EP 0117177 B1 19861120 - BAG WITH A PRE-ESTABLISHED VACUUM FOR THE CONSERVATION OF GOODS
Title (en)
BAG WITH A PRE-ESTABLISHED VACUUM FOR THE CONSERVATION OF GOODS
Publication
Application
Priority
FR 8301077 A 19830125
Abstract (en)
[origin: US4576283A] Within a bag for vacuum packaging of articles there is created, by means of a separately attached sheet, an auxiliary chamber which is evacuated when the bag is manufactured. This chamber may be placed in communication with the interior of the bag, after the latter has been filled and sealed. Such communication is achieved by piercing or tearing the separately attached sheet, so that the residual air in the sealed bag expands into a greater volume in which it is isolated from the product in the bag.
IPC 1-7
IPC 8 full level
B65D 30/22 (2006.01); B65D 81/20 (2006.01)
CPC (source: EP US)
B65D 31/12 (2013.01 - EP US); B65D 81/2023 (2013.01 - EP US); B65D 81/2038 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
FR 2539709 A1 19840727; FR 2539709 B1 19850426; DE 117177 T1 19841220; DE 3461363 D1 19870108; EP 0117177 A1 19840829; EP 0117177 B1 19861120; US 4576283 A 19860318
DOCDB simple family (application)
FR 8301077 A 19830125; DE 3461363 T 19840124; DE 84400148 T 19840124; EP 84400148 A 19840124; US 57366884 A 19840125