WO2020176935A1 - Vanne pour distributeur, sachet de distribution et procédé de formation associé - Google Patents

Vanne pour distributeur, sachet de distribution et procédé de formation associé Download PDF

Info

Publication number
WO2020176935A1
WO2020176935A1 PCT/AU2020/050195 AU2020050195W WO2020176935A1 WO 2020176935 A1 WO2020176935 A1 WO 2020176935A1 AU 2020050195 W AU2020050195 W AU 2020050195W WO 2020176935 A1 WO2020176935 A1 WO 2020176935A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
passage
spout
channel
walls
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/AU2020/050195
Other languages
English (en)
Inventor
Peter N. Thomsen
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
Priority claimed from AU2019900686A external-priority patent/AU2019900686A0/en
Application filed by Individual filed Critical Individual
Publication of WO2020176935A1 publication Critical patent/WO2020176935A1/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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5866—Integral spouts
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/40—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for metering discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/348—Avoiding melting or weakening of the zone directly next to the joint area, e.g. by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8182—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects
    • B29C66/81821—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects of the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/851—Bag or container making machines
    • B29C66/8511—Bag making machines
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/28—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for expelling 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/20—Flexible squeeze tubes, e.g. for cosmetics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets

Definitions

  • the invention relates to a one-way valve for a dispenser, a dispensing pouch for containing a liquid having a normally closed valve that is openable to dispense a quantity of the liquid, and a method of forming such a valve and dispensing pouch.
  • Australian Patent No. 588655 discloses a dispenser pouch formed from a pair of superimposed panels that are heat-sealed together to define a liquid reservoir therein.
  • the dispenser pouch includes tapered-down neck at a lower end of the pouch that communicates with the reservoir to retain a pre-measured charge of the liquid therein.
  • Narrow overlying and unsealed panel portions at the termination of the neck form a normally closed valve that opens when a predetermined external pressure is applied to the pouch.
  • a problem with this dispenser pouch relates to operation of the valve, in particular, undesirable leakage through the valve and undesired closure of the valve in use that causes intermittent or interrupted dispensing problems.
  • a one-way valve for a dispenser including a reservoir and a spout in fluid communication with the reservoir, the spout leading to the normally closed valve, the normally closed valve including a pair of flat and adjacently arranged valve walls defining a normally closed rectangular and straight passage, wherein the valve and passage are openable in response to the application of a an external pressure at least one of toward or at the spout to dispense the quantity of the liquid and being re-closable in response to removal of such pressure, and wherein at least one of the valve walls is shaped so as to provide a reinforcement means intermediate the passage so as to substantially retain the width and shape of at least one of the valve walls proximate the reinforcement means.
  • an entry and exit of the passage of the valve are narrower in plan form view in comparisons to the width of the passage proximate to the reinforcement means.
  • valve walls are relatively flatter proximate the reinforcement means relative to the valve walls proximate entry and exit of the passage.
  • the reinforcement means is a channel arranged to transversely span the passage.
  • the channel is located about intermediate the entry and exit of the passage.
  • the base of the channel is located away from the opposing other of the panel portions.
  • the channel is narrower than the passage.
  • the spout includes opposing inner sides that converge toward one another in a direction toward the valve.
  • dispenser including a valve as defined in any one of the previous claims.
  • dispensing pouch for selectively dispensing a quantity of a liquid
  • the dispensing pouch including a reservoir portion and a spout portion in fluid communication with the reservoir portion, the spout portion leading to a normally closed valve including a pair of flat and adjacently arranged valve walls defining a normally closed rectangular and straight passage, wherein the valve and passage are openable in response to the application of a an external pressure at least one of toward or at the spout portion to dispense the quantity of the liquid and being re-closable in response to removal of such pressure, and wherein at least one of the valve walls is shaped so as to provide a reinforcement means intermediate the passage so as to substantially retain the width and shape of at least one of the valve walls proximate the reinforcement means.
  • the dispensing pouch is substantially formed from opposing panels that are heat sealed together apart for the panel walls.
  • a dispensing pouch for selectively dispending a quantity of a liquid, the dispensing pouch including a reservoir portion and a spout portion in fluid communication with the reservoir portion, the spout portion leading to a normally closed valve including a pair of flat and adjacently arranged valve walls defining a normally closed rectangular and straight passage, wherein the valve and passage are openable in response to the application of a an external pressure at least one of toward or at the spout portion to dispense the quantity of the liquid and being re-closable in response to removal of such pressure, and wherein at least one of the valve walls include a channel arranged transverse to the passage.
  • a method for forming a one-way valve for a dispensing pouch including the steps of: Providing a forming arrangement having a cold die and an opposing heated die having a heat insulting insert with a channel therein; Inserting two panels composite plastic material between the cold and hot dies; Applying heat and pressure to the heated die such that the two panels are substantially sealed about the periphery thereof so to form a reservoir and a spout leading to the valve, the heat insulting portion forming the valve with unattached opposing valve walls defining a substantially straight passage between a valve entry at the spout to a valve exit, with one of the valve walls having a cross channel formed by the channel of the heat insulting portion; Allowing the formed dispensing pouch to cool such that the valve entry and exit of the passage are slightly relax relative to the passage proximate the cross channel.
  • Figure l is a top view illustrating a dispensing pouch for dispensing of a liquid
  • Figure 2 is a detailed top view illustrating a spout portion and valve of the dispensing pouch
  • Figure 3 is a side view illustrating the pouch with a pressure applied to a reservoir thereof so as to curve or spoon the spout portion and seal the valve;
  • Figure 4 is a top view illustrating the upper and lower panels of the dispending pouch
  • Figure 5 is a perspective view illustrating a pressure being applied to the spout portion of the pouch. It is important, when dispensing product, to keep the nozzle/ spout area flat, so the product will pass through the canal without activating the nip points;
  • Figure 6 is a perspective view illustrating a heat sealing plate with a fitted insert having a milled cross section channel void
  • Figure 7 is a perspective view of a silicone profile for the opposing cold sealing die
  • Figure 8 is a side sectional view illustrating a forming assembly with the heat insulating die plate on top of the opposing cold sealing die; and [0030] Figure 9 to 12 show views illustrating a heat insulating die insert for fitting with the forming assembly;
  • Figure 13a is a top view illustrating a second example of the dispenser with a larger pouch and having an insert for promotion of flow;
  • Figure 13b is a side view illustrating the second example of the dispenser
  • Figure 14a is a bottom view illustrating the insert for the second example of the dispenser
  • Figure 14b is a side view illustrating the insert.
  • Figure 15 is a perspective view illustrating a plurality of the second example of the dispensers being formed in a mold with the inserts fitted thereto.
  • a dispenser 5 in the form of a dispensing pouch 10 for selectively dispending a quantity of a liquid 11.
  • the liquid is preferably a viscous liquid or liquid like substance such as, but not limited to, a gel, cream, food product or the like.
  • the range of viscosities may be in the range of about that of water, being 1 centipoise, to that of a highly viscous liquid in the range of 3,000 centipoises.
  • the dispensing pouch 10 includes a reservoir or reservoir portion 12 and a spout or spout portion 14 in fluid communication with the reservoir portion 12, the spout portion 14 leads to and terminating at a normally closed valve 16 including a pair of flat and adjacently arranged valve walls 18 defining a normally closed rectangular and straight passage 20.
  • the valve 16 and the passage 20 are openable in response to the application of an external pressure at least one of toward or at the spout portion 14 to dispense the quantity of the liquid and being re-closable in response to removal of such pressure.
  • At least one of the valve walls 18 is shaped so as to provide a reinforcement means 22 intermediate the passage 20.
  • the reinforcement means 22 is provided in the form of a cross channel 23 formed in one of the valve walls 18. The channel 23 being arranged transverse to and spanning across the passage 20.
  • the dispensing pouch 10 is formed from a pair of superimposed panels 24 that are sealably coupled together to define the reservoir portion 12, the spout portion 14 and the valve 16.
  • the superimposed panels 24 are preferably plastic and superimposed over each other during manufacture and heat-sealed together substantially about periphery edges 15 thereof.
  • An upper end 19 of the dispenser pouch 10 is preferably left open during initial stages of the packaging process to fill the pouch 11 with the liquid 11.
  • a suitable plastic for the superimposed panels 24 may be composite material including Polyethylene and Nylon. More specifically, in this example, the material of the superimposed panels 24 may be 80um Polyethylene, 30um Nylon and reverse printed 18um PET or PVdC + tie layers.
  • the reservoir portion 12 may be larger and relatively more voluminous in comparison to the spout portion 14.
  • the reservoir portion 12 may have any suitable shape, but in this example is generally rectangular in plan form view having an internal end 26 and internal opposing sides 28.
  • the reservoir portion 12 becomes rounded between the internal opposing sides 28 when filled with the liquid.
  • the external perimeter of the reservoir portion 12 may take any suitable shape, but may generally follow that of the internal shape, in this case, being generally rectangular.
  • the reservoir portion 12 may be deep on one side such as is the case of a deep drawn arrangement.
  • the spout portion 14 includes a spout entry 30 that communicates with the reservoir portion 12, a spout exit 32 that communicates with the passage 20 of the valve 16 and internal inner opposing side walls 31 that taper inwardly and converge from the spout entry 30 to the spout exit 32.
  • the spout entry 30 may step inwardly and be relatively narrower in comparison to the internal opposing sides 28 of the reservoir portion 12.
  • the spout exit 32 may be relatively narrower in comparison to the spout entry 30 so that the spout portion 14 is generally trapezoidal in plan form about an elongate centre axis“X” that in this example also defines the centre axis and a plane of symmetry for the reservoir portion 12 as well as the overall pouch 10.
  • the spout exit 32 may be relatively wider in plan form view in comparison to the passage 20 that extends intermediate from the spout exit 32
  • the spout portion 14 provides a charging chamber 34 therein communicating with reservoir portion 12 to receive and retain a pre-measured charge of the liquid 11.
  • Each of the inner opposing side walls 31 defines an acute angle“A” relative to the centrally disposed longitudinal axis“X”.
  • the angle“A” is preferably selected from the range of from 5° to 30°. More preferably, approximately 10° to 16°.
  • the valve 16 begins at the spout exit 32, and continues as the straight passage 20 to the valve exit 21 at a dispending end 23 of the pouch 10.
  • the passage 20 is substantially narrower relative to the spout exit 32.
  • the passage 20 in this example is about 3 to 7 mm in width.
  • the opposing outer sides 35 of the spout portion 14 are likewise angled relative to the inner opposing side walls 31, and the opposing outer sides 35 extend past the spout exit 32 and along side and conversing toward the straight passage 20.
  • the opposing outer sides 35 terminating at the valve exit 21 being spaced apart and wider than the straight passage 20.
  • the valve exit 21 is at the tip 37 of the di spending pouch 10.
  • the geometry of the spout portion 14 results in the spout portion 14, and in particular the valve 16, becoming curved or“spooning” if pressure is applied to the pouch 10, such as at location“P” of the reservoir portion 12 as shown in Figure 3.
  • This curving of the valve 16 crimps or pinches together of overlying and unattached portions of panels 24, specifically the valve walls 18, defining the valve 16 and passage 20.
  • This crimping or pinching results in the pouch 10 being in a sealed condition, and the valve being in a closed condition.
  • the pouch 10 almost always has some pressure applied thereto and as such that valve 16 adopts a normally closed condition that becomes increasingly sealed when pressure is applied to the reservoir portion 12.
  • the tip 37 may move up or down.
  • first pinch or seal point 50 is located at or proximate the entry 17 to the passage 20 of the valve 16
  • second pinch or seal point 52 is located at or proximate the exit 21 of the valve 16 near the tip 37.
  • the sealing at the first and second seal points 50, 52 typically occurs or increases when the spout portion 14 curves as is shown in Figure 3.
  • the first and second seal points 50, 52 arise to increased film tension of valve walls 18 that become pressed against one another.
  • valve walls 18 at the cross channel 23 are formed to be relatively flat and thereby fully contact one another with no or minimal gaps when in the seal condition and thereby providing the normally close valve 16.
  • the cross channel 23 keeps the valve walls 18 proximate thereto, on either side of the channel 23, relatively flat and as such the valve 16 is less prone to leakage when the dispensing pouch 10 is relaxed and the spout portion is relatively flat.
  • the valve walls 18 proximate the cross channel 23 provide a third seal 55 to assist to inhibit uncontrolled flow.
  • the overall sealing arrangement thereby improving the operation on the one-way valve 16 and assisting to seals the internal liquid 11 from the external environment thereby assisting the reduce contamination.
  • valve 16 will open to dispense the pre-measured charge of liquid from charging chamber 26 and through passage 20.
  • the predetermined level of external pressure may be applied by hand in direction“T” as best shown in Figure 5.
  • a user may directly by applying finger pressure to the spout portion 14 in a downward sliding movement of the fingers in direction“T”. This movement straightens the spout portion 14 and, in particular, the passage 20 of valve 14 to release the first, second, and third seal points 50, 52, 55 to an open condition thereby allowing flow of the liquid 11.
  • the channel 23 provides increased space (cross sectional area of the passage 20) and structure within the passage 20 intermediate thereto which assist to maintain a consistent flow of the liquid in the open condition.
  • the dispending pouch 10, more specifically the spout portion 14 and valve 16 may be formed by a forming arrangement 100 including a heat insulating die plate 102, an opposing cold sealing die 104 and a heat insulating die insert 106.
  • the heat insulating die insert 106 includes milled cross section channel void 108 that is used to form the cross channel 23 of the passage 20.
  • the opposing cold sealing die 104 is provided as a silicone profile 110 that may be about 3 to 4 mm thick.
  • a heat plate 114 is used to apply heat to the heat insulating die plate 102 and a cool plate 116 is located to support and cool the opposing cold sealing die 104.
  • the insert 106 includes a body 117 having an I- shaped cross section extending between its opposing ends 118.
  • the body 117 includes the machined channel void 108, a securing aperture 115 to connect the insert 106 with die 102 and a plurality of cooling apertures 120 extending between opposing sides 122 of the body 117.
  • the insert 106 is used to“negatively” form the cross channel 23. It is noted that machined channel void 108 may be about 1mm to 2mm deep and about 3mm to 4 mm wide.
  • the cross section shape and apertures 120 provide linear and lengthwise ventilation.
  • the solid thermostatically controlled heated die 102 applies pressure and heat to the two opposing panels 24 of material against the opposite cold plate 116 with the silicon profile gasket 104.
  • This allows control pressure and heat transfer, in particular, about the milled cross section channel void 108 of the insert 106 such that movement of film material of the opposing panels 24 is controlled in the passage 20 area without direct heat applied to passage and channel area, with no or negative pressure applied to the channel area.
  • This allows formation of a negative formed“box-style” cross channel 23.
  • the cross channel 23 in the passage 20 of the valve 16 assists to keep the nozzle 16 free from unwanted liquid product movements as well as secure sealing from the outside environment.
  • the dispenser 205 has a deep draw pack or pouch 210 which has a larger volume reservoir portion 212 and the spout portion 214 is fitted with a flow promotion device 280 to assist fluid, such as a soap or cell, move from the pouch 210 toward the normally closed valve 216.
  • the reservoir portion 212 in this case may be a more voluminous rectangular or square prism as best shown in Figure 13b.
  • the normally closed valve 216 is formed and functions in the same manner as defined above in relation to the first example and is therefore not described in any further detail here. Accordingly, like the first example, the valve 216 has a similar cross channel 223 across the passage 220. However, due to the increased volume of the reservoir portion 212 the flow promotion device 280 is included in this example to assist to draw and pump fluid from the reservoir portion 212 toward the normally closed valve 216.
  • the flow promotion device 280 may be provided in the form of an insert 282, best shown in Figures 14a and 14b, that is fitted to the dispenser 205 during manufacture as shown in Figure 15.
  • the insert 282 may be provided in the form of a dome 284 formed from a moulded resilient plastic that may be compressed flat when depressed.
  • the dome 284 may have a diameter“D’ of about 25mm to 30mm, in this example 28mm. An overall height of about 8 to 12mm, in this example 10mm and a mouth width of about 8 to 12mm, in this example, 10mm.
  • the uncompressed volume capacity may be about 25ml.
  • the dome 284 may be adapted to different sizes and capacities as required.
  • the dome 284 has a rim 285 includes a cross arrangement 286 which is located at an opposing side to a mouth 287 defined between inward facing tabs 288.
  • the cross arrangement 286 is formed from two cross sections 290a, 290b that may be resiliently compressed. Between the tabs 288 and the cross arrangement 296 is defined the internal volume 291 of the dome 284.
  • the dome 284 functions as a pump that when initially released may draw fluid from the reservoir portion 212 into its internal volume 291. The dome 284 may then be depressed by a use to expel the fluid, and action of depressing the dome 284 also opens the value 216 which allows the fluid to be expelled from the dispenser 205.
  • the second example of the dispenser 205 is formed in a similar manner to the first example with two panels 224 that are heat welded or sealed together within a forming arrangement 300. However, the insert 282 is also fitted between the panels 224 as best shown in Figure 15 and is retained between the two panels 224 once sealed. It is also noted that due the size of the reservoir portion 212, the dispenser 205 may further include a housing (not shown) that may be used to hold and support the pouch 210. The housing may have body slightly larger than the reservoir portion 212 and be of a similar shape. The spout portion 214 may extend from the housing so that the flow promotion device 280 may be accessed and depressed which then allows valve 216 to become opened and the fluid delivered from the dispenser 205 in a similar way to that described above in relation to the first example.
  • the valve namely the cross channel and method of formation thereof provide an improved one way valve, also known as flap valve, by substantially totally closing of the dispensing passage from external environment, thus avoiding product contamination.
  • the valve having the cross-channel also increases flow rate in an open condition and eliminates leaks or drips in the closed condition.
  • the combination of material choice, the sealing die design and sealing method ensure total control of the two opposing panels of material.
  • the material of the panels in the channel area will move slightly as result of natural film tensions when the heating and sealing action is removed.
  • the created cross channel formed by negative pressure in the centre of the passage during manufacture, seeks to stability and flatten the passage of the valve proximate the cross-channel thereby allowing the passage entry and exit to slightly relax. This calculated tension control ensures maximum film stability in the valve area and improves the sealing of the valve as well as the continuity of flow in use.
  • the dispenser may take various forms, shapes and sizes, and, in particular, the valve may be utilised with different types of dispensers or the like, without limitation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

La présente invention concerne une vanne (16, 216) pour un distributeur (5, 205), le distributeur (5, 205) comprenant un réservoir (12, 212) et un bec de remplissage (14, 214) en communication fluidique avec le réservoir (12, 212), le bec de remplissage (14, 214) menant à la vanne (16, 216). La vanne (16, 216) comprend une paire de parois de vanne plates et disposées de manière adjacente (18, 218) définissant un passage rectangulaire et droit normalement fermé (20, 220). La vanne (16, 216) et le passage (20, 220) peuvent être ouverts en réponse à l'application d'une pression externe vers le bec de remplissage (14, 214) et/ou au niveau de celui-ci pour distribuer la quantité de liquide et peuvent être refermés en réponse à la suppression d'une telle pression. La présente invention concerne également un distributeur (5, 205) ou un sachet (10, 210) comprenant ladite vanne (16, 216) et des procédés de formation de ladite vanne (16, 216) et dudit distributeur (10, 210).
PCT/AU2020/050195 2019-03-03 2020-03-03 Vanne pour distributeur, sachet de distribution et procédé de formation associé Ceased WO2020176935A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2019900686 2019-03-03
AU2019900686A AU2019900686A0 (en) 2019-03-03 Valve for a Dispenser, Dispensing Pouch and Method of forming the Same

Publications (1)

Publication Number Publication Date
WO2020176935A1 true WO2020176935A1 (fr) 2020-09-10

Family

ID=72337340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2020/050195 Ceased WO2020176935A1 (fr) 2019-03-03 2020-03-03 Vanne pour distributeur, sachet de distribution et procédé de formation associé

Country Status (1)

Country Link
WO (1) WO2020176935A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610477A (en) * 1969-07-16 1971-10-05 Albert M Herzig Automatic closure for containers
US3635376A (en) * 1970-06-05 1972-01-18 Hellstrom Harold R Quick-open flexible package
WO1994022731A1 (fr) * 1993-03-29 1994-10-13 Plum Kemi Produktion A/S Sac ou poche destine(e) a contenir un fluide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610477A (en) * 1969-07-16 1971-10-05 Albert M Herzig Automatic closure for containers
US3635376A (en) * 1970-06-05 1972-01-18 Hellstrom Harold R Quick-open flexible package
WO1994022731A1 (fr) * 1993-03-29 1994-10-13 Plum Kemi Produktion A/S Sac ou poche destine(e) a contenir un fluide

Similar Documents

Publication Publication Date Title
US5067635A (en) Dispenser pouch and holder and dispensing unit therefor
EP0226290B1 (fr) Sachet distributeur et son procédé de fabrication
US5018646A (en) Squeezable fluid container
EP0696998B1 (fr) Sac de distribution de fluide a orifice de sortie en forme de venturi
US6357631B1 (en) Container with formed memory valve
US5996845A (en) Self-closing liquid dispensing package
US5000350A (en) Dispenser with replaceable pouch
EP0675834B1 (fr) Poche de distribution de fluide a sorties multiples
EP0690811B1 (fr) Sac ou poche destine(e) a contenir un fluide
CN1812741B (zh) 用于为个人卫生装置装载流体的带有侧联接板的袋子
EP3612466B1 (fr) Valve profilée et emballage pour dosage et distribution de liquide
US20070114250A1 (en) Molded container head with orifice valve
EP3615451B1 (fr) Valve à bille flexible pour mesure et distribution de liquide, emballage avec valve à bille et procédé pour former une valve à bille
JP3777773B2 (ja) 注出機能付包装袋
EP0397852A4 (en) Squeezable fluid container
WO2020176935A1 (fr) Vanne pour distributeur, sachet de distribution et procédé de formation associé
WO1988002339A1 (fr) Recipient auto-obturable distributeur de liquide
CN103717499A (zh) 具有用于可流动的产品的管嘴的包装
US20020069615A1 (en) Opening mechanism
WO2001034485A1 (fr) Systeme de pompage pour poche de distribution
JP3960075B2 (ja) 吊り下げパウチ
US20240391619A1 (en) Seal bar
JP4407146B2 (ja) 自己閉塞性パウチ
WO1996011854A1 (fr) Sac ou poche servant a contenir un fluide
BR112019021999B1 (pt) Estrutura de válvula de perfil para dosagem e dispensa de líquido

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20766591

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20766591

Country of ref document: EP

Kind code of ref document: A1