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US 5,199,618 AGranted
Pouring device for container for flowable material
AssigneeTetra Alfa Holdings S.A.
InventorsWilhelm Reil, Ulrich Deutschbein, Gerd Knobloch, Udo Liebram
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AssigneeTetra Alfa Holdings S.A.
InventorsWilhelm Reil, Ulrich Deutschbein, Gerd Knobloch, Udo Liebram
Estimating the term…
Described is a pouring device of plastic material for fitting to the hole of a flowing medium pack, wherein the pouring device (10) has a portion (20) which is openable by means of a tearing line (25). So that packs of widely different configurations and consisting of a wide range of different materials can be produced in such a way as to be sealed and easily openable, the pouring device (10) has at least a bottom portion (20) and a closure portion (21) which are pivotally movably connected together by way of a hinge (22), wherein the tearing line (25) is disposed in the bottom portion (20). The process for the production of such a pouring device is characterised in that a series of blanks which are arranged in succession in a flat condition and which are in line-wise contact with each other are formed from an endless web of plastic material which can be subjected to deep drawing, and rolled up to form a coil, and the blanks are separated off prior to fitting to the hole in the pack.
A pouring device of plastic material for fitting to an opening of a container for flowable material, which comprises a bottom portion having a cup-shaped depression with a bottom wall and an upstanding collar for engaging with an edge of an open container, said bottom wall having a tearing line for opening the pouring device, and a closure portion having a cup-shaped depression with a bottom wall sealed at least along a part of said tearing line of said bottom wall of said bottom portion and an upstanding collar at the edge thereof pivotally connected to said bottom portion by hinge means.
Dependencies are inferred from the claim text.