Static molds – Including destructible feature
Patent
1994-02-10
1996-06-18
Mackey, James P.
Static molds
Including destructible feature
249110, 249119, 249127, 383 36, 383 38, 383901, D15 90, B65D 3022, B65D 3316, F25C 124
Patent
active
055270123
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a freezing mould bag, especially for freezing ice lumps or ice cubes, and more precisely a freezing mould bag providing a self-closing effect.
Numerous freezing mould bags are known within the art, e.g. from U.S. Pat. No. 3,207,420, Re-issued U.S. Pat. No. 31,890, U.S. Pat. No. 4,822,180, corresponding to European Patent No. 0 264 407, European Patent Application No. 0 129 072, International Patent Application, Publication No. WO82/00279, International Patent Application, Publication No. WO87/01183, and International Patent Application, Publication No. WO86/04561, to which Patents and Patent Applications reference is made, and which U.S. Patents are herewith incorporated in the present specification by reference.
In the above-mentioned re-issued U.S. Pat. No. Re 31,890, a freezing mould bag is described and disclosed, vide FIG. 7 and the corresponding part of the specification, comprising two closing flaps providing a check valve of a self-closing freezing mould bag.
European Patent No. 0 264 407 also discloses a freezing mould bag which according to the specification of the European Patent is adapted to provide a self-closing function. The freezing mould bag according to the European Patent comprises two closure flaps defining closure pockets of the freezing mould bag and is stated to seal the interior of the freezing mould bag and to prevent that liquid or water leaks from the interior of the freezing mould bag, provided the interior of the freezing mould bag is filled with liquid, preferably water, intended to be frozen to ice lumps or ice cubes.
In the specification of the above-mentioned European Patent No. 0 264 407 it is specifically explained how the self-closing function is established as the freezing mould bag is initially completely evacuated prior to the stage of filling the freezing mould bag with liquid or water to be frozen within the freezing mould bag, and as the filling of the freezing mould bag results in a complete filling of the closure pockets of the freezing mould bag. The complete filling of the closure pockets of the freezing mould bag further results in that the closure flaps of the freezing mould bag are pressed against one another in consequence of tensioning of the foils of the freezing mould bag, which tensioning is established in specific weld seams providing a constriction of an inlet channel of the freezing mould bag, which inlet channel is of a configuration basically tapering from an inlet opening of the freezing mould bag towards the interior of the freezing mould bag. Thus, the complete filling of the interior of the freezing mould bag is consequently based on a completely evacuated state of the interior of the freezing mould bag prior to the filling of the interior of the freezing mould bag and a complete filling of the interior of the freezing mould bag, and specifically a complete filling of the closure pockets of the freezing mould bag.
Alternatively, the complete filling of the interior of the freezing mould bag according to the above-mentioned European Patent No. 0 264 407 is believed to be based on the following relations, although the European Patent is completely mute regarding these relations. It is believed that the closure pockets may be vented through venting channels provided between the upper turned-in edge of the freezing mould bag and the circumferential weld seam which according to the drawing of the European Patent is provided at a small distance below the upper turned-in edge of the freezing mould bag.
The self-closing function of the freezing mould bag according to the above-mentioned European Patent No. 0 264 407 is, as explained in the European Patent, dependent on a complete filling of the closure pockets, which complete filling is further dependent on, in the first place, a completely evacuated state of the interior of the freezing mould bag prior to initiating the filling of the freezing mould bag, or, in the second place, dependent on a venting of the closure pockets through the abo
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Vangedal-Nielsen Erling
Vinkel Erik K.
Mackey James P.
Schur Consumer Products A/S
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