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WO2004103855A1 - Recipient pour materiau liquide ou semi-liquide son procede de fabrication et d'utilisation - Google Patents

Recipient pour materiau liquide ou semi-liquide son procede de fabrication et d'utilisation Download PDF

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Publication number
WO2004103855A1
WO2004103855A1 PCT/DK2004/000357 DK2004000357W WO2004103855A1 WO 2004103855 A1 WO2004103855 A1 WO 2004103855A1 DK 2004000357 W DK2004000357 W DK 2004000357W WO 2004103855 A1 WO2004103855 A1 WO 2004103855A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
section
connection
sections
inner bag
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
PCT/DK2004/000357
Other languages
English (en)
Inventor
Erik Langelund
Peter William Nash
Lasse Kjeldsen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2004103855A1 publication Critical patent/WO2004103855A1/fr
Anticipated expiration legal-status Critical
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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/771—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a flexible bag or a deformable membrane or diaphragm
    • 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
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B65D11/04—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure

Definitions

  • the invention relates to a container for a liquid or semi-liquid material as specified in the preamble of claim 1, a method for manufacturing a container and use hereof.
  • US patent no. US-A 4,909,416 An example of a container with a user activated pump mechanism is illustrated in US patent no. US-A 4,909,416.
  • the container comprises an internal bag that divides the container into a first and second space.
  • a first valve connects the first space with the exterior, and a second valve connecting the second space with the exterior.
  • the first space comprises the content of the container and is dispended through the first valve when the user presses on the side of the container.
  • the first valve does not allow air to enter the first space as the user relaxes the pressure on the side.
  • the second valve allows air to enter the second space but not subsequently to escape.
  • the pressure in the second space will increase as the content is dispensed from the first space. Consequently, the air pressure in the second space will apply more force to the one side of the bag and thus successively diminish the size of the first space. Hereby is achieved a more efficient emptying of the content in the container.
  • a problem with the previously suggested containers including pump mechanisms has been their complex construction with a number of separate parts and connections. In order to make the containers leak-tight the manufacturing has required high precision manufacturing machines to each of the parts. Further, the manufacture of the containers has required a number of working persons in order to put the containers together.
  • An object of the invention is to establish a container with a pump mechanism which is simple in its construction and consequently is price efficient to manufacture.
  • the invention relates to a container comprising a cover member and a bag where said cover member comprises at least two tubular sections and said inner bag has a connection to one of said sections.
  • said cover member comprises at least two tubular sections and said inner bag has a connection to one of said sections.
  • tubular sections and said inner bag are made in a plastic material e.g. a moldable plastic material.
  • a plastic material e.g. a moldable plastic material.
  • said tubular sections comprise a material thickness larger than that of the inner bag e.g. more than 2 times such as between 5 and 10 and preferably circa 6 times.
  • the preferred ratios ensure that the lower and upper tubular sections are thick enough and have the necessary structural strength in protecting the liquid or semi-liquid material without losing the equally necessary flexibility.
  • the thickness of the inner bag ensures that the chambers are separated and kept separate regardless of the pressure applied to the container and thus the bag. Further, the thickness of the inner bag ensures that the connection is durable regardless of the use.
  • connection between said section and said inner bag is established on the inner side of the section e.g. close to the edge of the section.
  • the connection to the inner surface is advantageous as the further connection between the sections may be established without interfering with the connection to the inner surface.
  • said inner bag and one of said section comprise a connection being a continuation of the inner bag from the section e.g. a straight or radial continuation with a diminishing of material thickness and/or a tubular section and said inner bag are made in the same molding process e.g. as one following the other in an injection mould machine.
  • a connection being a continuation of the inner bag from the section e.g. a straight or radial continuation with a diminishing of material thickness and/or a tubular section and said inner bag are made in the same molding process e.g. as one following the other in an injection mould machine.
  • connection between said section and said inner bag is a glue connection.
  • connection between said section and said inner bag is a plastic melded connection.
  • said lower and upper tubular section are connected to each other in a section connection area with one section partly covers the other section.
  • said section connection area includes corresponding indentations in the surface of the sections.
  • connection between said sections is a plastic melded connection established by applying heat to a section connection area of said sections, a glue connection established by applying glue to surfaces in the area or a screw connection established between inner and outer threads, respectively, in the surface of the said sections.
  • a plastic melded connection established by applying heat to a section connection area of said sections, a glue connection established by applying glue to surfaces in the area or a screw connection established between inner and outer threads, respectively, in the surface of the said sections.
  • the first and/or the second valve comprise a dome shape with a flexible opening in part of the dome surface e.g. a dome slit.
  • the dome shape is advantageous as the valve will easily split wide open when a pressure on the inner side of the dome is present.
  • the opening is established by the two edges of the opening being forced away from each other as a mouth being opened. The edges of the opening will meet again when the pressure is removed as the dome will resume its normal and "relaxed" shape in which the valve is closed.
  • dome shape may be used in which the important feature of the valve is the ability to close when pressure is removed from one side of the valve.
  • the first valve comprises a shape corresponding at least partly to the inner surface of said dispensing member for the container.
  • the inner surface in controlling and restricting the movement of the valve and thus the characteristic of the valve e.g. the size of the valve opening.
  • shape will avoid that any material discharged material stays in between the dispensing member and the valve.
  • the first and/or the second valve are made in a flexible material such as plastic or rubber e.g. silicone rubber.
  • a flexible material such as plastic or rubber e.g. silicone rubber.
  • the choice of material is important in achieving a valve that opens easily at a lesser pressure and subsequently closes tightly.
  • Silicone rubber is especially advantageous due to its many favorable characteristics such as: High and low temperature stability, inertness (no taste or smell), translucent and easy to color, wide hardness range, chemical resistance, durability and sealing performance.
  • said first valve being positioned at the opening of the upper tubular section or at the opening of the said dispensing member for the container.
  • the positions of the valve ensure different functionalities e.g. in connection with tight closing, valve size, costs and the optimal discharge of material.
  • said at least two tubular sections define spaces of similar size being divided by said inner bag e.g. the same size.
  • said inner bag that uses the defined spaces in full when the bag is substantially filled or emptied.
  • said inner bag at distending comprises a shape corresponding at least partly to the inner surface of at least one of the tubular sections e.g. the upper tubular section including an opening and/or a valve.
  • at least one of said tubular sections comprises a folding pump section and a fixed holding structure for the container e.g. a folding pump section in a part of the lower tubular section.
  • the invention also relates to a method of manufacturing a container for a liquid or semi-liquid material, said method comprising the steps of:
  • the steps of holding a first tubular section deliver said inner bag in proximity of said section connection area e.g. from above or below the tubular section, establishing a connection between the tubular section and the inner bag, deliver a second tubular section in proximity of said section connection area e.g. from above or below the first tubular section, and establishing a connection between the tubular sections.
  • said steps is automated by using machinery such as injection mould machines, welding machines, robots and/or conveyors.
  • the container may preferably be used in connection with liquid or semi-liquid food material such as ketchup, mustard, tartare sauce, mayonnaise or salad dressing.
  • the container may also be used in connection other (non-food) areas in which it is preferred to empty the container to a higher extent or faster for a liquid or semi-liquid material such as cosmetics, toothpaste, glue or engine grease/oil sold in flexible containers.
  • fig. 1 shows an embodiment of a flexible container for a liquid or semi-liquid material according to the invention with an inner bag in a first position
  • fig. 2 shows the flexible container with the inner bag in a second position
  • fig. 3 shows an exploded view of a first preferred embodiment of the flexible container including enlarged views of different elements in the container
  • fig. 4 shows an exploded view of a second preferred embodiment of the flexible container including enlarged views of different elements in the container
  • fig. 5 shows the flexible container filled with liquid or semi-liquid material
  • fig. 6 shows the flexible container including liquid or semi-liquid material in different use situations
  • fig. 7 shows a further embodiment of the flexible container.
  • Fig. 1 shows an embodiment of a flexible container 1 according to the invention in an exploded view illustrating the different means of the container.
  • the container may hold a liquid or semi-liquid material (illustrated in fig. 5 and 6) with an inner bag 6 in which the inner bag 6 is illustrated a first position in which it is (initially) hanging freely inside the container.
  • the unified container comprises a cover 11 and a dispensing member 5 defining the outer surface of the flexible container.
  • the cover comprises a lower and upper tubular section 12a, 12b with enclosed areas 2, 3 for the upper and lower tubular section, respectively.
  • the two enclosed areas are linked and B ⁇ HM by a very flexible inner bag 6 in which the inner bag comprises a connection 4 to one of the tubular sections.
  • the inner bag connects to the tubular section on the inner surface of the section forming an unbroken line i.e. a liquid tight connection.
  • the inner bag 6 defines a first chamber above the bag and another below the bag in the container.
  • the first chamber is a chamber 9 for holding a liquid or semi-liquid material and the second chamber is an air chamber 10.
  • the inner bag may move inside the container restricted only by the connection 4 and the pressure from the two chambers 9, 10.
  • the two chambers 9, 10 comprise a first and second valve in order to control the pressure in the chambers.
  • the first valve is a valve 7 intended for allowing the discharge of liquid or semi- liquid material to the exterior from the chamber 9 when pressure is applied to the surface of the container.
  • the valve 7 further avoids that air is drawn into the chamber and replaces the discharged material.
  • the valve is positioned on top of the discharging opening la of the container 1 and held in place by the dispensing member 5 screwed onto the container.
  • the second valve is a valve 8 intended for taking air in from the exterior to the air chamber in order to remove any partial vacuum in the air chamber due to the discharging of material from the chamber 9. Further, the valve 8 ensures that the air is not forced out of the air chamber 10 when pressure is applied to the container but instead is transformed to a pressure on the lower side of the inner bag 6 and thus helps discharge the liquid or semi-liquid material to the exterior.
  • the dispensing member 5 includes an opening 5 a and a closing member 5b in which the opening 5 a and the valve 7 establish the intermediary part of the connection from the chamber 9 to the exterior when a pressure is applied to the container.
  • the liquid or semi-liquid material may in this situation freely be discharged from the chamber 9 to the exterior.
  • Fig. 2 shows the flexible container with the inner bag in a second position.
  • the position illustrates that air has been taken in from the exterior to the air chamber 10 whereby the inner bag is (finally) positioned next to the valve 7 after pressure has been applied to the container and subsequently removed.
  • Fig. 3 shows an exploded view of a first preferred embodiment of the flexible container 1 including enlarged views of different elements in the container.
  • the figure illustrates a preferred embodiment of the valves 7, 8 including enlarged views of the valves seen from above.
  • Each of the valves includes a rim that acts as a valve contact surface 13, 15.
  • the valve is in contact with the opening la at the top of the container and a hole (not illustrated) in the bottom of the container into the air chamber 10.
  • the rim surrounds a dome shaped part with a valve opening 14, 16 in the form of a slit.
  • the slit penetrates the dome material and starts and ends at some distance from the rim.
  • the opening stretches over the dome top from the start to the end as a straight line.
  • the opening may stretch differently over the dome e.g.
  • the figure illustrates how the inner bag 6 as an initially free element is prepared and ready to be connected either to the inner surface at edge of the lower or upper tubular section 12a, 12b, or to the rim of the lower or upper tabular section 12a, 12b.
  • the connection between the tubular section 12a, 12b and the inner bag 6 is in one embodiment a glue connection and in another a plastic melded connection.
  • the figure illustrates the lower and/or upper tubular section 12a, 12b as half parts in the outer cover 11 of the container 1 with a circular cross sectional shape.
  • the connection between the sections is obtained by one section 12b partly covering the other section 12a e.g. the sections comprising an outer and inner indentation, respectively, at the edges of the sections in which the two indentations 17, 20 correspond and connect seamlessly.
  • the tubular sections may comprise threads and the other section 12a may thus be screwed onto the first section 12b.
  • the manufacturing of the container comprises the steps of connecting the inner bag to one of the tubular sections in which the connecting involves lifting the inner bag to a position in proximity of the edge of the section. In this position is applied fastening means to the connection area 19 of the inner bag and to the section e.g. glue to establish the connection 4.
  • the fastening means may be heat that partly melts the connection area 19 and the corresponding area of the section and thus allows the two to meet and be firmly connected after removing the source of heat.
  • the other tubular section is brought in contact with the section including the inner bag e.g. by using corresponding indentations in the surface of the sections as mentioned above.
  • valves 7, 8 as well as the dispensing member 5 are applied to the container 1 in which the member is screwed on the thread 18 of the container, hereby keeping the valve 7 firmly in place.
  • the air valve 8 may be kept in place in the container by applying glue or heat to the contact surface 15 of the valve.
  • the manufacturing process may be performed as a number of automated steps e.g. as steps directly after the sections and the inner bag have left an injection mould machine.
  • Fig. 4 shows an exploded view of a second preferred embodiment of the flexible container including enlarged views of different elements in the container.
  • connection between the tubular section 12a, 12b and the inner bag is established in the same molding process e.g. as one following the other in the injection mould machine but preferably with different wall thicknesses.
  • the wall of the lower and/or upper tubular section 12a, 12b may comprise a thickness of circa 0.6 to 4 millimeters such as 1 millimeter.
  • the functionality of the inner bag 6 requires that the bag is very flexible e.g. in a material with a thickness of less than 0.3 millimeters such as between 10 and 200 my and preferably between 150 and 200 my. Consequently the ratio between the thicknesses is at least 2 and preferably in the range of 5 and 40 such as 10.
  • Fig. 5 shows a flexible container fully filled with liquid or semi-liquid material 21 in an initial situation i.e. before any material has been discharged.
  • the weight of the material 21 and the upright position of the container 1 results in an inner bag 6 being forced down in such a way that the size of the air chamber 10 is at a minimum.
  • Fig. 6 shows the flexible container of fig. 5 in different use situations in which the use situations illustrate the functionality of the flexible container.
  • the first figure illustrates the initial discharge of liquid or semi-liquid material from the container 1 by orientating the opening of the container downwards.
  • a user may squeeze at the center area of the container when the container is orientated and positioned as preferred.
  • the applied pressure to the container diminishes the size of the chambers 9, 10 for the liquid or semi-liquid material and air and ensures that the material is forced against the valve 7 for discharging liquid or semi-liquid material.
  • the pressure from the material forces the valve to open and the material may flow through to the exterior. When the applied pressure disappears will the pressure on the valve also disappear and the valve 7 closes.
  • the figure also illustrates how the valve 7 fills the space within the dispensing member 5 for the container 1, ensuring that the material is delivered at the opening of dispensing member.
  • the inner shape of the dispensing member may be such that it substantially corresponds to the shape of the valve 7 when it is open. Further, the valve 7 may be positioned at the opening of the dispensing member of the container e.g. on top of the opening or in the neck of the dispensing member.
  • the second figure illustrates how the discharged material is replaced by air drawn into the air chamber 10 through the air valve 8.
  • the valve opens due to the pressure difference between the normal exterior pressure and the partial vacuum in the air chamber and closes again when the difference has been leveled.
  • Fig. 7 shows a further embodiment of the flexible container 1 wherein at least one of said tubular sections 12a, 12b comprises a folding pump section 23 and a fixed holding structure for the container 22 e.g. a folding pump section 23 in a part of the lower tubular section 12a.
  • the enclosed area for the lower tubular section is squeezed by applying a downward force to the bottom of the lower tubular section
  • the figure further shows an embodiment in which the first valve 7 is positioned at the opening of the dispensing member 5.
  • the valve may for example be glued to the dispensing member 5 in order to hold it in place.
  • valves may be replaced with more complicated types of valves e.g. types that will be well-known by the skilled person.
  • the air valve may also be replaced by two or more valves and be placed anywhere in the container that allows access to the air chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)

Abstract

L'invention concerne un récipient (1) pour matériau liquide ou semi-liquide (21), qui comprend un couvercle (11), un élément de distribution (5) comportant une ouverture (5a) et relié à l'élément couvercle (11), lesdits éléments définissant la surface externe du récipient (1), et un sac interne (6) relié au couvercle dans une liaison (4) et définissant une séparation entre un premier (9) et un second espaces (10) à l'intérieur du récipient. De plus, un premier clapet (7) reliant le premier espace à l'extérieur, et un second clapet 8 placé dans le couvercle (11) reliant le second espace à l'extérieur. Le couvercle (11) est composé d'au moins deux sections tubulaires (12a, 12b) et ledit sac interne (6) est relié à l'une de ces sections. L'invention concerne enfin un procédé de fabrication d'un récipient conçu pour un matériau liquide ou semi-liquide ainsi que son utilisation.
PCT/DK2004/000357 2003-05-20 2004-05-19 Recipient pour materiau liquide ou semi-liquide son procede de fabrication et d'utilisation Ceased WO2004103855A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200300760 2003-05-20
DKPA200300760 2003-05-20

Publications (1)

Publication Number Publication Date
WO2004103855A1 true WO2004103855A1 (fr) 2004-12-02

Family

ID=33462051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2004/000357 Ceased WO2004103855A1 (fr) 2003-05-20 2004-05-19 Recipient pour materiau liquide ou semi-liquide son procede de fabrication et d'utilisation

Country Status (1)

Country Link
WO (1) WO2004103855A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2452155A (en) * 2007-08-20 2009-02-25 Melvyn Rosenberg-Nevo Bottle with a flow impeding device for dispensing of two phase liquids
DE102009057415A1 (de) * 2009-12-08 2011-06-09 Ali Vijdan Behälter für Lebensmittel
GB2604911A (en) * 2021-03-18 2022-09-21 Nicholas Jones Ford A dispenser

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2081244A1 (fr) * 1970-03-23 1971-12-03 Bouet Bernard
EP0330785A2 (fr) * 1988-03-04 1989-09-06 Robbins, Edward S., III Récipient avec vessie unitaire et couvercle distributeur associé
US4909416A (en) 1986-06-16 1990-03-20 Evezich Paul D Device for containing and dispensing flowable materials
US5033655A (en) * 1989-02-15 1991-07-23 Liquid Molding Systems Inc. Dispensing package for fluid products and the like
DE20117932U1 (de) * 2001-11-03 2003-03-13 Henkel KGaA, 40589 Düsseldorf Vorrichtung zur Aufnahme und Abgabe eines streichfähigen Materials
DE10234417A1 (de) * 2002-07-29 2004-02-12 Alfred Von Schuckmann Spender für pastöse bis fließfähige Massen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2081244A1 (fr) * 1970-03-23 1971-12-03 Bouet Bernard
US4909416A (en) 1986-06-16 1990-03-20 Evezich Paul D Device for containing and dispensing flowable materials
EP0330785A2 (fr) * 1988-03-04 1989-09-06 Robbins, Edward S., III Récipient avec vessie unitaire et couvercle distributeur associé
US5033655A (en) * 1989-02-15 1991-07-23 Liquid Molding Systems Inc. Dispensing package for fluid products and the like
DE20117932U1 (de) * 2001-11-03 2003-03-13 Henkel KGaA, 40589 Düsseldorf Vorrichtung zur Aufnahme und Abgabe eines streichfähigen Materials
DE10234417A1 (de) * 2002-07-29 2004-02-12 Alfred Von Schuckmann Spender für pastöse bis fließfähige Massen
WO2004013016A1 (fr) * 2002-07-29 2004-02-12 Alfred Von Schuckmann Distributeur pour masse pateuse a coulante

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2452155A (en) * 2007-08-20 2009-02-25 Melvyn Rosenberg-Nevo Bottle with a flow impeding device for dispensing of two phase liquids
DE102009057415A1 (de) * 2009-12-08 2011-06-09 Ali Vijdan Behälter für Lebensmittel
DE102009057415B4 (de) * 2009-12-08 2013-10-10 Ali Vijdan Behälter für Lebensmittel
GB2604911A (en) * 2021-03-18 2022-09-21 Nicholas Jones Ford A dispenser
GB2604911B (en) * 2021-03-18 2024-11-27 Nicholas Jones Ford A dispenser

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