WO2004052729A2 - Sac refermable - Google Patents

Sac refermable Download PDF

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Publication number
WO2004052729A2
WO2004052729A2 PCT/US2003/039035 US0339035W WO2004052729A2 WO 2004052729 A2 WO2004052729 A2 WO 2004052729A2 US 0339035 W US0339035 W US 0339035W WO 2004052729 A2 WO2004052729 A2 WO 2004052729A2
Authority
WO
WIPO (PCT)
Prior art keywords
bag
seals
walls
comer
seal
Prior art date
Application number
PCT/US2003/039035
Other languages
English (en)
Other versions
WO2004052729A3 (fr
Inventor
Jerry Winiecki
Original Assignee
Cmd Corporation
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 Corporation filed Critical Cmd Corporation
Priority to CA2509048A priority Critical patent/CA2509048C/fr
Priority to DE60324600T priority patent/DE60324600D1/de
Priority to AU2003296365A priority patent/AU2003296365A1/en
Priority to EP03812879A priority patent/EP1590253B1/fr
Publication of WO2004052729A2 publication Critical patent/WO2004052729A2/fr
Publication of WO2004052729A3 publication Critical patent/WO2004052729A3/fr

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
    • 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.
  • 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
  • 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 pet food bag with a resealable closure (a closure that may be resealed by the consumer, such as a zipper, hook and loop, friction fit, etc.), and/or has a tamper-proof seal (a seal that can be visually inspected to determine if it has been opened previously).
  • 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.
  • Patent D444,948 to Buchanan et al. That bag has a rectangular bottom and a cuboid shape (when filled). Even when filled the top can lay flat on the top of the cuboid, for ease of stacking. The side of the bag is presented to the customer when stacked. A handle is attached, and a hook and loop top seal allows for resealing. While this bag has advantages over the prior art it would be costly to manufacture, and the top seal does not extend across the entire top — thus the entire top isn't resealable.
  • a bag comprises a lower portion and an upper portion.
  • the lower portion has a generally rectangular bottom with first, second, third and fourth bottom edges. It also has a generally rectangular front, back left and right walls, each having a lower edge joined with the a bottom edge.
  • the upper portion is joined to the lower portion, and has a zipper closure at a top thereof.
  • a bag includes the upper portion is joined to the lower portion, and has a top peak with a resealable closure that extends the length thereof.
  • a bag includes a lower portion and ab upper portion joined to the lower portion.
  • the lower portion has a generally rectangular bottom with first and second pairs of generally parallel sides. Pairs generally vertical walls are attached at lower edges thereof to the pairs of generally parallel sides.
  • a plurality of bags are formed from two webs moving in a machine direction.
  • Each bag is formed with transverse seals extending the width of the webs.
  • Each bag has a resealable closure mounted on a first machine direction edge of the bag, and a gusseted insert and a bottom seal on the second machine direction edge of the bag.
  • a plurality of corner seals art disposed between the transverse seals, and extend a portion of the way from the from the bottom seal toward the resealable closure.
  • a machine for making bags from two films includes an input section, and a sealing section.
  • Each section has at least one driven roller that contacts the film as it follows a film path and moves in a machine direction.
  • the sealing section is downstream of the input section, and has two transverse sealers, spaced in the machine direction, such that each bag is formed with spaced transverse seals extending the width of the webs.
  • It also has a resealable closure fixture, mounted on a first machine direction edge of the bag, and a gusseted insert fixture, on a second machine direction edge of the bag, and a plurality of corner sealers, disposed between the transverse sealers, and extending a portion of the way from the from the gusseted insert fixture toward the resealable closure fixture.
  • a method of making a bag includes fo ⁇ ning a lower portion with a bottom and forming an upper portion, joined to the lower portion, and having a top, and affixing a zipper closure to the top.
  • a method of making a bag includes forming a lower portion having a bottom and two pair of generally parallel sides walls, each side wall being adjacent to two of the other side walls and each attached on lower edges thereof to the bottom. Also, four generally vertical corner seals are formed, and each joins one of the first pair of generally vertical walls to one of the second pair of generally vertical walls. The corner seals do not extend the entire height of the generally vertical walls. An upper portion is formed and joined to the lower portion.
  • a method of forming a plurality of bags from first and second webs moving in a machine direction comprises forming spaced transverse seals extending the width of the webs, affixing a resealable closure mounted on a first machine direction edge of the bag, affixing a gusseted insert to a second machine direction edge of the bag, and forming corner seals between the transverse seals, that extend only a portion of the way from the from the bottom seal toward the resealable closure.
  • a method of making a bag includes forming a lower portion to have a bottom with four side walls attached on lower edges thereof to the bottom, and forming an upper portion, joined to the lower portion, and having a top peak with a resealable closure affixed along the entire length of the top peak.
  • 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.
  • 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 a 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.
  • Figure 1 is photograph from a front view of a bag in accordance with the invention.
  • Figure 2 is photograph from a perspective view of a bag in accordance with the invention.
  • Figure 3 is schematic of a perspective of a bag in accordance with the invention.
  • Figure 4 is schematic of a perspective of a bag in accordance with the invention.
  • Figure 5 is schematic of a bag formed in accordance with the invention.
  • Figure 6 is schematic of bags being formed in accordance with the invention.
  • Figure 7 is schematic of bag machine in accordance with the invention.
  • the present invention will be illustrated with reference to it should be understood at the outset that the invention is described with respect to a preferred bag with preferred seals and manufactured in a preferred manner, the invention can also be implemented with other bags, having other shapes, made with other seals, and manufactured in other ways.
  • 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 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 includes angles that appear close to 90 degrees, and serve the purpose of a 90 degree angle.
  • Wall 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 j 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.
  • comer 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 comer 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. Comer seal, as used herein, includes seals that will form a comer 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 comer seals on the lower portion and the rectangular bottom helps form the cuboid bag shape, while the lack of comer 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.
  • FIG. 5 a schematic of bag 100, as produced is shown. Also, Figure 6 shows multiple bags 100 in production. Bag 100 may be produced in a
  • 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 fo ⁇ ned across the laminate portion only to form the comer 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 comer 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 inse fcr
  • 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 or 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 comer sealers, for forming the comer 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 degrees) relative to the machine direction.
  • Comer sealers includes seal bars (or other seal- creating devices) disposed to create a seal that will form a comer 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, hereby incorporated by reference.
  • Alternatives provide for the invention to implemented with other systems, that might or might not be modular.

Abstract

L'invention concerne un sac, un procédé de production et une machine permettant la production de ce sac. Ce sac présente une partie supérieure et une partie inférieure. La partie inférieure comprend un fond sensiblement rectangulaire comportant un premier, un second, un troisième et un quatrième bord. Elle comprend en outre des parois avant, arrière, gauche et droite sensiblement rectangulaires, possédant chacune un bord inférieur assemblé à un des bords du fond. La partie supérieure est assemblée à la partie inférieure. Ce sac comprend une ou plusieurs fermetures à glissière, un sommet en pointe pourvu d'une fermeture refermable s'étendant sur sa longueur, quatre joints d'angle sensiblement verticaux s'étendant sur une partie de la hauteur des parois, et un système de fermeture refermable fixé sur toute la longueur du sommet.
PCT/US2003/039035 2002-12-09 2003-12-03 Sac refermable WO2004052729A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2509048A CA2509048C (fr) 2002-12-09 2003-12-03 Sac refermable
DE60324600T DE60324600D1 (de) 2002-12-09 2003-12-03 Wiederverschliessbarer beutel
AU2003296365A AU2003296365A1 (en) 2002-12-09 2003-12-03 Recloseable bag
EP03812879A EP1590253B1 (fr) 2002-12-09 2003-12-03 Sac refermable

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/314,912 US20040109616A1 (en) 2002-12-09 2002-12-09 Recloseable bag
US10/314,912 2002-12-09
US10/393,491 US20040109617A1 (en) 2002-12-09 2003-03-20 Recloseable bag
US10/393,491 2003-03-20

Publications (2)

Publication Number Publication Date
WO2004052729A2 true WO2004052729A2 (fr) 2004-06-24
WO2004052729A3 WO2004052729A3 (fr) 2004-11-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/039035 WO2004052729A2 (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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WO2008049654A1 (fr) * 2006-10-26 2008-05-02 Henkel Ag & Co. Kgaa Sachet avec aide à l'ouverture et dispositif porteur
EP3208213A1 (fr) * 2014-07-02 2017-08-23 Kiefel GmbH Installation de fabrication d'un medicament et procede de fonctionnement d'une telle installation
WO2018109539A1 (fr) * 2016-12-14 2018-06-21 Tan Ah Moi Sac en plastique autoportant et son procédé de fabrication
EP3982783A4 (fr) * 2019-06-17 2022-08-17 Netpak Ambalaj Sanayi Ticaret Anonim Sirketi Sac de transport doté d'un couvercle et de poignées indépendantes reliées par soudage par ultrasons ou par un autre procédé de fusion et son procédé de production

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EP1854732A1 (fr) * 2006-05-12 2007-11-14 Alcan Technology & Management Ltd. Sachet d'emballage
MX2008015453A (es) * 2006-06-07 2009-01-13 Pactiv Corp Bolsa deslizante con asidero debajo del sujetador.
US8915372B2 (en) * 2006-08-11 2014-12-23 Gregorio Lim Tan Self opening bag pack, apparatus and method of making same
US10814577B2 (en) * 2006-08-11 2020-10-27 Gregorio Lim Tan Self opening wide mouth carryout bag pack, apparatus and method of making same
US8210746B2 (en) * 2007-08-02 2012-07-03 The Procter & Gamble Company Bag and article of manufacture
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AU2003296365A8 (en) 2004-06-30
US20060078233A1 (en) 2006-04-13
CA2509048A1 (fr) 2004-06-24
AU2003296365A1 (en) 2004-06-30
EP1590253A4 (fr) 2006-05-17
US20070230833A1 (en) 2007-10-04
WO2004052729A3 (fr) 2004-11-25
EP1590253B1 (fr) 2008-11-05
EP1590253A2 (fr) 2005-11-02
CA2509048C (fr) 2010-09-21

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