EP0285761A1 - Ausgabedruck bildende Mittel für Einwegbehälter - Google Patents

Ausgabedruck bildende Mittel für Einwegbehälter Download PDF

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Publication number
EP0285761A1
EP0285761A1 EP88101702A EP88101702A EP0285761A1 EP 0285761 A1 EP0285761 A1 EP 0285761A1 EP 88101702 A EP88101702 A EP 88101702A EP 88101702 A EP88101702 A EP 88101702A EP 0285761 A1 EP0285761 A1 EP 0285761A1
Authority
EP
European Patent Office
Prior art keywords
compartment
container
generating
compartments
pressure
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.)
Withdrawn
Application number
EP88101702A
Other languages
English (en)
French (fr)
Inventor
Jan L. Dorfman
Larry M. Dugan
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.)
Molson Coors Beverage Co
Original Assignee
Adolph Coors Co
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 Adolph Coors Co filed Critical Adolph Coors Co
Publication of EP0285761A1 publication Critical patent/EP0285761A1/de
Withdrawn legal-status Critical Current

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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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
    • B65D83/62—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like
    • B65D83/625—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like the propellant being generated by a chemical or electrochemical reaction

Definitions

  • This invention relates generally to a self-­generating pressure applying means, such as an expandable pouch which is adapted to be positioned in a container having a quantity of material contained therein so as to provide pressure on the material so that it may be readily dispensed from the container and in particular to a self-generating pressure applying means which is particularly suited for dispensing a fluid from a disposable container.
  • a self-­generating pressure applying means such as an expandable pouch which is adapted to be positioned in a container having a quantity of material contained therein so as to provide pressure on the material so that it may be readily dispensed from the container and in particular to a self-generating pressure applying means which is particularly suited for dispensing a fluid from a disposable container.
  • This invention provides a new, improved self-generating pressure applying means, such as an expandable pouch means, which is particularly designed and constructed so that it cooperates with the container means in which it is contained to ensure that substantially all of the material contained within the container is dispensed therefrom and maintains the pressure within the container means within a desired range of pressure during the dispensing operation.
  • the expandable pouch means of this invention is particularly useful wherever it is undesirable to add additional CO2 to the material in the container and where it is desirable to maintain substantially constant pressure on the material in the container during the entire dispensing operation.
  • the self-generating pressure applying means comprises an expandable pouch means comprising two relatively flat sheets of a gas and liquid impermeable plastic material in superposed relationship and having a octagonal shape having a length and a width and with the edge portions thereof joined by permanent sealing means.
  • the expandable pouch means is located within the container means so that as the expandable pouch means expands, as described below, it applies pressure to the material in the container means which in the preferred embodiment is a liquid, such as a beverage such as beer.
  • the expandable pouch means is divided into a plurality of compartments by lengthwise extending strips of semipermanent, peelable sealing means.
  • the expandable pouch means is inserted into the container means so that the lengthwise extending strips are, as much as possible, generally parallel to the longitudinal axis of the container means and will move more closely to such relationship as liquid is dispensed from the container means.
  • Two compartments of a gas generating system are contained in one relatively large compartment in the expandable pouch means and each of the other compartments thereof contains a supply of one of the two components. When the two components are exposed in the one compartment, they react to start generating gas to create a pressure in the one compartment so that the portions of the superposed flat sheets forming the one compartment are forced apart.
  • the one compartment continues to expand and as it expands, it applies a force on the strip of semipermanent, peelable sealing means between the one compartment and the next adjacent other compartment until such strip is ruptured.
  • the one component of the gas generating system in the next adjacent other compartment reacts with the components in the one compartment to continue the generation of gas in the combined one compartment and next adjacent other compartment.
  • the expansion of the expandable pouch means continues until substantially all of the fluid has been dispensed from the container means. As successive other compartments are expanded, the expanded portion of the expandable pouch means will take a shape generally corresponding to the shape of the container means. Puncture means (not described in this application) are then actuated to let the gas pressure escape from the expandable pouch means and the container means so that they may be safely placed in the trash.
  • An expandable pouch means 2 of the presently preferred embodiment is illustrated in Figs. 1 - 3 and comprises two relatively flat sheets 4 and 6 of a flexible plastic material in superposed relationship and made from a gas and liquid impermeable material such as a composite material of an outside layer of a polyester with an inside coating of PVDC, a layer of polyethylene and a layer of an ionomer resin, such as that marketed by Dupont under the trade designation SURLYN®.
  • Each of the flat sheets 4 and 6 is octagonal in shape having a length greater than its width and with peripheral edge portions 8 and 10 permanently joined together by a permanent sealing means 12 formed by heat sealing at a temperature of about 300°F. for 0.5 second.
  • the expandable pouch 2 is formed into a first compartment 14 and a plurality of other compartments 16 by a plurality of lengthwise extending strips 18 which join together opposed portions of the flat sheets 4 and 6 using a semipermanent peelable sealing means 20 formed by heat sealing at a temperature of about 250°F. for 0.5 second. If the flat sheets 4 and 6 are formed from different plastic materials, the temperature and time would be adjusted as required to obtain the desired type of seal. Also, if desirable, a suitable adhesive could be used to obtain the desired results.
  • the normal operation of an expandable pouch means 2 uses some delaying system so that the chemical reaction can be started and still allow for sufficient time for expandable pouch means 2 to be inserted into the container means and suitable sealing and dispensing means applied to the container means.
  • the delaying system for this invention is illustrated in Fig. 1 wherein the first compartment is sub-divided to three sub-compartments 22, 24 and 26.
  • the sub-­compartment 22 is formed by a lengthwise extending strip 18, as described above, extending parallel to the next adjacent permanent lengthwise extending sealed edge portions 8 and 10.
  • the sub-compartments 24 and 26 are formed by a lengthwise extending strip 18, as described above, extending parallel to and spaced inwardly from the strip 18 forming sub-­compartment 22.
  • the lower portion 28 of the strip 18 forming the sub-compartments 24 and 26 has a reduced width for a purpose described below.
  • a quantity of one component 30 of a two component gas generating system such as a 50% citric acid solution, is contained in the sub-compartment 22.
  • a water solution 34 of sodium bicarbonate is contained in the sub-compartments 26.
  • the outer compartments 16 each contain a quantity of the one component 30.
  • a force is applied to the sub-­compartment 22 to rupture the strip 18 so that the citric acid solution 24 flows into sub-compartment 24 to contact the other component, comprising the sodium carbonate tablet 32, and begins to react therewith to generate carbon dioxide gas.
  • This reaction with the tablet 32 proceeds at a rate to provide the above-­described delaying system to allow the expandable pouch means 2 to be inserted into the container means and suitable sealing and dispensing means applied to the container means.
  • the generation of the carbon dioxide gas forms a pressurized force forcing the strip 18 between the sub-compartment 24 and the sub-­compartment 26 to rupture at the weakened reduced width 28 to combine the sub-compartments 24 and 26.
  • FIG. 4 Another embodiment for the provision of the citric acid solution in the first compartment 14 is illustrated in Fig. 4 and is particularly useful when the fluid in the container means is a carbonated beverage, such as beer.
  • a substantially rigid container 40 which in the preferred embodiment is plastic, has a closed end 42 and an open end 44.
  • the container 40 is illustrated as being a tube but it is to be understood that it can be of any desired geometrical configuration.
  • a barb 46 is secured to the inner surface 48 of the container 40 with its pointed end 50 facing and relatively close to the open end 44.
  • a quantity of the citric acid solution 24 is placed in the container 40 and the open end 44 is sealed by a flexible membrane 52.
  • the strips 18 forming the sub-compartments 22, 24 and 26 are not used in this modification so that the first compartment 14 is one unitary compartment.
  • the filled container 40 is contained in the first compartment 14 with the water solution 34 of sodium bicarbonate.
  • the pressures generated by the carbonated beverage in the container means will exert a pressure on the flexible membrane 52 moving it into contact with the pointed end 50 to rupture the flexible membrane 52 and permit the citric acid solution 24 to flow into the water solution 34 of sodium bicarbonate in first compartment 14 to start the carbon dioxide gas generating system.
  • the location of the expandable pouch means 2 in a container means 60 is illustrated in Figs. 5 - 7.
  • the container means 60 is supported in the upright position for shipping and commercial storage by a support member 62.
  • the expandable pouch means 2 has a length substantially greater than the longitudinal extent of the container means 60 and a width substantially greater than the diameter of the container means 60. Therefore, in order to insert the expandable pouch means 2 through an opening 64 in the container means 60, it is necessary to apply a force in a widthwise direction to compact the expandable pouch means 2 in that direction so that its cross-­sectional configuration is less than the cross-­sectional configuration of the opening 64.
  • the expandable pouch means 2 As the expandable pouch means 2 is inserted into the container means 60, it is necessary to apply a force in the lengthwise direction to push the expandable pouch means 2 into the container means 60. This results in a crumpling of the expandable pouch means 2 in the lengthwise direction. Since the material in the expandable pouch means 2 has little tendency to resile, it will remain crumpled while a dispensing means 66 for dispensing portions of the material in the container means 60 is assembled in the opening 64.
  • the fluid 68 such as a carbonated beverage such as beer, is in the container means 60 prior to the insertion of the expandable pouch means 2. If desired, the expandable pouch means 2 can be inserted into the container means 60 prior to the filling of it with the fluid.
  • the fluid level 70 is slightly below the dispensing means 66.
  • the strip 18 forming sub-compartment 22 is ruptured prior to the insertion of the expandable pouch means 2 into the container means 60 so that the gas generating system is in operation, as described above, and the first compartment 14 has been at least partially expanded in the illustration in Fig. 5.
  • the container means 60 is illustrated in the fluid dispensable position in Figs. 6 and 7.
  • Another support member 72 has been pre­viously secured to the container means 60.
  • the support member 62 and the support member 72 have planar surfaces 74 and 76 for supporting the container means 60 on a generally horizontal surface, such as a shelf of a home refrigerator.
  • the planar surfaces 74 and 76 also function to maintain the container means 60 in such fluid dispensable position.
  • the pressure in the container means provided by the expandable pouch means would permit dispensing in other positions, some of which may require different types of dispensing means.
  • Fig. 6 more than half of the fluid has been dispensed from the container means 60.
  • the first compartment 14 and several of the next adjacent other compartments 16 have been expanded, as described above, to form a combined compartment which is located adjacent to the upper longitudinally extending portion of the container means 60.
  • the expandable pouch means 2 is substantially fully expanded and is substantially completely in contact with the inner surface of the container means 60 except for the portion defining the opening 64.
  • a pressure relieving device (not shown) in the dispensing means 66 is actuated and the carbon dioxide gas in the expanded pouch means 2 is removed through the dispensing means 46 so that the container means 60 and the expandable pouch means 2 are substantially at atmospheric pressure and the container means 60 can be safely placed in the trash.
  • the strips 18 are generally parallel with the longitudinal axis of container means 60.
  • the relative length of the expandable pouch means 2 causes it to be crumpled as it is inserted into the container means 60.
  • the strips 18 still extend generally in the same direction as the longitudinal axis of the con­tainer means 60.
  • the expanded portion of the expandable pouch means 2 gradually moves into a position wherein its longitudinal axis is parallel to the longitudinal axis of the container means 60, as illustrated in Fig. 6.
  • the longitudinal axes of the expandable pouch means 2 and the container means 60 will substantially coincide.
  • the container means 60 comprises a blown hollow integral plastic container means made of one piece of integrally molded plastic material, such as polyethylene terephthalate (PET), and having a hemispherical top portion 78, an annular cylindrical central portion 80, a hemi­spherical bottom portion 82 and a neck portion 84 defining the opening 64.
  • PET polyethylene terephthalate
  • the container means 60 is large enough to hold 288 fluid ounces of a beverage.
  • the expandable pouch means 2 may be of any size and shape so as to be commensurate with the size and shape of the container means 60 with which it is to be used. Also, the expandable pouch means 2 may be used to dispense any kind of material from the container means as is customary in this art. However, in the preferred embodiment of the invention, the ex­pandable pouch means 2 is designed for applying pressure to a quantity of beer equal to 288 fluid ounces or 2.25 gallons in a container means 60.
  • the expandable pouch means 2 has a overall length of about 17 inches and an overall width of about 15.5 inches and has nine compartments formed therein.
  • the following table lists the various parameters involved in dispensing a beverage from a container wherein the container has an overflow volume of about 10.2 liters and contains 8.52 liters of beer at a temperature of about 38°F. and at a pressure equal to that at an altitude of about 5,000 feet.
  • the head space volume is listed as 1.220799 liters. This is the volume to which the first com­partment 14 will expand to before any beer is dispens­ed from the container.
  • the first compartment will ex­pand to a volume of 1.565575 liters before the peel­able seam strip 18 between it and the next adjacent other compartment is ruptured.
  • the first compartment 14 or sub-compartment 26 will contain 100 grams of sodium bicarbonate, which is more than the stoichio­metric amount necessary to react with the citric acid to produce the required pressurizing gas, combined with 170 ml of water and any other desired additional ingredients.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Devices For Dispensing Beverages (AREA)
EP88101702A 1987-04-06 1988-02-05 Ausgabedruck bildende Mittel für Einwegbehälter Withdrawn EP0285761A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3490087A 1987-04-06 1987-04-06
US34900 1987-04-06

Publications (1)

Publication Number Publication Date
EP0285761A1 true EP0285761A1 (de) 1988-10-12

Family

ID=21879323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101702A Withdrawn EP0285761A1 (de) 1987-04-06 1988-02-05 Ausgabedruck bildende Mittel für Einwegbehälter

Country Status (5)

Country Link
EP (1) EP0285761A1 (de)
JP (1) JP2581729B2 (de)
AU (1) AU616877B2 (de)
CA (1) CA1333169C (de)
NZ (1) NZ223131A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0441824A4 (en) * 1988-11-03 1991-10-16 Adolph Coors Company Improvements in generating pressures for disposable containers
EP2258629A1 (de) * 2009-06-05 2010-12-08 Eurokeg B.V. Behälter für ein unter Druck gesetztes Getränk, insbesondere Bier, und Verfahren zur Befüllen eines Behälters mit einem unter Druck gesetzten Getränk
US10166561B2 (en) 2015-06-12 2019-01-01 Makinex Ip Pty Ltd Fluid reservoir and dispensing device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2887158B2 (ja) * 1989-06-14 1999-04-26 富士ゼロックス株式会社 画像処理装置
AU631614B2 (en) * 1990-03-15 1992-12-03 Joy Research, Incorporated Regulated pressurized dispenser and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827595A (en) * 1970-07-27 1974-08-06 Huck Finn Inc Beer keg
AU480035B2 (en) * 1969-12-04 1974-08-22 Enviro-Spray Systems Inc. Improvements in pressurized containers
US4402402A (en) * 1981-10-14 1983-09-06 Pike Brian R Barrier seal multiple-compartment package
EP0033377B1 (de) * 1979-12-19 1986-02-26 Enviro-Spray Systems, Inc. Behälter mit Ausgabedruck bildenden Mitteln

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU480035B2 (en) * 1969-12-04 1974-08-22 Enviro-Spray Systems Inc. Improvements in pressurized containers
US3827595A (en) * 1970-07-27 1974-08-06 Huck Finn Inc Beer keg
EP0033377B1 (de) * 1979-12-19 1986-02-26 Enviro-Spray Systems, Inc. Behälter mit Ausgabedruck bildenden Mitteln
US4402402A (en) * 1981-10-14 1983-09-06 Pike Brian R Barrier seal multiple-compartment package

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0441824A4 (en) * 1988-11-03 1991-10-16 Adolph Coors Company Improvements in generating pressures for disposable containers
EP2258629A1 (de) * 2009-06-05 2010-12-08 Eurokeg B.V. Behälter für ein unter Druck gesetztes Getränk, insbesondere Bier, und Verfahren zur Befüllen eines Behälters mit einem unter Druck gesetzten Getränk
WO2010139800A1 (en) * 2009-06-05 2010-12-09 Eurokeg B.V. Container for a pressurized beverage, in particular beer, and method of filling a container with a pressurized beverage
US10005604B2 (en) 2009-06-05 2018-06-26 Eurokeg B.V. Container for a pressurized beverage, in particular beer, and method of filling a container with a pressurized beverage
US10166561B2 (en) 2015-06-12 2019-01-01 Makinex Ip Pty Ltd Fluid reservoir and dispensing device

Also Published As

Publication number Publication date
AU1013788A (en) 1988-10-13
CA1333169C (en) 1994-11-22
JP2581729B2 (ja) 1997-02-12
JPS63258796A (ja) 1988-10-26
AU616877B2 (en) 1991-11-14
NZ223131A (en) 1990-04-26

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