MULTI-COMPARTMENT FLEXIBLE PACKAGE
A flexible package is provided having a main package compartment and a segregated internal or secondary compartment. The main package generally includes a plurality of outer panel portions. An internal compartment panel can include a transverse portion operatively joined to one of the main package panel portions to define the secondary compartment. Further, the secondary compartment can include a plurality of passageways providing fluid communication between the secondary compartment and the main package compartment.
This application is a Continuation-In-Part Application of U.S. application Ser. No. 11/857,292, filed Sep. 18, 2007, which in turn is a Divisional Application of U.S. application Ser. No. 10/456,971, filed Jun. 6, 2003 and now abandoned, which in turn claims the benefit of U.S. Provisional Application No. 60/386,798, filed Jun. 6, 2002; wherein each of the above-referenced applications and disclosures are hereby incorporated herein by reference in their entirety.
FIELD OF THE INVENTIONThe present invention relates generally to flexible packaging and, more particularly, to flexible packaging having at least one segregated internal compartment capable of fluid communication with a main package compartment.
BACKGROUND OF THE INVENTIONConventional flexible packaging does not generally include compartments within the internal cavity of the package. Typically, a wall is simply positioned down a section of the internal cavity of the main packaging such that a division is merely created for the internal cavity. Distinct and selectively usable compartments within the cavity are not provided for in these conventional package designs. More specifically, conventional packaging lacks selectively usable and distinct compartments capable of fluid communication with each other.
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.
SUMMARY OF THE INVENTIONThe 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 a main internal compartment or 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 compartment package can include at least one internal compartment panel portion disposed between the main panel portions (e.g., back and front) to define a separate internal secondary compartment.
In one embodiment, the secondary internal compartment is some size generally smaller than the vertical or longitudinal length of the front and back panels, of varying available width. Further, the internal compartment panel can include a plurality of defined passageways providing distinct channels of fluid communication between the secondary internal compartment and the main internal compartment.
The secondary internal compartment having such passageways can be of varying sizes and shapes, and can be formed or sealed to define a plurality of internal compartments in communication with the main package compartment. Such an internal compartment can be utilized to hold or contain sauces, condiments, frozen contents, gelatinous contents, or like contents or substances, thus permitting selective communication of the contents within the internal compartment with the space or contents of the main package compartment through the passageways. The passageways can be of varying sizes, shapes, designs, configurations and can vary greatly in number depending on the particular needs of the manufacturer and end users.
While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. For illustrative purposes, hatching or shading in the figures is generally provided to demonstrate sealed portions and/or integrated devices for the package.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTSReferring generally to
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
The segregated internal compartment package 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 32a, 32b and a transverse compartment panel edge or portion 34.
The package portions 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”, e.g., 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 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 34 of the internal panel 24 will generally not be bound to the main body of 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, generally 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 32a, 32b 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, e.g., 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
In
While the transverse seal 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 17b, 32b. 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 17a, 32a and the edges 17b, 32b, thus also providing a barrier along the seal 36 between the longitudinal seal 38 and the edges 17b, 32b. 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 32a, 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 24 to the top portion of the front panel 16, distal the transverse seal 36, as shown in
Various embodiments of the present invention can include a temporary seal 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
In one embodiment, the temporary seal 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
Various embodiments can further include a notch 44, as shown in
Each of the embodiments of the present invention can further include a tab or lip portion 39 at the top end portion of the internal panel 24 as shown in
In the embodiments of
Referring to
During formation of the package, the internal panel 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 20g starts, depending on the length of longitudinal edges 32a, 32b. As shown in
Referring primarily to
As the now forming package 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, e.g., 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 12, 14 and corresponding cavities 26, 28. In addition, the transverse edge 34 of the internal panel 24 is generally 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 20g and/or a side panel 22g 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.
Referring generally to
In this passageway embodiment, the internal compartment package 14 can be defined by bonding or otherwise operatively joining (e.g., directly or indirectly) the transverse edge 34 of the at least one internal compartment panel portion 24 to the main sealant surface 27 of one of the front 16 or back 18 panels, with the other of the panels 16, 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 or portion 20 defined by joining or forming the ends of the front 16 and back panel 18 portions, can be gusseted to create a bottom gusseted panel portion 20g.
As best demonstrated in
The passageway portion 100 provides fluid communication between the secondary compartment 28 and the main package compartment 26. For example, in one embodiment, the passageway portion 100 can include a plurality of seal segments or lands 102 spaced or otherwise provided to define a plurality of passageways or channels 104. A seal bar or other known device or process can be employed to seal the spaced land portions 102 to the inner sealant surface of the back panel 18, while leaving the channels or openings 104 generally free of such bonding. The seal bar can include defined and extending segments to achieve the limited or selective contact surfaces for sealing the edge 34 to create the desired spaced lands 102. This selective sealing of the transverse edge 34 along the inner surface of one of the main package panels can occur along any distance between the bottom and top portions of the panels 16, 18. In addition, like other package configurations detailed herein, the passageway embodiment of the current invention can also include side panel portions, gusseted or non-gusseted. Further, the formation of the lands 102 and channels 104 can be accomplished by any means of bonding, sealing or forming package portions known to one of ordinary skill in the art. The shape, size, and spacing of the lands 102 and channels 104 can vary greatly according to content and package formation needs.
Like other embodiments described or depicted herein, an intermediate longitudinal seal 38 can be provided at some location intermediate the edges 32a, 32b. The bonding at the longitudinal seal 38 traverses from the top of the package 10 down to the transverse edge 34. As such, this creation of the longitudinal seal 38 between or intermediate the longitudinal edges of the package creates an internal compartment 28 divided into two or more compartments 28a, 28b, as demonstrated in
To prevent the internal panel 24, and the transverse edge 34 in particular, from sealing to one or more of the panels (e.g., front and/or back) during formation and sealing, 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 panels and the internal panel 24 proximate the line of the transverse edge 34. During formation of the package 10, the longitudinal edges 32a, 32b of the internal panel 24 are bonded intermediate the edge portions 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 secondary compartment 28 can be measurably smaller than that of the inner cavity 26 of the main package 10.
In use, the secondary compartment 28 can be filled with material contents capable of selective communication with the main package compartment 26. For instance, frozen, semi-frozen, gelatinous, granular, solid, and other like material contents 11 can occupy the secondary compartment 28 such that they do not readily traverse the channels 104 of the passageway portion 100 until desired. However, traversal can be initiated by heating and transforming the structure of the contents, squeezing or otherwise forcing the contents through the channels 104, or via a myriad of other techniques or methods. For example, the secondary compartment 28 could include a frozen fluid, such as a sauce, that melts upon the application of heat, which in turn causes the fluid to flow through the channels 104 and into the main compartment 26 where compatible contents, such as pasta or rice, are present. This allows for the contents 11 of the secondary compartment 28 to remain distinct and separate from the contents of the main compartment 26 until a time when inter-compartmental communication is desired. The selection of contents 11 that can be included in compartments 26, 28 is nearly limitless and the examples provided herein are for demonstrative purposes only.
Various handles, graphics, closeable and re-closeable access 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. In addition, various passageway embodiments of the present invention can further include one or more notch or tear portions located proximate a longitudinal edge or top portion of the package 10 adapted for access through an opening. These notch portions permit 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.
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 sam
Claims
1. A multi-compartment flexible package, comprising:
- a main package portion having at least; a first panel including an inner first panel surface; and a second panel including an inner second panel surface, with at least the first panel and second panel operatively connected to define a main package compartment;
- an internal compartment panel including a generally transverse bottom portion operatively joined to the inner surface of the first panel to define a secondary compartment generally distinct from the main package compartment, the transverse bottom portion including a plurality of passageways providing fluid communication between the secondary compartment and the main package compartment.
2. The multi-compartment flexible package of claim 1, further including an access device to provide access into at least one of the secondary and main package compartments through an access opening.
3. The multi-compartment flexible package of claim 1, wherein the internal compartment panel includes at least one intermediate longitudinal seal portion operatively joined to the inner surface of the first panel.
4. The multi-compartment flexible package of claim 1, wherein the secondary compartment is adapted to contain at least partially frozen contents.
5. The multi-compartment flexible package of claim 1, wherein the secondary compartment is adapted to contain contents selected from a group consisting of: frozen substances, semi-frozen substances, solid substances and gelatinous substances.
6. The multi-compartment flexible package of claim 1, further including a gusseted bottom panel portion.
7. A multi-compartment flexible package, comprising:
- a first panel including an inner first panel surface;
- a second panel including an inner second panel surface, with at least the first panel and second panel operatively connected to define a main package compartment; and
- an internal compartment panel including a transverse bottom portion operatively joined to the inner surface of the first panel to define a secondary internal compartment generally distinct from the main package compartment, the transverse bottom portion including a plurality of spaced seal segments and a plurality of spaced unsealed openings to provide fluid communication between the secondary internal compartment and the main package compartment.
8. The multi-compartment flexible package of claim 7, further including an access device to provide access into at least one of the secondary and main package compartments through an access opening.
9. The multi-compartment flexible package of claim 8, wherein the access device is a re-closeable access device.
10. The multi-compartment flexible package of claim 7, further including a tear portion provided to facilitate access into at least one of the main and secondary compartments.
11. The multi-compartment flexible package of claim 7, wherein the internal compartment panel includes at least one intermediate longitudinal seal portion operatively joined to the inner surface of the first panel such that the secondary compartment defines at least two distinct compartments.
12. The multi-compartment flexible package of claim 7, wherein the secondary compartment is adapted to contain at least partially frozen contents.
13. The multi-compartment flexible package of claim 7, wherein the secondary compartment is adapted to contain contents selected from a group consisting of: frozen substances, semi-frozen substances, solid substances and gelatinous substances.
14. The multi-compartment flexible package of claim 7, further including a gusseted bottom panel portion.
15. A multi-compartment package, comprising:
- a first outer panel including an inner first panel surface; and
- a second outer panel including an inner second panel surface;
- an internal compartment panel operatively provided between the first and second panels to define a main package compartment and a secondary internal compartment; and
- an inter-compartment passageway portion including a plurality of land segments and a plurality of openings providing fluid communication between the secondary internal compartment and the main package compartment.
16. The multi-compartment package of claim 15, wherein the plurality of land segments are spaced seal segments defined by the joining of portions of a transverse bottom portion of the internal compartment panel to a portion of the inner first panel surface.
17. The multi-compartment package of claim 16, wherein the transverse bottom portion of the internal compartment panel is joined to the inner first panel surface a distance above a bottom portion of the first outer panel.
18. The multi-compartment package of claim 15, wherein the secondary internal compartment is adapted to contain at least partially frozen contents.
19. The multi-compartment package of claim 15, further including a gusseted bottom panel portion.
20. The multi-compartment package of claim 15, wherein the internal compartment panel includes at least one intermediate longitudinal seal portion operatively joined to the inner first panel surface.
Type: Application
Filed: Apr 3, 2009
Publication Date: Sep 24, 2009
Inventor: Mark Steele (New Prague, MN)
Application Number: 12/417,877
International Classification: B65D 33/00 (20060101); B65D 30/22 (20060101); B65D 30/20 (20060101);