Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent
1991-01-09
1991-12-24
Elkins, Gary E.
Receptacles
Receptacle having flexible, removable inner liner
Means for venting air trapped between the liner and its...
206229, 220465, 229121, B65D 560, B65D 570
Patent
active
050744291
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND
1.0 Field of the Invention
This invention relates to a box blank for a bag-in-box pack for a flowable product which consists of a rigid envelope and - mounted therein- a flexible bag with a closeable outlet bung and an associated opening or bung hole and of a window flap with an associated removal opening in the envelope, the arrangement being such that the window flap is connected to a head flap via a hinge crease and, at its edge opposite the hinge crease, comprises an insertion flap formed thereon via a fold crease.
2.0 Discussion of Related Art
A key feature of packs of this type, which are described in DE-OS 34 10 717, is the sack or bag for accomodating a liquid which is arranged inside a stable packaging container, carton or the like consisting, for example, of corrugated board and which comprises an outlet bung. The outlet bung is generally welded into the bag which is preferably made of plastic. Bag-in-box containers of this type are intended as an environment-friendly alternative to plastic bottles or canisters, being used in particular as a supply pack, for example for domestic or institutional laundry detergents, dishwashing detergents, cleaning products or conditioners and also for beverages, such as wine. In practice, they are designed to accommodate relatively large quantities of liquid, for example up to 30 liters.
To remove the liquid contents, the flexible bag integrated in the packaging container comprises a closeable outlet bung. When the pack is used for the first time, the outlet bung is pulled outwards through an opening, for example a prepunched opening, in one surface, for example the upper surface, of the container. In the pouring position, the outlet bung can be held fast or fixed in the bung hole associated with it in the upper surface of the pack. This withdrawal and fixing of the outlet bung involves considerable effort in cases where the (small) bung hole is designed for a tight fit in order to hold the outlet bung in position. If, by contrast, the bung hole is made larger to simplify withdrawal of the outlet bung from the pack, pouring becomes more difficult because the outlet bung has to be separately held fast during pouring.
Another problem arises when separate disposal of the folding box and the empty plastic bag is required in the interests of pollution control. This is because, if the outlet bung is fixed carefully in the wall of the packaging container for the purpose of convenient handling during pouring, separation of the plastic parts from the parts made of board involves correspondingly significant problems.
To enable the user to dispense the product in question in the proper doses, as in cases where liquids are accommodated in bottles or canisters, it is standard practice to attach dispensing cups or small containers for daily use. Where the liquid is supplied in bottles or canisters, the attached dispenser is pushed for example onto the neck of the bottle or canister or is fastened to the container. This method of attachment always involves the danger that the attached dispenser might be lost in the marketing process, particularly in shops. Moreover, attached dispensers present problems in regard to stacking of the pack. This applies even more so to bag-in-box packs because, basically, packs such as these can be made square shape which is ideal for stacking.
An object of the invvention is to improve a box blank to the extent that a dispenser attached to the pack can be integrated in the pack in such a way that it would be easy to remove and to replace after use so that, in particular, the pack could be reclosed without difficulty, the dispenser being removable and replaceable after use without impairing the handling of the ready-to-use pack.
For a box blank of the type mentioned at the beginning, the solution to this problem as provided by the invention is characterized in that the insertion flap formed from an external head flap is drawn in from both sides at the fold crease and in that an insertion slot securing the insertion flap folded inwards th
REFERENCES:
patent: 2321660 (1943-06-01), Courtney
patent: 2360415 (1944-10-01), Gilbert
patent: 2593019 (1952-04-01), Glaser
patent: 2926832 (1960-03-01), Negoro
patent: 3954220 (1976-05-01), Foster
patent: 4174051 (1979-11-01), Edwards et al.
patent: 4927042 (1990-05-01), Ring
Endler Volker
Konkel Siegfried
vom Hofe Dieter
Elkins Gary E.
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Szoke Ernest G.
Watov Kenneth
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