314