EP1590253B1 - Sac refermable - Google Patents

Sac refermable Download PDF

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Publication number
EP1590253B1
EP1590253B1 EP03812879A EP03812879A EP1590253B1 EP 1590253 B1 EP1590253 B1 EP 1590253B1 EP 03812879 A EP03812879 A EP 03812879A EP 03812879 A EP03812879 A EP 03812879A EP 1590253 B1 EP1590253 B1 EP 1590253B1
Authority
EP
European Patent Office
Prior art keywords
bag
walls
seal
wall
peak
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.)
Expired - Lifetime
Application number
EP03812879A
Other languages
German (de)
English (en)
Other versions
EP1590253A2 (fr
EP1590253A4 (fr
Inventor
Jerry Winiecki
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.)
CMD Corp
Original Assignee
CMD Corp
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 US10/314,912 external-priority patent/US20040109616A1/en
Application filed by CMD Corp filed Critical CMD Corp
Publication of EP1590253A2 publication Critical patent/EP1590253A2/fr
Publication of EP1590253A4 publication Critical patent/EP1590253A4/fr
Application granted granted Critical
Publication of EP1590253B1 publication Critical patent/EP1590253B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/10—Handles formed of similar material to that used for the bag
    • B65D33/105—U-shaped
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/813—Applying closures
    • B31B70/8131—Making bags having interengaging closure elements
    • B31B70/8132—Applying the closure elements in the machine direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/864—Mounting separate handles on bags, sheets or webs
    • B31B70/868—Applying handles on a moving web followed by transverse folding

Definitions

  • the present invention relates generally to the art of bag making.
  • Bags are designed with various manufacturing concerns in mind, including ease of manufacturing, handles, type of material, type of closure, as well as features related to the bag when filled with product such as ability to stand on its own, the ability to stack easily, the ability to display the product name when stacked, etc. Often designing a bag to enhance one or more features results in a trade off of other features.
  • Machine direction edge includes an edge that is parallel to the machine direction.
  • Machine direction includes the direction a film travels through a machine.
  • bags used for pet food would preferably have a two-dimensional bottom so that the bag can stand on its own when filled.
  • Another desirable feature for pet food bags is that they form a cuboid when filled, to make shipping and stacking in stores easier.
  • Cuboid includes a six sided shape with generally right angles between the sides). Moreover, they would preferably present a side of the bag (as opposed to the top or bottom) when stacked so customers can easily read the label.
  • Handles one or more straps, loops, etc. that may be used to pick up a bag) make a bag that is heavy when filled easier to carry.
  • a bag formed of multiple walls helps avoid dimpling of the outer walls of the bag by the pet food (thus preserving the appearance of the bag).
  • a resealable closure a closure that may be resealed by the consumer, such as a zipper, hook and loop, friction fit, etc
  • a tamper-proof seal a seal that can be visually inspected to determine if it has been opened previously.
  • ease of manufacture is desirable to reduce costs.
  • the upper portion includes a top peak with a zipper closure and/or a tamper proof seal that extends the length thereof, in various embodiments.
  • corner seals join the front wall and the left side wall, and the corner seals do not extend the entire height of the walls, in another embodiment.
  • the side walls each have a generally vertical side seal extending from the top of the bag towards the bottom, below an upper end of the corner seals or to the bottom in various embodiments.
  • the bag is one of a plurality of bags formed from a film, and the side seals separate adjacent bags in another embodiment.
  • the bottom is a gusseted insert sealed to the front and back walls in another embodiment.
  • the lower portion is comprised of a laminated material and/or the upper portion is comprised of a poly material, in various embodiments.
  • a handle is sealed between layers of the laminate, near the top of the lower portion in another embodiment.
  • the bag when filled with product to a fill level, the shape of the filled portion is generally cuboid and/or the upper portion lays flat to form a top of the cuboid, in various embodiments.
  • the peak is formed at least partially from a top edge on each of the front and back walls, in another embodiment.
  • One pair of generally vertical walls are formed from two webs of material with a gusset insert to form the bottom, in another embodiment.
  • Angle seals extend from each transverse seal to the bottom seal, and each angle seal meets the transverse seals and the bottom seals at a distance from a point where the transverse seals meet the bottom seal, in another embodiment.
  • the preferred embodiment is a bag made to stand on its own when filled, and to a bag with seals disposed in a desirable fashion such that the bag is inexpensive to manufacture, and can have a full length resealable closure. More specifically, the bag has a lower portion that when filled with product has a generally cuboid shape, and an upper portion that lays flat on the top of the cuboid.
  • a cuboid as used herein, includes shapes that are similar to cuboids, but do not need to have generally 90 degree angles between sides, for example the sides may angle outward.
  • the bottom is generally rectangular, and the lower portion has four generally vertical walls with lower edges attached to bottom edges (i.e., the edges of the rectangular bottom). Alternatives provide for non-vertical walls and non-rectangular bottoms.
  • the walls extend upward at generally 90 degree right angles, and the front and back are generally parallel, as are the side when filled.
  • 90 degree angles, as used herein includes angles that appear close to 90 degrees, and serve the purpose of a 90 degree angle.
  • Wall as used herein, includes the sides of the bag.
  • Vertical includes generally perpendicular to the bottom of the bag.
  • corner seals join the front and back walls to side walls.
  • the four corner seals extend to the top of the lower portion, or to the fill level, in the preferred embodiments.
  • the seals can extend higher or lower in alternative embodiments.
  • the corner seals and rectangular bottom help the bag stand on its own when filled, and to have a cuboid shape.
  • Each side wall has a side seal (i.e., a seal on a side, preferably midway front to back), disposed generally vertically, and midway front to back.
  • the side seal extends from the top of the bag towards the bottom, preferable to the lower portion, and more preferably to the bottom.
  • the only seals extending to the top are the side seals, and the top of the bag is a peak formed from the top edges of the front, back and side walls, and extending from side seal to side seal.
  • the upper portion of the bag does not have corner seals, and the peak is that which would be made if the mid-sides of a rectangle (at the top of the side seals) are pulled outward, drawing the front and back toward each other, until they meet and form a peak having a length equal to length of a side wall plus the length of the front or back wall.
  • the lower part of the upper portion retains its rectangular shape, because it is attached to the lower portion, which has the four corner seals, and is filled with product.
  • the upper edge of the lower portion may also include an insert to help retain the rectangular shape where the upper and lower portions meet.
  • Figures 1 and 2 are front and perspective views, respectively, of a bag 100 such as that described above.
  • the lower portion of bag 100 is preferably comprised of a laminate or laminated material (such as some pet food bags are currently made of, e.g.), including a poly layer.
  • the multi-walled construction helps provide support to the bag prevent the bag from dimpling.
  • the poly layer of the laminate extends to, and forms, the upper portion.
  • the flexible poly upper portion is easily folded upon itself to form the top of the cuboid, thus the bag is easily stacked, and the side is displayed.
  • Handles are sealed between the laminate layers, near the top of the lower portion, on the front and back walls. Sealing the handles to bag 100 give good strength to the bag, and allows the user to easily carry the bag.
  • a zipper closure, or other resealable closure, is preferably mounted to extend the entire length of the top peak.
  • FIGS. 3 and 4 schematics showing two perspective views of bag 100 show its various features.
  • Three of the four corner seals 201 can be seen to join or seal adjacent walls, such as side wall 203 and front wall 205. (Seals are indicated as thick lines). It may be seen that corner seals 201 do not extend the entire height of the generally vertical walls. In the preferred embodiment they extend only to the top of the laminated lower portion.
  • Join, or joined with, as used herein includes attaching such that the attached items are not easily removed, for example, by sealing, melting, together, gluing, etc.
  • Corner seal as used herein, includes seals that will form a corner of the bag after it is filled.
  • Two bottom seals 207 are shown, as wells as angle seals 211, which are on the side walls. They will be explained in greater detail below.
  • Angle seals as used herein, includes seals at an angle (other than 90 degrees) to the machine direction.
  • Bottom seal as used herein, includes the seals that will be at the bottom of a bag after it is filled.
  • Side seal 213 is shown, and extends from the top of bag 100 to the bottom in the preferred embodiment. It may be seen that the corner seals on the lower portion and the rectangular bottom helps form the cuboid bag shape, while the lack of corner seals on the upper portion allow the top of the bag to form a peak 214 with a zipper 215 extending the entire length thereof.
  • a tamper proof seal 217 (such as that known in the prior art) is also shown. Other resealable closures may be used, including friction fit, hook and loop, etc. Handles are also shown.
  • Bag 100 may be produced in a "lay flat” fashion, and is relatively inexpensive to make.
  • Bag 100 is preferably formed from 2 continuous films 601 and 602 ( Figure 6 ). The films are generally parallel and follow a parallel film path through the machine. Film 601 forms the front and half of each side, and film 602 forms the back and the other half of each side.
  • Each film includes a laminate portion 603 that extends part way across the film, with one layer being a poly material that extends the entire width of the film.
  • the poly portion can be part of or sealed to the laminate portion.
  • the laminate will form the lower part 501 of bag 100, and the poly portion will form the upper portion 503 of the bag.
  • Transverse seals 201 are formed across the laminate portion only to form the corner seals.
  • Transverse seals 213 are formed across the poly and laminate portions to form the side seals.
  • Angle seals 211 are formed at an angle between side seals 213 and corner seals 201. The angle seals help provide support for the side and bottom.
  • a gusseted insert 610 is sealed to the two laminate portions, on the machine direction edge to form the bottom of the bag.
  • Gusseted insert as used herein, includes an insert that is affixed to one or more films, and the insert includes at least one gusset.
  • Side seals 213 also indicate the end of one bag and the start of the next
  • the seal can include a perforated center portion to help separate adjacent bags from one another, as is known in the art (separate includes physically disjoining or denoting the end of a leading bag and the start of a succeeding bag).
  • Adjacent bags as used herein, includes bags next to one another as they are formed from continuous film or films.
  • a zipper with a tamper proof seals is affixed to the machine direction edge opposite the gusseted insert.
  • the zipper is continuous because the peak extends the length of the side plus the front -- thus there is no portion which cannot have the recloseable seal (which is different from the prior art).
  • Other resealable closures are used in alternative embodiments.
  • Handles are sealed between layers of the laminate (preferably to the poly layer) near the top of the lower portion, which allows the user to easily carry heavy bags.
  • a machine for making the bag 100 described above is a pouch machine 700, and includes seven modules: an input section 1, a resealable closure or zipper sealer station 2, a long sealer module 3, a cross sealer module 4, a cross seal extension module 5, a slider module 6, and a cut-off module 7.
  • Some of the modules, such as 4, 6 and 7, include drawrolls or driven rollers (10, 11 and 12).
  • Input section includes a processing station that receives a film and feeds it to subsequent processing stations, it may include machinery for folding the film.
  • Resealable closure fixture includes a fixture that affixes a resealable closure to a film.
  • Zipper sealer station 2 includes a zipper or resealable closure fixture for apply a zipper or other resealable closure to one machine direction edge of the films.
  • the slider portion of the zipper may be applied at the zipper station or at a distinct slider station.
  • Slider station includes a processing station applies a "slider" onto a pouch, usually in the machine direction.
  • Cut-off station includes a processing station that cuts the film, such as that used to separate adjacent pouches (such as at the side seals).
  • Zipper sealer station includes a processing station that welds or forms a zipper onto a pouch, usually in the machine direction.
  • Resealable closure fixture includes a fixture that affixes a resealable closure to a film, and it may encompass distinct zipper and slider stations.
  • a gusseted insert fixture for sealing a gusseted insert is provided in the preferred embodiment, and may be in long sealer sation 1, or another section of the machine.
  • Long sealer section or station includes a processing station that forms a machine direction seal.
  • Gusseted insert fixture includes a fixture that applies a gusseted insert to one or more films.
  • Sealing section includes one or more sections of a bag machine that includes one or more seal bars or other devices to form a seal on a film.
  • Cross sealer station or module 4 includes corner sealers, for forming the corner seals that extend across only part of the film, and transverse sealers for forming the side seals that also separate adjacent bags. It may also include angle sealers for forming the angle seals, or they may be included in a separate station or module. It may further include a fixture for sealing a handle to the film (or the handle sealing fixture may be in another section).
  • Cross sealer station includes a processing station that forms a cross-seal, such as the seals separating successive pouches.
  • Cross seal extension station includes a processing station that forms cross seals over an extended length.
  • Angle sealers includes seal bars (or other seal-creating devices) disposed to create a seal angled (other than 90 degree) relative to the machine direction.
  • Corner sealers includes seal bars (or other seal-creating devices) disposed to create a seal that will form a corner of the bag after it is filled.
  • Transverse sealers includes seal bars (or other seal-creating devices) that apply a transverse seal.
  • a machine capable of having the appropriate sealing and other stations to implement the present invention is one such as that described in detail in United States Patent Application 20020155936, Wied et al . (and has as a co-inventor the inventor of the present invention), filed April 23, 2001, and entitled Modular Pouch Machine.
  • Alternatives provide for the invention to implemented with other systems, that might or might not be modular.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
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Claims (16)

  1. Sac (100) comprenant :
    une partie inférieure (501) ayant :
    un fond généralement rectangulaire ayant des premier, deuxième, troisième et quatrième bords de fond ;
    une paroi avant généralement rectangulaire, ayant un bord inférieur avant relié au premier bord de fond ;
    une paroi arrière généralement rectangulaire, ayant un bord inférieur arrière relié au troisième bord de fond ;
    une paroi latérale gauche généralement rectangulaire, ayant un bord inférieur gauche relié au quatrième bord de fond ;
    une paroi latérale droite généralement rectangulaire, ayant un bord inférieur droit relié au deuxième bord de fond ; et
    une partie supérieure, reliée à la partie inférieure, ayant une crête supérieure (214) dans une configuration fermée, et caractérisé en ce que ladite crête supérieure (214) est formée à partir des bords supérieurs des parois avant, arrière et latérales, en tirant les bords supérieurs des parois latérales l'un vers l'autre de telle sorte que ladite crête (214) ait une longueur égale à la longueur de la paroi avant ou arrière plus la longueur d'une paroi latérale, et caractérisé par la présence d'une fermeture refermable sur la crête supérieure, ladite fermeture s'étendant sur la longueur tout entière de celle-ci.
  2. Sac (100) selon la revendication 1, comprenant en outre :
    un premier joint d'angle généralement vertical (201) reliant la paroi avant et la paroi latérale gauche, dans lequel le premier joint d'angle (201) ne s'étend pas sur la hauteur tout entière des parois avant et latérale gauche ;
    un deuxième joint d'angle généralement vertical (201) reliant la paroi avant et la paroi latérale droite, dans lequel le deuxième joint d'angle (201) ne s'étend pas sur la hauteur tout entière des parois avant et latérale droite ;
    un troisième joint d'angle généralement vertical (201) reliant la paroi arrière et la paroi latérale droite, dans lequel le troisième joint d'angle (201) ne s'étend pas sur la hauteur tout entière des parois arrière et latérale droite ; et
    un quatrième joint d'angle généralement vertical (201) reliant la paroi arrière et la paroi latérale gauche, dans lequel le quatrième joint d'angle (201) ne s'étend pas sur la hauteur tout entière des parois arrière et latérale gauche.
  3. Sac (100) selon la revendication 1, dans lequel les parois latérales droite et gauche ont chacune un joint latéral généralement vertical (213) s'étendant depuis le dessus du sac vers le fond.
  4. Sac (100) selon l'une quelconque des revendications précédentes, dans lequel le fond est une pièce rapportée à soufflets scellée aux parois avant et arrière.
  5. Sac (100) selon l'une quelconque des revendications précédentes, dans lequel la partie inférieure comprend un matériau stratifié.
  6. Sac (100) selon l'une quelconque des revendications précédentes, comprenant en outre une poignée scellée entre des couches du stratifié, à proximité du dessus de la partie inférieure (501).
  7. Sac (100) selon l'une quelconque des revendications précédentes, dans lequel, lorsqu'il est rempli de produits jusqu'à un niveau plein, la forme de la partie pleine est généralement cuboïde.
  8. Sac (100) selon la revendication 7, dans lequel lorsque le sac (100) est rempli la partie supérieure repose à plat pour former un dessus du cuboïde.
  9. Sac (100) selon l'une quelconque des revendications précédentes, dans lequel la fermeture est un joint inviolable.
  10. Sac (100) selon l'une quelconque des revendications précédentes, dans lequel le dessus du sac est une crête formée au moins partiellement d'un bord supérieur sur chacune des parois avant et arrière.
  11. Procédé de fabrication d'un sac (100), comprenant :
    la formation d'une partie inférieure ayant un fond avec des parois avant, arrière et latérales, chacune étant adjacente à deux des autres parois et étant fixée au fond sur les bords inférieurs de celles-ci ;
    la formation d'une partie supérieure reliée à la partie inférieure, ayant une crête supérieure (214) dans une configuration fermée ;
    la formation de ladite crête supérieure (214) à partir des bords supérieurs des parois avant, arrière et latérales, dans lequel les bords supérieurs des parois latérales sont tirés l'un vers l'autre pour former ladite crête (214) ayant une longueur égale à la longueur d'une paroi latérale plus la longueur de la paroi avant ou de la paroi arrière ; et
    la fixation d'une fermeture refermable le long de la longueur tout entière de la crête supérieure (214).
  12. Procédé selon la revendication 11, dans lequel la formation d'une partie inférieure comprend le scellage des parois adjacentes pour former quatre joints d'angle (201) qui ne s'étendent pas sur la hauteur tout entière des parois adjacentes.
  13. Procédé selon l'une quelconque des revendications 11 ou 12, comprenant en outre la formation, sur deux des quatre parois, de joints généralement verticaux s'étendant depuis le dessus du sac (100) vers le fond.
  14. Procédé selon l'une quelconque des revendications 11 à 13, comprenant en outre la formation d'une pluralité de sacs (100) par répétition du procédé.
  15. Procédé selon l'une quelconque des revendications 11 à 14, dans lequel la formation du fond comprend le scellage d'une pièce rapportée à soufflets sur un premier (601) et un second (602) films.
  16. Procédé selon l'une quelconque des revendications 11 à 15, comprenant en outre le scellage d'une poignée sur la partie inférieure.
EP03812879A 2002-12-09 2003-12-03 Sac refermable Expired - Lifetime EP1590253B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US314912 1981-10-26
US393491 1989-08-14
US10/314,912 US20040109616A1 (en) 2002-12-09 2002-12-09 Recloseable bag
US10/393,491 US20040109617A1 (en) 2002-12-09 2003-03-20 Recloseable bag
PCT/US2003/039035 WO2004052729A2 (fr) 2002-12-09 2003-12-03 Sac refermable

Publications (3)

Publication Number Publication Date
EP1590253A2 EP1590253A2 (fr) 2005-11-02
EP1590253A4 EP1590253A4 (fr) 2006-05-17
EP1590253B1 true EP1590253B1 (fr) 2008-11-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03812879A Expired - Lifetime EP1590253B1 (fr) 2002-12-09 2003-12-03 Sac refermable

Country Status (5)

Country Link
US (2) US20060078233A1 (fr)
EP (1) EP1590253B1 (fr)
AU (1) AU2003296365A1 (fr)
CA (1) CA2509048C (fr)
WO (1) WO2004052729A2 (fr)

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EP1854732A1 (fr) * 2006-05-12 2007-11-14 Alcan Technology & Management Ltd. Sachet d'emballage
US9555931B2 (en) * 2006-06-07 2017-01-31 Reynolds Consumer Products LLC Slider bag with handle below the zipper track
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WO2004052729A2 (fr) 2004-06-24
WO2004052729A3 (fr) 2004-11-25
EP1590253A2 (fr) 2005-11-02
EP1590253A4 (fr) 2006-05-17
US20060078233A1 (en) 2006-04-13
CA2509048C (fr) 2010-09-21
US20070230833A1 (en) 2007-10-04
CA2509048A1 (fr) 2004-06-24
AU2003296365A8 (en) 2004-06-30
AU2003296365A1 (en) 2004-06-30

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