WO1995006605A1 - Element rapporte pour recipient de boisson - Google Patents

Element rapporte pour recipient de boisson Download PDF

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Publication number
WO1995006605A1
WO1995006605A1 PCT/GB1994/001874 GB9401874W WO9506605A1 WO 1995006605 A1 WO1995006605 A1 WO 1995006605A1 GB 9401874 W GB9401874 W GB 9401874W WO 9506605 A1 WO9506605 A1 WO 9506605A1
Authority
WO
WIPO (PCT)
Prior art keywords
insert
container
pressure
drink
space
Prior art date
Application number
PCT/GB1994/001874
Other languages
English (en)
Inventor
Edward Roger Costello
Adrian Cyrus Jahina
Original Assignee
Paktek Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB939318111A external-priority patent/GB9318111D0/en
Priority claimed from GB939318647A external-priority patent/GB9318647D0/en
Priority claimed from GB939321262A external-priority patent/GB9321262D0/en
Priority claimed from GB9414845A external-priority patent/GB9414845D0/en
Application filed by Paktek Limited filed Critical Paktek Limited
Priority to AU75041/94A priority Critical patent/AU7504194A/en
Publication of WO1995006605A1 publication Critical patent/WO1995006605A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
    • B65D85/73—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials with means specially adapted for effervescing the liquids, e.g. for forming bubbles or beer head

Definitions

  • This invention relates to an insert for a drink container and, in
  • Inserts of a variety of types have been proposed for inclusion in drink containers, in particular for use with drink containers which contain beer under pressure.
  • the object of these inserts is to release gas into the beer when the drink container is opened and thereby to cause the formation of an enhanced "creamy" head on the beer.
  • Known inserts have not been entirely satisfactory and are of limited applicability.
  • the insert comprises a vessel having a hollow part, closed at one end and open at the other, and, slidably and sealingly engaged with the open end, a plunger part and valve means permitting only under certain relative pressure conditions inside and outside the vessel egress of material from the vessel or egress of material into the vessel.
  • inserts are also liable to jamming in operation.
  • the present invention is concerned with providing an insert for use in a drink container in which the above disadvantages are alleviated if not fully overcome.
  • an insert for inclusion, and use, in a drink container which insert includes:
  • the insert is inserted, or assembled, in a drink container free from drink such that the space is at substantially ambient pressure, and upon the filling of the drink container with drink, and any further treatments including sealing of the drink container, the contents of the drink container are caused to be in a pressurised state and the thin wall section of the insert collapses, or partially collapses, causing the pressure in the space to equilibriate with the surrounding atmosphere pressure, and the insert is provided with means to hold the insert in the collapsed position, whereupon releasing the pressure in the drink container the hermetic seal is destroyed causing the material in the space to be released into the drink in the drink container.
  • the present invention has the advantage over those previously described in that the insert relies on well proven and cost effective manufacturing techniques. Further, as no mutually moving components are involved there are no chances of the insert jamming.
  • the insert comprises a substantially rigid frame having a number of collapsible convex surface which collapse inwardly on application of a pressure across them.
  • an insert for a drink container comprises a base section and a top section defining a space which is hermetically sealed from its surroundings; and valve means for destroying the hermetic seal; in which the based and/or top include at least a part which is deformable; in which the insert is inserted or assembled at substantially ambient pressure and subsequent pressurisation of the container causes the deformable part or parts to collapse until the space within the insert equilibriates with the pressure within the container; and in which the insert is held in the collapsed position and the release of the pressure within the container causes the valve means to open and break the hermetic seal, causing the contents of the insert to be released into the container.
  • an insert for a drink container comprises at least one section defining a space which is hermetically sealed from its surroundings; and valve means for destroying the hermetic seal; in which one or more of the sections includes at least a part which is deformable; in which the insert is inserted or assembled at substantially ambient pressure and subsequent pressurisation of the container causes the deformable part of parts to collapse until the space within the insert equilibriates with the pressure inside the container; in which the insert is formed from a material of which the actual resilience causes the insert to be held in the collapsed position; and in which the release of the pressure within the container causes the value means to open and break the hermetic seal, causing the contents of the insert to be released into the container.
  • the base section may be seam welded to the top section, or may be co-formed with the top section by blow moulding a one-piece insert.
  • the insert is formed from a thermoplastically behaving polymeric material, and most preferably, polypropylene.
  • the insert is formed from a suitable metal material, for example aluminium or mild steel. Furthermore it is preferable to use a laminate of metal and polymeric material in order to prevent direct contact between metal and the contents of the drink container. It is a further advantage that use of a metal/polymer laminate avoids the need for a non-oxiding gas within the insert.
  • the insert needs to be formed with dimensions that will enable it to collapse in a controlled fashion under the pressures which will normally be experienced in a drink container during the canning operation, i.e. between 30 and 90 psi.
  • the insert needs to be designed to operate under the conditions which will be experienced in a particular system.
  • the thin walled section preferably, has a thickness in the region of 0.3 to 0.45 mm, and most preferably in the order of 0.35 mm.
  • the thin walled section preferably, has a thickness in the region of .09 mm to 0.2 mm, and most preferably, 0.12 mm.
  • the thin walled section preferably, has a thickness in the region of 0.12 mm to 0.18 mm, and, most preferably in the order of 0.15 mm.
  • the insert is formed from a metallic material
  • the actual resilience of the metallic material can act to provide the means to hold the insert in a collapsed position.
  • the resilience of the metallic material can be used to provide assistance in holding the insert in a collapsed position and a second means to hold the insert in a collapse position will be provided.
  • the means to hold the insert in the collapse position comprises a number of posts which are fixedly secured to the insert so that they are stable in space during collapse of the insert and which posts pass through holes as the insert collapses, with the post carrying detent means which pass through the holes in one direction only and so act to prevent the insert re-establishing itself when the pressure in the drink container is relieved.
  • the means to hold the insert in a collapsed position comprises a shell member having a collar, which shell member moves in space as the insert collapses so that the collar acts against a number of posts which are fixedly secured to the insert so that they are fixed in space as the insert collapses and which post carry detent means so that as the insert collapses the post moves through holes provided in the insert and the detents act to lock the insert in position and prevent the insert from re-establishing itself.
  • the posts provided with the above arrangements can be caused to move outwardly so that they engage the walls of a drink container and act to stabilise the insert within the drink container.
  • the insert will be provided with means which act to stabilise the insert in the drink container.
  • the insert will be held in a position in the drink container relative to the walls of the drink container and, therefore, it will not be able to move around and rattle in the drink container.
  • the means which act to stabilise the insert in the drink container may be any one of those used with the presently known forms of inserts for use with drink containers, for example, the insert could form an interference fit with the walls of the drink container
  • the means to stabilise the insert in the container may be provided by an adhesive applied between the insert and the inside wall of the container. Practically, the adhesive would be applied between the base portion of the insert and the bottom of container.
  • the means may be provided by a sucker or suckers attached to either the insert or the container, and adapted to grip the other by means of suction cups.
  • a further alternative is provided by flexible magnets, which may be deployed, one inside the insert itself and another outside the base of the container. If a steel container is used then there may not be the need for the second container located magnet.
  • the base portion of the insert may be shaped, or profile to match the inner profile of the container bottom, this will assist location and increase the ability to secure the insert by the means described above.
  • the thin walled section comprises two collars which are arranged to deform outwardly, and act like a bellows, the bellows forming the means which stabilise the insert in the drink container.
  • the thin walled section is provided with scoring which acts to assist and control the collapse of the insert.
  • the insert comprises a thin walled envelope having a base section and a top section wherein the envelope has at least one spiral of increased thickness extending between the base section and the top section.
  • the means to destroy the hermetic seal provided in accordance with the present invention can take any suitable form, and simply in its broadest term acts like a pressure actuated valve means.
  • the means comprises a deformable member which under the pressure differential variations experienced by the insert with regard to its ambient deforms and upon the drink container being opened deforms sufficiently to puncture on a spike.
  • the spike could be a solid or hollow like spike, for example a hypodermic needle to assist in the escape of gas from the insert to the beverage.
  • any other suitable means could be used, such as a septum type device, favoured by some people.
  • the insert includes: a base section and a top section separated by a wall section, with sections together define a chamber, the insert being capable of collapsing when the external pressure increases above that within the chamber by a first predetermined amount and being capable of being held in that reduced volume state, and the insert further including valve means for releasing the contents of the chamber when the external pressure falls below that within the chamber by a second predetermined amount; in which the valve means comprises a septum of elastomeric material fixed against a section of the insert; said section having a first hole and the septum having a pinhole or slit adapted to communicate with the first hole ; the pin hole or slit being normally held closed by the resiliency of the septum but opening in the response to an external pressure lower than that within the chamber by the second predetermined amount, thus allowing the insert contents to be released into the container.
  • the septum is fixed against the insert section by a guide member having an aperture in alignment with the pinhole or slit, the aperture being of a size such that the lower external pressure causes the septum to be deflected outwardly in a controlled manner through the aperture.
  • the chamber may contain a gas or mixture of gases.
  • Figure 1 shows a schematic representation of a design of insert made in accordance with the present invention
  • Figure 2 shows a schematic representation of a secured design of an insert made in accordance with the present invention
  • Figure 3 shows a schematic representation of a third design of an insert made in accordance with the present invention.
  • Figure 4 shows a schematic representation of a fourth design of an insert made in accordance with the present invention
  • Figures 5 to 9 show a schematic representation of the action of a fifth design made in accordance with the present invention
  • Figure 10 shows a schematic representation of a sixth design of an insert made in accordance with the present invention.
  • Figure 11 shows a schematic representation of a seventh design of an insert made in accordance with the present invention.
  • Figures 12 and 13 show a schematic representation of an eighth alternative design of an insert made in accordance with the present invention.
  • Figures 14 and 15 show a schematic representation of a ninth alternative design of an insert made in accordance with the present invention.
  • Figure 16 shows a schematic representation of a suitable means to hold the insert in a collapsed position
  • Figure 17 shows a schematic representation of a second suitable means to hold the insert in a collapsed position
  • Figure 18 and 19 show a schematic representation of a suitable alternative means to release the material into the drink.
  • FIG. 1 of the accompanying drawings there is shown a first embodiment of an insert made in accordance with the present invention, which insert is intended for use with beer containers to be manufactured under standard manufacturing conditions.
  • the insert is manufactured from polypropylene and comprises two members which are adhesively adhered to one another.
  • the insert comprises: a base section 1; a thin walled section 2 which is formed as a unitary member with the base section 1 and has an overall thickness of around 1.5 mm with an ultra thin section 3 having a thickness of around .35 mm; a top section 4 having circumferential groove 5 into which the thin walled section 2 remote from the base section 1 is adhesively secured, wherein the base section 1, thin walled section 2 and top section 4 define a space 6;
  • the insert has an overall diameter of 50 mm and the height of 40 mm with a base thickness of around 10 mm, and is weighted so that it is base heavy in the installation condition. Further, the insert is weighted so that it does not tend to float to the top of the drink container when in use.
  • the insert is provided with means in this case an interference fitting skirt 10, which stabilises the insert in the drink container and prevents the insert from moving about in the drink container.
  • the insert In use the insert is disposed in the drink container so that the base section 1 of the insert contacts the base of the drink container.
  • the drink container is then filled with the drink, and undergoes further treatments such as sealing of the container and pasteurisation of the drink contained therein in the normal fashion adopted by the industry.
  • These processes act to increase the pressure in the drink container, and this increase in pressure causes the thin walled section 2, and in particular the ultra thin wall section 3, to collapse inwards so that the space 6 of the insert remains at a pressure substantially in equilibrium with the pressure of the surrounding atmosphere.
  • the pressure differential between the space 6 and the ambient significantly increases causing the membrane 8 to puncture on the point 9 and releasing the material in the space 6 through the puncture or possibly via the point 9 if this is hollow into the drink in the container.
  • the material in the space 6 of the insert will be a gas and if the drink in the container is beer, frothing of the beer will occur.
  • the insert as shown in figure 1 is formed from a suitable metal material, such as aluminium or mild steel and is substantially as described above. Similar numbers have been used to describe similar components, and therefore no further description will be given here.
  • the thin walled section 2 and 3 will have the following thicknesses 0.25 mm and 0.1 mm respectively.
  • the resilient nature of the metal material can be utilised in order to provide the means to retain the insert in the collapsed state and consequently no further means will be required.
  • FIG 2 of the drawings there is shown a second embodiment of an insert made in accordance with the present invention.
  • This embodiment is substantially the same as that described with reference to figure 1 of the accompanying drawings and therefore similar numerals have been used to describe similar components and further description will not be given.
  • the thin walled sections 2 and 3 are provided with scoring 15 in order to assist and control the fashion in which the insert will collapse upon use, and exertion of a pressure differential.
  • FIG. 3 of the accompanying drawings there is shown a third embodiment of an insert made in accordance with the present invention.
  • This particular embodiment of insert is very similar to that described with reference to figures 1 and 2 of the accompanying drawings and similar numbers have been used to describe similar components. Consequently further description will not be given.
  • a method of delivery uses a a septum type device disposed in the base section 1 of the insert.
  • An insert 11 is formed in the base section 1 and the throughbore 7 is disposed to communication between the insert 11 and the space 6.
  • a disc 12 having a central throughbore 13 is fully disposed in the insert 11, which disc 12 acts to locate and hold a septum 14 in position in the inset between the base section 1 and the disc 12.
  • the septum 14 is formed from an elastomeric polymer which has a slot formed therein which is normally closed due to the resiliency of the polymer.
  • the septum is supported by the base section 1, the throughbore 7 being large enough to allow communication between the space 6 and the exterior of the insert but small enough to prevent the septum 14 from deforming inwardly and opening the throughbore 7 when the exterior pressure becomes greater than the pressure within the space 6.
  • the central bore 13 of the disc is large enough to allow the septum to open when the exterior pressure falls below that within the space 6, such as will occur when the container is opened, thus breaking the hermetic seal.
  • the septum 14 is in alignment with the throughbore 13 and is only able to deflect in the location of the throughbore 13 so that the disc 12 also serves to control the opening of the septum and the particular pressure at which the septum is driven outwards sufficiently to open.
  • both the throughbore 7 of the insert and the central bore 13 of the disc are in general alignment, so that on release of the pressure in the drink container the material in the space flows through the aligned throughbore.
  • the throughbores can communicate in some way to allow material in the space to escape from the insert.
  • FIG 4 of the accompanying drawings there is shown in a fourth embodiment an alternative septum device to that described with reference to figure 3 of the accompanying drawings. Similar numbers have been used to describe similar components, and no further description of these components will be given here.
  • the disc 12 is not fully disposed in the inset 11.
  • FIG. 5 of the accompanying drawings there is shown a fifth embodiment of insert made in accordance with the present invention and disposed in a drink container.
  • the insert comprises:- an outer member 101 having a generally cup shaped configuration which when disposed in the drink container is in an inverted position; a membrane 103 disposed towards the open end of the member 101 and which acts to define a space 104 with the member 101; and a disc like member 105 having a number of apertures 106 and a point 107 which is disposed in the open end of the member 101 but not in the space 104.
  • the member 101 is formed from polypropylene with a general thickness of 1.5 mm and comprises: an end section 108; and a circumferential wall 109 with two circumferentially extending collars 110 of reduced thickness, the collars having a thickness of 0.35 mm.
  • the member 101 is provided with scoring 111 in its outer surface in the area adjacent to the boundary of the collars 110 with the areas of greater thickness in the wall member and scoring 112 in the inner surface of the member 101 centrally within the collars 110.
  • the insert is weighted so that when surrounded by drink there is no tendency for the insert to float.
  • the insert In use the insert is disposed in the drink container so that the open end of the member 101 of the insert contacts the base of the drink container.
  • the drink container is then filled with drink and undergoes further treatments such as sealing of the container and pasteurisation of the drink therein in the normal fashion used in the industry.
  • These operations/treatments act to raise the pressure in the drink container and this increase in pressure causes the two circumferentially extending collars 110 to deform outwardly along the scoring lines 111 and 112 so as to form a bellows as shown in figures 6 to 9 of the accompanying drawings during collapse of the insert.
  • the bellows sections (collars 110) are flat forming two skirt members which act to stabilise the insert in the drink container.
  • the pressure in the drink container is slightly relieved but the atmosphere pressure in the container remains above that of the surrounding atmosphere to the drink container.
  • suitable means (not shown) is provided to prevent the insert from re-establishing itself. Consequently the space 104 is maintained at a pressure in excess to its immediate ambient pressure.
  • this pressure differential is not sufficient to cause the membrane 103 to be punctured by the point 107.
  • the pressure differential between the space 104 and the ambient significantly increases causing the membrane 103 to puncture on the point 107 and so releasing the material in the space 104 through the puncture, or possibly via the point 107 if this is hollow into the drink
  • the insert as shown in figure 5 of the accompanying drawings is formed from a suitable metal material, such as aluminium or mild steel, and is substantially as described above.
  • the reduced thickness collars of the member 101 have a thickness of 0.15 mm whilst the general thickness of the member 101 is 0.25 mm.
  • FIG. 10 of the accompanying drawings there is shown a sixth embodiment of insert made in accordance with the present invention.
  • the insert is formed from polypropylene and comprises: a base member 201; an inverted cup shaped member 202 with a general thickness of 0.35 mm; means 203 for retaining the cup shaped member in a position; a membrane 217 : and, a disc shaped member 204 with a series of apertures 205 and a point 206, which is disposed below the membrane 217.
  • the base member 201 has: a groove 207 circumferentially extending around the top surface of the base member 201 towards the periphery of the base member; a centrally disposed throughbore 208; and, a series of holes 209 between the groove 206 and the edge of the base member 201.
  • the inverted cup shaped member 202 is formed with generally uniformed thickness, and has an end section 210 and a circumferential wall section 211 surrounding the end section 210.
  • the wall section 211 is adhesively adhered to the groove 207 in the base member 201.
  • a circumferentially extending collar 213 extends around the. outside of the end section 210 and circumferential wall section 211 of the inverted cup shaped member 202.
  • a series of holes 214 is formed in the collar 213 so that these holes may co-operate with the series of holes 209 in the base member 201.
  • a bead 214 having an increased thickness of 2.5 mm is formed in the wall section 211 in a spiral configuration running from the base section 201 to the end section 210.
  • the means 203 for retaining the insert in a position comprises: a number of posts 215, each of which is disposed in a hole in the series of holes 209 and extends through a hole in the circumferentially extending collar 213 of the inverted cup shaped member 202; and detent conical formations 216 formed on the posts which pass through the holes in the collar in one direction but are prevented from doing so in the other direction.
  • Vhen assembled the base member 201 an inverted cup shaped member 202 define a space 218 in which adjacent the base member 201 is disposed the membrane 217. In this fashion the membrane seals the material in the space 218.
  • the insert In use the insert is disposed in the drink container so that the base member 201 of the insert is in contact with the base member of the drink container.
  • the drink container is then filled with drink, and undergoes further treatments such as sealing of the container and pasteurisation of the drink in the normal fashion used in the industry.
  • This acts to raise the pressure in the drink container, and this increase in pressure causes the inverted cup shaped member 202 to collapse and the posts 215 with detent conical formations 216 to move through the holes in the collar 213 of the inverted cup shaped member 202.
  • the end of the post 215 are thus moved outwardly and engaged with the walls of the drink container so as to stabilise the insert in the drink container with regard to the walls thereof.
  • the drink container is opened the pressure differential between the space 218 and the surrounding atmosphere significantly increases causing the membrane 217 to puncture on the point 206 so releasing the material in the space 218 through the puncture, or possibly via the point 206 if this is hollow, into the drink in the container.
  • FIG 11 of the accompanying drawings there is shown seventh embodiment made in accordance with the present invention. This embodiment is similar to that shown and described with reference to figure 10 of the accompanying drawings, and similar numbers have been used to describe similar components. Consequently no further description of these components will be given here.
  • the insert is formed from polypropylene and comprises:
  • top surface 251 having the same thickness as the cylindrical side wall 250, and being joined to the cylindrical side wall by webbing 252 which has a thickness of 0.2 mm ;
  • valve means 255 formed in the top surface 251.
  • the cylindrical side wall 250, top surface 251, bottom surface 253 and webbings 252 and 254 define a space 256 which is hermetically sealed from the surrounding environment.
  • valve means 255 is a septum type device of the same general class as described with reference to Figures 3 and 4 of the accompanying drawings and such basic description is incorporated herein by way of reference.
  • the insert will also be provided with means (not shown) which stabilise the insert in the drink container and prevent the insert from moving about in the drink container.
  • the insert In use the insert is disposed in a drink container so that the bottom surface 253 of the insert contacts the base of the drink container.
  • the drink container is then filled with drink, and undergoes further treatment such as sealing of the container and pasteurisation of the drink contained therein in a normal fashion adopted by the industry.
  • These processes act to increase the pressure in the drink container, and this increase in pressure causes the top surface 251 and bottom surface 253 to move towards one another and therefore the space 256 to collapse inwards so that the atmosphere in the insert remains at a precious substantially and equilibrium with a pressure of the surrounding atmosphere.
  • the angular relationship, and thickness of the polypropylene from which the insert is made, of the cylindrical side wall 250, top surface 251, bottom surface 253, and the respective webbings 252 or 254 act as the means to prevent the insert re-establishing itself during this cooling. Consequently, the space 256 is maintained at a pressure in access to its ambient pressure. However, this pressure, or more particularly the pressure differential between the space and the surrounding atmosphere is not sufficient to open the septum and cause release of the material within the insert.
  • the pressure differential between the space 256 and the surrounding atmosphere significantly increases causing the septum to open so releasing the material in the space through the septum and into the drink in the container.
  • the material in the space 256 of the insert will be a gas and if the drink in the container is beer, frothing of the beer will occur.
  • the device is manufactured from aluminium and/or mild steel and the appropriate wall thicknesses mentioned above with regard to other embodiments are adopted.
  • the insert is formed from a coated metal and comprises a drawn cup having a base 263 and a cylindrical side wall 260 joined to an end 261 by a seaming operation or other conventional technique.
  • the base 263 and side wall 260 are of substantially the same thickness, for example 0.27 - 0.28 mm, and the end 261 is slightly thinner, for example 0.223 or 0.235mm, although it may be the same thickness as the base and side wall.
  • the height of the side wall is limited to less than 30 mm in order to prevent the side wall from deforming during pressurisation.
  • the base 263 of the cup is formed with a septum-type valve 266 which has been described in more detail with reference to figures 3 and 4 above.
  • the septum may be formed in the end 261, if preferred.
  • the insert will also be provided with means (not shown) which stabilise the insert in the drink container and prevent the insert from moving about in the drink container.
  • the use of metal for forming the insert ensures that the base and end are maintained in their deformed state and the insert is prevented from re-establishing itself during cooling in storage.
  • the septum is designed so that any increase in external pressure is not capable of opening it, even after the insert has collapsed. Furthermore, the large throughbore in a disc is used to control the ' pressure at which the septum opens so that the septum will open when the drink container is opened. Vhen this occurs, the pressure differential is such that the septum opens and material is released from the chamber through the septum and into the drink in the container. Normally, the material is gas, so that if the drink in the container is beer, frothing of the beer will occur.
  • the insert is manufactured from a non-toxic polymer but most polymers will require means for locking the insert in its collapsed state and the thickness of the insert will need to be adjusted to ensure that deformation occurs as required.
  • Metal is, however, a preferred material for the insert provided that it is coated in some way since it is more environmentally acceptable than are plastics materials.
  • the insert is disposed in a drink container so that the bottom surface 263 of the insert contacts the base of the drink container.
  • the drink container is then filled with drink, and undergoes further treatment such as sealing of the container and pasteurisation of the drink contained therein in a normal fashion adopted by the industry.
  • These processes act to increase the pressure in the drink container, and this increase in pressure causes the end 261 and base 263 to move towards one another and therefore space 266 to collapse inwards so that the atmosphere in the insert remains at a pressure substantially in equilibrium with a pressure of the surrounding atmosphere.
  • figure 16 of the accompanying drawings there is shown one form of means to retain the insert in the collapsed condition.
  • an angled collar member 301 is formed on an outer shell member 302 which moves down as the insert collapses and pushes a number of posts outwardly so that they engage with the sides of the drink container.
  • the post 304 moves through holes, and detent means 305 on the post engaged with the holes to prevent the insert from re-establishing itself.
  • FIG 17 of the accompanying drawings a second arrangement of means to retain the insert in a position is shown. This arrangement is similar to that described above with regard to figure 12 of the accompanying drawings except that the posts 304 act against a second set of posts 306 which then engaged the sides of the drink container
  • the mechanism as shown can be formed in the base, top or wall section of an insert in accordance with the present invention and comprises a section 350 of reduced thickness, (although this is not essential), formed in the insert which section 350 has formed therein one a more apertures 351 (in this case a circular pattern of six aperatures is shown).
  • a sealing ring 352 is secured over the section 350 and is hermatically sealed to the insert so that the space in the insert is isolated from drink contained in the drink container.
  • the sealing ring 352 is formed from a suitable material, such as a laminate of polypropylene. Aluminium foil and polypropylene, and comprise :
  • the adhering portion 353 and central flap section 354 are separated from one another, over a significant proportion of these length by rupturable means 356.
  • This rupturable means may for example comprise a weakened section, which does not when formed include any perforations enabling communication between the two sides of the sealing ring 352.
  • the weakened section shown may have a break therein to act like a hinge once the rupturable means rupture. This constitutes in this particular embodiment the retaining means 355.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

L'élément rapporté comprend une base (263) et un sommet (261) délimitant un espace (266) scellé hermétiquement par rapport à son environnement, ainsi qu'une soupape (265) servant à détruire le scellement hermétique; la base et/ou le sommet comprennent une partie déformable. L'élément rapporté est inséré ou assemblé à la pression ambiante et la pressurisation ultérieure du récipient provoque l'affaissement de la partie déformable de la base et/ou du sommet jusqu'à ce que l'espace (266) à l'intérieur de l'élément rapporté établisse l'équilibre avec la pression régnant à l'intérieur du récipient. L'élément rapporté étant maintenu dans la position affaissée, le relâchement de la pression du récipient provoque l'ouverture de la soupape (265) et le contenu de l'élément rapporté se libère dans le récipient.
PCT/GB1994/001874 1993-09-01 1994-08-31 Element rapporte pour recipient de boisson WO1995006605A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU75041/94A AU7504194A (en) 1993-09-01 1994-08-31 Insert for drink container

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB939318111A GB9318111D0 (en) 1993-09-01 1993-09-01 Insert for drink container
GB9318111.3 1993-09-01
GB9318647.6 1993-09-08
GB939318647A GB9318647D0 (en) 1993-09-08 1993-09-08 Insert for drink container
GB9321262.9 1993-10-14
GB939321262A GB9321262D0 (en) 1993-10-14 1993-10-14 Insert for drink container
GB9414845A GB9414845D0 (en) 1994-07-22 1994-07-22 Insert for drink container
GB9414845.9 1994-07-22

Publications (1)

Publication Number Publication Date
WO1995006605A1 true WO1995006605A1 (fr) 1995-03-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/001874 WO1995006605A1 (fr) 1993-09-01 1994-08-31 Element rapporte pour recipient de boisson

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AU (1) AU7504194A (fr)
WO (1) WO1995006605A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996020883A1 (fr) * 1994-12-29 1996-07-11 Carlsberg A/S Production de mousse pour boissons
WO1996038350A1 (fr) * 1995-06-01 1996-12-05 Whitbread Plc Recipient pour boissons
EP0958187A1 (fr) 1995-12-13 1999-11-24 Rocep Lusol Holdings Limited Dispositif de transfert d'un fluide dans le liquide d'un recipient

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007326A1 (fr) * 1989-11-22 1991-05-30 Whitbread Plc Recipient pour boisson gazeuse

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007326A1 (fr) * 1989-11-22 1991-05-30 Whitbread Plc Recipient pour boisson gazeuse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996020883A1 (fr) * 1994-12-29 1996-07-11 Carlsberg A/S Production de mousse pour boissons
WO1996038350A1 (fr) * 1995-06-01 1996-12-05 Whitbread Plc Recipient pour boissons
EP0958187A1 (fr) 1995-12-13 1999-11-24 Rocep Lusol Holdings Limited Dispositif de transfert d'un fluide dans le liquide d'un recipient

Also Published As

Publication number Publication date
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