US20040031244A1 - Multi-compartment flexible package - Google Patents

Multi-compartment flexible package Download PDF

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Publication number
US20040031244A1
US20040031244A1 US10456971 US45697103A US2004031244A1 US 20040031244 A1 US20040031244 A1 US 20040031244A1 US 10456971 US10456971 US 10456971 US 45697103 A US45697103 A US 45697103A US 2004031244 A1 US2004031244 A1 US 2004031244A1
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panel
compartment
package
internal
multi
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Abandoned
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US10456971
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Mark Steele
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Mark Steele
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    • 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
    • B65D31/00Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/02Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls
    • 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
    • B65D31/00Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/12Bags or like containers made of paper and having structural provision for thickness of contents with two or more compartments
    • 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
    • B65D33/007Details of, or accessories for, sacks or bags for facilitating the separation of the two walls, e.g. walls of inequal height, tabs; for maintaining the mouth of the sack or bag open
    • 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
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00Flexible containers made from webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00Flexible containers made from webs
    • B31B2155/002Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00Shape of flexible containers
    • B31B2160/10Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00Shape of flexible containers
    • B31B2160/20Shape of flexible containers with structural provision for thickness of contents
    • 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
    • B65D75/008Standing pouches, i.e. "Standbeutel"

Abstract

A flexible package having a main package compartment and a segregated internal compartment package. The main package generally includes a plurality of outer panel portions. These panel portions can include a front panel portion, a back panel portion, and a bottom panel portion. The formation of these panels into the main package defines an internal cavity for holding material contents. Any of the panels can be gusseted with the processes and techniques known to one skilled in the art. The main package includes the segregated internal compartment package, wherein the compartment package can include at least one internal panel portion having a transverse edge portion adapted joined to an inner surface of one of the main package panels, i.e. the front or back panels, within the internal cavity to define a second compartment cavity distinct from the internal cavity of the main package. At least two separate openings are available into the package to enable selectively separate access into the internal cavity of the main package and the compartment cavity of the segregated internal compartment package.

Description

    RELATED APPLICATIONS
  • The present invention claims the benefit of U.S. Provisional Application No. 60/386,798 filed Jun. 6, 2002 and entitled “MULTI-COMPARTMENT SEGREGATING FLEXIBLE PACKAGE,” which is hereby incorporated in its entirety by reference.[0001]
  • FIELD OF THE INVENTION
  • The present invention relates generally to flexible packaging and, more particularly, to flexible packaging having at least one segregated internal compartment designed for selective compartmental use. [0002]
  • BACKGROUND OF THE INVENTION
  • Conventional flexible packaging does not generally include compartments within the internal cavity of the package. Those packages that do, merely provide for a positioned wall down a section of the internal cavity of the main packaging such that a division is merely created within said internal cavity. Distinct and selectively usable compartments within the cavity are not provided for in these conventional package designs. [0003]
  • For instance, U.S. Pat. Nos. 4,201,031, 4,993,844, 5,335,478, and 5,409,116 disclose packages having a divider panel disposed between the two main panels to create a partition. However, since the partition panel spans the full longitudinal distance and is equal in width to the two main panels, the two compartments are accordingly of equal size. Consequently, such partitioned package configurations are not ideal for selective applications and uses where one of the segregated compartments is not required to be identically volumetrically sized with respect to the other. Further, such designs are not ideally compatible with flexible packaging designs employing side or bottom gusset panels. Since the edges of the partition panel are bonded intermediate the edges of the main panel portions, allowing the full length gusseted panels would be rendered unusable as expansion and contraction at the gusset would be restricted by the intermediately bonded partition panel. [0004]
  • Other conventional techniques include creating multi-compartment packages by heat sealing or otherwise bonding two parallel panels proximate the middle portion of the panels such that a divider strip is established. Such designs are demonstrated in U.S. Pat. No. 3,390,507, U.S. Patent Application No. 2002/0067865, and E.P. Patent Publication 594,449A1. The formation and design of these conventional packages merely creates two adjacent packaging portions of substantially equal size. Again, gusseted features are unacceptably limited. [0005]
  • As a result, there is a need for a flexible package that substantially solves the above-referenced problems with conventional package designs, configurations, and manufacturing methods. [0006]
  • SUMMARY OF THE INVENTION
  • The present invention solves many of the problems that plague conventional flexible packages and packaging methods. Various embodiments of the present invention are directed to a main package and a segregated internal compartment package. The main package generally includes a plurality of outer panel portions. These panel portions can include a front panel portion, a back panel portion, and a bottom panel portion. In addition, the main package can include a first side panel portion, and a second side panel portion. The formation of these panels into the main package defines an internal cavity for holding material contents. Any of the panels can be gusseted with the processes and techniques known to one skilled in the art. The main package includes the segregated internal compartment package, wherein the compartment package can include at least one internal panel portion having a transverse bottom edge portion joined to an inner surface of one of the main package panels within the internal cavity to define a second compartment cavity distinct from the internal cavity of the main package. Further, the present invention can include at least two separate openings into the package to enable selectively separate access into the internal cavity of the main package and the second compartment cavity of the segregated internal compartment package. [0007]
  • In one embodiment, the internal compartment is some size generally smaller than the vertical or longitudinal length of the front and back panels, of varying available width. The internal panel portion can be of a polyethylene, or like plastic or plastic laminate, and is uniquely sealed within the inner cavity at an inner surface of the front or back panels, within the inner cavity. While the outside of the package may look much like any stand up flexible package, there are nonetheless dual top accesses that can be created by a vertical/longitudinal seal of the internal panel portion to clearly identify the two separate cavities.[0008]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a front view of a multi-compartment package in accordance with an embodiment of the present invention. [0009]
  • FIG. 2 is a side section view of a multi-compartment package in accordance with an embodiment of the present invention. [0010]
  • FIG. 2[0011] a is a perspective view of a multi-compartment package in accordance with an embodiment of the present invention.
  • FIG. 2[0012] b is a perspective view of a multi-compartment package having side panels in accordance with an embodiment of the present invention.
  • FIG. 3 is a front view of a multi-compartment package having a longitudinal seal in accordance with an embodiment of the present invention. [0013]
  • FIG. 3[0014] a is a front view of a multi-compartment package having a longitudinal seal in accordance with an embodiment of the present invention.
  • FIG. 4 is a side section view of the multi-compartment package of FIG. 3. [0015]
  • FIG. 5 is a top view of the multi-compartment package of FIG. 3. [0016]
  • FIG. 5[0017] a is a top view of the multi-compartment package of FIG. 3a.
  • FIG. 5[0018] b is a perspective view of a multi-compartment package having a longitudinal seal and side panels in accordance with an embodiment of the present invention.
  • FIG. 5[0019] c is a perspective view of a multi-compartment package having a longitudinal seal in accordance with an embodiment of the present invention.
  • FIG. 5[0020] d is a perspective view of a multi-compartment package having a longitudinal seal in accordance with an embodiment of the present invention.
  • FIG. 5[0021] e is a front view of a multi-compartment package having a longitudinal seal and notch in accordance with an embodiment of the present invention.
  • FIG. 6 is a front view of a multi-compartment package having a temporary seal in accordance with an embodiment of the present invention. [0022]
  • FIG. 7 is a side section view of the multi-compartment package of FIG. 6. [0023]
  • FIG. 8 is a side view of feeding and aligning stations and methods used in forming multi-compartment packages in accordance with embodiments of the present invention. [0024]
  • FIG. 9 is a top view of sealing, cooling, and cutting stations and methods used in forming multi-compartment packages in accordance with embodiments of the present invention.[0025]
  • DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
  • Referring to FIGS. [0026] 1-9, a flexible package 10 in accordance with the present invention, and the manufacturing steps for forming said flexible package 10, are shown. The package 10 generally includes a main package 12 and a segregated internal compartment package 14. The main package 12 generally includes a front panel portion 16, a back panel portion 18, and a bottom panel portion 20. Further, a top panel portion 21 and/or at least one side panel portion 22 can be included in various embodiments, as demonstrated with side panels 22 in FIGS. 2b and 5 b. Panel portions 16-20 can be joined to form or define an inner cavity 26 of the main package 10 for holding, transporting, or otherwise containing material contents. At least one of the front 16 or back 18 panel portions includes a main sealant surface 27 for bondable joining with selectively positioned portions of the internal compartment package 14. The front panel portion 16 can include front longitudinal edges 17 a, 17 b and the back panel portion 18 can include back longitudinal edges 19. The cross-hatching in the figures can be utilized to generally denote the seal lines which are further described herein.
  • The segregated internal compartment package [0027] 14 generally includes at least one internal compartment panel portion 24, wherein the compartment panel portion 24 is peripherally joined to the inner surface of at least one of the main package 10 panel portions to create a second compartment cavity 28. The at least one internal compartment panel 24 includes an internal panel sealant surface 30, longitudinal compartment panel edges 32 a, 32 b and transverse compartment panel edges 34.
  • The package portions [0028] 12-22 are generally constructed of flexible sheet material such as polyethylene, polyester, metal foil, polypropylene, or polyethylenes laminated with other materials such as nylon, polyester, and like films. To provide for higher barriers, embodiments can use combination layers of said materials and material of the like. Generally, the confronting or joinable materials of the main package 12 and the internal compartment package 14 must have acceptable sealing characteristics for bonding to the respective target material. For instance, the sealant surface 30 of the internal panel 24 is constructed of a plastic web of polyethylene, or a material with like characteristics and heat bonding qualities for joining to the target main sealant surface 27 of one of the main package panels, such as the front 16 or back 18 panel portions. One skilled in the art will understand that a myriad of materials and material laminates are available for selective use for the main sealant surface 27 and the internal sealant surface 30 to facilitate the bonding attachment described herein. In one embodiment, at least one of the sealant surfaces 27, 30 will comprise “contaminants” that permit a varying level of bonding, wherein the level of bondable attachment is dependent on the heat applied from a corresponding heat sealing bar or other device. Higher temperatures will create “destructive”, i.e., permanent, bonds while lower temperatures will create a more temporary bond for selective disengagement. Such bonding techniques can be applied at any sealable surface or region of the main package 12 or the internal compartment package 14 to create the desired level of bonding.
  • Preferably, the package of the present invention is to be formed into a stand-up pouch, but it could be a three-side-seal pouch, a pouch that displays lying down, or other known pouch or packaging designs and configurations. The internal panel or web [0029] 20 can be of the same width and height as the back and/or front panels, or it can be some size smaller, depending on the compartmental needs of the manufacturer or end user. Regardless, and unlike conventional techniques, the transverse compartment panel edge 24 of the internal panel 24 will not be bound to both the front and back panel portions. Instead, the edges 32 of the internal compartment panel 24 will be bonded intermediate the front 16 and back panels 18 and the transverse edge 34 will be bonded to only one of the front 16 or back 18 panels some distance intermediate the bottom and top edges of said one of the front 16 and back 18 panels. In embodiments including the at least one side panel 22, the longitudinal edges 32 a, 32 b will also be bonded to the same one of the front 16 or back 18 panels at respective edges 17, 19. Bonding descriptions of the internal compartment panel 24 to various panel designations herein will generally require particular panel portion descriptions for ease of explanation, i.e., panels 16 and 18, but it must be noted that each of the panel portions 16, 18 are interchangeably capable of providing the inner target surface for the internal panel 24 attachment, and the transverse edge 34 in particular. For instance, specific embodiments will require attachment or bonding of the internal panel 24 to the inner surface 27 of the back panel 18 where the outside surface of the front panel 16 includes graphical indicia. Attachment of the internal panel 24 to the back panel 18 will protect the indicia on the front panel 16 as specific sealing processes may require sealing bars to contact the outside of the package to bond the internal panel 24 in place.
  • In FIGS. [0030] 1-2 a, one embodiment of the package 10 of the present invention is shown. In this embodiment, the internal compartment package 14 is defined by bonding the internal sealant surface 30 at the transverse edge 34 of the at least one internal compartment panel portion 24 to the main sealant surface 27 of the front panel 16, with the back panel 18 being free from bonding contact with the transverse edge 34. Again, the orientation of the panels 16, 18 in relation to the attachment of the internal panel portion 24 is merely for demonstrative purposes and can be interchangeable. Further, the bottom panel 20, or the bottom panel portion 20 defined by joining the ends of the front 16 and back panel 18 portions, is gusseted to create a bottom gusseted panel portion 20 g. For ease of explanation and differentiation, gusseted panels are denoted herein with a subscript “g” character. As best demonstrated in FIGS. 1 and 2a, the internal panel portion 24 spans substantially the full width of the front panel 16 but is closeably sealed some distances short of the complete longitudinal length of the front panel 16. In this embodiment, the longitudinal edges 32 a, 32 b of the internal panel portion 24 are substantially and correspondingly matched and bonded to the longitudinal edges 17 a, 17 b of the front panel 16 and the bottom transverse compartment panel edge 34 of the internal panel portion 24 is bonded across the front panel 16 some distance above the bottom panel portion 20 g. As such, the transverse edge 34 of the internal panel 24 is attached at a transverse seal 36, transverse to the longitudinal edges 17 a, 17 b of the front panel portion 16 and the longitudinal edges 32 a, 32 b of the internal panel 24 itself. To prevent the internal panel 24, and the transverse edge 34 in particular, from sealing to the back panel 18 during formation and sealing at the transverse seal 36, a barrier material 40 such as Teflon, Teflon coated materials, or materials of like heat barrier qualities and characteristics can be selectively disposed between the back panel 18 and the internal panel 24 proximate the line of the transverse edge 34. During formation of the package 10, the longitudinal edges 32 a, 32 b of the internal panel 24 are bonded intermediate the edge portions 17-19 of the front 16 and back panel 18. The described attachment of the internal panel portion 24 creates the compartment cavity 28, wherein the capacity or volumetric limitations of the compartment cavity 28 are measurably smaller than that of the inner cavity 26 of the main package 10.
  • In FIGS. [0031] 3-5 e, another embodiment of the package 10 of the present invention is shown. In this embodiment, the internal compartment package 14 is also defined by bonding the internal sealant surface 30 at the transverse edge 34 of the at least one internal compartment panel portion 24 to the main sealant surface 27 of the front panel 16, with the back panel 18 being free from bonding contact with the transverse edge 34 of the internal panel 24. Further, the bottom panel 20, or the bottom panel portion 20 defined by joining the ends of the front 16 and back panel 18 portions, is gusseted to create a bottom gusseted panel portion 20 g. As best demonstrated in FIGS. 3 and 3a, the internal panel portion 24 substantially spans the entire width of the front panel 16 and is closeably sealed some distance short of the complete longitudinal length of the front panel 16 at the transverse edge 34 and seal 36. However, while the longitudinal edges 17 a, 17 b of the front panel 16 are bonded with the longitudinal edges 32 a, 32 b of the internal panel 24, respectively, an intermediate longitudinal seal 38 is provided at some location intermediate the edges 32 a, 32 b, as demonstrated in FIGS. 3-3 a, and 5 b-5 d. The bonding at the longitudinal seal 38 traverses from the top of the package 10 down to the transverse edge 34 and seal 36. As such, this creation of the longitudinal seal 38 between or intermediate the longitudinal edges 17 a, 17 b, 32 a, 32 b creates an internal compartment 14 measurably smaller in width than the overall width of the front panel 16 and the main package 10.
  • While the transverse seal [0032] 36 can create a continuous bond between the front 16 panel and the internal panel 24 along the transverse edge 34, attachment of the back panel 18 to the transverse edge 34 and seal 36 is preferably avoided to maintain the capacity and configuration of the inner cavity 26. Since seal bars and other bonding mechanisms and techniques known to one skilled in the art are easily utilized and often implement a seal bar across the entire width of the package 10 at the line defined by the transverse edge 34, it may be necessary to include a material barrier 40 protection along the line of the transverse edge 34 extending from the longitudinal seal 38 to the longitudinal edges 17 b, 32 b. Like the previous embodiment, a barrier material 40 such as Teflon, Teflon coated materials, or materials of like heat barrier qualities and characteristics can be selectively disposed between the back panel 18 and the front panel 16 along the width of the panels. This barrier 40 will prevent bonding of the back panel 18 to the transverse edge 34 along the seal 36 between the edges 17 a, 32 a and the edges 17 b, 32 b, thus also providing a barrier along the seal 36 between the longitudinal seal 28 and the edges 17 b, 32 b. At the same time, a bond is created between the front 16 panel and the internal panel 24 along the length of the transverse seal 36. Various applications of such a barrier material to a selected portion of a package panel known to one skilled in the art can be employed without deviating from the spirit and scope of the present invention. The described attachment of the internal panel portion 24 creates the compartment cavity 28, wherein the capacity or volumetric limitations of the compartment cavity 28 are measurably smaller than that of the inner cavity 26 of the main package 10. The boundaries of the compartment 14 and compartment cavity 28 are generally defined in this embodiment by the u-shaped sealed continuity of the longitudinal edge 32 a, the transverse edge 34, and the longitudinal seal 38.
  • With such an embodiment, it may be necessary to additionally bond at least a portion of the top region of the internal panel [0033] 24 to the top portion of the front panel 16, distal the transverse seal 36, as shown in FIGS. 5-5 a, and 5 d. In FIG. 5, this top portion of the internal panel 24 is sealed to the top portion of the front panel 16 only from the longitudinal seal 38 to the longitudinal edges 17 b, 32 b. Accordingly, the openings into the internal compartment cavity 28 and the main inner cavity 26 are distinctly defined. In FIGS. 5a and 5 d, the top portion of the internal panel 24 confronting the top portion of the back panel 18 is sealed between the longitudinal edges 17 a, 32 a and the longitudinal seal 38, and the top portion of the internal panel 24 confronting the top portion of the front panel 16 is still sealed to the top portion of the front panel 16 from the longitudinal seal 38 to the longitudinal edges 17 b, 32 b. Each of the seals defined herein and shown in FIGS. 5-5 a, and 5 d can be temporary or permanent and can be created using materials, techniques, and methods known to one skilled in the art. These embodiments create more defined and distinct openings into the compartment cavity 28 and the inner cavity 26 such that filling of each of said cavities 26, 28 with material and/or fluid contents is easily accomplished by various packagers using known filling techniques and machines. Upon filling of either or both of the cavities 26, 28, the top portions of the front 16 and back 18 panels can be sealed together.
  • Various embodiments of the present invention can include a temporary seal [0034] 42 bond along any of the edges or seals of the internal panel 24. Preferably, the temporary seal 42 is provided along the transverse edge 34 of the internal panel 24 to create at least a portion of the transverse seal 36, as shown in FIGS. 6-7. In one embodiment of the temporary seal 42, an adhesive, tape, or other selectively engageable material or substance comprises at least a portion of the transverse seal 36 such that when it is closeably engaged to temporarily bond the transverse edge 34 of the internal panel 24 to the inner surface of one panel of the main package 10, i.e., the sealant surface 27 of the front panel 16, the compartment cavity 28 is segregated from the inner cavity 26. However, when the temporary seal 42 is opened or disengaged, the compartment cavity 28 is brought into fluid communication with the inner cavity 26. Such temporary seal embodiments can be utilized to isolate material contents of the two cavities 26, 28 until such time as it is needed and/or desirable. Medical materials and contents, food, liquids, solids, and a myriad of other materials and substances can be segregated for a desired period of time or use and then selectively brought into communication with such an embodiment. Further, communication between the cavities 26, 28 can be closed by engaging or actuating the temporary seal 42 to again provide desired segregation in those embodiments using adhesives, tapes, and the like.
  • In one embodiment, the temporary seal [0035] 42 will include a compatible tape material such that the temporary bond is broken upon sufficient pressure by the end user on the internal compartment 14 and/or main package 10 structures. In another embodiment, the temporary seal 42 is created by heat sealing the transverse edge 34 of the internal panel 24 to the front 16 or back panel 18 portions in such a manner as to not create a permanent bond. As described herein, this temporary seal 42 generated from a heat sealing technique can comprise selectively utilizing materials with known contaminant characteristics such that a relatively low heat application along the seal 42 provides temporary sealing and avoids a destructive or permanent seal. Various selective and temporary bonding techniques known to one skilled in the art can be employed to implement and create the temporary seal 42 without deviating from the spirit and scope of the present invention. Further, the temporary seal 42 techniques and methods can be included along the longitudinal seal 38 rather than the transverse edge 34 in those packages 10 implementing the compartment package 14 of FIGS. 3-5 d.
  • Various embodiments can further include a notch [0036] 44, as shown in FIG. 5e. This notch 44 is preferably located proximate the longitudinal seal 38 at the top of the package 10 and traverses down into at least the internal panel 24 and one of the front 16 or back 18 panels. A slit can be further provided transversely running into the notch 44 to facilitate selective tearing. This notch 44 permits the end user or packager to selectively open one or both of the compartments 12, 14 to gain access into the corresponding cavities 26, 28. Distinct access is thus permitted. For instance, a user can rip the notch 44 across to edges 17 a, 32 a to access the internal compartment 12, while ripping the notch 44 the opposite direction toward edges 17 b, 32 b will provide access into the main package compartment 12.
  • Each of the embodiments of the present invention can further include a tab or lip portion [0037] 39 at the top end portion of the internal panel 24 as shown in FIGS. 2, 4, and 7. The lip portion 39 generally extends some distance outside of the opened package 10 after formation to provide yet another means of facilitating the filling of the inner cavity 26 and/or the compartment cavity 28 with contents. By providing the lip 39, a filling machine, such as a pouch machine, a form-fill-seal machine, a premade pouch filling machine or other like machines known to one skilled in the art can easily push back the internal panel 24 toward a panel (i.e., the back panel 18) of the package 12 opposite the panel having the sealing surface 27 (i.e., the front panel 16). In those packages and embodiments of the present invention attaching the internal panel 24 to the front panel 16, this pushes the internal panel 24 towards the back panel 18 to more clearly define and separate the opening of the inner cavity 26 and the compartment cavity 28 such that contents designated for one cavity will not accidentally enter the other cavity.
  • In the embodiments of FIGS. 2[0038] b and 5 b, the transverse edge 34 of the internal panel 24 is similarly bonded to only one of the front 16 or back 18 panels. In addition, the inclusion of the at least one side panel 22 makes it possible to only bond the edges 32 a, 32 b of the internal panel 24 to the same of the front 16 or back 18 panels. For instance, the edges 19 of the back panel 18 are free from bondable sealing with the edges 17 of the front panel 16 and the edges 32 a, 32 b of the internal panel 24. Instead, the edges 32 a are bonded to edges 17 a and edges 32 b are bonded to edges 17 b. As with the other embodiments, the longitudinal seal 38 can be included, as shown in FIG. 5b. To prevent the edges 32 a, 32 b from bonding to the back panel 18, the barrier 40 and the various barrier techniques described herein can be employed at any of the sealing regions. With such an embodiment having a side panel 22, expansion of the bottom panel 10, or gusseted bottom panel 20 g, and expansion of the side panel 22, or side panel 22 g, is not substantially hindered by the bonded internal panel 24 or its sealed portions.
  • Referring to FIGS. [0039] 8-9, the manufacturing process generally includes placing the internal panel portion 24 between the front 16 and back 18 panel portions such that the segregated multi-compartment package 10 of the present invention is formed. This formation process generally comprises a roller feed station 50, a gusseting/folding station 52, an alignment station 54, a first seal station 56, and a side seal station 58. The formation process can further include a cooling station 60 and a cut-off station 62. Each of the base steps in forming the package 10 of the present invention can be performed by known pouch machines, form-fill-seal machines, and like machines known to one skilled in the art for forming pouches and/or forming and filling pouches in the confines of the same manufacturing process.
  • During formation of the package, the internal panel [0040] 24 is fed between the front 16 and back 18 panel portions such that the internal panel 24 extends from the top of the pouch down a distance short of where the folded gusset bottom 20 g starts, depending on the length of longitudinal edges 32 a, 32 b. As shown in FIG. 8, at the roller feed station 50, a front panel web roll 64, a back panel web roll 66, an internal panel web roll 68, and a bottom panel web roll 70 are each individually positioned and fed along a general web direction using rollers, brackets, guides, and other techniques and mechanism known to one skilled in the art for forming flexible packages. The sealant surface 27 of the front panel web roll 64 is facing inward toward the alignable internal web 68 and the internal panel sealant surface 30 of the internal panel web roll 68 is likewise facing out toward the alignable front panel web roll 64. Prior to final alignment of the webs 64-70 before bondable sealing, the bottom web 70 can be gusseted at the gusseting station 52 using known techniques, mechanisms and methods known to one skilled in the art. For instance, a v-bracket can be inserted along an intermediate portion of the bottom web 70 as it is being fed through the process such that a gusset fold forms web 70 g to define what will be bottom panel 20 g for each of the packages 10.
  • Referring primarily to FIG. 9, the aligned webs [0041] 64, 66, 68, and 70 g are positioned or laid upon each other and fed into the first seal station 56. At this station, seals running along the line of the web direction but transverse to the orientation of the final package 10 can be employed. Specifically, a first seal bar 72 can contact the outer surface of a panel, such as a portion of the front panel web 64 (or the back panel web 66) to create the transverse seal 36, and/or the temporary seal 42 to bondably attach the transverse edge 34 of the internal web 68. Further, a second seal bar 74 can contact the outer surface of the front panel web 65 (or the back panel web 66) to fully seal the bottom gusseted panel web 70 g to the front web 65 and/or the back web 66. Following these seals at the first seal station 56, the now partially-sealed webs 64, 66, 68, and 70 g continue along the web direction to the side seal station 58. The side seal station 58 can include at least one side seal bar 76, and preferably two side seal bars 76, positioned and designed to contact the outer portion of the webs to intermediately seal the longitudinal edges 32 of the internal panel web 68 to the respective confronting edges 17, 19 of the front 64 and back 66 panel webs. A seal bar can be implemented at this stage to selectively seal along the package to form the longitudinal seal 38 described herein. As previously indicated, pieces or strips of Teflon, or similar materials having beneficial heat resistant qualities have been placed at the designated target regions described herein so that unwanted bonding of particular panel portions is avoided. Following the sealing at the side seal station 58, the boundaries and seals for the internal compartment package 14 and the main package 12 are defined for each contiguous package 10 passing along the web path of the machine.
  • As the now forming package [0042] 10 leaves the side seal station 58 along the web path of the machine, each package 10 can enter a cooling station 60. The cooling station 60 can include at least one cooling bar 78 which is applied along the various seals, i.e., the seals created at the side seal station 58, to lower the web material temperature to further promote and stabilize the bonds created. Once the cooling bars 78 have performed the cooling functions required upon application, each package 10, still contiguously linked, can be separated to define the distinct package 10 at the cut-off station 62. The cut-off station 62 can include a cutting device 80 such as a blade or other known mechanism that can trim the edges of the package 10 and cut the end package 10 from the adjacently joined package 10. Other trimming devices and mechanisms can further be employed to trim the various edges of the package 10.
  • With this manufactured package product, a compartmentalized package is created such that there is no mingling or intrusion of the contents of the distinct compartments [0043] 12, 14 and corresponding cavities 26, 28. In addition, the transverse edge 34 of the internal panel 24 is bonded only to one of the selected target panels 16, 18. This leaves the remaining panel not targeted for receiving the internal panel 24 free for movement. For instance, a bottom panel 20 g and/or a side panel 22 g are free to expand or contract contingent upon the insertion or removal of contents within the inner cavity 16, thus not detrimentally affecting the functionality of the package 10 or the capacity or functionality of the compartment cavity 28. Each cavity 26, 28 and package portion 12, 14 is substantially independent from the other. Various handles, graphics, closeable and re-closeable devices, gusseted portions, and like features known to one skilled in the art are also envisioned for use with this invention and can be implemented without deviating from the spirit and scope of the present invention. All references to front, back, bottom, and the like are merely for demonstrative purposes and are not intended to limit the variations and positional references and orientations of the panels in the present invention.
  • The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is, therefore, desired that the present embodiment be considered in all respects as illustrative and not restrictive. Similarly, the above-described methods and techniques for manufacturing the present invention are illustrative sequential processes and are not intended to limit the methods of manufacturing the present invention to those specifically defined herein. It is envisioned that various depicted steps can be performed in differing substantive and sequential order. In addition, various unspecified steps and procedures can be performed in between those steps described herein without deviating from the spirit and scope of the present invention and the method of manufacturing the same. [0044]

Claims (44)

  1. 1. A multi-compartment flexible package, comprising:
    a main package having at least
    a first panel including an inner first panel surface, an outer first panel surface, a plurality of first panel edge portions, a top portion, and a bottom portion;
    a second panel including an inner second panel surface, an outer second panel surface, and a plurality of second panel edge portions joined to the plurality of first panel edge portions to define an inner cavity of the main package, wherein the inner second panel surface and the inner first panel surface are within the inner cavity;
    at least one gusseted panel; and
    an internal compartment panel including two longitudinal edge portions, and a transverse edge portion transverse to the two longitudinal edge portions, wherein the two longitudinal edge portions are joined to the inner surface of the first panel within the inner cavity and the transverse edge portion is joined to the inner surface of the first panel intermediate the top portion and the bottom portion of the first panel to define a second compartment cavity distinct from the inner cavity of the main package.
  2. 2. The multi-compartment flexible package of claim 1, wherein the first panel is a front panel of the main package.
  3. 3. The multi-compartment flexible package of claim 2, the second panel further including a second bottom portion, and the at least one gusseted panel is a bottom panel, wherein the gusseted bottom panel is joined to the bottom portions of the front panel and the second panel in a substantially transverse relationship.
  4. 4. The multi-compartment flexible package of claim 1, wherein the first panel is a back panel of the main package.
  5. 5. The multi-compartment flexible package of claim 4, the second panel further including a second bottom portion, and the at least one gusseted panel is a bottom panel, wherein the gusseted bottom panel is joined to the bottom portions of the back panel and the second panel in a substantially transverse relationship.
  6. 6. The multi-compartment flexible package of claim 1, wherein the first panel further includes a longitudinal seal intermediate the edge portions of the first panel and substantially traversing from the transverse edge portion to the top portion of the first panel to longitudinally seal the internal compartment panel to the first panel to define the second compartment cavity.
  7. 7. The multi-compartment flexible package of claim 6, wherein at least one barrier is disposed between the longitudinal seal and the second panel to prevent joining of the internal compartment panel to the inner second panel surface.
  8. 8. The multi-compartment flexible package of claim 6, wherein a top portion of the internal compartment panel distal the transverse edge portion is joined to the inner surface of the second panel creating a first top seal.
  9. 9. The multi-compartment flexible package of claim 8, wherein the first top seal is a temporary seal providing selective disengagement of the top portion of the internal compartment panel from the second panel.
  10. 10. The multi-compartment flexible package of claim 9, wherein another top portion of the internal compartment panel distal the transverse edge portion is joined to the inner surface of the first panel creating a second top seal.
  11. 11 The multi-compartment flexible package of claim 10, wherein the second top seal is a temporary seal providing selective disengagement of the top portion of the internal compartment panel from the first panel.
  12. 12. The multi-compartment flexible package of claim 1, wherein the joining of the transverse edge portion of the internal compartment panel to the first panel is a temporary seal capable of selective disengagement from the first panel to bring the inner cavity and the second compartment cavity into fluid communication.
  13. 13. The multi-compartment flexible package of claim 6, wherein the longitudinal seal is a temporary seal capable of selective disengagement from the first panel to bring the inner cavity and the second compartment cavity into fluid communication.
  14. 14. The multi-compartment flexible package of claim 6, further including a notch extending a distance into at least a portion of the longitudinal seal proximate the top portion of the first panel and adapted to enable selective tearing transverse to the longitudinal seal for access into both the inner cavity and the second compartment cavity.
  15. 15. The multi-compartment flexible package of claim 1, wherein the internal compartment panel further comprises a lip portion distal the transverse edge portion and extending above the top portion of the first panel.
  16. 16. The multi-compartment flexible package of claim 1, wherein at least one barrier is selectively disposed between the internal compartment panel and the second panel to prevent joining of the internal compartment panel to the inner second panel surface.
  17. 17. The multi-compartment flexible package of claim 16, wherein the at least one barrier is disposed substantially along the transverse edge portion of the internal compartment panel.
  18. 18. A multi-compartment flexible package, comprising:
    a main package having at least
    a front panel including an inner front panel surface, an outer front panel surface, a plurality of front panel edge portions, and a top and bottom front portion;
    a back panel including an inner back panel surface, an outer back panel surface, a plurality of back panel edge portions, and a top and bottom back portion, wherein the back panel is joined to the plurality of front panel edge portions to define an inner cavity of the main package, wherein the inner back panel surface and the inner front panel surface are within the inner cavity; and
    an internal compartment panel including two longitudinal edge portions, and a transverse edge portion transverse to the two longitudinal edge portions, wherein the two longitudinal edge portions are joined to the inner surface of the back panel within the inner cavity and the transverse edge portion is joined to the same inner surface of the back panel intermediate the top and bottom portion of the back panel to define a second compartment cavity distinct from the inner cavity of the main package.
  19. 19. The multi-compartment flexible package of claim 18, further including at least one gusseted panel.
  20. 20. The multi-compartment flexible package of claim 19, wherein the at least one gusseted panel is a bottom gusseted panel joined to the bottom portions of the front panel and the back panel in a substantially transverse relationship.
  21. 21. The multi-compartment flexible package of claim 18, wherein the back panel further includes a longitudinal seal intermediate the edge portions of the back panel and substantially traversing the longitudinal length of the back panel portion from the transverse edge portion to longitudinally seal the internal compartment panel to the back panel to define the second compartment cavity.
  22. 22. The multi-compartment flexible package of claim 21, wherein at least one barrier is disposed between the longitudinal seal and the front panel to prevent joining of the internal compartment panel to the inner surface of the front panel.
  23. 23. The multi-compartment flexible package of claim 18, wherein the joining of the transverse edge portion of the internal compartment panel to the back panel is a temporary seal capable of selective disengagement from the back panel to bring the inner cavity and the second compartment cavity into fluid communication.
  24. 24. The multi-compartment flexible package of claim 21, wherein the longitudinal seal is a temporary seal capable of selective disengagement from the back panel to bring the inner cavity and the second compartment cavity into fluid communication.
  25. 25. The multi-compartment flexible package of claim 21, further including a notch extending a distance into at least a portion of the longitudinal seal proximate the top portion of the back panel and adapted to enable selective tearing transverse to the longitudinal seal for access into both the inner cavity and the second compartment cavity.
  26. 26. The multi-compartment flexible package of claim 18, wherein the internal compartment panel further comprises a lip portion distal the transverse edge portion and extending above the top portion of the back panel.
  27. 27. The multi-compartment flexible package of claim 18, wherein at least one barrier is disposed between the internal compartment panel and the front panel to prevent joining of the internal compartment panel to the inner surface of the front panel.
  28. 28. The multi-compartment flexible package of claim 27, wherein the at least one barrier is disposed substantially along the transverse edge portion of the internal compartment panel.
  29. 29. A multi-compartment flexible package, comprising:
    a main package having at least
    a first panel including an inner first panel surface, an outer first panel surface, a plurality of first panel edge portions, a top portion, and a bottom portion;
    a second panel including an inner second panel surface, an outer second panel surface, and a plurality of second panel edge portions;
    at least one side panel including a plurality of side panel edge portions joined to edge portions of the first panel and the second panel to define an inner cavity of the main package, wherein the inner second panel surface and the inner first panel surface are within the inner cavity; and
    an internal compartment panel including two longitudinal edge portions, and a transverse edge portion transverse to the two longitudinal edge portions, wherein the two longitudinal edge portions are joined to the inner surface of the first panel within the inner cavity and the transverse edge portion is joined to the inner surface of the first panel intermediate the top portion and the bottom portion of the first panel to define a second compartment cavity distinct from the inner cavity of the main package.
  30. 30. The multi-compartment package of claim 29, wherein the at least one side panel is gusseted.
  31. 31. The multi-compartment package of claim 29, wherein the at least one side panel is two side panels, with a first of the side panels being joined to a first of the edge portions of the second panel and a first of the edge portions of the first panel, and the second of the side panels being joined to a second of the edge portions of the second panel and a second of the edge portions of the first panel.
  32. 32. The multi-compartment package of claim 31, wherein at least one of the two side panels is gusseted.
  33. 33. The multi-compartment flexible package of claim 29, wherein the first panel further includes a longitudinal seal intermediate the edge portions of the first panel and substantially traversing from the transverse edge portion to the top portion of the first panel to longitudinally seal the internal compartment panel to the first panel to define the second compartment cavity.
  34. 34. The multi-compartment flexible package of claim 33, wherein at least one barrier is selectively disposed between the longitudinal seal and the second panel to prevent joining of the internal compartment panel to the inner surface of the second panel.
  35. 35. The multi-compartment flexible package of claim 29, wherein the joining of the transverse edge portion of the internal compartment panel to the first panel is a temporary seal capable of selective disengagement from the first panel to bring the inner cavity and the second compartment cavity into fluid communication.
  36. 36. The multi-compartment flexible package of claim 33, wherein the longitudinal seal is a temporary seal capable of selective disengagement from the first panel to bring the inner cavity and the second compartment cavity into fluid communication.
  37. 37. A method of forming a multi-compartment flexible package with a package forming machine, comprising the steps of:
    feeding a roll of a first panel web in the package forming machine, the first panel web having a first panel width defined by a first top edge portion and a first bottom edge portion;
    feeding a roll of a second panel web in the package forming machine planarly parallel and separate from the first panel web, the second panel web having a second panel width substantially the same as the first panel width;
    feeding a roll of a gusseted bottom panel web in the package forming machine intermediate the first panel web and the second panel, wherein the gusseted bottom panel web has a bottom panel width smaller than the first and second panel width;
    feeding a roll of an internal panel web in the package forming machine intermediate the first panel web and the gusseted bottom panel, wherein the internal panel web has an internal panel width smaller than the first and second panel width, the internal panel width being defined by an internal top edge portion and an internal bottom edge portion;
    confrontingly aligning each of the first panel web, the second panel web, the gusseted bottom panel web, and the internal panel web whereby the intermediately aligned internal panel web is positioned such that the internal bottom edge portion substantially aligns between the first top edge portion of the first panel web and the gusseted bottom panel web;
    sealing the internal bottom edge portion of the internal panel web to the first panel web;
    sealing the bottom gusseted panel web to the first panel web and the second panel web;
    transversely sealing across the width of the first panel web two spaced side seals to define side portions of the multi-compartment package and a main package cavity, and wherein the sealing of the internal bottom edge portion of the internal panel web to the first panel web forms a second compartment cavity distinct from the main package cavity within the multi-compartment package;
    cutting away the multi-compartment package from an adjacently connected multi-compartment package.
  38. 38. The method of claim 37, further comprising the step of sealing across the width of the first panel web intermediate the two side seals a longitudinal seal to bond a portion of the internal panel web to the front panel web transverse to the internal bottom edge portion of the internal panel web.
  39. 39. The method of claim 37, further comprising the step of filling at least one of the second compartment cavity and the main package cavity with contents.
  40. 40. The method of claim 39, further comprising the step of sealing top portions of the first panel and the second panel together to close off access into the second compartment cavity and the main package cavity.
  41. 41. A method of forming a multi-compartment flexible package, comprising the steps of:
    alignably feeding a first panel, a second panel, a bottom panel, and an internal compartment panel along a general web path in a package forming machine such that a main package having a main inner cavity is defined by at least the first panel, the second panel, and the bottom panel, and wherein the internal compartment panel is aligned between the first panel and the second panel within the main inner cavity such that the internal compartment panel traverses some distances short of the full longitudinal length of the first panel;
    sealing longitudinal edges of the internal compartment panel intermediate corresponding longitudinal edges of the first and second panel; and
    sealing a transverse edge of the internal compartment panel to an inside surface of the first panel transverse to the longitudinal edges of the first panel between a top portion of the first panel and the bottom panel to define a second compartment having a compartment cavity, wherein the main inner cavity and the compartment cavity are distinct cavities within the multi-compartment flexible package.
  42. 42. The method of claim 41, further comprising the step of sealing a longitudinal seal along the first panel between the two longitudinal edges of the first panel to seal a portion of the internal compartment panel to the first panel.
  43. 43. The method of claim 41, further comprising the step of selectively providing a barrier material between the second panel and at least a portion of the proximate internal compartment panel to prevent joining of the internal compartment panel to the second panel.
  44. 44. The method of claim 43, further comprising providing the barrier material between the second panel and the transverse edge of the internal compartment panel.
US10456971 2002-06-06 2003-06-06 Multi-compartment flexible package Abandoned US20040031244A1 (en)

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US38679802 true 2002-06-06 2002-06-06
US10456971 US20040031244A1 (en) 2002-06-06 2003-06-06 Multi-compartment flexible package

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US10456971 US20040031244A1 (en) 2002-06-06 2003-06-06 Multi-compartment flexible package
US11857292 US20090080810A9 (en) 2002-06-06 2007-09-18 Multi-compartment flexible package
US12371766 US20090208147A1 (en) 2002-06-06 2009-02-16 Multi-compartment flexible package
US12417877 US20090238499A1 (en) 2002-06-06 2009-04-03 Multi-compartment flexible package
US13161464 US9108381B2 (en) 2002-06-06 2011-06-15 Multi-compartment flexible package
US15480947 US20170341821A1 (en) 2002-06-06 2017-04-06 Multi-compartment flexible package

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US11857292 Abandoned US20090080810A9 (en) 2002-06-06 2007-09-18 Multi-compartment flexible package
US13161464 Active US9108381B2 (en) 2002-06-06 2011-06-15 Multi-compartment flexible package

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US20090080810A9 (en) 2009-03-26 application
US9108381B2 (en) 2015-08-18 grant
US20120006702A1 (en) 2012-01-12 application
US20080002918A1 (en) 2008-01-03 application

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