EP1007441A1 - Insert de moussage pour contenant de liquide - Google Patents

Insert de moussage pour contenant de liquide

Info

Publication number
EP1007441A1
EP1007441A1 EP98907035A EP98907035A EP1007441A1 EP 1007441 A1 EP1007441 A1 EP 1007441A1 EP 98907035 A EP98907035 A EP 98907035A EP 98907035 A EP98907035 A EP 98907035A EP 1007441 A1 EP1007441 A1 EP 1007441A1
Authority
EP
European Patent Office
Prior art keywords
passage
insert
die
gas
container
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP98907035A
Other languages
German (de)
English (en)
Inventor
Karl Forest Works MONDSZEIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amcor Packaging UK Ltd
Original Assignee
Lawson Mardon Packaging UK Ltd
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
Application filed by Lawson Mardon Packaging UK Ltd filed Critical Lawson Mardon Packaging UK Ltd
Publication of EP1007441A1 publication Critical patent/EP1007441A1/fr
Ceased legal-status Critical Current

Links

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

  • the present invention relates to a foaming insert for containing a gas inside a pressurised container of liquid, such that when the container is opened, the gas is jetted from the insert to cause foaming of the liquid.
  • Such inserts are useful, in particular, for beverages containing dissolved gas and especially for beer, to form a head on the beer.
  • GB-A-2280887 discloses an insert, which floats on the liquid in the pressurised container with a closed jetting orifice immersed in the liquid and a closed charging orifice in the headspace above the liquid.
  • the orifices are closed by one-way valves.
  • the charging orifice valve opens when external pressure exceeds the internal pressure, so that gas from the headspace can enter the insert from the pressurised container.
  • the valve closes when equilibrium between the insert and the headspace is reached.
  • the jetting orifice valve opens when the internal pressure exceeds the external pressure, so that this valve remains closed during charging.
  • pressure is released, so that this valve is caused to open to jet gas into the liquid.
  • the insert comprises two moulded plastics shells, which snap fit together, each shell having a central aperture. Each aperture receives an elastomeric, duck-bill type valve, fitted into the aperture and defining the respective orifices.
  • the insert is simple to make, except for the need to provide and fit the duck-bill valves. This adds substantially to the cost and there is also a risk of the valves becoming detached, or failing to operate properly.
  • the present invention overcomes this problem by avoiding the necessity for valves to be provided.
  • an insert having a body defining a chamber for containing gas and usable in a pressurised liquid container, such that when the container is opened the gas escapes from the insert to cause foaming of the liquid, the insert comprising a gas inlet passage to allow gas to enter the insert from a headspace in the container and a gas outlet passage to allow gas to be jetted from the insert into the liquid in the container, the inlet and outlet passages being provided in respective wall formations, a gap being defined between the formations and providing communication between the chamber and both the inlet and the outlet passages, whereby in use, lower viscosity gas from the headspace enters the gap and hence the chamber through the inlet passage in preference to higher viscosity liquid entering the outlet passage, and wherein the inlet passage provides greater resistance to passage of gas then the outlet passage, so that, on release of the pressure in the container, gas is preferentially jetted through the outlet passage.
  • the insert is preferably designed to float on the liquid in a container, but it may be provided with projections, which engage the sides of the container, to secure the insert in position.
  • Fig 1 shows a cross-sectional view of an assembled insert according to the invention.
  • Fig 2 shows a cross-sectional view of a container containing a liquid and the insert of Fig 1.
  • the insert comprises an upper moulding 10 and a lower moulding 30, each roughly of hemispherical form, although they may be elongate.
  • Each one-piece moulding 10,30 is injection moulded from plastics, such as polypropylene.
  • the peripheral edge of the upper moulding 10 has a shaped, peripheral flange 13 and mis snap fits into a corresponding peripheral recess 33 formed in the edge of the lower moulding 30, so as to form a generally spherical housing with a flattened top 40 and flattened bottom 41.
  • Alternative means of connection e.g. gluing or heat bonding of the mouldings 10,30 may, however, be used.
  • the mouldings 10,30 form a chamber 50 for containing a gas.
  • the upper moulding 10 has a central, generally cylindrical tube 14 extending axially from the top 40 of the moulding 10 into the chamber 50.
  • the tube 14 is slightly frustoconical, with its wall converging towards the interior of the housing.
  • the tube 14 terminates in an end portion 15 having an end wall 15a.
  • the end wall has a flat surface 12 external of the tube 14.
  • the end wall has an axial, elongate, inlet passage 16 extending therethrough.
  • the lower moulding 30 has an external recess 31 in the bottom 41, the end of the recess being defined by a generally annular wall 36 projecting into the recess 31 and closed by an end wall 38. this forms a cup-shaped formation 34 in the interior of the chamber 50.
  • the cup- shaped formation 34 conforms to and receives the end portion 15 of the tube 14 of the upper moulding 10.
  • the bottom surface 35 of the cup- shaped formation 34 is located adjacent to, but spaced from, the end surface 12 of the tube.
  • the bottom wall 38 has an outlet passage 37 extending d rough it and axially aligned with the inlet passage 16 in the end wall 15a of the tube 14.
  • the outlet passage 37 is substantially shorter than the inlet passage 16.
  • a thin gap 42 is defined between the peripheral exterior of the end portion 15 of the tube and the peripheral interior of the cup-shaped formation 34.
  • the gap communicates the chamber 50 with the inlet passages 16,37.
  • the end portion 15 of me tube has a more pronounced taper than the rest of the tube and the interior peripheral surface of the annular wall 36 is correspondingly frustoconical, so that the gap 42 converges on the space 43 between the two passages 16,37.
  • the inlet passage 16 and the outlet passage 37 are 3mm in diameter.
  • the narrow gap 42 is about 0.5mm in depth.
  • the inlet passage 16 is at least twice the length of the outlet passage 37, the length of the outlet passage preferably between less than 1mm.
  • the inlet and outlet passages (16,37) may be otherwise differently formed to provide greater resistance to gas passage through the inlet passage (16).
  • the insert is designed to float on liquid and is self-righting due to its shape and because the lower moulding 30 is made heavier than the upper moulding 10. It is envisaged mat the inlet and outlet passages 16,37 need not be located on the axis of me insert, but may be offset from the axis.
  • the insert is inserted in a container of liquid, such as a can of beer, prior to sealing and pressurising the container.
  • a container of liquid such as a can of beer
  • Such a sealed container 60 is shown in Fig 2, with the insert 100 floating on the liquid
  • the inlet passage 16 is open, via the tube 14, to me headspace 62, whereas die outiet passage 37 is open to and immersed in the liquid 61.
  • the gas in me inlet passage 16 opposes the liquid adjacent die outlet passage 37 and primarily, gas enters the chamber 50 dirough me gap 42, until equalisation of pressure between the chamber 50 and me interior of the container is achieved.
  • the gas preferentially enters me chamber over the liquid, due to its lower viscosity, the resistance to entry of liquid being greater.
  • the power of the jet is increased by die convergent configuration of the gap 42, which produces a venturi effect, and die side wall 44 of the space 43 between me passages 16,37.
  • the insert has only two parts, which can be simply connected together, so that assembly is extremely simple. Furthermore, the insert has no valves, which may become detached, or fail to operate properly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

L'invention concerne un insert comportant une chambre (50) destinée à contenir du gaz. Cet insert est situé à l'intérieur d'un contenant (60) de liquide pressurisé, de manière que lorsque ledit contenant (60) est ouvert, le gaz s'échappe de l'insert en vue d'entraîner le moussage du liquide (61). L'insert est doté d'un orifice d'entrée (16) du gaz, communiquant avec une marge de remplissage (62), et un orifice de sortie (37) communiquant avec le liquide. Les orifices sont formés dans des parties adjacentes (15, 38). L'orifice d'entrée (16) communique avec l'orifice de sortie (37) et la chambre (50) par l'intermédiaire d'un passage fin (42) situé entre les parties adjacentes. Lors de l'utilisation de ce dispositif, le gaz provenant du contenant de liquide (60) pénètre dans la chambre (50) par l'intermédiaire de l'orifice d'entrée (16) et du passage (33, 42) et ce n'est pas le liquide plus visqueux qui pénètre par l'orifice de sortie (37). Sous l'effet du relâchement de la pression dans le contenant de liquide (60), le gaz est expulsé par l'intermédiaire de l'orifice de sortie (37) dans le liquide (61), plutôt que de sortir par l'orifice d'entrée (16), et ce, grâce à la conception des orifices qui assure une plus grande résistance dans l'orifice d'entrée (16). L'insert ne comporte pas de clapet.
EP98907035A 1997-02-27 1998-02-24 Insert de moussage pour contenant de liquide Ceased EP1007441A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9704132 1997-02-27
GB9704132A GB2322614A (en) 1997-02-27 1997-02-27 Foam-Producing Insert
PCT/GB1998/000572 WO1998038111A1 (fr) 1997-02-27 1998-02-24 Insert de moussage pour contenant de liquide

Publications (1)

Publication Number Publication Date
EP1007441A1 true EP1007441A1 (fr) 2000-06-14

Family

ID=10808442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98907035A Ceased EP1007441A1 (fr) 1997-02-27 1998-02-24 Insert de moussage pour contenant de liquide

Country Status (6)

Country Link
EP (1) EP1007441A1 (fr)
JP (1) JP2000512958A (fr)
CN (1) CN1258258A (fr)
AU (1) AU6302298A (fr)
GB (1) GB2322614A (fr)
WO (1) WO1998038111A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055614A1 (fr) * 1999-05-18 2000-11-29 Whitbread Plc Récipient à boisson
US7228789B1 (en) 1999-05-18 2007-06-12 Whitbread Plc Beverage container
GB0324772D0 (en) * 2003-10-24 2003-11-26 Farm Produce Marketing Ltd Floating insert
US20150118348A1 (en) 2013-10-28 2015-04-30 Bryce Bunkers Carbonated beverage nucleation accessory
JP6847532B2 (ja) * 2017-07-31 2021-03-24 株式会社吉野工業所 発泡用ウィジェット
JP6932445B2 (ja) * 2017-07-31 2021-09-08 株式会社吉野工業所 発泡用ウィジェット

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0712368B1 (fr) * 1993-08-12 1997-03-12 Whitbread Plc Piece d'insertion pour un recipient a boisson gazeuse
ATE160549T1 (de) * 1993-08-12 1997-12-15 Whitbread & Co Ltd Behälter für kohlensäurehaltige getränke
WO1996036545A1 (fr) * 1995-05-19 1996-11-21 Scottish & Newcastle Plc Dispositif pour faire mousser une boisson
GB2305159A (en) * 1995-09-14 1997-04-02 Ryford Ltd A floating device for generating froth, a container for the device, and a method of filling the container

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9838111A1 *

Also Published As

Publication number Publication date
GB2322614A (en) 1998-09-02
JP2000512958A (ja) 2000-10-03
WO1998038111A1 (fr) 1998-09-03
AU6302298A (en) 1998-09-18
CN1258258A (zh) 2000-06-28
GB9704132D0 (en) 1997-04-16

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