EP 0547966 A1 19930623 - Tamper-evident zipper closed package.
Title (en)
Tamper-evident zipper closed package.
Title (de)
Sicherheitsverpackung mit wiederverschliessbaren Druckverschlussbändern.
Title (fr)
Emballage inviolable à bandes de fermeture refermables.
Publication
Application
Priority
US 80873991 A 19911217
Abstract (en)
A plastic film container having a tamper-evident feature wherein a bag is provided having first and second opposing film walls (10,11) with a doubled zipper strip (13) between the film walls (10,11) at the bag top, the outer film layers (10,11) of the bag being sealed in a fin seal (12) above the zipper strip (13). Perforation lines (15,16,17,18) extend in alignment through the zipper strip (13) and the outer film layers (10,11) of the bag; sealing strips (19,20) are provided between the doubled zipper strip (13) and the layers of the bag (10,11) to block the perforations in the bag (15,16) and zipper strip (17,18). The zipper strip (13) is sealed to the film layer (10,11) so that as the top is torn off the bag, a portion of the doubled zipper strip (13) will be removed but the remaining sides of the zipper strip (13) will be attached to the bag film walls (10,11) to provide a reclosable bag. <IMAGE>
IPC 1-7
IPC 8 full level
B65D 33/25 (2006.01); B65D 75/58 (2006.01)
CPC (source: EP)
B65D 33/2533 (2013.01); B65D 75/5805 (2013.01)
Citation (search report)
- [XD] US 4846585 A 19890711 - BOECKMANN HUGO [US], et al
- [Y] US 3780781 A 19731225 - URAMOTO T
- [X] EP 0457617 A1 19911121 - MAYER OSKAR FOODS [US]
- [X] EP 0450958 A2 19911009 - MAYER OSKAR FOODS [US]
- [A] EP 0388884 A1 19900926 - ZIP PAK INC [US]
- [A] EP 0371402 A2 19900606 - IDEMITSU PETROCHEMICAL CO [JP]
- [A] EP 0385323 A1 19900905 - ILLINOIS TOOL WORKS [US]
Designated contracting state (EPC)
BE CH DE DK ES FR GB IE IT LI NL PT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 92403423 A 19921216; CA 2083763 A 19921125