US20070230834A1 - Packages having reclosable pour spout with slider-operated zipper - Google Patents

Packages having reclosable pour spout with slider-operated zipper Download PDF

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Publication number
US20070230834A1
US20070230834A1 US11/396,007 US39600706A US2007230834A1 US 20070230834 A1 US20070230834 A1 US 20070230834A1 US 39600706 A US39600706 A US 39600706A US 2007230834 A1 US2007230834 A1 US 2007230834A1
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US
United States
Prior art keywords
zipper
slider
wall
package
receptacle
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.)
Abandoned
Application number
US11/396,007
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English (en)
Inventor
John Schneider
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to US11/396,007 priority Critical patent/US20070230834A1/en
Assigned to ILLINOIS TOOL WORKS INC. reassignment ILLINOIS TOOL WORKS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHNEIDER, JOHN H.
Priority to PCT/US2007/007078 priority patent/WO2007126663A1/en
Priority to JP2009502866A priority patent/JP5221515B2/ja
Priority to CN2007800155477A priority patent/CN101437727B/zh
Priority to NZ571700A priority patent/NZ571700A/en
Priority to EP07753686A priority patent/EP2001757A1/en
Priority to AU2007243731A priority patent/AU2007243731B2/en
Publication of US20070230834A1 publication Critical patent/US20070230834A1/en
Abandoned legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D75/00Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52Details
    • B65D75/58Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5805Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/16End- or aperture-closing arrangements or devices
    • B65D33/25Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2525Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener located between the fastener and the product compartment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/16End- or aperture-closing arrangements or devices
    • B65D33/25Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2533Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/16End- or aperture-closing arrangements or devices
    • B65D33/25Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2541Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D33/00Details of, or accessories for, sacks or bags
    • B65D33/16End- or aperture-closing arrangements or devices
    • B65D33/25Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2589Bag or slide fastener details cooperating with the slider, e.g. details for removing or installing the slider
    • B65D33/259End stops

Definitions

  • This invention generally relates to packaging for containing pourable contents such as breakfast cereal, snack food product and the like. More particularly, the invention relates to flexible cereal bags provided with a reclosable pour spout.
  • An unevenly opened bag may have an overhanging portion that blocks or traps cereal during pouring.
  • an overhanging portion of the ripped open bag may also cause spillage of the cereal contents into the crevice space between the bag and the box as the box is returned to the upright position.
  • U.S. Pat. No. 6,857,779 proposes to solve the foregoing problems by providing a flexible bag having a reclosable pour spout.
  • the bag has a first closure region comprising a top seal and a second closure region below the first closure region and comprising an inner heat seal that extends across a portion of the width of the bag and a reclosable fastener that extends across the remainder of the width of the bag.
  • the reclosable fastener extends upward at an angle from the end of the inner heat seal.
  • the upper sealed portion of the bag above the inner heat seal and reclosable fastener can be removed by severing at a tear line that extends across the full width of the bag but remains above the inner heat seal and above the angled fastener.
  • the opened portion of the bag forms a reclosable spout.
  • Other embodiments show the fastener in horizontal, vertical and downwardly angled positions.
  • the reclosable fastener is a zipper of the type used in sandwich and food storage bags.
  • U.S. Patent Application Publ. No. 2004/0208402 also discloses a package having a reclosable spout in the form of a fastener strip that does not extend across the full width of the package.
  • An embodiment is disclosed wherein the bag has side gussets and the fastener is W-shaped.
  • Reclosable bags having slider-operated zippers are generally more desirable to consumers than bags having zippers without sliders because the slider eliminates the need for the consumer to align the interlockable zipper profiles before causing those profiles to engage.
  • the present invention is directed to flexible bags having a slider-operated reclosable pour spout.
  • One aspect of the invention is a package comprising: a receptacle having an interior volume and a spout that, when in an opened state, allows access to the interior volume, the receptacle having first and second sides, and the spout starting near the first side and extending toward but not coming near the second side; a length of flexible zipper arranged to close the spout when the zipper is closed; and a slider mounted to the zipper, the slider being movable in a closing direction for closing the zipper and movable in an opening direction for opening the zipper.
  • a package comprising: a receptacle having an interior volume and comprising first and second walls, the first wall having a width dimension in a transverse direction when the first wall is in a planar state, the width dimension being the distance between first and second side edges of the first wall; a zipper joined to the receptacle in first and second zones of zipper/receptacle joinder, the zipper comprising first and second zipper strips, the first zipper strip comprising a first closure profile and a first flange having one portion connected to the first closure profile and another portion joined to the first wall in the first zone of zipper/receptacle joinder, and the second zipper strip comprising a second closure profile and a second flange having one portion connected to the second closure profile and another portion joined to the second wall in the second zone of zipper/receptacle joinder; a slider mounted to the first and second closure profiles, the first and second closure profiles being interlockable with each other to close the zipper when the slider is moved in a closing direction and being disengageable from each
  • a further aspect of the invention is a package comprising: a piece of bag making film sealed at a top seal of predetermined length, at a bottom seal and at a first vertical seal that extends from the top seal to the bottom seal to form a tube that is closed at both ends, the closed tube having an interior volume; a zipper disposed within the interior volume and comprising first and second mutually interlockable zipper strips joined to confronting portions of the tube; a slider mounted to the zipper, the first and second zipper strips being interlockable with each other to close the zipper when the slider is moved in a closing direction and being disengageable from each other for opening the zipper when the slider is moved in an opening direction; a first slider end stop positioned to stop the slider from moving further in the closing direction; and a second slider end stop positioned to stop the slider from moving further in the opening direction, wherein the distance between the first slider end stop and one end of the top seal is substantially smaller than the distance between the second slider end stop and the other end of the top seal, the slider being movable between the first and second slider end
  • FIG. 1 is a drawing showing a front view of a package having a slider-operated reclosable pour spout and constructed in accordance with one embodiment of the invention.
  • the hatching in FIG. 1 indicates the positions of various seals.
  • the dashed lines indicate seals present in alternative embodiments.
  • FIG. 2 is a drawing showing a sectional view of the package depicted in FIG. 1 .
  • the section is taken through a vertical plane indicated by section line 2 - 2 in FIG. 1 .
  • Each series of Xs in FIG. 2 (and other sectional views) indicates a respective permanent heat seal.
  • FIG. 4 is a drawing showing a front view of the package of FIG. 1 after confronting upper corners of the front and rear walls have been torn off to expose the slider and closure profiles.
  • the dashed rectangle surrounding the package represents a paperboard box.
  • FIG. 6 is a drawing showing a sectional view of a portion of a gusseted package in accordance with a further embodiment of the invention. The section is taken in a horizontal plane that intersects the zipper flanges.
  • FIG. 7 is a drawing showing a sectional view of a portion of a package having a tamper-evident feature below the closure profiles. The section is taken in a vertical plane that intersects the zipper.
  • the technology for transverse application of slider-operated zippers at spaced intervals on an intermittently advancing web of bag making film (during dwell times) at a station upstream of a VFFS machine is well known.
  • a distal portion of a slider-carrying fastener tape is oriented transversely in overlying relationship with a tensioned section of a web of bag making film situated upstream of the VFFS machine.
  • a distal section of the fastener tape is then severed from the remainder of the slider-carrying fastener tape to form a slider/zipper assembly that will be joined to the web.
  • the equipment for manufacturing the slider-carrying fastener tape may be placed in line with the zipper application station.
  • the slider-carrying fastener tape may be manufactured at a different site, wound onto a supply reel that is transported to the site of the VFFS machine, and then paid out from that supply reel during operation of the VFFS machine.
  • the fastener tape comprises a pair of zipper strips, each zipper strip being formed by extruding thermoplastic material to form a respective closure profile and zipper flange connected thereto.
  • the closure profiles have complementary shapes that interlock, the shapes being constant in the lengthwise direction.
  • the fastener tape may be manufactured using a process involving concurrent formation of slider end stop structures and sealing of zipper flanges at spaced intervals. This forming/sealing operation is typically carried out by applying ultrasonic wave energy to the zipper material. However, instead of ultrasonic wave energy, thermal or conduction heat sealing methods may be used.
  • Sufficient energy is applied to the zipper or closure profiles in a first zone and to the zipper flanges in a second zone to soften and merge the plastic material in both zones, the merged material forming a zone of fusion upon cooling.
  • Each zone of fusion has a plane of symmetry, the planes of symmetry being spaced along the fastener tape at intervals equal to one zipper length.
  • Each zone of fusion is also shaped to form a pair of slider end stops that are joined at their backs until when the fastener tape is cut along the plane of symmetry at the zipper application station.
  • the zipper strips could be fused together and a pair of clips or other slider end stop devices could be attached to each region of fused zipper strips, a vertical cut being made later through the zone of fusion and between the attached slider end stops.
  • a distal portion of a fastener tape comprising interlocked zipper strips with sliders mounted thereto is advanced in a transverse direction to a zipper application station.
  • the sliders are spaced at regular intervals along the length of the tape, one slider per zipper-length section of fastener tape.
  • a distal zipper-length section of fastener tape with a slider mounted thereto is severed from the remainder of the fastener tape.
  • a flange of one zipper strip of the severed section is joined to the web (e.g., by conductive heat sealing) while the web is stationary.
  • the other zipper strip is held in place only by the interlocking of its closure profile with that of the zipper strip that has been joined to the web.
  • the zipper is oriented transversely on the web and has a length and position such that, in the final package, the zipper will not be centered relative to the sides of the package, but rather will start at or near one side and extend part way across the package, i.e., the distance between the far end of the zipper and the far side of the package is greater than the distance between the near end of the zipper and the near side of the package.
  • the zipper will end at or near a vertical centerline of the package, i.e., preferably the length of the zipper is not greater than half of the width of the final package.
  • the zipper-carrying web is pulled through the VFFS machine, i.e., is advanced in the machine direction, by a distance equal to the height of one package.
  • the zipper-carrying web is advanced intermittently through the VFFS machine, the previously described forming, filling and sealing steps are performed.
  • the flange of the other zipper strip will be joined to the web.
  • a vertical seal that extends from the top seal to at least the zipper flange/web seal is also formed.
  • those same embodiments may also include a peel seal. The peel seal may be above or below the slider-operated zipper.
  • the marginal portions at the tops of the front and rear walls are joined by conductive heat sealing to form a top seal 16 (indicated by a band-shaped zone of hatching in FIG. 1 and by Xs in FIG. 2 ).
  • the marginal portions at the bottoms of the front and rear walls are joined by conductive heat sealing to form a bottom seal 18 (also indicated by a band-shaped zone of hatching in FIG. 1 and by Xs in FIG. 2 ).
  • the rear wall comprises a vertical fin or lap seal (not visible in FIG. 1 ), where confronting marginal portions of the web of bag making film wrapped around the fill tube of the VFFS machine were heat sealed together to form a tube as previously described.
  • the present invention does not require the use of a straddling-type slider.
  • a slider having a plow or separating finger can be employed, in which case the zipper strip joints at the ends of the zipper can serve as slider end stops.
  • the slider/zipper assembly is of the type disclosed in U.S. Pat. No. 6,047,450, in which the slider has no separating finger and the closure profiles provide a moisture-tight, if not airtight, seal when the zipper is fully closed.
  • the zipper may comprise interlocking alternating hook-shaped or ball-shaped closure elements.
  • the zipper strips 6 and 8 are made of thermoplastic material.
  • the preferred zipper material is polyethylene or polypropylene.
  • the zipper flanges may have a surface layer of sealant material that melts at a temperature lower than the melting point of the material making up the remainder of the zipper.
  • the closure profiles 30 and 34 are engaged, i.e., interlocked, with each other by moving the slider 10 in the closing direction from one end of the zipper to the other. Conversely, the closure profiles 30 and 34 are disengaged from each other by moving the slider 10 in the opposite direction.
  • the slider 10 may be made in multiple parts and welded together or the parts may be constructed to be snapped together.
  • the slider may also be of one-piece construction.
  • the slider can be made using any desired method, such as injection molding.
  • the slider can be molded from any suitable plastic, such as nylon, polypropylene, polystyrene, acetal, polyketone, polybutylene terephthalate, high-density polyethylene, polycarbonate, or ABS.
  • the receptacle 2 is provided with a first line of weakened tear resistance 42 (indicated by a dotted line) that extends from the left side edge of the front wall 12 to the end of the zipper and a second line of weakened tear resistance 44 (also indicated by a dotted line) that extends from the top edge of the front wall to the end of the first line of weakened tear resistance 42 .
  • the tear line 42 is disposed generally parallel to and at an elevation slightly below the closure profile 30
  • the tear line 44 is disposed generally vertically, i.e., in parallel with the side edges of the front wall 12 .
  • the zipper is disposed generally horizontally, as depicted in FIG.
  • a curved or angled tear line connecting segment may be provided in place of the right-angled intersection depicted in FIG. 1 .
  • the tear lines can be formed by any conventional means, including lines of spaced perforations, laser scoring, and so forth.
  • the receptacle 2 shown in FIGS. 1 and 4 further comprises a generally horizontal peel seal 20 that extends the length of the zipper at an elevation below the zipper flanges and a generally vertical seal 22 that extends from the top seal 16 to the peel seal 20 .
  • the peel seal 20 could be formed between the zipper flanges.
  • the peel seal 20 is formed by activating a band-shaped strip of peelable seal material, e.g., by applying a predetermined amount of heat and pressure for a duration of time sufficient to activate the peelable seal material without forming a permanent seal.
  • the vertical seal 22 is formed by joining respective portions of the front and rear walls together in a band-shaped zone, e.g., by conductive heat sealing.
  • the peel seal 20 and vertical seal 22 in conjunction with the top seal 16 , the bottom seal 18 and the vertical fin or lap seal (not shown in the drawings) by which the tube was formed, provide airtight boundaries that define the compartment in which the product P (see FIG. 2 ), such as dry cereal, is contained.
  • the peel seal 20 and vertical seal 22 are formed after the compartment or pocket has been filled with product through the open top of the receptacle.
  • the peel seal 20 also provides additional tamper evidence. Even after the corner of the receptacle has been torn off and the zipper has been opened, the intact peel seal blocks access to the product compartment and must be ruptured by the consumer.
  • the vertical seal 22 blocks product from entering the interior volume above the zipper and the interior volume between the zipper and the peel seal, except through the ruptured peel seal and opened zipper.
  • the peel seal 20 can be extended across the full width of the receptacle, the extension 20 ′ of the peel seal being indicated by dashed lines in FIG. 1 .
  • the peel seal 20 can be ruptured part way or all the way across the width of the bag.
  • the horizontal seal 28 will block product, other than product that has passed through the open zipper, from entering the space above the zipper, i.e., from passing around the zipper at the central portion of the receptacle.
  • the slider 10 is in a park position (seen in FIG. 1 ) whereat the zipper is closed, and the peel seal 20 is intact.
  • the slider is moved to a park position (indicated by the dashed rectangle 10 in FIG. 4 ) whereat the zipper is open, and lastly the peel seal 20 is ruptured to access the product compartment.
  • the box 64 Using the exposed open zipper as a pouring spout, the box 64 , with the package inside, can then be turned upside-down and the pourable product (e.g., cereal) can be poured out through the ruptured peel seal and then through the open zipper.
  • the pourable product e.g., cereal
  • the sides of the receptacle may be gusseted.
  • the technology for making gusseted bags on a VFFS machine is well known and typically involves the use of opposing reciprocating gusset plows to form fold lines at opposing sides of the tube of bag making film before the tube is filled with product.
  • Each side gusset comprises a pair of gusset panels connected to each other at a central fold in the gusset and respectively connected to the front and rear walls at a respective side of the receptacle.
  • FIG. 5 is a sectional view of a gusseted bag wherein the section is taken along a horizontal plane that intersects the zipper flanges 32 and 36 , which are respectively joined to the front and rear walls 12 and 14 of the receptacle, as previously described.
  • the rear wall 14 incorporates a lap seal 21 , which was formed by wrapping a web of bag making film around the fill tube of a VFFS machine, the width of the web and the diameter of the fill tube being selected so that the marginal portions of the web overlap and can be joined to each other as shown.
  • the sectional plane also passes through a vertical seal 22 formed by joining the front wall 12 to the rear wall 14 in a band-shaped zone in the manner previously described.
  • the gusseted receptacle has side gussets 50 and 52 .
  • Side gusset 50 comprises gusset panels 54 and 56 , which are connected to each other at a central fold in side gusset 50 .
  • Side gusset 52 comprises gusset panels 58 and 60 , which are connected to each other at a central fold in side gusset 52 .
  • the gusset panels 54 and 58 are also connected to respective side edges of the rear wall 14 by respective folds, while the gusset panels 56 and 60 are also connected to respective side edges of the front wall 12 by respective folds.
  • the uppermost portions of the gusset panels 54 , 56 are captured in the top seal of the receptacle at one end thereof and the uppermost portions of the gusset panels 58 , 60 are captured in the top seal of the receptacle at the other end thereof.
  • the lowermost portions of the gusset panels 54 , 56 are captured in the bottom seal of the receptacle at one end thereof and the lowermost portions of the gusset panels 58 , 60 are captured in the bottom seal of the receptacle at the other end thereof.
  • the zipper differs from the zipper incorporated in the embodiment shown in FIG.
  • the slider-zipper assembly is installed with the slider at a zipper partly opened position, removed from the slider end stop at the side of the package by a sufficient distance to allow the gusset 50 to be folded inward to an intervening position between the ends of the zipper strips, as shown in FIG. 5 .
  • a slider end stop should be formed or attached to the closure profile at one or each of the unjoined ends of the zipper strips to prevent the slider from sliding off the end of the zipper during reclosure of the pour spout.
  • each of the gusset panels 54 and 56 will have a respective horizontal tear line disposed at an elevation below the closure profiles of the zipper, which tear lines meet at the central fold in the gusset.
  • the corner of the receptacle is torn away to expose the slider-zipper assembly
  • the upper portions of the gusset panels 54 and 56 will also be torn away.
  • the gusset panels 54 and 56 will not interfere with the slider when it is moved to the zipper fully closed position.
  • the gusseted bag partly depicted in FIG. 5 may be provided with a peel seal similar to peel seal 20 shown in FIG. 1 , with the difference that the peel seal would need to be forked at the end adjacent the side gusset 50 , one leg of the forked portion of the peel seal sealing the interstice between a portion of the gusset panel 54 and a confronting portion of the rear wall 14 , and the other leg of the forked portion of the peel seal sealing the interstice between a portion of the gusset panel 56 and a confronting portion of the front wall 12 .
  • the bag Below the elevation of the internal peel seal, the bag would be fully expandable due the side gussets, thereby increasing the amount of product that can be contained in the package.
  • the ends of the zipper strips adjacent the side gusset can be joined together and placed between the front wall 12 and the gusset panel 56 (as shown in FIG. 6 ) or between the rear wall 14 and the gusset panel 54 (not shown).
  • respective portions of the rear wall 14 , and the gusset panels 54 and 56 are joined to each other at the elevation of the zone where the zipper flange 36 is joined to the rear wall 14 , forming a zone 62 where four layers are joined together.
  • This configuration would allow the slider to be located at the zipper fully closed position, i.e., between the gusset panel 54 and front wall 12 , in the finished package.
  • zipper flange 36 is joined to the rear wall 14 by a permanent heat seal 72 .
  • Zipper flange 32 ′ which is longer than flange 36 , is joined to the front wall 12 by permanent heat seals 66 and 68 .
  • a distal portion of the flange 32 ′ is folded and joined to the rear wall 14 by a permanent heat seal 70 , which is located below the seal 72 .
  • Each of the seals 66 , 68 , 70 and 72 is a band of joined, e.g., fused, material that extends the length of the zipper.
  • the seals 66 and 68 are generally parallel to each other, and the seals 70 and 72 are generally parallel to each other.
  • seals 66 and 72 are generally opposed to each other at one elevation, and seals 68 and 70 are generally opposed to each other at a lower elevation.
  • the long flange 32 ′ may be provided with a tear line at the fold 74 .
  • the distal portion of the flange 32 ′ will be separated from the remainder of flange 32 ′ when the tear line at fold 74 is ruptured.
  • the tear line at the fold 74 may take the form of a scoreline or a line of contamination in the extruded thermoplastic material of the flange or any other form of weakened tear resistance along a line that is not permeable to air.
  • the tear line may comprise a line of perforations.
  • the line of perforations is capped by a frangible strip (not shown in FIG. 7 ) of lightweight material, as disclosed in U.S. Pat. No. 5,023,122.
  • This frangible strip seals the perforations, but tears readily when the perforated flange is ruptured along the perforations.
  • the sealing strip may be heat sealed to the perforated flange or the sealing strip may be adhesive backed to allow the strip to be bonded to the flange by adhesive. Alternatively, the sealing strip may be provided by extruding a thin layer of material over the perforations.
  • the details of how to manufacture a sealing strip for capping perforations in a substrate are fully disclosed in U.S. Pat. No. 5,023,122.
  • the intact long flange 32 ′ provides hermetic sealing. By bearing down on the flange 32 ′ at the fold 74 , the tear line can be ruptured, thereby providing access to the product compartment.
  • the zipper could alternatively be disposed at an angle (preferably in the range of 5 to 45 degrees), with the elevation of the zipper increasing as the slider moves from the zipper closed position (e.g., near the side edge of the bag) to the zipper fully opened position (e.g., near the vertical seal).
  • the zone of web/zipper joinder e.g., item 24 in FIG. 1
  • a peel seal 20 can be placed on the consumer side of the zipper instead on the product side, as was shown in FIG. 1 .
  • the opposing sides of a strip of peel seal material are joined to respective portions of the front and rear walls 12 and 14 .
  • the front and rear walls 12 and 14 may extend upward to form pull flanges 76 and 78 , which can be pulled apart by the consumer in order to cause rupture of the peel seal 20 .
  • the vertical seal 22 need only extend downward to the elevation of the zones (e.g., zone 24 in FIG. 9 ) where the zipper flanges are joined to the front and rear walls.
  • the peel seal 20 is aligned and contiguous with a top seal 16 ′ that extends to the right (as viewed in FIG. 9 ) of the vertical seal 22 .
  • the vertical seal 22 is preferably a permanent heat seal of the type previously described.
  • the top seal 16 ′ may also be a permanent heat seal formed by joining the front and rear walls together in a band-shaped zone.
  • a strip of peel seal material could be applied across the full width of the package and during the manufacturing process, the left-hand portion of the strip of peel seal material could be heated to a temperature at a pressure and for a duration of time that causes the peel seal material to activate, while the right-hand portion of the strip of peel seal material is heated to a temperature at a pressure and for a duration of time that causes the peel seal material to become a permanent heat seal.
  • One known method of making a peel seal involves the application of respective laminates on opposing portions of the receptacle.
  • a peel seal is formed by heat sealing the peel sealable laminates together. Later, when the consumer pulls the opposing portions of the receptacle or closure apart, the peel seal will rupture.
  • one or more layers of one laminate disengages from the other layer or layers of that laminate and remain adhered to the other laminate. As a result, the other laminate will include at least one additional layer after the peel seal has been broken.
  • the disengagement of the one layer from the first laminate is accomplished by using layers composed of different polymeric materials, with the resulting adjacent layers having varying bond strengths between the layers. Rupture will occur between the two layers of the peel seal that have the lowest bond strength.
  • Another known method of making a peel seal involves adhering a respective layer of film to opposing portions of the receptacle, wherein one or both of the film layers contains contaminants.
  • the peel seal is formed by heat sealing the film layers together, the bond between them is weak due to the surface contamination.
  • the film layers detach from each other during rupture of the peel seal.
  • the verb “joined” means fused, bonded, sealed, or adhered, whether by application of heat and/or pressure, application of ultrasonic energy, application of a layer of adhesive material or bonding agent, interposition of an adhesive or bonding strip, etc.
  • the term “wall” is used in a broad sense to include both a discrete piece of packaging material and a portion of a folded piece of packaging material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
US11/396,007 2006-03-31 2006-03-31 Packages having reclosable pour spout with slider-operated zipper Abandoned US20070230834A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US11/396,007 US20070230834A1 (en) 2006-03-31 2006-03-31 Packages having reclosable pour spout with slider-operated zipper
PCT/US2007/007078 WO2007126663A1 (en) 2006-03-31 2007-03-22 Bags provided with a slider-operated reclosable pour spout
JP2009502866A JP5221515B2 (ja) 2006-03-31 2007-03-22 スライダー操作式再閉鎖可能な注ぎ口を備える袋
CN2007800155477A CN101437727B (zh) 2006-03-31 2007-03-22 利用滑块操作来重新闭合开口的包装袋及其制造方法
NZ571700A NZ571700A (en) 2006-03-31 2007-03-22 Bags provided with a slider-operated reclosable pour spout
EP07753686A EP2001757A1 (en) 2006-03-31 2007-03-22 Bags provided with a slider-operated reclosable pour spout
AU2007243731A AU2007243731B2 (en) 2006-03-31 2007-03-22 Bags provided with a slider-operated reclosable pour spout

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/396,007 US20070230834A1 (en) 2006-03-31 2006-03-31 Packages having reclosable pour spout with slider-operated zipper

Publications (1)

Publication Number Publication Date
US20070230834A1 true US20070230834A1 (en) 2007-10-04

Family

ID=38446051

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/396,007 Abandoned US20070230834A1 (en) 2006-03-31 2006-03-31 Packages having reclosable pour spout with slider-operated zipper

Country Status (7)

Country Link
US (1) US20070230834A1 (zh)
EP (1) EP2001757A1 (zh)
JP (1) JP5221515B2 (zh)
CN (1) CN101437727B (zh)
AU (1) AU2007243731B2 (zh)
NZ (1) NZ571700A (zh)
WO (1) WO2007126663A1 (zh)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080008404A1 (en) * 2006-06-28 2008-01-10 Jochen Brauer Film bag
US20090142007A1 (en) * 2007-11-21 2009-06-04 S2F Flexico Bag including closing profiles actuated by a slider
DE102008011471A1 (de) * 2008-02-27 2009-09-03 Nordenia Deutschland Halle Gmbh Seitenfaltenbeutel
US20100059512A1 (en) * 2005-11-07 2010-03-11 Dan Keefe Microwave interactive display package
US7681732B2 (en) 2008-01-11 2010-03-23 Cryovac, Inc. Laminated lidstock
US20100142858A1 (en) * 2008-11-14 2010-06-10 Alfons Kruse Plastic bag with pour spout and slide closure
US20100187254A1 (en) * 2008-11-10 2010-07-29 Tschantz Michell C Package with resealable flexible spout
US20110286688A1 (en) * 2010-05-18 2011-11-24 Gum Mark W Recolsable gusset bag
US20120099805A1 (en) * 2010-10-20 2012-04-26 Henri Bois Closure device and sack employing it
US20120195532A1 (en) * 2011-01-31 2012-08-02 Nordenia Deutschland Halle Gmbh Film bag for packaging of pourable products
US20140212073A1 (en) * 2013-01-30 2014-07-31 Jordan J. Takas Refillable food pouch
US20140334748A1 (en) * 2012-02-03 2014-11-13 Toppan Printing Co., Ltd. Pouch and pouch with enclosed contents
US20150010252A1 (en) * 2005-10-18 2015-01-08 Innoflex Incorporated Package having recloseable pour spout
US20150125094A1 (en) * 2012-10-19 2015-05-07 Peel Plastic Products Limited Bag for pouring
US9033578B2 (en) 2011-03-30 2015-05-19 Lee Rachel Ostroy Reusable food storage bag and process for making a reusable storage bag
US20160023809A1 (en) * 2014-07-22 2016-01-28 Nestec Sa Reclosable packaging with a handle, and methods and devices for making such packaging
US20160194116A1 (en) * 2012-12-06 2016-07-07 Innoflex Incorporated Bottom-gusseted package and method
WO2019113945A1 (en) * 2017-12-15 2019-06-20 The Procter & Gamble Company Refill pouch for pastilles
CN112119917A (zh) * 2020-08-11 2020-12-25 上海珩鋆机械有限公司 一种宠物狗宿舍
US20210354880A1 (en) * 2020-05-18 2021-11-18 Illinois Tool Works Inc. Resealable bag enclosure
US20220031532A1 (en) * 2020-07-30 2022-02-03 The Procter & Gamble Company Natural fiber-containing packages for absorbent articles
US11350802B2 (en) * 2018-07-20 2022-06-07 Mark Steele Package having an outward extending reclosure device
US11377284B2 (en) * 2019-11-13 2022-07-05 General Mills, Inc. Resealable bag and method of producing the resealable bag

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* Cited by examiner, † Cited by third party
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JP6139290B2 (ja) * 2013-06-18 2017-05-31 富士特殊紙業株式会社 ジッパー付ピロー包装袋
US9586724B2 (en) * 2014-06-10 2017-03-07 Cryovac, Inc. Easy open and reclosable gusseted package with die-cut web and reclosure mechanism
CN105523268B (zh) * 2016-01-14 2018-04-03 嘉善县飞虹钮扣厂 一种纽扣的包装结构
BR112019022096B1 (pt) * 2017-04-20 2023-05-09 Illinois Tool Works Inc Válvula para permitir dispensação seletiva de conteúdo de uma embalagem, método para formar uma válvula e embalagem para reter e dispensar conteúdo
WO2021046333A1 (en) * 2019-09-06 2021-03-11 Advanced Composite Structures, Llc Replaceable closure system for flexible panels

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358653A (en) * 1943-01-05 1944-09-19 Mock Hugo Closure for bags, pocketbooks, and other containers
US2929123A (en) * 1957-07-25 1960-03-22 Schneideman Samuel Slide clasp bag-end opener and closer
US3790992A (en) * 1971-06-30 1974-02-12 Minigrip Inc Profiled closing members with slide
US5023122A (en) * 1988-01-29 1991-06-11 Minigrip, Inc. Easy open bag structure
US5941643A (en) * 1998-04-07 1999-08-24 Triangle Package Machinery Company Partially zippered pouch and machine for making same
US5996884A (en) * 1997-12-16 1999-12-07 Pepsico, Inc. Hybrid container having a rigid body and polymer film ends
US6047450A (en) * 1999-02-09 2000-04-11 Illinois Tool Works Inc. Slide zipper assembly
US6164826A (en) * 1998-10-09 2000-12-26 Reynolds Consumer Products Inc. Resealable spout for side-gusseted packages
US6206571B1 (en) * 1999-06-24 2001-03-27 Alan D. Olin Flexible bag with resealable pour spout
US6325543B1 (en) * 2000-08-25 2001-12-04 Illinois Tool Works Inc. Gusseted zipper bag
US20020154835A1 (en) * 2001-04-23 2002-10-24 Fres-Co System Usa, Inc. Handle-pour spout closure for flexible packages, flexible packages including the same and method of making such flexible packages
US6481890B1 (en) * 2001-07-16 2002-11-19 Reynolds Consumer Products, Inc. Reclosable zipper having intermittent thickened flange; package; and methods
US20030148004A1 (en) * 2000-04-24 2003-08-07 Yumi Kawaguchi Liquid storage bag
US20040132840A1 (en) * 2001-06-04 2004-07-08 Bohling James Charles Methods for preparation of weak acid cation exchange resin, weak acid cation exchange resin, and down stream products made using the resins
US20040146224A1 (en) * 2003-01-29 2004-07-29 Stanley Piotrowski Gusseted reclosable package with slider-operated zipper
US20040206402A1 (en) * 2001-06-21 2004-10-21 Weinberger Mark T Reciprocating piston pump adjustable inlet ball travel
US20040208399A1 (en) * 2003-04-16 2004-10-21 Ron Linneweil Closure for containers and reclosable containers including the same
US20040208402A1 (en) * 2003-04-15 2004-10-21 Innoflex Incorporated Package having reclosable pour spout and method of forming same
US6817160B2 (en) * 2000-04-21 2004-11-16 Cmd Corporation Vertical form fill seal bag with recloseable seal and method of making thereof
US20060034551A1 (en) * 2003-04-16 2006-02-16 Ron Linneweil Reclosable containers
US7097092B1 (en) * 2002-08-02 2006-08-29 Ralcorp Holding, Inc. Package for food products
US20060210199A1 (en) * 2005-03-18 2006-09-21 Flex Pack U.S.A., Inc. Container for distributing granular material and associated method
US20070086683A1 (en) * 2005-10-18 2007-04-19 Yeager James W Package having recloseable pour spout
US20080008406A1 (en) * 2006-07-07 2008-01-10 Glyn Russell Pouches having reclosable pour spout in side gusset

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0741014A (ja) * 1993-07-30 1995-02-10 Okura Ind Co Ltd 流動物包装体
US6047480A (en) * 1998-04-13 2000-04-11 Motorola, Inc. Method of processing a semiconductor device
US20020094137A1 (en) * 2001-01-16 2002-07-18 Schneider John H. Tamper evident resealable packaging
US7341160B2 (en) * 2002-08-08 2008-03-11 Pactiv Corporation Reclosable package having an accessible zipper and a method for making the same
JP2004083068A (ja) * 2002-08-27 2004-03-18 Showa Highpolymer Co Ltd スライダー付きプラスチックチャックを備えた袋体
JP4596769B2 (ja) * 2003-12-16 2010-12-15 瀧川化学工業株式会社 スライダタイプのチャック付き包装袋
GB0406626D0 (en) * 2004-03-24 2004-04-28 Supreme Plastics Holdings Ltd Application of zipper lengths to a web
GB0419218D0 (en) * 2004-08-28 2004-09-29 Supreme Plastics Holdings Ltd Reclosable bag and zipper therefor

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358653A (en) * 1943-01-05 1944-09-19 Mock Hugo Closure for bags, pocketbooks, and other containers
US2929123A (en) * 1957-07-25 1960-03-22 Schneideman Samuel Slide clasp bag-end opener and closer
US3790992A (en) * 1971-06-30 1974-02-12 Minigrip Inc Profiled closing members with slide
US5023122A (en) * 1988-01-29 1991-06-11 Minigrip, Inc. Easy open bag structure
US5996884A (en) * 1997-12-16 1999-12-07 Pepsico, Inc. Hybrid container having a rigid body and polymer film ends
US5941643A (en) * 1998-04-07 1999-08-24 Triangle Package Machinery Company Partially zippered pouch and machine for making same
US6164826A (en) * 1998-10-09 2000-12-26 Reynolds Consumer Products Inc. Resealable spout for side-gusseted packages
US6047450A (en) * 1999-02-09 2000-04-11 Illinois Tool Works Inc. Slide zipper assembly
US6206571B1 (en) * 1999-06-24 2001-03-27 Alan D. Olin Flexible bag with resealable pour spout
US6857779B2 (en) * 1999-06-24 2005-02-22 Alan Olin Flexible bag with resealable pour spout
US6817160B2 (en) * 2000-04-21 2004-11-16 Cmd Corporation Vertical form fill seal bag with recloseable seal and method of making thereof
US20030148004A1 (en) * 2000-04-24 2003-08-07 Yumi Kawaguchi Liquid storage bag
US6325543B1 (en) * 2000-08-25 2001-12-04 Illinois Tool Works Inc. Gusseted zipper bag
US20020154835A1 (en) * 2001-04-23 2002-10-24 Fres-Co System Usa, Inc. Handle-pour spout closure for flexible packages, flexible packages including the same and method of making such flexible packages
US20040132840A1 (en) * 2001-06-04 2004-07-08 Bohling James Charles Methods for preparation of weak acid cation exchange resin, weak acid cation exchange resin, and down stream products made using the resins
US20040206402A1 (en) * 2001-06-21 2004-10-21 Weinberger Mark T Reciprocating piston pump adjustable inlet ball travel
US6481890B1 (en) * 2001-07-16 2002-11-19 Reynolds Consumer Products, Inc. Reclosable zipper having intermittent thickened flange; package; and methods
US7097092B1 (en) * 2002-08-02 2006-08-29 Ralcorp Holding, Inc. Package for food products
US20040146224A1 (en) * 2003-01-29 2004-07-29 Stanley Piotrowski Gusseted reclosable package with slider-operated zipper
US20040208402A1 (en) * 2003-04-15 2004-10-21 Innoflex Incorporated Package having reclosable pour spout and method of forming same
US20060034551A1 (en) * 2003-04-16 2006-02-16 Ron Linneweil Reclosable containers
US20040208399A1 (en) * 2003-04-16 2004-10-21 Ron Linneweil Closure for containers and reclosable containers including the same
US20060210199A1 (en) * 2005-03-18 2006-09-21 Flex Pack U.S.A., Inc. Container for distributing granular material and associated method
US20070086683A1 (en) * 2005-10-18 2007-04-19 Yeager James W Package having recloseable pour spout
US20080008406A1 (en) * 2006-07-07 2008-01-10 Glyn Russell Pouches having reclosable pour spout in side gusset

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9315299B2 (en) * 2005-10-18 2016-04-19 Innoflex Incorporated Package having recloseable pour spout
US20150010252A1 (en) * 2005-10-18 2015-01-08 Innoflex Incorporated Package having recloseable pour spout
US20100059512A1 (en) * 2005-11-07 2010-03-11 Dan Keefe Microwave interactive display package
US7976220B2 (en) * 2006-06-28 2011-07-12 Nordenia Deutschland Halle Gmbh Film bag
US20080008404A1 (en) * 2006-06-28 2008-01-10 Jochen Brauer Film bag
US20090142007A1 (en) * 2007-11-21 2009-06-04 S2F Flexico Bag including closing profiles actuated by a slider
US7681732B2 (en) 2008-01-11 2010-03-23 Cryovac, Inc. Laminated lidstock
DE102008011471A1 (de) * 2008-02-27 2009-09-03 Nordenia Deutschland Halle Gmbh Seitenfaltenbeutel
US8328048B2 (en) 2008-11-10 2012-12-11 Ipi, Inc. Package with resealable flexible spout
US20100187254A1 (en) * 2008-11-10 2010-07-29 Tschantz Michell C Package with resealable flexible spout
US20100142858A1 (en) * 2008-11-14 2010-06-10 Alfons Kruse Plastic bag with pour spout and slide closure
US8690428B2 (en) * 2008-11-14 2014-04-08 Mondi Halle Gmbh Plastic bag with pour spout and slide closure
CN101734405A (zh) * 2008-11-14 2010-06-16 诺尔迪尼亚德国哈雷有限公司 薄膜包装袋
US20110286688A1 (en) * 2010-05-18 2011-11-24 Gum Mark W Recolsable gusset bag
US20120099805A1 (en) * 2010-10-20 2012-04-26 Henri Bois Closure device and sack employing it
US20120195532A1 (en) * 2011-01-31 2012-08-02 Nordenia Deutschland Halle Gmbh Film bag for packaging of pourable products
US9033578B2 (en) 2011-03-30 2015-05-19 Lee Rachel Ostroy Reusable food storage bag and process for making a reusable storage bag
US11332291B2 (en) 2012-02-03 2022-05-17 Toppan Printing Co., Ltd. Container and container with enclosed contents
US10988294B2 (en) 2012-02-03 2021-04-27 Toppan Printing Co., Ltd. Container and container with enclosed contents
US9580220B2 (en) 2012-02-03 2017-02-28 Toppan Printing Co., Ltd. Container and container with enclosed contents
US9296537B2 (en) * 2012-02-03 2016-03-29 Toppan Printing Co., Ltd. Pouch and pouch with enclosed contents
US20140334748A1 (en) * 2012-02-03 2014-11-13 Toppan Printing Co., Ltd. Pouch and pouch with enclosed contents
US20150125094A1 (en) * 2012-10-19 2015-05-07 Peel Plastic Products Limited Bag for pouring
US10239664B2 (en) * 2012-12-06 2019-03-26 Innoflex Incorporated Bottom-gusseted package and method
US20160194116A1 (en) * 2012-12-06 2016-07-07 Innoflex Incorporated Bottom-gusseted package and method
US20140212073A1 (en) * 2013-01-30 2014-07-31 Jordan J. Takas Refillable food pouch
US10232984B2 (en) * 2014-07-22 2019-03-19 Nestec Sa Reclosable packaging with a handle, and methods and devices for making such packaging
US20160023809A1 (en) * 2014-07-22 2016-01-28 Nestec Sa Reclosable packaging with a handle, and methods and devices for making such packaging
WO2019113945A1 (en) * 2017-12-15 2019-06-20 The Procter & Gamble Company Refill pouch for pastilles
US11350802B2 (en) * 2018-07-20 2022-06-07 Mark Steele Package having an outward extending reclosure device
US11377284B2 (en) * 2019-11-13 2022-07-05 General Mills, Inc. Resealable bag and method of producing the resealable bag
US20210354880A1 (en) * 2020-05-18 2021-11-18 Illinois Tool Works Inc. Resealable bag enclosure
US11845587B2 (en) * 2020-05-18 2023-12-19 Illinois Tool Works Inc. Resealable bag enclosure
US20220031532A1 (en) * 2020-07-30 2022-02-03 The Procter & Gamble Company Natural fiber-containing packages for absorbent articles
CN112119917A (zh) * 2020-08-11 2020-12-25 上海珩鋆机械有限公司 一种宠物狗宿舍

Also Published As

Publication number Publication date
CN101437727A (zh) 2009-05-20
AU2007243731A1 (en) 2007-11-08
CN101437727B (zh) 2012-02-01
NZ571700A (en) 2011-08-26
JP5221515B2 (ja) 2013-06-26
EP2001757A1 (en) 2008-12-17
WO2007126663A1 (en) 2007-11-08
AU2007243731B2 (en) 2011-09-22
JP2009532278A (ja) 2009-09-10

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