Reclosable stand-up package, and methods

Abstract
Stand-up, gusseted packages having a reclosable closure mechanism around the periphery of the package mouth. The package has opposite first and second panels, and first and second side panels, which together form a surrounding wall that defines the mouth. The closure mechanism is present on each of the panels. On the first and second panels, the closure mechanism is oriented inward, so that the panels can be interlocked. On each of the first and second side panels, the closure mechanism is oriented outward, and is present as a first portion and a second portion defined by the gusset. To close the package, the closure mechanisms on the first panel and second panel are interlocked, and the side panels are folded inward to allow the first portion and the second portion to interlock. Methods of making the package are described.
Description




TECHNICAL FIELD




This disclosure generally relates to resealable packages having a reclosable zipper closure. More particularly, this disclosure relates to gusseted stand-up packages.




BACKGROUND




Many packaging applications use resealable containers to store or enclose various types of articles and materials. These packages may be used to store food products, non-food consumer goods, medical supplies, waste materials, and many other articles. Resealable packages are convenient in that they can be closed and resealed after the initial opening to preserve the enclosed contents. The need to locate a storage container for the unused portion of the products in the package is thus avoided. In some instances, providing products in resealable packages appreciably enhances the marketability of those products.




One type of reclosable package, the reclosable bag, typically includes first and second opposing panels of a flexible material such as plastic film or paper. For example, the first and second opposing panels may be formed from a single sheet of film folded or wrapped upon itself. The sides of the opposing panels are fixedly connected to each other by heat sealing or by other means. The bottom is sealed closed. The top edges of the panels define a mouth opening which permits access to the contents of the bag. The reclosable package is equipped with reclosable fasteners positioned at the package mouth and extending inwardly across the mouth. Examples of reclosable fasteners include extruded fastener profiles such as complementary rib and groove fastener profiles or male and female fastener profiles.




Improvements in the design of stand-up packages are desirable.




SUMMARY OF THE DISCLOSURE




The present disclosure is directed to a stand-up, gusseted package having a reclosable closure mechanism around the periphery of the package mouth. The package has opposite first and second panels, and first and second side panels, which together form a surrounding wall that defines the mouth. The closure mechanism is present on each of these panels. On the first and second panels, the closure mechanism is oriented inwardly, so that the panels can be interlocked. On each of the first and second side panels, the closure mechanism is oriented outwardly, and is present as a first portion and a second portion defined by the gusset. To close the package, the closure mechanisms on the first panel and second panel are interlocked, and the side panels are folded inwardly to allow the first portion and the second portion to interlock.




In one particular embodiment, a flexible package is provided. The package comprises a first panel, an opposite second panel, a first side panel and an opposite second side panel, together defining a package surrounding wall. The first side panel includes a fold line dividing the first side panel into a first portion and a second portion, and the second side panel includes a fold line dividing the second side panel into a first portion and a second portion. The package further has a bottom attached to each of the first panel, second panel, first side panel and second side panel, the bottom together with surrounding wall defining an interior for retaining an item therein. At the other end, a mouth defined by surrounding wall opposite the bottom provides access to the package interior. A reclosable closure mechanism surrounds the mouth, the reclosable closure mechanism comprising a first interlocking closure profile and a second interlocking closure profile. The reclosable closure mechanism comprises a panel extension of closure mechanism comprising the first interlocking closure profile operably oriented on the first panel and the second interlocking closure profile operably oriented on the second panel, so that the first interlocking closure profile is engageable with the second interlocking closure profile. The reclosable closure mechanism also comprises a first gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the first side panel, and the second interlocking closure profile attached to the second portion of the first side panel, so that the first interlocking closure profile is engageable with the second interlocking closure profile. Yet further, the reclosable closure mechanism comprises a second gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the second side panel, and the second interlocking closure profile attached to the second portion of the second side panel, so that the first interlocking closure profile is engageable with the second interlocking closure profile.




In a variation, the reclosable closure mechanism comprises a panel extension of closure mechanism comprising the first interlocking closure profile operably oriented on the first panel and the second interlocking closure profile operably oriented on the second panel, so that the first interlocking closure profile is engageable with the second interlocking closure profile; a first gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the first side panel, and the second interlocking closure profile attached to the second portion of the first side panel, so that the first interlocking closure profile is engageable with the second interlocking closure profile; and a second gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the second side panel, and the second interlocking closure profile attached to the second portion of the second side panel, so that the first interlocking closure profile is engageable with the second interlocking closure profile.




Methods of making the packages are also described.











BRIEF DESCRIPTION OF THE DRAWINGS.





FIG. 1

is a perspective, schematic view of a first embodiment of a resealable, reclosable stand-up package constructed according to principles of this disclosure;





FIG. 2

is a side elevational view of the stand-up package of

FIG. 1

;





FIG. 3

is a perspective, schematic view of a second embodiment of a resealable, reclosable stand-up package constructed according to principles of this disclosure;





FIG. 4

is a side elevational view of the stand-up package of

FIG. 3

;





FIG. 5

is an enlarged, schematic cross-sectional view of a reclosable closure mechanism suitable for incorporation into the stand-up packages of the previous figures;





FIG. 6

is an enlarged, schematic perspective view of a second reclosable closure mechanism suitable for incorporation into the stand-up packages of

FIGS. 1 through 4

;





FIG. 7

is a side elevational view of a stand-up package incorporating the reclosable closure mechanism of

FIG. 6

; and





FIG. 8

is a schematic depiction of a process for making the stand-up package of

FIG. 7

using the reclosable closure mechanism of FIG.


6


.











DETAILED DESCRIPTION




Attention is directed to

FIGS. 1 and 2

, which illustrate an example packaging arrangement in the form of a resealable, reclosable, stand-up package


10


. Generally, package


10


is a flexible package, made from, for example, polymeric material such as polyethylene, polypropylene, or other plastics, paper, metal or foil, or any combinations thereof. Package


10


is considered a “stand-up package”, for reasons which will be described below.




Package


10


has an interior containment section


11


defined by first panel


12


, second panel


14


that is positioned opposite first panel


12


, first side panel


22


, and second side panel


24


that is positioned opposite first side panel


22


. Side panels


22


,


24


are foldably connected to panels


12


,


14


; specifically, first side panel


22


is foldably connected to first panel


12


at an edge


16


and to second panel


14


at an edge


17


, and second side panel


24


is foldably connected to first panel


12


at an edge


18


and to second panel


14


at an edge


19


. In the embodiment shown, panels


12


,


14


,


22


,


24


are rectangular in shape, although many different shapes and sizes of panels may be used depending on the desired application. Together with bottom


15


, these panels


12


,


14


,


22


,


24


form a surrounding wall


13


that retains items within interior


11


. Access is gained to interior


11


through mouth


20


. Mouth


20


is defined by panels


12


,


14


,


22


,


24


and preferably, mouth


20


is the same size and shape as bottom panel


15


. In some embodiments, however, it may be desired to have mouth


20


smaller or larger than bottom panel


15


. This can be accomplished, for example, by having panels that taper smaller or larger, respectively, as the panels extend from bottom panel


15


to mouth


20


. It is understood that a flexible package


10


can be easily distorted so that mouth


20


may not have the same shape as bottom panel


15


.




Surrounding wall


13


, that is, panels


12


,


14


,


22


,


24


, can be formed in many ways. Typically, surrounding wall


13


is manufactured from a single piece of web material, such as plastic. A seam, such as a heat seal, may be present at one or multiple edges where the various panels meet. For example, edge


16


between and connecting first panel


12


and first side panel


22


may be a seam. Alternately, a seam may be present within a panel, such as first panel


12


. In yet an alternate embodiment, surrounding wall


13


can be formed from a seamless, tubular material. In preferred embodiments, bottom


15


is generally a flat, planar panel and may or may not include a seam therein.




Side panels


22


,


24


of package


10


are gussets, which are known for providing packages with “stand-up” features. Gussets also allow full extension of package


10


, so as to achieve a large opening at mouth


20


, and also allow convenient folding or collapsing of package


10


when not in use. Typically when making gussets, a single piece of film is folded to form the gusseted panel section, such as side panel


22


. Gusseted panels include a gusset fold


25


, which facilitates folding of side panels


22


,


24


and package


10


.




To allow package


10


to be resealed after its initial opening, package


10


further includes a reclosable closure mechanism


30


at mouth


20


. Closure mechanism


30


can be any one of a variety of closure mechanisms that have interlockable or otherwise engageable first and second profiles. Typically, closure mechanism


30


is a zipper-type closure mechanism. By the term “zipper-type closure mechanism,” it is meant a structure having opposite interlocking or mating profiled elements that under the application of pressure will interlock and close the region between the profiles.




Examples of common reclosable closure mechanisms


30


include those having male and female type profiles or two other engageable profiles. The profiles may be self-mating, meaning that the same profile is used for each of the two mating profiles; in some embodiments, it may be preferred to use self-mating profiles. Typically, the resealable closure mechanism


30


is made of conventional materials, such as a polymeric, plastic material, for example, polyethylene, polypropylene, or PVC. One example of a usable reclosable closure mechanism


30


is shown in FIG.


5


.




Closure mechanism


30


of

FIG. 5

has a first closure profile


32


and a second closure profile


42


, which interlock. First closure profile


32


includes a base strip


34


, a sealing flange or bonding strip


36


, a first mating closure member


35


, and an upper flange or distal end


38


. Mating closure member


35


extends from base strip


34


and generally projects from base strip


34


. Sealing flange


36


depends or extends downward from base strip.


34


and has sufficient structure so that it can be attached to a panel section, such as first panel section


12


of the package


10


shown in

FIGS. 1 and 2

.




Second closure profile


42


is similar to first closure profile


32


in that it includes a base strip


44


, a bonding strip or sealing flange


46


, a second mating closure member


45


, and an upper flange or distal end


48


. Mating closure member


45


extends from base strip


44


and is generally projecting from base strip


44


. Mating closure member


45


, as shown in

FIG. 5

, has three members


45




a


,


45




b


,


45




c


projecting from base strip


44


, whereas mating closure member


35


of first closure profile


32


has two members


35




a


,


35




b


projecting from base strip


34


. Sealing flange


46


depends or extends downward from base strip


44


and can be attached to a second panel section, such as second panel section


14


of package


10


shown in

FIGS. 1 and 2

.




First and second closure profiles


32


,


42


are designed to engage with one another; in particular, first and second mating closure members


35


,


45


are designed to mate and engage with one another. Pressure is applied to closure profiles


32


,


42


as they engage to form the openable sealed closure mechanism


30


. Pulling or otherwise prying first closure profile


32


and second closure profile


42


away from each other causes the two closure profiles


32


,


42


to disengage, opening package


10


of

FIGS. 1 and 2

. This provides access to the contents of package


10


through mouth


20


.




Referring again to

FIGS. 1 and 2

, closure mechanism


30


is present at mouth


20


at each of panels


12


,


14


,


22


,


24


. Specifically, closure mechanism


30


has a panel extension


31


, present on first and second panels


12


,


14


, and a gusset extension


33


, present on side panels


22


,


24


. Panel extension


31


is operably secured to or present on first and second panels


12


,


14


so that first and second mating closure members


35


,


45


of first and second mating closure profiles


32


,


42


(

FIG. 5

) are positioned facing towards each other. That is, panel extension


31


is positioned on first and second panels


12


,


14


so that the two profiles of panel extension


31


can interlock or otherwise engage. When panel


12


and panel


14


are brought together and contact each other at mouth


20


, panel extension


31


can be interlocked to form a seal across mouth


20


.




Gusset extension


33


is operably secured to or present on first and second side panels


22


,


24


so that first and second mating closure members


35


,


45


extend outwardly away from interior


11


of package


10


. Gusset extension


33


is present as a first portion


33




a


and a second portion


33




b


, which are defined by or separated by gusset fold


25


, so that first portion


33




a


is present between gusset fold


25


and panel


14


and second portion


33




b


is present between gusset fold


25


and panel


12


. The closure mechanisms of first portion


33




a


and second portion


33




b


are oriented so that first portion


33




a


is interlockable or otherwise engageable with the closure mechanism of second portion


33




b


. This arrangement is provided so that when package


10


is collapsed, side panels


22


,


24


fold at gusset


25


, and first portion


33




a


and second portion


33




b


are brought together and contact each other.




In package


10


, best seen in

FIG. 2

, gusset extension


33


is not level or aligned with panel extension


31


. Rather, the majority of gusset extension


33


is positioned below, or closer to bottom


15


than, panel extension


31


. This allows panel extension


31


to be interlocked or sealed without interference from gusset extension


33


on side panels


22


,


24


. Additionally, this allows gusset extension


33


to be interlocked without. interference from panel extension


31


. Gusset extension


31


slopes or angles toward bottom


15


as it nears gusset fold


25


. The angle at which gusset extension


33


is present, that is, the angle formed between side edges


16


,


17


of side panel


22


and gusset extension


33


, is shown as angle a in FIG.


2


. Angle α is typically greater than 20 degrees and less than 80 degrees. Preferably, this angle is about 50 to 70 degrees, and most preferably about 60 degrees.




An alternate embodiment of a package


10


′ is shown in

FIGS. 3 and 4

. For ease of identification, those elements in the embodiment of

FIGS. 3 and 4

that are the same or which perform the same function as comparable elements previously discussed with respect to package


10


of

FIGS. 1 and 2

are followed by a prime designation (i.e., “′”). Package


10


′ is similar to package


10


of

FIGS. 1 and 2

in that package


10


′ has a surrounding wall formed by opposite panels


12


′,


14


′, side panels


22


′,


24


′ and bottom


15


′ that define interior


11


′. Mouth


20


′ is surrounded by reclosable closure mechanism


30


′. Gusset


25


′ in side panels


22


′,


24


′ provides package


10


′ with stand-up features and allows expansion of mouth


20


′.




Closure mechanism


30


′ has a panel extension of closure mechanism,


31


′, present on first and second panels


12


′,


14


′, and a gusset extension of closure mechanism


33


′, present on side panels


22


′,


24


′. Gusset extension


33


′ is present as first portion


33




a


′ and second portion


33




b


′, which are defined by the fold of gusset


25


′, so that first portion


33




a


′ is present between gusset


25


′ and panel


14


′ and second portion


33




b


′ is present between gusset


25


′ and panel


12


′. The closure mechanisms of first portion


33




a


′ and second portion


33




b


′ are oriented so that first portion


33




a


′ is interlockable or otherwise engageable with the closure mechanism of second portion


33




b


′ when gusset


25


′ is folded.




In package


10


′, best seen in

FIG. 4

, gusset extension


33


on side panels


22


′,


24


′ is not level with panel extension


31


′; rather, gusset extension


33


′ is positioned below panel extension


31


′; that is, gusset extension


33


′ is closer to bottom


15


′ than panel extension


31


′. This allows panel extension


31


′ to be sealed without interference from gusset extension


33


′. The displacement or offset of gusset extension of closure mechanism


33


′ from panel extension


31


′ should be sufficient so that panel extension


31


′ does not interfere with sealing of gusset extension


33


′, and vice versa. This displacement is typically at least 4 mm and typically no greater than 25 mm. In many embodiments, the displacement or offset of gusset extension of closure mechanism


33


′ from panel extension


31


′ is at least 5 mm and no greater than 20 mm. Preferably, gusset extension


33


′ is positioned about 8 mm below panel extension


31


′. Gusset extension


33


′ should not be spaced so far from panel extension


31


′that leaking out of any items within interior


11


′ of package


10


′ would occur. Although spaced from panel extension


31


′, gusset extension


33


′ is parallel to major length


31


′.




Reclosable closure mechanism


30


,


30


′ is present around all sides of mouth


20


,


20


′ so that package


10


,


10


′ can be securely sealed when desired. Stand-up packages having a reclosable closure mechanism on only two opposite sides have been known, but these designs have a tendency to allow items to pass through.




Although only two variations for offsetting gusset extension


33


,


33


′ from panel extension


31


,


31


′, it is foreseen that other embodiments may also exist.




Preferably each profile of panel extension


31


,


31


′ extends completely across the width of panels


12


,


12


′,


14


,


14


′; that is, each profile of panel extension


31


,


31


′ preferably extends from first side panel


22


,


22


′ to second side panel


24


,


24


′. Similarly, preferably each profile of gusset extension


33


,


33


′ extends completely across the width of side panels


22


,


22


′,


24


,


24


′; that is, each profile of gusset extension


33


,


33


′ preferably extends from first panel


12


,


12


′ to second panel


14


,


14


′.




Preferably, there are no interruptions in either panel extension


31


,


31


′ or gusset extension o


33


,


33


′; each extension of closure mechanism


31


,


33


is continuous and contiguous. The corners or seams at which panel extension of closure mechanism


31


,


31


′ meets gusset extension of closure mechanism


33


,


33


′, are preferably sturdy and secure seals, with no gaps or unsealed area therebetween, so that mouth


20


,


20


′ continuously and contiguously surrounded by reclosable closure mechanism


30


,


30


′; however, it is understood that in some embodiments a gap or other non-continuous element may be present.




Other embodiments of packages in accordance with the present invention are also foreseen. For example, the package can be formed from any number of panels more than three.




Package


10


,


10


′ can be made by a variety of technique. Packages


10


,


10


′ will be made to include reclosable closure mechanism


30


,


30


′ present along the entire periphery or circumference of mouth


20


,


20


′.




Referring to

FIG. 6

, a reclosable closure mechanism


130


is shown that can be incorporated into a package, such as package


110


of

FIG. 7

, according to the present invention by the manufacturing method described below. Reclosable closure mechanism


130


has a first closure profile


132


and a second closure profile


142


, which interlock. Reclosable closure mechanism


130


differs from closure mechanism


30


of

FIG. 5

in that each of first and second closure profile


132


,


142


has an inner closure profile


132


′,


142


′ and an outer closure profile


132


″,


142


″. That is, first closure profile


132


has inner closure profile


132


′ and outer closure profile


132


″ extending in opposite directions from a base strip


134


. Extending or depending from base strip


134


is a sealing flange


136


that can be attached to a panel section, such as first panel section


12


of package


10


shown in

FIGS. 1 and 2

. Similarly, second closure profile


142


has inner closure profile


142


′ and outer closure profile


142


″ extending in opposite directions from a base strip


144


. Second closure profile


142


has a sealing flange


146


extending or depending from base strip


144


. By use of the terms “inner” and “outer” closure profile, it is intended to signify the orientation of the closure profiles upon being incorporated into a package, such as package


10


,


10


′. Inner closure profiles


132


′,


142


′ interlock or otherwise mate or engage with each other, as do outer closure profiles


132


″,


142


″.




A package incorporating reclosable closure mechanism


130


is shown in

FIG. 7

as package


110


. Package


110


has a surrounding wall


113


formed by opposite panels


112




114


, side panels


122


,


124


and bottom


115


. Side panels


122


,


124


are gusseted to provide package


110


with stand-up features; to facilitate folding of package


110


, gusset fold


125


is included. Package


110


has reclosable closure mechanism


130


present at mouth


120


, at the end opposite bottom


115


.




Closure mechanism


130


is present as a panel extension


131


on each of panels


112


,


114


; specifically, inner profile


132


′ and outer profile


132


″ are operably present on panel


114


and inner profile


142


′ and outer profile


142


″ are operably present on panel


112


. Inner profiles


132


′,


142


′ extend inward toward each other and are positioned to be interlocked. Also present is gusset extension


133


, which is present as a first portion


133




a


and a second portion


133




b


, separated by gusset fold


125


, on side panel


122


and also on the opposite side panel, not shown in FIG.


7


.




A process for manufacturing package


110


is shown schematically in FIG.


8


. As illustrated in

FIG. 8

, the process line progresses from right to left so that the final package is at the lower left side of FIG.


8


.




An extended length of reclosable closure mechanism


130


is joined with a polymeric film or other web (not shown) that will form side panels


112


,


114


of the resulting package


110


. The film web can be provided as two pieces, one for each of side panels


112


,


114


, or a single film web can be provided that is folded to provide both side panels


112


,


114


. The fold in the film web will be typically positioned at the resulting bottom


115


of package


110


, although in some embodiments the fold may be positioned close to the mouth, where closure mechanism


130


is attached to the film web; such a construction will require some cutting, slitting, or other perforation of the film web in order to gain access to the interior of the resulting package.




Closure mechanism


130


may be interlocked or separated during the process of attaching closure mechanism


130


to the film web; that is, first inner closure profile


132


′ can be interlocked or engaged with second inner closure profile


142


′, or first closure profile


132


can be separated from second closure profile


142


.




Closure mechanism


130


is attached to the film web at sealing flanges


136


,


146


. The film web can be attached to sealing flanges


136


,


146


on either of the opposite sides of sealing flanges


136


, that is, the inner side on which inner closure profiles


132


′,


142


′ reside, or the outer side on which outer closure profiles


132


″,


142


″ reside.




Although not shown, many suitable attachment mechanisms can be used to attach the extended length of closure mechanism


130


to the film web; for example, adhesive, solvent, ultrasonics, heat, pressure, or any combination, can be used to seal closure mechanism


130


to the film. In some embodiments, this attachment may be a continuous, permanent sealing or attachment; the attachment may be a “pre-seal”, that is, is a spot seal or a weak seal; or, no attachment may be made between closure mechanism


130


and the film at this step of the process. As used herein, the terms “seal” and “pre-seal” mean that two pieces, such as extended closure mechanism


130


and film, are adhered to each other, at least with a temporary bond, preferably with a permanent bond. Various nip rolls, idler rolls, pull rolls, tensioners, bars, positioners, and the like can be used to drive, pull, guide position and otherwise manipulate closure mechanism


130


and the film in respect to one another.




The film web is folded, sealed, and otherwise processed to provide the various features of the package, features such as panels


112


,


114


, side panel


122


and the opposite side panel, and bottom


115


of package


110


. Methods for folding, sealing, and otherwise forming packages having a surrounding wall such as package


110


are well known. Folding of gusset


125


is also well known.




To form package


110


, a section of reclosable closure mechanism


130


is removed. Reclosable closure mechanism


130


is cut, slit, die punched, or processed in other suitable fashions to provide a removed section


150


. The height of reclosable closure mechanism


130


is reduced in the area of removed section


150


. Removed section


150


extends sufficiently deep so that inner closure profiles


132


′,


142


′ are removed from that length of closure mechanism


130


have removed section


150


, but not so deep that outer closure profiles


132


″,


142


″ are disturbed. Removed section


150


has a width, which runs longitudinally along the extended length of closure mechanism


130


and which corresponds to the width of side panel


122


. More specifically, removed section


150


has a length that corresponds to the sum of first portion


133




a


of a first package


110




a


and second portion


133




b


of an adjacent second package


110




b


. First package


110




a


and adjacent second package


110




b


will eventually be separated between first portion


133




a


of first package


110




a


and second portion


133




b


of adjacent second package


110




b


. The chain of connected packages is separated to form individual packages


110


.




It is understood that the various steps in the above-described manufacturing method can be done in many sequences. For example, reclosable closure mechanism


130


can be provided with removed section


150


prior to attaching closure mechanism


130


to the film web. Alternately, closure mechanism


130


can be provided with removed section


150


after the film web has been folded and separated into individual packages


110


. Other variations are foreseen.




Once separated into individual packages


110


, removed section


150


is present at side panel


122


and the opposite side panel where gussets


125


are provided. The elimination of inner closure profile


132


′,


142


′ on the side panels allows gusset


125


to fold inward and interlock outer closure profiles


132


″,


142


″ present as gusset extension of closure mechanism


133


.




The above specification and examples are believed to provide a complete description of the manufacture and use of particular embodiments of the invention. Many embodiments of the invention can be made without departing from the spirit and scope of the invention.



Claims
  • 1. A flexible package comprising:(a) a first panel, an opposite second panel, a first side panel and an opposite second side panel together defining a package surrounding wall; (b) the first side panel including a fold line dividing the first side panel into a first portion and a second portion; and tic second side panel including a fold line dividing the second side panel into a first portion and a second portion; (c) a bottom attached to each of tile first panel, second panel, first side panel and second side panel, the bottom together with surrounding wall defining an interior for retaining an item therein; (d) a mouth defined by surrounding wall opposite the bottom, the mouth providing access to the package interior; and (e) a reclosable closure mechanism surrounding the mouth, the reclosable closure mechanism comprising a first interlocking closure profile and a second interlocking closure profile; the reclosable closure mechanism comprising: (i) a panel extension of closure mechanism comprising the first interlocking closure profile operably oriented on the first panel and the second interlocking closure profile operably oriented on the second panel, so that the first interlocking closure profile is engageable with the second interlocking closure profile; (ii) a first gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the first side panel, and the second interlocking closure profile attached to the second position of the first side panel, so that the first interlocking closure profile of the first portion is engageable with the second interlocking closure profile of the second portion; and (iii) a second gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the second side panel, and the second interlocking closure profile attached to the second portion of the second side panel, so that the first interlocking closure profile of the first portion is engageable with the second interlocking closure profile of the second portion, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are positioned closer to the package bottom than the panel extension of closure mechanism.
  • 2. The package according to claim 1, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are positioned parallel to the panel extension of closure mechanism.
  • 3. The package according to claim 2, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are displaced from the panel extension of closure profile about 5 to 20 mm.
  • 4. The package according to claim 1, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are angled about 20 to 80 degrees relative to the panel extension of closure mechanism.
  • 5. The package according to claim 4, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are angled about 50 to 70 degrees relative to the panel extension of closure mechanism.
  • 6. The package according to claim 1, wherein the reclosable closure mechanism completely surrounds the mouth in a continuous and contiguous manner.
  • 7. The package according to claim 1, further comprising:(a) a second panel extension of closure mechanism comprising the first interlocking closure profile oriented on the first panel; and (b) a third panel extension of closure mechanism comprising the second interlocking closure profile oriented on the second panel.
  • 8. A flexible package comprising:(a) a first panel, an opposite second panel, a first side panel and an opposite second side panel, together defining a package surrounding wall; (b) the first side panel including a fold line dividing the first side panel into a first portion and a second portion; and the second side panel including a fold line dividing the second side panel into a first portion and a second portion; (c) a bottom attached to each of the first panel, second panel, first side panel and second side panel, the bottom together with the surrounding wall defining an interior for retaining an item therein; (d) a mouth defined by the surrounding wall opposite the bottom, the mouth providing access to the package interior; and (e) a reclosable closure mechanisms surrounding the mouth, the reclosable closure mechanism comprising a first interlocking closure profile having a first mating member and a second interlocking closure profile having a second mating member; the reclosable closure mechanism comprising: (i) a panel extension of closure mechanism comprising the first interlocking closure profile attached to the first panel and the second interlocking closure profile attached to the second panel, the first mating member and the second mating member each extending toward the package interior; (ii) a first gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the first side panel, and the second interlocking closure profile attached to the second portion of die first side panel, the first mating member and the second mating member each extending away from the package interior; and (iii) a second gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the second side panel, and the second interlocking closure profile attached to the second portion of the second side panel, the first mating member and the second mating member each extending away from the package interior.
  • 9. The package according to claim 8, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are positioned closer to the package bottom than the panel extension of closure mechanism.
  • 10. The package according to claim 9, wherein the first gusset extension of closure mechanism and die second gusset extension of closure mechanism are positioned parallel to the panel extension of closure mechanism.
  • 11. The package according to claim 10, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are displaced from the panel extension of closure mechanism about 5 to 20 mm.
  • 12. The package according to claim 9, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are angled 20 to 70 degrees relative to the panel extension of closure mechanism.
  • 13. The package according to claim 8, wherein the reclosable closure mechanism completely surrounds the mouth in a continuous and contiguous manner.
  • 14. A flexible package comprising:(a) a first panel, an opposite second panel, a first side panel and an opposite second side panel, together defining a package surrounding wall; (b) the first side panel including a fold line dividing the first side panel into a first portion and a second portion; and the second side panel including a fold line dividing the second side panel into a first portion and a second portion; (c) a bottom attached to each of the first panel, second panel, first side panel and second side panel, the bottom together with surrounding wall defining an interior for retaining an item therein; (d) a mouth defined by surrounding wall opposite the bottom, the mouth providing access to the package interior; and (e) a reclosable closure mechanism surrounding the mouth, the reclosable closure mechanism comprising a first interlocking closure profile and a second interlocking closure profile; the reclosable closure mechanism comprising: (i) a first panel extension of closure mechanism comprising the first interlocking closure profile operably oriented on the first panel and the second interlocking closure profile operably oriented on the second panel, so that the first interlocking closure profile is engageable with the second interlocking closure profile; (ii) a second panel extension of closure mechanism comprising the first interlocking closure profile oriented on the first panel; (iii) a third panel extension of closure mechanism comprising the second interlocking closure profile oriented on the second panel, so that the second panel extension of closure mechanism is engageable with the third panel extension of closure mechanism; (iv) a first gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the first side panel, and the second interlocking closure profile attached to the second position of the first side panel, so that the first interlocking closure profile of the first portion is engageable with the second interlocking closure profile of the second portion; and (v) a second gusset extension of closure mechanism comprising the first interlocking closure profile attached to the first portion of the second side panel, and the second interlocking closure profile attached to the second portion of the second side panel, so that the first interlocking closure profile of the first portion is engageable with the second interlocking closure profile of the second portion.
  • 15. The package according to claim 14, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are positioned parallel to the first panel extension of closure mechanism.
  • 16. The package according to claim 15, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are positioned parallel to the first panel extension of closure mechanism, the second panel extension of closure mechanism, and the third panel extension of closure mechanism.
  • 17. The package according to claim 14, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are displaced from the first panel extension of closure profile about 5 to 20 mm.
  • 18. The package according to claim 17, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are displaced from the first panel extension of closure profile, the second panel extension of closure mechanism, and the third panel extension of closure mechanism about 5 to 20 mm.
  • 19. The package according to claim 14, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are angled about 20 to 80 degrees relative to the panel extension of closure mechanism.
  • 20. The package according to claim 19, wherein the first gusset extension of closure mechanism and the second gusset extension of closure mechanism are angled about 50 to 70 degrees relative to the panel extension of closure mechanism.
US Referenced Citations (19)
Number Name Date Kind
4332344 Strodthoff Jun 1982 A
4706297 Ausnit Nov 1987 A
4736450 Van Erden et al. Apr 1988 A
5037138 McClintock et al. Aug 1991 A
5080253 Zieke Jan 1992 A
5174445 Mull Dec 1992 A
5275491 Kuge et al. Jan 1994 A
5364189 Kuge et al. Nov 1994 A
5622431 Simonsen Apr 1997 A
5692837 Beer Dec 1997 A
5788378 Thomas Aug 1998 A
6030123 Mitarai Feb 2000 A
6164821 Randall Dec 2000 A
6164826 Petkovsek Dec 2000 A
6186663 Ausnit Feb 2001 B1
6213645 Beer Apr 2001 B1
6296388 Galomb et al. Oct 2001 B1
6325543 Ausnit Dec 2001 B1
6341688 Graham Jan 2002 B1
Foreign Referenced Citations (3)
Number Date Country
2211758 Feb 1998 CA
4006049 Jan 1992 JP
5147663 Jun 1993 JP