EP 0023703 B1 19830525 - PRESSURE RELIEF VALVE FOR PACKING CONTAINERS
Title (en)
PRESSURE RELIEF VALVE FOR PACKING CONTAINERS
Publication
Application
Priority
DE 2931850 A 19790806
Abstract (en)
[origin: EP0023703A1] 1. A pressure relief valve on a packaging container, in the form of a compound label closing an opening in the packaging container and comprising a flat, flexible cover foil (16) coated over the entire area of one side with adhesive and a valve strip (14) covering the opening and stuck to the cover foil (16) in the central zone and to which is connected a non-adhesive channel zone bounded by adhesive zones and extending to the outer edge of the cover foil (16), characterised in that, the valve strip (14) extends continuously in one piece covering the channel zone and in two opposite directions up to regions of the outer edge of the cover foil (16) opposite to one another.
IPC 1-7
IPC 8 full level
B65D 33/01 (2006.01); B65D 51/16 (2006.01); B65D 77/22 (2006.01); B65D 81/26 (2006.01)
CPC (source: EP)
B65D 77/225 (2013.01)
Citation (examination)
- DE 2537317 A1 19770224 - HESSER AG MASCHF
- US 2946502 A 19600726 - METZGER MELVIN R
Designated contracting state (EPC)
AT BE CH DE FR IT LI NL SE
DOCDB simple family (publication)
EP 0023703 A1 19810211; EP 0023703 B1 19830525; AT E3525 T1 19830615; DE 2931850 A1 19810219; DE 3063481 D1 19830707; ES 494004 A0 19811001; ES 8107111 A1 19811001; JP S5632244 A 19810401; JP S5934585 B2 19840823
DOCDB simple family (application)
EP 80104515 A 19800731; AT 80104515 T 19800731; DE 2931850 A 19790806; DE 3063481 T 19800731; ES 494004 A 19800805; JP 10722880 A 19800806