U.S. patent application number 14/241617 was filed with the patent office on 2016-01-28 for expandable gusseted sleeve for a pouch.
The applicant listed for this patent is General Mills, Inc.. Invention is credited to Ali EL-AFANDI, Todd PURKEY, Christopher SCOTT.
Application Number | 20160023835 14/241617 |
Document ID | / |
Family ID | 51428664 |
Filed Date | 2016-01-28 |
United States Patent
Application |
20160023835 |
Kind Code |
A1 |
EL-AFANDI; Ali ; et
al. |
January 28, 2016 |
EXPANDABLE GUSSETED SLEEVE FOR A POUCH
Abstract
A method for heating an edible product enclosed within a pouch.
The method includes placing the pouch within a sleeve having a wall
extending between an open first end and a second end having a
sleeve gusset. The edible product within the pouch is then heated
causing the pouch to bulge due to an increase in pressure within
the pouch. The bulging pouch pushes against the wall of the sleeve
causing the sleeve to bulge and un-fold the sleeve gusset at the
second end. The increased pressure within the pouch may also unseal
at least one sealed vent on the pouch. Once heated, the pouch is
torn open along one or more tear lines, thereby providing access to
the edible content of the pouch. In some embodiments, the sleeve is
reusable and included in a kit having two or more pouches.
Inventors: |
EL-AFANDI; Ali; (Maplewood,
MN) ; PURKEY; Todd; (Apple Valley, MN) ;
SCOTT; Christopher; (St. Louis Park, MN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
General Mills, Inc. |
Minneapolis |
MN |
US |
|
|
Family ID: |
51428664 |
Appl. No.: |
14/241617 |
Filed: |
May 24, 2013 |
PCT Filed: |
May 24, 2013 |
PCT NO: |
PCT/US13/42564 |
371 Date: |
February 27, 2014 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61771325 |
Mar 1, 2013 |
|
|
|
Current U.S.
Class: |
426/87 ; 426/107;
426/113; 426/232; 426/394 |
Current CPC
Class: |
B65D 81/343 20130101;
Y02W 30/807 20150501; B65D 81/3461 20130101; B65D 81/3446 20130101;
B65D 75/5827 20130101; B65D 75/525 20130101; Y02W 30/80 20150501;
B65D 81/34 20130101; H05B 6/80 20130101 |
International
Class: |
B65D 81/34 20060101
B65D081/34; B65D 75/58 20060101 B65D075/58; B65D 75/52 20060101
B65D075/52 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 1, 2013 |
US |
29447235 |
Claims
1. A method for heating an edible product, comprising: providing at
least one pouch wherein each one of said at least one pouch
comprises an enclosed space containing said edible product; one or
more tear notches on an external section of said at least one
pouch; one or more tear lines along at least a portion of a surface
of said at least one pouch, said one or more tear lines extending
from at least one of said one or more tear notches; and one or more
sealed vents configured to unseal in response to an increase in
pressure within said at least one pouch, said one or more vents
defining at least a portion of a flow path between said enclosed
space of said at least one pouch and an external environment
surrounding said at least one pouch; providing a sleeve comprising
opposed first and second ends, wherein said first end is open; and
said second end includes a sleeve gusset; a wall extending between
said first and said second end, said wall defined at least in part
by an internal and an external surface; and one or more thumb holes
in said wall; inserting at least a portion of said at least one
pouch through said first end thereby placing said portion of said
at least one pouch within said sleeve; and heating said edible
product enclosed within said at least one pouch placed within said
sleeve, thereby bulging at least said portion of said at least one
pouch placed within said sleeve in response to said increase in
pressure within said enclosed space of said at least one pouch;
bulging at least said second end of said sleeve in response to said
bulging of said at least one pouch; and spreading said sleeve
gusset into an un-folded position in response to said bulging of
said second end of said sleeve.
2. The method of claim 1, comprising unsealing at least one of said
one or more sealed vents when said pressure within said at least
one pouch is greater than a predefined value.
3. The method of claim 1, comprising tearing open said at least one
pouch along at least one of said one or more tear lines thereby
defining an opening for accessing said edible product in said
portion of said at least one pouch placed within said sleeve.
4. The method of claim 1, comprising replacing said at least one
pouch placed within said sleeve with another one of said at least
one pouch.
5. The method of claim 4, comprising collapsing and at least
partially folding said sleeve gusset from said un-folded position
prior to heating said edible product contained in said enclosed
space of said at least one pouch.
6. The method of claim 1, comprising generating steam within said
enclosed space of said at least one pouch by heating said edible
product comprising a moisture content of at least 15 percent.
7. The method of claim 6, comprising unsealing at least one of said
one or more sealed vents with said steam.
8. The method of claim 1, comprising selecting said edible product
from the group consisting of a pasteurized product, a refrigerated
product, a thermally processed product, a shelf-stable product, a
product enclosing a filling, a hot filled product, a frozen
product, and any combination of one or more thereof.
9. The method of claim 1, comprising providing a kit comprising at
least one sleeve and two or more pouches.
10. The method of claim 1, wherein one or more of said at least one
pouch is a retort pouch comprising a pouch gusset, the method
comprising positioning said pouch gusset within said sleeve
proximate said sleeve gusset.
11. The method of claim 1, comprising providing said sleeve with at
least one pouch pre-positioned therewithin.
12. The method of claim 1, wherein said at least one pouch is a
heat-in packaging comprising a doneness indicator.
13. The method of claim 12, comprising terminating the step of
heating when said doneness indicator indicates or attains a
predetermined condition.
14. The method of claim 12, comprising changing an intensity of
heating when said doneness indicator indicates or attains a
predetermined condition.
15. The method of claim 1, wherein said sleeve gusset is a lockable
sleeve gusset configured for being locked at any one or more of a
plurality of locked stages including being locked at a folded or
collapsed stage, a fully un-folded or expanded stage, and one or
more stages between said folded or collapsed stage and said fully
un-folded or expanded stage, said lockable sleeve gusset further
configured for being un-locked from any one or more of said
plurality of locked stages, said method comprising locking said
lockable sleeve gusset at one of said plurality of locked stages;
and un-locking said lockable sleeve gusset from a locked stage.
16. A package for heating an edible product, comprising: at least
one pouch enclosing said edible product, said at least one pouch
comprising an enclosed space containing said edible product; one or
more tear notches on an external section of said at least one
pouch; one or more tear lines extending from said one or more tear
notches; and one or more sealed vents configured to unseal in
response to an increase in pressure within said at least one pouch,
said one or more vents defining at least a portion of a flow path
between said internal volume of said at least one pouch and an
external environment surrounding said at least one pouch; a sleeve
comprising opposed first and second ends, wherein said first end is
open and said second end includes a sleeve gusset; a wall extending
between said first and said second end, said wall defined at least
in part by an internal and an external surface; and one or more
thumb holes in said wall; wherein, said sleeve is configured for
receiving through said first end at least a portion of said at
least one pouch; bulging at least a portion of said sleeve at said
second end in response to said increase in pressure within said at
least one pouch received therewithin; and spreading said sleeve
gusset.
17. The package of claim 16, wherein said increase in pressure
within said at least one pouch is in response to heating said
edible product.
18. The package of claim 17, wherein at least one of said one or
more sealed vents unseals when said pressure within said at least
one pouch is greater than a predefined value.
19. The package of claim 18, wherein said at least one pouch is a
heat-in packaging comprising a doneness indicator.
20. The package of claim 19, wherein said heating is terminated
when said doneness indicator exhibits a predetermined
condition.
21. The package of claim 19, wherein an intensity of said heating
is changed when said doneness indicator exhibits a predetermined
condition.
22. The package of claim 16, wherein said at least one pouch is
defined at least in part by first, second and third panels sealed
one to another along adjacent edges; and said at least one pouch
comprises a pouch gusset defined at least in part by said third
panel.
23. The package of claim 22, wherein said portion of said at least
one pouch received within said sleeve includes said pouch gusset;
and said pouch gusset is positioned proximate said sleeve
gusset.
24. The package of claim 15, wherein said at least one pouch is
defined at least in part by opposed first and second panels sealed
one to another along adjacent edges.
25. The package of claim 15, wherein said portion of said at least
one pouch received within said sleeve includes a pouch gusset
positioned proximate said sleeve gusset.
26. The package of claim 15, wherein said enclosed space of said at
least one pouch is defined by two or more panels comprising
laminates suitable for use with edible products.
27. The package of claim 26, wherein at least one of said two or
more panels comprises a material selected from the group consisting
of a susceptor, a shielding, and a combination of a susceptor and a
shielding.
28. The package of claim 16, wherein said at least one pouch is a
retort pouch comprising a pouch gusset; said portion of said at
least one pouch received within said sleeve includes said pouch
gusset; and said pouch gusset is located proximate said sleeve
gusset.
29. The package of claim 16, wherein at least one of said one or
more tear lines divides said at least one pouch into a top section
and a bottom section; said second section is said portion of said
at least one pouch received within said sleeve; said top and bottom
sections are detachable from one another along said at least one
tear line such that a detachment of said top and bottom sections
along said at least one tear line defines an opening for accessing
said edible product within said bottom section retained within said
sleeve.
30. The package of claim 29, wherein an entirety of said top
section extends outwardly and away from said first end of said
sleeve.
31. The package of claim 16, comprising a kit including at least
one sleeve and two or more pouches, wherein said at least one
sleeve is reusable with any one of said two or more pouches.
32. The package of claim 16, wherein said sleeve gusset is a
lockable sleeve gusset configured for being locked at any one or
more of a plurality of locked stages including being locked at a
folded or collapsed stage, a fully un-folded or expanded stage, and
one or more stages between said folded or collapsed stage and said
fully un-folded or expanded stage, said lockable sleeve gusset
further configured for being un-locked from any one or more of said
plurality of locked stages.
Description
TECHNICAL FIELD
[0001] The present disclosure relates to a packaging for edible
products. In particular, the disclosure pertains to an expandable
packaging for heating an edible product within a pouch.
BACKGROUND
[0002] In the interest of convenience, a wide variety of edible
products are pre-packaged in pouches. Generally, the contents of
the pouch are emptied into an eating vessel, e.g., a bowl or a
plate, prior to consumption. Under circumstances such as when a
eating vessel is not available or for the sake of convenience, such
as not having to clean the vessels, it is desirable to provide a
pouch pre-package with items that can be consumed directly from the
pouch. However, pouches typically used for edible products are
cumbersome to handle, unstable when placed on a flat surface, and
generally unwieldy. In particular, pouches containing an edible
product that is warmed or heated before being consumed can be
difficult to handle because the surface of the pouch is essentially
at the same temperature as its content.
[0003] Accordingly, there exists a need for a package that
overcomes the short-comings of prior art packages.
SUMMARY
[0004] A method for heating an edible product enclosed within a
pouch includes providing one or more pouches having an enclosed
space containing the edible product. The pouch includes one or more
tear notches and one or more tear lines extending from the one or
more notches and along at least a portion of a surface of the
pouch. The pouch also includes one or more sealed vents defining at
least a portion of a flow path between the enclosed space and an
external environment surrounding the pouch. The method also
includes providing a sleeve having a first and a second end and a
wall having an internal and an external surface and extending
between the first and the second ends. The first end of the sleeve
is open and the second end of the sleeve includes a sleeve gusset.
The sleeve also includes one or more thumb holes in the wall. In
some embodiments, the method includes inserting at least a portion
of the pouch through the first end of the sleeve and placing it
within the sleeve. Heating the edible product within the pouch will
cause the pouch to bulge due to an increase in a pressure within
the enclosed space. This, in turn, causes the sleeve to bulge and
un-fold the sleeve gusset at the second end. During heating, at
least one of the sealed vents may be forced open by the pressure
built up within the enclosed space. The pouch may be torn open
along the one or more tear lines, thereby providing access to the
edible product contained therein.
[0005] In some embodiments, the pouch initially placed within the
sleeve is removed and replaced by another pouch containing an
edible product. Accordingly, the sleeve and two or more pouches are
provided as a kit wherein the sleeve is reusable. In certain
embodiments, at least one of the one or more sealed vents is forced
open (or unsealed) when the pressure within the enclosed space is
greater than a predefined value. In a non-limiting exemplary
embodiment, the edible product includes a moisture content of at
least 15 percent. Accordingly, steam is generated within the
enclosed space when the edible product is heated. In some such
embodiments, the steam unseals at least one the one or more sealed
vents in the pouch. In certain embodiments, the one or more pouches
are retort pouches having pouch gussets. In such embodiments, the
pouch gusset is positioned proximate the second end of the sleeve,
i.e., proximate the sleeve gusset.
[0006] In some embodiments, the sleeve and at least one pouch are
provided as a package wherein the sleeve surrounds at least a
portion of the pouch. The pouch includes an enclosed space defined
at least partially by opposed first and second panels scaled one to
another along one or more edges, and includes one or more tear
notches on an exterior section thereof. At least one or more tear
lines on an external surface of the pouch extends from at least one
tear notch and partition the pouch into a top section and a bottom
section. The top and bottom sections are thus separable for
accessing an item contained in the enclosed space of the pouch. The
sleeve includes a space defined by a peripheral wall and opposed
first and second ends. The first end of the sleeve is open and
configured for receiving at least a portion of the pouch there
within. In some embodiments, at least a portion of an external
surface of the pouch is adhered to at least a portion of an
internal surface of the peripheral wall of the sleeve. The second
end of the sleeve is at least partially closed by a sleeve gusset
configured for being placed in any one or more positions between a
collapsed or folded state and a partially un-folded state and/or an
expanded or fully un-folded state.
[0007] In certain embodiments, when the package is warmed or heated
in a heating device, the pouch bulges and exerts pressure on the
peripheral wall of the sleeve, causing the sleeve to bulge and
moving the peripheral wall. This movement of the peripheral wall
transitions the sleeve gusset from the collapsed or folded state to
the partially un-folded state and/or the expanded or fully
un-folded state. The pouch is opened and the content accessed by
tearing the external surface of the pouch along the one or more
tear lines. In some embodiments, the pouch includes a vent
providing fluid communication between the enclosed space of the
pouch and the external environment surrounding the pouch.
[0008] In some embodiments, the package includes a susceptor or a
shielding or some combination thereof for regulating the heating
and/or conditioning of the content of the pouch.
[0009] In certain embodiments, pressure applied on opposed sides of
an external surface of the peripheral wall causes the sleeve to
bulge and separate the panels of the pouch apart from one another.
As the sleeve bulges, movement of the peripheral wall transitions
the sleeve gusset from the collapsed or folded state to the
partially un-folded state and/or the expanded or fully un-folded
state. In one such embodiment, it is not necessary to wait until
the sleeve gusset is in the expanded or fully un-folded state
before opening the pouch by tearing the external surface of the
pouch along the one or more tear lines.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1A is a perspective view of an embodiment of a
package;
[0011] FIG. 1B is a top view of the package of FIG. 1A;
[0012] FIG. 2A is a perspective view of a sleeve with a sleeve
gusset in a collapsed state;
[0013] FIG. 2B is a perspective of the sleeve and sleeve gusset of
FIG. 2A at an intermediate partially un-folded state;
[0014] FIG. 3A is a perspective view of the sleeve of FIGS. 2A and
2B with the sleeve gusset in an un-folded state;
[0015] FIG. 3B is a bottom view of the sleeve and sleeve gusset of
FIG. 3A;
[0016] FIG. 3C is a top view of the sleeve and sleeve gusset of
FIG. 3A;
[0017] FIG. 4A is a perspective view of the package of FIG. 1A with
a bulging pouch and a sleeve gusset in an un-folded state; and
[0018] FIG. 4B is a perspective view of the package of FIG. 4A with
an open pouch.
DETAILED DESCRIPTION
[0019] While multiple embodiments are disclosed, still other
embodiments may become apparent to one skilled in the art. The
following detailed description describes only some non-limiting
exemplary embodiments. It should be clearly understood that there
is no intent, implied or otherwise, to limit the embodiments in any
form or manner to those described herein. As such, all alternative
embodiments are considered as falling within the spirit, scope and
intent of the disclosure. The metes and bounds of the disclosure
are defined by the appended claims and any and all equivalents
thereof.
[0020] FIGS. 1A and 1B, respectively, are a perspective view and a
top view of an embodiment of package 10. Package 10 includes pouch
12 and sleeve 14 for receiving at least a portion of pouch 12.
Pouch 12 is illustrated having enclosed space 16 (shown in FIG. 4B)
defined at least partially by opposed first and second pouch panels
18 and 20, respectively, sealed one to another along at least one
or more side edges thereof, e.g., side edges 22 and 24, top edge
26, and a bottom edge (not shown). In some embodiments, enclosed
space 16 of pouch 12 is defined at least partially by three or more
pouch panels, e.g., two side pouch panels and a bottom pouch panel.
A non-limiting exemplary embodiment of one such pouch is the retort
pouch as is well known in the art. In other embodiments, pouch 12
includes a longitudinally and circumferentially extending
contiguous peripheral wall with or without any seams or seals along
its longitudinal extent. In such embodiments of pouch 12, enclosed
space 16 is defined or formed at least partially by sealing each
longitudinally opposed ends of the peripheral wall.
[0021] In some embodiments, pouch 12 includes one or more tear
notches 28 and one or more tear lines 30, illustrated as a broken
line, extending from at least one tear notch 28. While pouch 12 of
FIG. 1A is illustrated having one tear notch 28 on side edge 22 of
pouch 12, and another tear notch 28 on side edge 24 of pouch 12,
this does not always have to be the case. For instance, in a
non-limiting exemplary embodiment, pouch 12 includes only one tear
notch 28 on only one side edge 22 or 24. In other embodiments of
pouch 12, one or more tear notches 28 are elsewhere on pouch 12 and
not necessarily on one or more side edges 22 and 24. In some
embodiments, pouch 12 includes one or more tear notches 28 on
respective external surfaces 32 and 34 of either one or both first
and second pouch panels 18 and 20. In other embodiments, tear
notches 28 are not directly across from one another on side edges
22 and 24 as shown in FIG. 1A, but rather are angularly disposed
from one another. Thus, some embodiments of pouch 12 may include a
plurality of notches 28 in different locations.
[0022] In FIG. 1A, pouch 12 is illustrated having one tear line 30
on external surface 32 of first pouch panel 16 and extending
between tear notches 28 on side edges 22 and 24. However, this does
not always have to be the case. For instance, in a non-limiting
exemplary embodiment, pouch 12 includes two or more tear lines 30,
e.g., one on each external surface 32 and 34, respectively, of
first and second pouch panels 18 and 20. Pouch 12 is illustrated
having one tear line 30 extending essentially as a straight line
from tear notches 28 in a direction generally orthogonal to side
edges 22 and 24. Again, this is not always necessary. In alternate
embodiments, pouch 12 includes one or more tear lines 30 extending
in different directions or angles from any one or more tear notches
28 anywhere on pouch 12. For instance, in a non-limiting exemplary
embodiment, pouch 12 includes one or more tear lines 30 extending
at one or more angles relative to side edges 22 and 24. In other
embodiments, one or more tear lines 30 are curved or shaped like a
wave, e.g., a sine wave, a triangular wave, a square wave, a
rectangular wave, etc.
[0023] One or more tear notches 28 and one or more tear lines 30
are a means for opening pouch 12, and gaining access to the
contents stored within enclosed space 16 of pouch 12. Pouch 12 is
opened by gripping opposing sides of one tear notch 28 and pulling
the gripped sides in opposing directions. Such pulling action
causes a tear in first and/or second pouch panels 18 and 20 along
one or more tear lines 30 on their respective external surfaces 32
and 34. In certain embodiments, tear notches 28 and/or tear lines
30 assist and/or guide cutting open pouch 12 using a cutting
device, e.g., a scissor, a knife, a blade, etc. for cutting the
first and/or second pouch panels 18 and 20. In other embodiments,
pouch 12 does not include tear notches 28 and/or tear lines 30 and
is cut open using the afore-described cutting devices. Yet other
embodiments incorporate alternate devices, means and/or methods for
opening pouch 12, e.g., a zipper, a slider, Ziplock.TM., a
mechanical score, a laser score, etc. Hereinafter, the section of
pouch 12 above one or more tear lines 30 is referred to as top
section 36, and the section of pouch 12 below one or more tear
lines 30 is referred to as bottom section 38. From the foregoing,
it should be apparent that top section 36 can be partially or
completely separated and/or detached from bottom section 38. FIG.
4B provides an illustration of package 10 with top section 36 of
pouch 12 removed. Generally, the contents of pouch 12 will be
retained in bottom section 38.
[0024] In accordance with a non-limiting exemplary embodiment,
pouch 12 is configured for housing an edible product within
enclosed space 16. In some embodiments, first and second pouch
panels 18 and 20 may be formed of one or more layers such as in a
laminated panel, as are well known in the art, suitable for housing
edible products. Accordingly, at least internal surfaces 40 and 42
of respective first and second pouch panels 18 and 20 that are in
contact with the edible product within enclosed space 16 of pouch
12, are of a material known to be suitable for use with edible
products.
[0025] Pouch 12, in some embodiments, contains an edible product
that is to be warmed or heated before being consumed. Accordingly,
un-opened pouch 12 is first placed and then heated in a heating
device, e.g., a microwave or a conventional oven. It should be
apparent that, upon heating, fluids, e.g., moisture, contained
within the edible product will be released as vapor. Also, any air
in enclosed space 16 will be heated. The vapor and/or heated air
within pouch 12 will expand and pressurize the interior of pouch
12, and cause pouch 12 to bulge as illustrated in FIG. 4A.
Accordingly, in some embodiments, pouch 12 includes at least one
vent 44 providing fluid communication between enclosed space 16 and
the external environment surrounding pouch 12. Thus, vapor and/or
heated air within pouch 12 is released through vent 44. In some
embodiments, vent 44 is an automatic pressure relief valve that
opens and permits vapor and/or heated air to vent out (or escape)
from pouch 12 when the pressure within equals or exceeds a
predefined value. In other embodiments, vent 44 is a means, e.g., a
tab, a nick, a notch, etc., that is manipulated by the consumer, or
user, to establish fluid communication between enclosed space 16
and the external environment surrounding pouch 12 prior to placing
package 10 with un-opened pouch 12 inside a heating device.
[0026] In some embodiments, pouch 12 includes a susceptor or a
shielding or some combination thereof for regulating or
facilitating the heating and/or conditioning (e.g., browning) of
the edible product there within. The use of susceptors and/or
shielding for such purposes is well known in the art. For instance,
in a non-limiting exemplary embodiment, susceptors and/or shielding
are used as one or more layers forming at least a portion of a
laminate used in the manufacture of pouch 12, i.e., the laminate
used for either one or both first and second pouch panels 18 and
20.
[0027] In alternate embodiments, pouch 12 contains an edible
product that is served or consumed without being warmed or heated.
The consumer, or user, opens pouch 12 as previously described and
gains access to the edible product thereof. The contents are
consumed directly from the now open pouch 12 either as is or after
mixing with one or more other edible products. For example, in a
non-limiting exemplary embodiment, pouch 12 contains a cereal which
can be consumed directly from pouch 12, or mixed with milk poured
onto the cereal in bottom section 38 of the now open pouch 12.
Alternatively, the contents of pouch 12 can be emptied into an
eating vessel such as a bowl or a plate.
[0028] In view of the foregoing, modifications and/or alternative
embodiments of pouch 12 will become apparent upon reading the
description. All such modifications and alternatives are considered
as being within the scope, intent and spirit of the instant
disclosure.
[0029] Referring back to FIGS. 1A and 1B, a non-limiting exemplary
embodiment of sleeve 14 includes peripheral wall 48, and opposed
first and second sleeve panels 50 and 52, and opposed first and
second ends 54 and 56. Space 46 is at least partially defined by
peripheral wall 48, first and second sleeve panels 50 and 52, and
first and second ends 54 and 56. In the figures, first and second
sleeve panels 50 and 52 are illustrated as fixedly attached one to
another along their respective opposed side edges. In alternate
embodiments, peripheral wall 48 of sleeve 14 is a longitudinally
and circumferentially extending contiguous wall with or without any
seams or seals along its longitudinal extent. First end 54 is open
and sleeve 14 is configured for receiving at least a portion of
bottom section 38 of pouch 12 within space 46 such that the portion
of pouch 12 received within space 46 is surrounded by (or housed
within) sleeve 14. In some embodiments, at least a portion of one
or both external surfaces 32 and 34 of pouch 12 is adhered to at
least a portion of the corresponding one or both adjacent internal
surfaces 58 and 60 of peripheral wall 48.
[0030] FIGS. 2A and 2B are perspective views of an embodiment of
sleeve gusset 62 configured for at least partially closing or
blocking second end 56 of sleeve 14. At least a portion of sleeve
gusset 62 is either contiguous (or conjoined) with or fixedly
attached to first and second sleeve panels 50 and 52. For instance,
in a non-limiting exemplary embodiment, sleeve gusset 62 is
contiguous (or conjoined) with first and second sleeve panels 50
and 52 at least along their respective edges 64 and 66 (or edges 64
and 66 of sleeve 14). As such, if sleeve 14 is disassembled, a
contiguous and unitary, one-piece component will include sections
having first and second sleeve panels 50 and 52, and sleeve gusset
62. In alternate embodiments, at least a portion of sleeve gusset
62 is fixedly attached to one or both first and second sleeve
panels 50 and 52 along respective edges 64 and 66.
[0031] Sleeve gusset 62 includes foldable panel 68 including a
plurality of fold lines 70. As such, foldable panel 68 is
configured for being folded and un-folded along one or more fold
lines 70. This enables sleeve gusset 62 to be placed in any one or
more states or positions between a folded or collapsed state, for
example as illustrated in FIG. 2A, a partially un-folded
intermediate state, for example as illustrated in FIG. 2B, and/or
an expanded or fully un-folded state such as that illustrated in
FIGS. 3A, 3B and 3C. Hereinafter, the folded state of sleeve gusset
62 is referred to as state A, and the fully un-folded state of
sleeve gusset 62 is referred to as state B. Also hereinafter, the
terms "expanded state" and "fully un-folded state" are
interchangeably used for the same meaning and purpose of defining
or indicating that foldable panel 68 of sleeve gusset 62 is
un-folded as illustrated in FIGS. 3A-3C. In some embodiments,
sleeve gusset 62 is configured to be "locked" upon reaching a fully
un-folded state, such as state B. FIGS. 2A and 2B illustrate sleeve
14 and sleeve gusset 62 at different stages of the transition
between states A and B. For the purposes of discussing the
operation of sleeve gusset 62, FIG. 2A could be considered as state
A or a state shortly after the transition begins, and FIG. 2B could
be considered as a partially un-folded intermediate state as sleeve
gusset 62 transitions from state A to state B. As illustrated, at
least an external surface of sleeve 14 includes one or more scored
(or fold) lines 72 for enabling and guiding the bending of
peripheral wall 48 when sleeve gusset 62 transitions between states
A and B. First and second sleeve panels 50 and 52 and sleeve gusset
62 are configured such that at least a portion of edges 64 and 66
are spaced apart and share a common plane. As such, at least a
portion of edges 64 and 66 serve as a base for standing sleeve 14
upright. When sleeve gusset 62 is in state B, at least a portion of
foldable panel 68 extends between and lies in the same plane as
edges 64 and 66, and functions as a base or at least a portion of a
base for standing sleeve 14 upright. In some embodiments, the
extended foldable panel 68 provides at least some stability for
standing sleeve 14 upright and aids in preventing it from tipping
over.
[0032] In certain embodiments, peripheral wall 48 and foldable
panel 68 are configured such that when sleeve gusset 62 is in state
A, pressure applied in the general directions indicated by arrows
74 on internal surfaces 58 and 60 of respective first and second
sleeve panels 50 and 52, will start unfolding sleeve gusset 62.
With continued application of the pressure, sleeve gusset 62 will
un-fold and transition from state A to state B, i.e., sleeve gusset
62 will expand and un-fold. In some embodiments, sleeve gusset 62
will un-fold fully into a locked state. FIGS. 3A, 3B and 3C,
respectively, are a perspective view, a bottom view and a top view
illustrating sleeve gusset 62 in state B.
[0033] As previously described, at least a portion of bottom
section 38 of pouch 12 is received or housed within space 46 of
sleeve 14. Also as previously described, some embodiments of pouch
12 contain an edible product that is warmed or heated before being
consumed, and that the warming or heating of the contents will
cause pouch 12 to bulge. In view of the foregoing description
pertaining to the movement of sleeve gusset 62 from state A to
state B, it should be apparent that the bulging of pouch 12, and by
extension the bulging of bottom section 38 within sleeve 14, will
result in pressure being applied on internal surfaces 58 and 60 of
respective first and second sleeve panels 50 and 52 in the general
directions indicated by arrows 74. Accordingly, sleeve gusset 62
will start un-folding and transition from the collapsed state
(state A) to the fully-unfolded or expanded state (state B) in
response to such applied pressure. This is perhaps best seen in
FIG. 4A which is a perspective view of package 10 of FIG. 1A
illustrated with a bulging and un-opened pouch 12 and sleeve gusset
62 in state B. Pouch 12 can then be opened, as previously
described, for gaining access to the contents thereof as seen in
FIG. 4B wherein package 10 of FIG. 4A is illustrated with pouch 12
open after removal of top section 36. As shown in FIG. 4B, it
should be apparent that in a non-limiting exemplary embodiment,
when sleeve gusset 62 is in state B, sleeve 14 of package 10 is
functionally similar to a bowl and bottom section 38 of the now
open pouch 12 is functionally similar to a liner (or lining) for
the bowl, i.e., sleeve 14.
[0034] In some embodiments, it may not be necessary and/or
desirable to fully un-fold sleeve gusset 62 to state B. For
instance, in a non-limiting exemplary embodiment, it may not be
necessary and/or desirable to warm or heat the contents stored
within enclosed space 16 of pouch 12. In certain embodiments, it
may be necessary and/or desirable to partially warm or heat the
contents stored within enclosed space 16 of pouch 12 in a manner
which does not fully un-fold sleeve gusset 62 to state B. As such,
regardless of whether the contents stored within enclosed space 16
of pouch 12 are warmed/heated or not warmed/heated, the contents
may be accessible once the sleeve gusset 62 and/or pouch 12 are at
least partially un-folded. In some such embodiments, sleeve gusset
62 may be configured for being locked and/or held in any one or
more positions or states between the afore-described folded and
un-folded states A and B, respectively. In a non-limiting exemplary
embodiment, sleeve gusset 62 may be configured to be held or locked
in a partially un-folded state X between states A and B. In some
embodiments, sleeve gusset 62 may be configured for being held or
locked in two partially un-folded states X1 and X2 between states A
and B. As will be apparent to one skilled in the art, sleeve gusset
62 can be configured to be held or locked in a plurality of
partially un-folded states between states A and B. In addition to
the foregoing and/or in the alternative, sleeve gusset 62 may be
configured to lock when it reaches a fully un-folded state, such as
state B. As illustrated in FIG. 2B, or perhaps as shown in FIG. 4B,
it should be apparent that in a non-limiting exemplary embodiment,
when sleeve gusset 62 is in an intermediate state, i.e., in a
partially un-folded state between states A and B, sleeve 14 of
package 10 is functionally similar to a bowl, and bottom section 38
of the now at least partially open pouch 12 is functionally similar
to a liner (or lining) for the bowl, i.e., sleeve 14. Accordingly,
all configurations for providing the described functionality of
locking or holding sleeve gusset 62 in a partially un-folded or
intermediate state and/or in a fully un-folded state are considered
as being within the metes and bounds of the instant disclosure.
[0035] In some embodiments, and as previously described, pouch 12
contains an edible product that is served or consumed without being
warmed or heated. Also as previously described, at least a portion
of bottom section 38 of pouch 12 is received or housed within space
46 of sleeve 14, and at least a portion of one or both external
surfaces 32 and 34 of pouch 12 is adhered to at least a portion of
the corresponding one or both adjacent internal surfaces 58 and 60
of peripheral wall 48. Accordingly, when sleeve gusset 62 is in
state A, pressure applied in the general directions indicated by
arrows 76 on opposing first and second side edges 78 and 80,
respectively, of sleeve 14, will push peripheral wall 48 in the
general directions indicated by arrows 74. Such movement of
peripheral wall 48, and by extension the movement of first and
second sleeve panels 50 and 52, will start un-folding sleeve gusset
62 and concurrently move first and second pouch panels 18 and 20
apart from one another. With continued application of the pressure,
sleeve gusset 62 will un-fold and transition from state A to state
B, i.e., sleeve gusset 62 will expand and un-fold. In some
embodiments, pouch 12 may be opened for accessing the contents
thereof, as previously described, while sleeve gusset 62 is in
state A, or in state B, or in an intermediate state during the
transition between states A and B. Of course, sleeve gusset 62 can
be configured such that upon removal of the pressure applied in the
general direction indicated by arrows 76, sleeve gusset 62 will
maintain or can be retained in any partially un-folded state
between the fore described states A and B.
[0036] In view of the foregoing, it will be apparent that in some
non-limiting exemplary embodiments, one or more tear notches 28
and/or one or more tear lines 30 on pouch 12 will be proximate an
edge of open first end 54 of sleeve 14. In some embodiments, pouch
12 is configured such that upon opening, at least a portion of an
edge of bottom section 38 extends away and outwardly from the edge
of first end 54 of sleeve 14.
[0037] Package 10, in accordance with a non-limiting exemplary
embodiment, includes one or more thumb holes 82 in peripheral wall
48 of sleeve 14. In some embodiments, one or more thumb holes 82
allow for holding package 10 between one or more fingers or between
a thumb and one or more fingers. In other embodiments, one or more
thumb holes 82 is used for holding package 10 and applying pressure
in the general directions indicated by arrows 76 for un-folding
sleeve gusset 62 in state B. While thumb holes 82 are illustrated
as being positioned along or on first and second side edges 78 and
80 of sleeve 14, this does not always have to be the case. For
instance, in some non-limiting exemplary embodiments of sleeve 14,
one or more thumb holes 82 are positioned anywhere on peripheral
wall 48. However, in some embodiments, it may be beneficial or
preferential to position one or more thumb holes 82 on first and
second side edges 78 and 80 of sleeve 14 for providing at least
some isolation or separation from a hot or cold peripheral wall 48.
For instance, in a non-limiting exemplary embodiment, when pouch 12
bulges upon being heated or warmed in a heating device, external
surfaces 32 and 34 of respective first and second pouch panels 18
and 20 will be in close proximity of, or even in contact with,
internal surfaces 58 and 60 of sleeve 14. As such, the temperature
of peripheral wall 48 may be approximately equal to that of the
contents of pouch 12, and one or more thumb holes 82 in first and
second side edges 78 and 80 of sleeve 14 could provide a location
whereat internal surfaces 58 and 60 of peripheral wall 48 are not
in contact with external surfaces 32 and 34 of pouch 12.
[0038] In view of the foregoing, some embodiments of sleeve 14
include a material that is a thermal insulator. In other
embodiments, sleeve 14 is made of one or more material selected
from the group consisting of paperboard, corrugated paper,
corrugated fiberboard, and polymer (polymeric sheet). In yet other
embodiments, sleeve 14 is a laminate and, as such, may or may not
include a thermal insulator.
[0039] Sleeve 14, in a non-limiting exemplary embodiment, includes
a susceptor or a shielding or some combination thereof for
regulating or facilitating the heating and/or conditioning (e.g.,
browning) of the edible product within pouch 12. The use of
susceptors and/or shielding for such purposes is well known in the
art. The susceptor and/or shielding may be placed on internal
surfaces 58 and/or 60 of peripheral wall 48 and/or within
peripheral wall 48. In some embodiments, a susceptor or a shielding
or some combination thereof is placed between at least that portion
of pouch 12 received within space 46 and peripheral wall 48.
[0040] A method for heating an edible product enclosed within a
pouch includes providing one or more pouches 12 having enclosed
space 16 containing the edible product. Pouch 12 includes one or
more tear notches 28 and one or more tear lines 30 extending from
one or more notches 28 along at least a portion of one or more
external surfaces 32, 34 of pouch 12. Pouch 12 also includes one or
more sealed vents 44 defining at least a portion of a flow path
between enclosed space 16 and an external environment surrounding
pouch 12. The method also includes providing sleeve 14 having
opposed first and a second ends 54, 56 and wall 48 having internal
and external surfaces 58, 60 and extending between first and second
ends 54, 56. First end 54 of sleeve 14 is open and second end 56 of
sleeve 14 includes sleeve gusset 62. Sleeve 14 also includes one or
more thumb holes 82 in wall 48. In some embodiments, the method
includes inserting at least a portion of pouch 12 through first end
54 of sleeve 14 and placing it therewithin. Heating the edible
product within pouch 12 will cause bulging of pouch 12 due to an
increase in a pressure within enclosed space 16. This, in turn,
will cause sleeve 14 to bulge and spread or un-fold sleeve gusset
62 at second end 56. Pouch 12 may be torn open along one or more
tear lines 30, thereby providing access to the edible product
contained therein.
[0041] In some embodiments, pouch 12 initially placed within sleeve
14 is removed and replaced by another pouch 12 containing the same
or different edible product. Accordingly, sleeve 14 and two or more
pouches 12 are provided as a kit wherein sleeve 14 is reusable. In
certain embodiment the kit is provided with at least the initial
pouch 12 placed within sleeve 14 and one or more additional pouches
12 for placement within reusable sleeve 14.
[0042] In alternate embodiments, each pouch 12 includes at least
one sleeve 14. In other words, the method includes providing each
pouch 12 preassembled with one sleeve 14.
[0043] In certain embodiments, prior to heating the edible product
within replacement pouch 12, sleeve gusset 62 may be collapsed from
a partially un-folded state or a fully un-folded state to a
different partially un-folded state or a fully folded state. Such
collapsing or partial folding of sleeve gusset 62 can be performed
after initial pouch 12 is emptied and removed from sleeve gusset 62
and before placing replacement pouch 12 within sleeve gusset 62
prior to heating the edible product within replacement pouch 12. Of
course, sleeve gusset 62 may be collapsed or partially folded prior
to removing initial pouch 12. In alternate embodiments, it may not
be necessary to collapse or partially fold sleeve gusset 62 prior
to replacing initial pouch 12 with replacement pouch 12.
[0044] In alternate embodiments, the method includes providing
sleeve 14 in a bulged state either with or without one or more
pouches 12. For example, in a non-limiting embodiment, the bulging
sleeve 14 is provided with one or more pouches 12 pre-placed
therewithin. In one such embodiment, all but one pouch 12 is
removed from the bulging sleeve 14 prior to heating the edible
product within the one pouch 12 that has not been removed
therefrom. In certain embodiments, sleeve 14 when provided in an
initially bulged state may or may not be collapsible into an
un-bulged state. For example, in a non-limiting embodiment, the
initially bulging sleeve 14 is collapsed into an un-bulging state
after removing all but one pouch 12 therefrom and prior to heating
the edible product with pouch 12 still remaining within sleeve
14.
[0045] In alternate embodiments, one or more pouches 12 are
provided separately from one or more sleeve 14. In a non-limiting
exemplary embodiment the one or more pouches 12 are pre-packaged
together with one or more sleeves 14. As in other embodiments, the
one or more sleeves 14 may be provided either in the bulged state
or in the collapsed (or un-bulged) state.
[0046] As can be seen, several packaging options are available
including those described herein and alternate embodiments as will
be apparent to one skilled in the art. All such alternate
embodiments are considered as falling within the metes and bounds
of the claimed subject matter.
[0047] During heating, at least one of sealed vents 44 may be
forced open due to an expansion of the contents of enclosed space
16. In certain embodiments, at least one sealed vent 44 is unsealed
when the pressure within enclosed space 16 is greater than a
predefined value. In a non-limiting exemplary embodiment, the
increase in pressure within pouch 12 may be due to an expansion of
air and/or other fluid within enclosed space 16. In another
non-limiting exemplary embodiment, the edible product includes a
moisture content of at least 15 percent. Accordingly, steam may be
generated within enclosed space 16 when the edible product is
heated. In some embodiments, wherein a moisture sensitive compound
(e.g., a moisture sensitive adhesive) is used in sealing one or
more vents 44, the water vapor in the steam generated from heating
the edible product will unseal at least one sealed vent 44 in pouch
12. In other embodiments, the pressure of the steam unseals at
least one sealed vent 44. In yet other embodiments, a combination
of the moisture content and the pressure of the steam unseals at
least one or more sealed vents 44.
[0048] As will be apparent to one skilled in the art, a fluidic
flow path extending between enclosed space 16 and the external
environment surrounding pouch 12 is necessary for relieving the
increase in pressure within enclosed space 16 when the edible
product is heated. If one or more such flow paths are not provided,
then the pressure within enclosed space 16 may increase to a level
at which pouch 12 is burst open. Accordingly, in some embodiments,
at least one of the one or more sealed vents 44 is opened (or
unsealed) before heating the contents of pouch 12. In a
non-limiting exemplary embodiment, the unsealing is accomplished by
a tear or a cut in the one or more sealed vents 44. In alternate
embodiments, pouch 12 may not include any sealed vents 44. As such,
at least a portion of pouch 12 may be torn or cut open prior to
heating the edible product therewithin. In other embodiments with
or without one or more sealed vents 44, the edible product within
pouch 12 may be heated only to a level that causes pouch 12 to
bulge without bursting open. As such, it may not be necessary to
provide a fluidic flow path extending between enclosed space 16 and
the external environment surrounding pouch 12.
[0049] In certain embodiments, pouch 12 is a retort pouch having a
pouch gusset. In a non-limiting exemplary embodiment, the pouch
gusset of the retort pouch is placed within sleeve 14 and
positioned proximate second end 56 of sleeve 14, i.e., proximate
sleeve gusset 62.
[0050] In some embodiments, pouch 12 is a heat-in packaging
including a doneness indicator as disclosed in U.S. patent
application Ser. No. 12/773,210 filed May 4, 2010, titled "Doneness
Indicator for Heat-In Packaging and Method of Making Same", which
is assigned to the assignee of the instant application and
incorporated herein in its entirety by reference. In a non-limiting
exemplary embodiment, pouch 12 is defined at least in part by the
heat-in packaging wherein the "doneness" indicator, at least in
part, corresponds to a state or level of "doneness" of the contents
of pouch 12. In certain embodiments, the state of "doneness"
corresponds to an indication of whether or not the food is ready
for consumption. For instance, in a non-limiting exemplary
embodiment, the state of "doneness" may be indicative of whether
the content of pouch 12, for example an edible product, is fully
cooked or partially cooked or not cooked. In some embodiments, the
"doneness" indicator may indicate that the contents of pouch 12
have reached a predetermined condition. In some embodiments, the
predetermined condition may be an intermediate state at which the
user and/or consumer is required to take or proceed to the next
step in the warming, heating or cooking stage. For instance, in a
non-limiting exemplary embodiment, the predetermined condition
indicated by the "doneness" indicator may be that at which the
process (e.g., warming, heating or cooking) should be terminated.
In some embodiments, the predetermined condition indicated by the
"doneness" indicator may be that at which an intensity of heating
should be changed. In a non-limiting exemplary embodiment, the
intensity of heating that may be changed may include one or more of
a temperature, a power level in a microwave oven, a firing rate of
a burner in a conventional oven, electrical power supplied to an
electrical resistance heater in a conventional oven, etc. In
certain embodiments, the "doneness" indicator may indicate that the
contents and/or enclosed space 16 within pouch 12 has reached or
attained a predetermined temperature, pressure, or other condition.
All additional and/or alternative embodiments of a "doneness"
indicator, as may become apparent, are considered as being within
the metes and bounds of the instant disclosure
[0051] Non-limiting exemplary embodiments of the edible product
contained within enclosed space 16 include one or more of or a
combination of any of the following: a pasteurized product, a
refrigerated product, a thermally processed product, a shelf-stable
product, a product enclosing a filling therewithin, a hot filled
product, a frozen product, etc. Further non-limiting exemplary
embodiments of the edible product contained within enclosed space
16 include one or more of or a combination of any of the following:
edible products containing grains, rice, pasta, protein, beans,
vegetable, sauce, seasoning, spice, legumes, tofu, meat, meat
alternatives, mashed potatoes, potato pieces, soup, chili, stew,
fruit, puree, sugar, sweetener, granola, nut, yogurt, juice, dairy
ingredient, coffee, tea,
[0052] Various modifications and additions may be made to the
non-limiting exemplary embodiments disclosed hereinabove without
departing from the spirit, scope and intent of the present
disclosure. While the described embodiments refer to particular
features, the instant disclosure is considered to also include
embodiments having combinations of features different from and/or
in addition to those described herein. Accordingly, the scope and
intent of the disclosed embodiments is intended to embrace all
alternatives, modifications, and variations as may become apparent
to one skilled in the art and/or upon reading the described
embodiments. The metes and bounds of the disclosure are defined by
the appended claims and any and all equivalents thereof.
* * * * *