Dispensing – Processes of dispensing
Reexamination Certificate
2000-04-21
2001-05-08
Kaufman, Joseph A. (Department: 3754)
Dispensing
Processes of dispensing
C222S083000, C222S087000, C222S089000
Reexamination Certificate
active
06227410
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a package having a flexible wall and adapted for liquid products, preferably foodstuff in liquid form, whereby an inner coupling device is provided within unopened portions of the flexible wall, whereby the inner coupling device and an outer coupling device are connectable to each other and whereby the outer coupling device includes a perforation means for making a hole in said unopened portions of the flexible wall such that the liquid product can be discharged from the package through said hole. The invention also relates to a method for manufacturing said package and a coupling therefor.
BACKGROUND OF THE INVENTION
U.S. Pat. No. 4,603,793 relates to a package of flexible wall material and an inner as well as an outer coupling device. At this package, perforation of the flexible wall is carried through simultaneously with the interconnection of the coupling devices. This normally functions well, but leakage may occur at certain flexible wall materials during the connection/perforating step.
The object of the present invention has been to provide a package with improved opening possibilities.
The invention also includes a method for manufacturing said package and a coupling for said package.
Since no holes are made in the flexible wall of the package when the outer and inner coupling devices are connected to each other, it is seen to that no portions of the content of the package can flow or run out of the package. First when this liquid tight coupling has been established, perforation of the flexible wall of the package may occur in a simple and effective manner.
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ASEPT International AB
Kaufman Joseph A.
Tarolli, Sundheim, Covell Tummino & Szabo L.L.P.
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