Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent
1992-05-05
1994-01-18
Elkins, Gary E.
Receptacles
Receptacle having flexible, removable inner liner
Means for venting air trapped between the liner and its...
53449, 53456, 220449, 220465, B65D 556, B65D 572
Patent
active
052794407
DESCRIPTION:
BRIEF SUMMARY
The invention relates to tamperproof packaging having an inner envelope and an outer envelope.
The following various different forms of packaging are already known for contents such as beverages, cleaning materials, cosmetics (or equivalents) that are liquid, semiliquid, or solid, and that are for individual or nearindividual use:
bottles, flasks, jars, cans, pots (or equivalents), in particular made of plastic by extrusion blow-molding high density polyethylene. Such packaging is free-standing and substantially undeformable, being about 8/10-ths of a millimeter thick, for example, for contents of the order of one liter or one-and-a-half liters. Reference may be made, for example, to Document DE-A-3 139 083 which describes a plastic container including stiffening projections. When so desired, such packaging includes a tamperproof stopper or capsule, with tamperproofing being provided by the special structure given to the stopper or to the capsule.
Bags or sachets for liquids, generally intended for providing a single dose of a consumable, having no opening or associated closure member, and with the limitations in use that stem therefrom.
Cases, boxes, or crates made of cardboard or of complex materials that may be folded or not. Such packaging generally includes an opening that results from disconnecting flaps that were previously stuck or stapled together. For that reason, such packaging cannot be effectively and repeatedly closed after use.
Bag-in-boxes each comprising an outer envelope in the form of a cardboard box together with a flexible inner envelope in the form of a bag which is held and carried by the outer box. Either the inner envelope merely lines the inside of the outer box, in which case the packaging suffers from the same opening and closing defects as the above-mentioned cardboard boxes or the like, or else it is provided with opening and closing means in the form of a cock, plug, or capsule. In both cases the inner bag remains rigidly fixed to the outer envelope at some positions and filling such packaging is complex. When a cock, plug, or capsule is provided, the packaging either has no tamperproofing means, or else it has such tamperproofing means forming an integral portion of the cock, plug, or capsule.
The state of the art can be illustrated in particular by the following documents: GB-A-1 466 854 which relates to packaging derived from the general bag-in-box type packaging having a non-tamperproof closure plug. U.S. application Ser. No. 4 169 540, U.S. application Ser. No. 4 413 464, U.S. application Ser. No. 4 715 511, and EP-A-0 359 968, which relate to outer boxes having flexible inside envelopes and no tamperproof closure system. EP-A-0 134 147 which relates to packaging for a liquid under pressure such as a carbonated beverage, the packaging comprising a rigid outer envelope such as a cask, a flexible inner envelope, a removable cover constituting a piston, and a discharge cock at the bottom. That packaging is complex and poorly adapted to individual use. It has no tamperproofing. FR-A-2 594 098 relates to packaging having two casks one inside the other, filling taking place between them, and a cover being optional. FR-A-2 198 867 relates to a can constituted by a cardboard box provided with a cover that can be folded down, and by a tank of plastic material that is intimately engaged in the cardboard and is itself provided with a spring cover.
Document BE-A-625 230 describes composite packaging having an outer envelope and an inner can secured inside the outer envelope but detachable therefrom. It is optionally necessary to add reinforcement interposed between the outer envelope and the inner can in order to obtain the required rigidity and strength. That packaging, like the packaging of the same type described in Document GB-A-944 565, has no tamperproofing and requires the use of relatively large quantities of materials that are not biodegradable or that are poorly biodegradable.
An object of the invention is to mitigate these drawbacks or limits of known packaging, and more
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Fougeres Michel
Partenay Philippe
Elkins Gary E.
Novembal SA
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