Bottles and jars – Multilayer barrier structure – Coating or lamination
Reexamination Certificate
2005-04-05
2008-11-18
Weaver, Sue A (Department: 3781)
Bottles and jars
Multilayer barrier structure
Coating or lamination
C215S012100, C215S902000, C220S062210, C220S745000, C220S915000, C222S263000
Reexamination Certificate
active
07451884
ABSTRACT:
A process for the production of a container (1) comprising an outer container (2), an inner bag (3) disposed therein and a pressure equalisation opening (10) disposed in the outer container (2), and also a container (1) produced according to this process, is described, wherein firstly a pre-moulding, comprising two coaxial tubes, is first produced by co-extrusion with the help of a blow mould and with an outwardly-projecting base seam (5) being formed. The process is to form a pressure equalisation opening (10) in the outer container (2) of the container (1) without endangering the integrity of the container (1), wherein a lower wastage rate and higher productivity are to be achieved. This is attained by a process wherein the base seam (5) is partially cut off and a force which acts in the direction of the seam is introduced into the pre-moulding, which still has a temperature of 40° C. to 70° C., which force breaks open and plastically deforms the base seam (5) so that a pressure equalisation opening (10) is formed in the base area (4).
REFERENCES:
patent: 2743038 (1956-04-01), Ferries
patent: 4008830 (1977-02-01), Meshberg
patent: 4657151 (1987-04-01), Cabernoch
patent: 4979631 (1990-12-01), Krishnaukumar et al.
patent: 5301838 (1994-04-01), Schmidt et al.
patent: 5435452 (1995-07-01), Nishigami et al.
patent: 5513761 (1996-05-01), Kobayashi et al.
patent: 5799809 (1998-09-01), Sako et al.
patent: 5921416 (1999-07-01), Uehara
patent: 6083450 (2000-07-01), Safian
patent: 6109468 (2000-08-01), Kneer
patent: 6266943 (2001-07-01), Nomoto et al.
patent: 0812094 (1986-05-01), None
Kuehn Torsten
Metzger Burkhard Peter
Boehringer Ingelheim Pharma KG
Devlin Mary Ellen M.
Morris Michael P.
Weaver Sue A
Witkowski Timothy X.
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