U.S. patent application number 09/346443 was filed with the patent office on 2002-01-24 for perforated air-tight seal membrane for a canister containing a particulate-type product.
Invention is credited to DEERING, CURTIS J., MOBERG, SARAH J., SUMPMANN, PATRICK J..
Application Number | 20020009524 09/346443 |
Document ID | / |
Family ID | 23359415 |
Filed Date | 2002-01-24 |
United States Patent
Application |
20020009524 |
Kind Code |
A1 |
DEERING, CURTIS J. ; et
al. |
January 24, 2002 |
PERFORATED AIR-TIGHT SEAL MEMBRANE FOR A CANISTER CONTAINING A
PARTICULATE-TYPE PRODUCT
Abstract
A canister for storing a particulate-type product. The canister
comprises opposing face panels, opposing side panels, a bottom
closure, a top closure and a seal membrane. The opposing side
panels together with the opposing face panels define an upper
opening and a lower opening. The bottom closure is connected to the
opposing face panels so as to encompass the lower opening. The
opposing face panels, the opposing side panels and the bottom
closure combine to define an internal storage region. The top
closure is connected to the opposing face panels so as to encompass
the upper opening. The top closure is configured to provide
selective access to the internal storage region. Finally, the seal
membrane is connected to the inner surfaces of the opposing face
and side panels adjacent to and extending beneath the top closure.
The seal membrane forms a substantially air tight seal at the upper
opening to maintain integrity of particulate-type product disposed
within the internal storage region. In addition, the seal membrane
is configured to provide selective access to the internal storage
region and thereby the particulate-type product. In one preferred
embodiment, the canister is configured to store a food product, for
example a ready-to-eat cereal.
Inventors: |
DEERING, CURTIS J.; (MAPLE
GROVE, MN) ; SUMPMANN, PATRICK J.; (MAPLE GROVE,
MN) ; MOBERG, SARAH J.; (MINNEAPOLIS, MN) |
Correspondence
Address: |
JOHN O TOOLE
GENERAL MILLS INC
PO BOX 1113
MINNEAPOLIS
MN
554401113
|
Family ID: |
23359415 |
Appl. No.: |
09/346443 |
Filed: |
July 1, 1999 |
Current U.S.
Class: |
426/115 |
Current CPC
Class: |
B65D 5/706 20130101;
B65D 5/6623 20130101; B65D 5/14 20130101 |
Class at
Publication: |
426/115 |
International
Class: |
B65D 085/00 |
Claims
What is claimed is:
1. A canister for storing a particulate-type product, the canister
comprising: a main body portion having an inner surface and an
outer surface, the main body portion defining an upper opening and
a lower opening; a bottom closure connected to the main body
portion so as to encompass the lower opening, wherein the main body
portion and the bottom closure combine to define an internal
storage region; a top closure connected to the main body portion so
as to encompass the upper opening, the top closure being configured
to provide selective access to the internal storage region; and a
seal membrane connected to the inner surface of the main body
portion adjacent to and extending beneath the top closure, the seal
membrane forming a substantially air-tight seal at the upper
opening configured to maintain integrity of particulate-type
product disposed within the internal storage region, with the seal
membrane being configured to provide selective access to the
internal storage region and thereby particulate-type product.
2. The canister of claim 1 wherein the main body portion of the
canister includes: opposing face panels, each of the opposing face
panels having an inner surface and an outer surface; and opposing
side panels, each of the opposing side panels having an inner
surface and an outer surface, wherein the opposing face and side
panels define the upper and lower openings, wherein the opposing
face and side panels and the bottom closure combine to define the
internal storage region, wherein the top and bottom closures are
connected to the opposing face panels, and wherein the seal
membrane is connected to the inner surfaces of the opposing face
and side panels adjacent to and extending beneath the top
closure.
3. The canister of claim 2 wherein the seal membrane defines a
plurality of perforations to facilitate selective removal of at
least a portion of the seal membrane from the upper opening to
provide the selective access to the internal storage region and
particulate-type product therein.
4. The canister of claim 3 wherein the plurality of perforations
facilitate removal of only an internal storage region access
portion of the seal membrane from the upper opening.
5. The canister of claim 3 wherein the plurality of perforations
are arranged in a continuous line of perforations.
6. The canister of claim 5 wherein the line of perforations is
straight.
7. The canister of claim 6 wherein the line of perforations extends
substantially perpendicular to and between the opposing face
panels.
8. The canister of claim 3 wherein the plurality of perforations
are arranged in at least two continuous lines of perforations.
9. The canister of claim 8 wherein there are three continuous lines
of perforations.
10. The canister of claim 8 wherein each line of perforations of
the at least two lines of perforations is straight.
11. The canister of claim 10 wherein the at least two lines of
perforations are parallel.
12. The canister of claim 11 wherein the at least two lines of
perforations are closely spaced.
13. The canister of claim 12 wherein the at least two lines of
perforations extend substantially perpendicular to and between the
opposing face panels.
14. The canister of claim 9 wherein each of the three continuous
lines of perforations is V-shaped.
15. The canister of claim 3 wherein the seal membrane includes: a
first substrate having a first surface and a second surface, the
second surface of the first substrate being immediately adjacent
particulate-type product disposed within the internal storage
region; and a second substrate having a first surface and a second
surface, the second surface of the second substrate being affixed
to the first surface of the first substrate, the second substrate
defining the plurality of perforations, the plurality of
perforations extending through the second substrate from the first
surface of the second substrate to the second surface of the second
substrate.
16. The canister of claim 15 wherein the first substrate is a
barrier substrate that forms the air-tight seal at the upper
opening for maintaining integrity of particulate-type product
disposed within the internal storage region.
17. The canister of claim 16 wherein the barrier substrate
includes: an initial residual ply, a lower surface of the first
residual ply defining the second surface of the first substrate
immediately adjacent particulate-type product disposed within the
internal storage region; an intermediate delamination ply; and a
final barrier ply, an upper surface of the of the barrier ply
defining the first surface of the first substrate.
18. The canister of claim 17 wherein the plurality of perforations
facilitate removal of only an internal storage region access
portion of the seal membrane, and wherein upon removal of the
access portion from a remaining portion of the seal membrane, the
access portion separates from the remaining portion of the seal
membrane at the plurality of perforations and the access portion
separates from the inner surfaces of the panels at a junction of
the delamination ply and the residual ply so as to leave the
residual ply attached to the inner surfaces of the panels.
19. The canister of claim 18 wherein the plurality of perforations
are arranged in at least two continuous lines of perforations to
ensure separation of the access portion from the remaining portion
of the seal membrane.
20. The canister of claim 19 wherein there are three continuous
lines of perforations.
21. The canister of claim 19 wherein each line of perforations of
the at least two lines of perforations is straight.
22. The canister of claim 21 wherein the at least two lines of
perforations are parallel.
23. The canister of claim 22 wherein the at least two lines of
perforations are closely spaced.
24. The canister of claim 23 wherein the at least two lines of
perforations extend substantially perpendicular to and between the
opposing face panels.
25. The canister of claim 20 wherein each of the three continuous
lines of perforations is V-shaped.
26. The canister of claim 17 wherein the second substrate is
oriented polypropylene, the barrier ply is high density
polyethylene, the delamination ply is ethylene vinyl acetate, and
the residual ply is metalicine polyethylene.
27. The canister of claim 1 wherein the canister is configured to
store a dry particulate-type product.
28. The canister of claim 1 wherein the canister is configured to
store a particulate-type food product.
29. The canister of claim 1 wherein the canister is configured to
store a particulate-type cereal food product.
30. The canister of claim 1 wherein the canister is configured to
store a particulate-type ready-to-eat cereal food product.
31. The canister of claim 4 wherein the internal storage region
access portion of the seal membrane includes indicia.
32. The canister of claim 18 wherein the internal storage region
access portion of the seal membrane includes indicia.
33. A packaged good article comprising: a canister including: a
main body portion having an inner surface and an outer surface, the
main body portion defining an upper opening and a lower opening; a
bottom closure connected to the main body portion so as to
encompass the lower opening, wherein the main body portion and the
bottom panel combine to define an internal storage region; a top
closure connected to the main body portion so as to encompass the
upper opening, the top closure being configured to provide
selective access to the internal storage region; and a seal
membrane connected to the inner surface of the main body portion
adjacent to and extending beneath the top closure, the seal
membrane forming a substantially air-tight seal at the upper
opening with the seal membrane being configured to provide
selective access to the internal storage region; and a
particulate-type product disposed within the internal storage
region, the seal membrane being configured to maintain integrity of
the particulate-type product disposed within the internal storage
region.
34. The packaged good article of claim 33 wherein the main body
portion of the canister includes: opposing face panels, each of the
opposing face panels having an inner surface and an outer surface;
and opposing side panels, each of the opposing side panels having
an inner surface and an outer surface, wherein the opposing face
and side panels define the upper and lower openings, wherein the
opposing face and side panels and the bottom closure combine to
define the internal storage region, wherein the top and bottom
closures are connected to the opposing face panels, and wherein the
seal membrane is connected to the inner surfaces of the opposing
face and side panels adjacent to and extending beneath the top
closure.
35. The packaged good article of claim 34 wherein the seal membrane
defines a plurality of perforations to facilitate selective removal
of at least a portion of the seal membrane from the upper opening
to provide the selective access to the internal storage region and
the particulate-type product therein.
36. The packaged good article of claim 35 wherein the plurality of
perforations facilitate removal of only an internal storage region
access portion of the seal membrane from the upper opening.
37. The packaged good article of claim 36 wherein the plurality of
perforations are arranged in a continuous line of perforations.
38. The packaged good article of claim 36 wherein the plurality of
perforations are arranged in at least two continuous lines of
perforations.
39. The packaged good article of claim 38 wherein there are three
continuous lines of perforations.
40. The packaged good article of claim 38 wherein each line of
perforations of the at least two lines of perforations is
straight.
41. The packaged good article of claim 40 wherein the at least two
lines of perforations are parallel.
42. The packaged good article of claim 41 wherein the at least two
lines of perforations are closely spaced.
43. The packaged good article of claim 42 wherein the at least two
lines of perforations extend substantially perpendicular to and
between the opposing face panels.
44. The packaged good article of claim 39 wherein each of the three
continuous lines of perforations is V-shaped.
45. The packaged good article of claim 35 wherein the seal membrane
includes: a first substrate having a first surface and a second
surface, the second surface of the first substrate being
immediately adjacent particulate-type product disposed within the
internal storage region; and a second substrate having a first
surface and a second surface, the second surface of the second
substrate being affixed to the first surface of the first
substrate, the second substrate defining the plurality of
perforations, the plurality of perforations extending through the
second substrate from the first surface of the second substrate to
the second surface of the second substrate.
46. The packaged good article of claim 45 wherein the first
substrate is a barrier substrate that forms the air-tight seal at
the upper opening for maintaining integrity of particulate-type
product disposed within the internal storage region.
47. The packaged good article of claim 46 wherein the barrier
substrate includes: an initial residual ply, a lower surface of the
first residual ply defining the second surface of the first
substrate immediately adjacent particulate-type product disposed
within the internal storage region; an intermediate delamination
ply; and a final barrier ply, an upper surface of the of the
barrier ply defining the first surface of the first substrate.
48. The packaged good article of claim 47 wherein the plurality of
perforations facilitate removal of only an internal storage region
access portion of the seal membrane, and wherein upon removal of
the access portion from a remaining portion of the seal membrane,
the access portion separates from the remaining portion of the seal
membrane at the plurality of perforations and the access portion
separates from the inner surfaces of the panels at a junction of
the delamination ply and the residual ply so as to leave the
residual ply attached to the inner surfaces of the panels.
49. The packaged good article of claim 48 wherein the plurality of
perforations are arranged in at least two continuous lines of
perforations to ensure separation of the access portion from the
remaining portion of the seal membrane.
50. The packaged good article of claim 49 wherein each line of
perforations of the at least two lines of perforations is
straight.
51. The packaged good article of claim 50 wherein the at least two
lines of perforations are parallel.
52. The packaged good article of claim 51 wherein the at least two
lines of perforations are closely spaced.
53. The packaged good article of claim 52 wherein the at least two
lines of perforations extend substantially perpendicular to and
between the opposing face panels.
54. The packaged good article of claim 33 wherein the
particulate-type product is dry.
55. The packaged good article of claim 33 wherein the
particulate-type product is a food product.
56. The packaged good article of claim 55 wherein the food product
is a cereal.
57. The packaged good article of claim 55 wherein the food product
is a ready-to-eat cereal.
58. The packaged good article of claim 36 wherein the bottom
closure is a bottom panel connected to the opposing face panels and
the opposing side panels, and wherein the top closure is a top
panel connected to the opposing face panels and the opposing side
panels, the top panel including: a body portion; and a lid movably
secured to the body portion, the lid being positioned above the
access portion of the seal membrane and being configured to provide
selective access to the internal storage region, and the
particulate-type product disposed within, upon removal of the
access portion of the seal membrane.
59. The packaged good article of claim 58 wherein the lid is
configured to be movable from a closed position in which the lid is
substantially contiguous with the body portion to prevent
displacement of product from the internal storage region and an
open position in which at least a portion of the lid is spaced from
the body portion to allow passage of product from the internal
storage region through a pour opening defined by a spacing of the
lid from the body portion and absence of the access portion of the
seal membrane.
60. The packaged good article of claim 36 wherein the internal
storage region access portion of the seal membrane includes
indicia.
61. The packaged good article of claim 48 wherein the internal
storage region access portion of the seal membrane includes
indicia.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to canisters for containing
particulate-type products. In particular, the present invention is
an air-tight membrane that seals an opening within the canister to
ensure freshness of a particulate-type product, such as ready to
eat cereal, contained within the canister. The air tight seal
membrane includes perforations that allow a consumer to easily open
the membrane to gain access to the particulate-type product.
CROSS REFERENCE TO RELATED APPLICATIONS
[0002] This patent application is related to U.S. patent
application Ser. No. ______, entitled "Canister For A
Particulate-Type Product" filed on Jun. 9, 1999, assigned to the
same assignee, and incorporated herein by reference thereto. In
addition, this patent application is related to U.S. patent
application Ser. No. ______, entitled "Double Cut Seal Membrane For
A Canister Containing A Particulate-Type Product"; to U.S. patent
application Ser. No. ______, entitled "Canister With Adhered Paper
Layers For A Particulate-Type Product"; and to U.S. patent
application Ser. No. ______,entitled "Canister With Venting Holes
For Containing A Particulate-Type Product", all filed on even date
herewith, assigned to the same assignee, and incorporated herein by
reference thereto.
BACKGROUND OF THE INVENTION
[0003] An extremely popular form of packaging for dry,
particulate-type products sold to consumers is a paper carton. A
wide variety of different products are packaged in this form,
ranging from consumable items such as cereals and baking goods to
non-consumable items such as laundry detergents and de-icing salt
pellets. Paper cartons present a number of advantages for
manufacturers, retailers and ultimate consumers. For example, paper
cartons are relatively inexpensive to manufacture and provide a
number of flat surfaces onto which product or promotional
information can be displayed. Further, paper cartons normally
assume a rectangular, parallel-piped shape and are therefore
readily stackable. Thus, a retailer can maximize shelf space while
fully displaying the product. Obviously, consumers likewise find
the stackability characteristic desirable for home storage.
Finally, paper cartons are typically sized in accordance with
consumer preferences such that a desired amount or volume of
product is provided with each individual carton.
[0004] Certain types of products are amenable to storage within a
paper carton alone. Generally speaking, however, a paper carton
cannot, in and of itself, prevent degradation of the contained
product to adequately maintain product integrity. For example, a
paper carton likely will not prevent aroma, flavor, moisture,
grease, oil, contaminants, small insects, etc. from passing through
to the contained product. Thus, packaging for virtually all
particulate-type products requires an additional container or liner
disposed within the paper carton. This is especially true for
consumable/food products. A widely accepted technique for
maintaining product integrity is to place the product into an inner
container or bag, that in turn is stored in the carton (commonly
referred to as a "bag in a box"). The bag is typically made of a
plastic or glassine material and is sealed about the product. In
this sealed form, the bag maintains product freshness and
protection against insect infestation, whereas the outer paper
carton provides packaging strength and display. Alternatively, a
double packaging machine (DPM) technique may be employed to form a
plastic or glassine liner within a paper carton. Regardless of the
exact manufacturing process, the resulting packaging configuration
includes a box with an inner liner that serves as a barrier
material. One readily available example of this packaging approach
is a ready-to-eat cereal, although it should be understood that a
wide variety of other products are similarly packaged.
[0005] The box with an inner liner packaging approach is
universally employed. In fact, from a manufacturer's standpoint,
box with an inner liner packaging satisfies a number of important
criteria including low cost, stackability, and large, flat surfaces
for displaying product and promotional information. Unfortunately,
however, consumers may encounter several potential drawbacks. These
possible disadvantages are perhaps best illustrated by reference to
a ready-to-eat cereal product.
[0006] Most ready-to-eat cereal products are sold to consumers in
the box with an inner liner packaging format. Thus, to consume the
cereal, the user must first open the paper carton. In this regard,
a top portion of the carton typically forms at least two flaps
folded on top of one another. The flaps are normally at least
partially adhered to one another with an adhesive. By pulling or
otherwise tearing one flap away from the other, a consumer can then
access the inner bag. An all too common problem is that the
selected adhesive creates too strong of a bond between the flaps,
making flap separation exceedingly difficult. In fact, consumers
may become frustrated with the separation process and resort to
partially or completely tearing both flaps away from the carton. A
related problem is found with a reclosure feature often times
incorporated into the flaps. For example, one of the flaps may be
provided with a tab, whereas the other flap includes a perforated
slot positioned to receive the tab for reattachment of one flap to
the other. Obviously, where the consumer has torn both flaps from
the carton, the reclosure feature is unavailable. Additionally, the
reclosure feature is sometimes difficult for a consumer to
understand and properly use. For example, consumers often tear the
flap in the region of the slot such that the slot can no longer
maintain the tab.
[0007] Once the carton has been opened, the consumer must then open
the inner bag. Once again, this may be a cumbersome procedure. More
particularly, an elongated seal is typically formed and extends
along a top portion of the bag. This seal is broken (or "opened")
by pulling apart opposite sides of the bag. In some instances, the
so-formed seal is too rigid for simple opening. Even further, a
person with reduced dexterity and strength, such as a child or
elderly individual, may have difficulty in breaking an even
relatively light seal. As a result, attempts at opening the inner
bag or liner often result in an undesirable tear along a side of
the bag, causing unacceptable product displacement from the bag, or
an uneven opening. The person may resort to using a knife or
scissors, possibly resulting in bodily harm to the user.
[0008] Once the carton and bag or liner have been opened, the
consumer is then ready to pour the contents from the package. Due
to the flexible nature of the inner bag, the actual opening through
which the product flows is unpredictable. That is to say, the
opening formed in the bag is not uniform or fixed. As a result, a
larger than expected volume of product may unexpectedly pour from
the container. Alternatively, where the inner bag has not been
properly opened, product flow may be too slow. Further, although
the flaps will have been folded upwardly to allow for product flow,
an inherent bias or bend typically causes the flaps to extend
upwardly relative to a top of the carton. Thus, the flaps will
impede a user from visually confirming acceptable product volume
and flow. As a result, the user may not be able to visually
identify an unacceptable product flow rate until after an
undesirably large volume of product has been distributed from the
package. Additionally, the inner bag typically is not secured to
the carton. During a subsequent pouring operation, then, the entire
bag may undesirably be released from the carton. Finally, a
potential concern arises relating to the ease with which a user can
handle the carton during the pouring operation. To this end, the
carton is typically configured to form an elongated rectangular
cylinder having four rigid, ninety-degree corners. This rigid
construction can render grasping of the package difficult,
especially for a user with limited hand dexterity, such as a child
or elderly individual.
[0009] A further consumer concern relating to box with an inner
liner packaging stems from attempts to reclose the package for
subsequent storage of remaining product. Again with reference to
widely employed ready-to-eat cereal packaging, following dispensing
of a portion of the cereal from the package, the user is then
required to roll or fold the top portion of the bag or liner over
onto itself so as to "close" the bag. It is not uncommon for a user
to simply forget to perform this operation. Alternatively, even
where an attempt is made, the bag cannot be resealed and thus
remains at least partially open. Similarly, the bag may
subsequently unroll. Individual cereal pieces may then undesirably
be released from the bag and/or contaminants can enter into the
bag. Regardless, the above-described reclosure feature associated
with the carton normally does not provide an effective barrier to
unexpected product displacement and/or contamination due to
removal, poor design, misuse, lack of use, etc. These concerns are
exacerbated when attempting to store a previously-opened package on
its side or when the package is accidentally dropped. In either
case, because neither the carton nor the bag provides a complete
closure, unanticipated release of cereal from the container may
occur.
[0010] Viewed as a whole, concerns relating to standard box with an
inner liner packaging present numerous opportunities for consumer
dissatisfaction. Essentially, consumer preferences for improvements
to particulate-type product packaging can be separated into four
categories. Consumers prefer that the package be easy to open,
easily and satisfactorily reclosed, facilitate consistent and easy
pouring and is acceptable for "clean" use by a child or others with
limited dexterity. Obviously, consumers further prefer that product
costs be as low as possible, and that certain other beneficial
attributes associated with the existing box with inner liner
packaging continue to be implemented. These existing properties
include package strength, product damage protection, use of high
volume commercially available materials, visual display of product
and promotional material, recycleability, stackability, and
moisture, aroma, contaminant and insect protection.
[0011] Certain packaging schemes are available that address, at
least in part, several of the above-listed consumer preferences.
Unfortunately, however, these packaging techniques entail other
drawbacks, thereby limiting their usefulness. For example, rigid
plastic containers having removable, sealable lids are available.
The greatly increased costs associated with this packaging
configuration prohibit its implementation on a mass production
basis. Similarly, it may be possible to provide the inner bag with
a "zip-lock" sealing feature. While this technique may alleviate
several of the reclosure issues previously described, the zip-lock
design is expensive and often times does not provide a complete
seal.
[0012] Consumers continue to express a high demand for
particulate-type products sold in a paper cartons. However, various
problems associated with use of standard packaging, and in
particular box with an inner liner packages, may diminish
purchasing enthusiasm. In fact, any efforts to satisfy consumer
preferences on a cost effective basis while maintaining the
beneficial properties of current packaging, will likely result in
heightened sales. Therefore, a need exists for a particulate-type
product canister configured to address consumer use preferences. In
particular, there is a need for an inner liner that maintains the
freshness and the integrity of the particulate-type product, by
preventing such things as contaminants, flavor aroma, moisture,
oil, grease, small insects, etc. from passing through to the
contained product, while being relatively easy to open, especially
for a consumer with limited hand dexterity, such as a child or
elderly individual.
SUMMARY OF THE INVENTION
[0013] One aspect of the present invention provides a canister for
storing a particulate-type product. The canister includes a main
body portion, a bottom closure, a top closure and a seal membrane.
The main body portion has an inner surface and an outer surface.
The main body portion defines an upper opening and a lower opening.
The bottom closure is connected to the main body portion so as to
encompass the lower opening. The main body portion and the bottom
closure combine to define an internal storage region. The top
closure is connected to the main body portion so as to encompass
the upper opening. With this in mind, the top closure is configured
to provide selective access to the internal storage region.
Finally, the seal membrane is connected to the inner surface of the
main body portion adjacent to and extending beneath the top
closure. The seal membrane forms a substantially air-tight seal at
the upper opening to maintain integrity of particulate-type product
disposed within the internal storage region. In addition, the seal
membrane is configured to provide selective access to the internal
storage region and thereby particulate-type product. In one
preferred embodiment, the canister is configured to maintain a food
product such as ready-to-eat cereal.
[0014] Another aspect of the present invention relates to a
packaged good article comprising a canister and a particulate-type
product. The canister includes a main body portion, a bottom
closure, a top panel and a seal membrane. The main body portion has
an inner surface and an outer surface. The main body portion
defines an upper opening and a lower opening. The bottom closure is
connected to the main body portion so as to encompass the lower
opening. The main body portion and the bottom closure combine to
define an internal storage region. The top closure is connected to
the main body portion so as to encompass the upper opening. As
such, the top closure is configured to provide selective access to
the internal storage region. The particulate-type product is
disposed and contained within the internal storage region. The seal
membrane is connected to the inner surface of the main body portion
adjacent to and extending beneath the top closure. With the above
combination in mind, the seal membrane forms a substantially
air-tight seal at the upper opening to maintain integrity of the
particulate-type product disposed within the internal storage
region. In addition, the seal membrane is configured to provide
selective access to the internal storage region and thereby the
particulate-type product. In one preferred embodiment, the
particulate-type product is a dry, ready-to-eat cereal.
[0015] During use, a user opens the canister by opening the top
closure and the seal membrane. With the top closure and the seal
membrane opened, the particulate-type product is distributed from
the canister. Following distribution of a desired quantity of
product, the top closure is returned to a closed position,
effectively resealing the canister. The seal membrane prior to
opening maintains the freshness and the integrity of the
particulate-type product by preventing such things as contaminants,
flavor, aroma, moisture, grease, oil, small insects, etc. from
passing through to the particulate-type product contained within
the canister. The seal membrane is designed to be relatively easy
to open, especially for individuals with limited hand
dexterity.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG. 1 is a perspective view of a canister in accordance
with the present invention with a portion cut away;
[0017] FIG. 2 is a top view of the canister of FIG. 1;
[0018] FIG. 3 is a top view of the canister of FIG. 1 with a
movable lid portion removed for clarity illustrating a perforated
air-tight seal membrane of the canister in accordance with the
present invention;
[0019] FIG. 4 is a partial sectional view taken along line 4-4 in
FIG. 3 with a top panel of the canister completely removed for
clarity;
[0020] FIG. 5 is a greatly enlarged, partial sectional view similar
to FIG. 4 showing details of the perforated air-tight seal
membrane;
[0021] FIG. 6 is a top view similar to FIG. 3 of the canister with
an internal storage region access portion of the seal membrane
shown removed;
[0022] FIG. 7 is a partial sectional view taken along line 7-7 in
FIG. 6 with a top panel of the canister completely removed for
clarity;
[0023] FIG. 8 is a greatly enlarged, partial sectional view similar
to FIG. 7 showing details of the perforated air-tight seal
membrane;
[0024] FIG. 9 is a perspective view of the canister in accordance
with the present invention illustrating the movable lid
portion;
[0025] FIG. 10 is an exploded view of a canister in accordance with
the present invention;
[0026] FIG. 11 illustrates a canister in accordance with the
present invention in a pouring operation.
[0027] FIG. 12 is a top view of an alternative air-tight seal
membrane for a canister in accordance with the present invention
with a movable lid portion removed for clarity.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0028] A canister 10 in accordance with the present invention is
shown generally in FIGS. 1-4. The canister 10 includes opposing
face panels 12 (one of which is shown in FIG. 1), opposing side
panels 14 (one of which is shown in FIG. 1), a bottom closure, such
as bottom panel 16 (shown partially in FIG. 1) and a top closure,
such as top panel 18. The opposing face and side panels 12, 14
define a main body portion of the canister 10. As seen best in FIG.
4, each of the opposing face panels 12 and each of the opposing
side panels 14 includes an inner surface 23 and an outer surface
24. As described in greater detail below, the opposing face panels
12 and the opposing side panels 14 are preferably integrally
formed. In this regard, the combination of the opposing face panels
12 and the opposing side panels 14 defines an upper opening 60
(shown partially in FIG. 10) and a lower opening 62 (shown
partially in FIG. 10). The bottom panel 16 is connected to the
opposing face panels 12 and the opposing side panels 14 at a lower
portion thereof. Similarly, the top panel 18 is connected to the
opposing face panels 12 and the opposing side panels 14 at an upper
portion thereof. This configuration provides for an internal
storage region 20 (shown partially in FIG. 1) within which a
particulate-type product 22 is disposed. Notably, directional
terminology such as "bottom," "top," "upper" and "lower" are used
for purposes of illustration and with reference to a desired
upright orientation of the canister 10 as shown in FIG. 1. However,
the canister 10 can be positioned in other orientations such that
the directional terminology is in no way limiting.
[0029] Each of the panels 12-18 is formed from a paper and plastic
material. For example, as seen best in FIGS. 4 and 5, in one
preferred embodiment, a layer of plastic 19 is adhered or laminated
to a layer of paper or paperboard 21 to form each of the panels
12-18. Multiple layers of plastic and/or paper can also be
employed. Alternatively, a plastic material or resin can be
intertwined with the fibers of a paperboard. Regardless of exact
construction, the resulting panels 12-18 are preferably formed to
allow printing or similar displays on an outer surface 24 (shown
generally in FIG. 1) thereof. Thus, the panels 12-18 are preferably
highly similar in appearance to currently available box with an
inner liner cartons. Further, the combination paper and plastic
material is preferably recyclable and provides a functional barrier
to at least one of flavor, aroma, moisture, oil, grease, other
contaminants, insects, etc. The selected plastic must be suitable
for contact with the particulate-type product 22. For example,
where the particulate-type product 22 is a food product, the
selected plastic material must be approved for food contact, as is
well known in the art. Thus, for example, the plastic material can
be polyethylene (low density or high density), chlorinated plastic,
ethylene vinyl acetate, polyester, nylon, polypropylene, etc. Even
further, the plastic can be various co-polymers, blends or a
combination of plastic materials.
[0030] By forming the panels 12-18 from a combination of paper and
plastic material, the resulting canister 10 is semi-rigid (due to
the paper board material), and is able to serve as a functional
barrier (via the plastic material) to at least one of aroma,
flavor, moisture, oil, grease, insects or other contaminants. Thus,
the canister 10 can be used to maintain a wide variety of
particulate-type products. For example, the particulate-type
product 22 can be a food product, and in particular a dry food
product. One specific category of available food products is
cereal-based products (e.g., formed from wheat, oats, rice, etc.).
These include ready-to-eat cereals such as puffs, flakes, shreds,
and combinations thereof. Further, the ready-to-eat cereal product
can include other ingredients such as dried fruits, nuts, dried
marshmallows, sugar coatings etc. Alternatively, other
particulate-type dry food products can be maintained by the
canister 10 such as, for example, popcorn (popped or unpopped),
dried pasta (e.g., spaghetti noodles), rice, beans, pretzels,
potato chips, sugar, dried milk, flour, etc. Even further, other
consumable items such as birdseed can be used as the
particulate-type product 22. Yet even further, non-consumable
particulate-type products can be stored including fertilizer
pellets, dry laundry detergent, dry dishwashing detergent, plant or
vegetable seeds, de-icing salt pellets, etc. Regardless of the
exact product selected for the particulate-type product 22, the
combination paper and plastic material comprising the panels 12 -
18 facilitates the canister 10 maintaining integrity of the product
22 independent of any additional liners or bags. That is to say,
the panels 12-18 provide a barrier to at least one of flavor,
aroma, moisture, oil, grease, insects and other contaminants, etc.
thereby protecting the product 22 and maintaining freshness.
[0031] With the above-described paper and plastic composition of
the panels 12-18 in mind, the opposing face panels 12 and the
opposing side panels 14 are preferably integrally formed.
Alternatively, the opposing face panels 12 and the opposing side
panels 14 can be independently formed and subsequently secured to
one another. Regardless, the opposing face panels 12 and the
opposing side panels 14 are preferably sized to maintain a
preferred volume of the particulate-type product 22. To this end, a
resulting shape of a combination of the opposing face panels 12 and
the opposing side panels 14 preferably corresponds with a shape and
size of "standard" packaging normally associated with the 5 product
22. Thus, where the product 22 is a ready-to-eat cereal, the shape
and size of the opposing face panels 12 and the opposing side
panels 14 is preferably highly similar to the size and shape of a
carton within which the cereal is normally provided. By employing a
similar package size, consumers will be familiar with and readily
identify contents of the canister 10. Thus, in one preferred
embodiment, the opposing face panels 12 each have a height of
approximately 12 inches and width of approximately 8 inches,
whereas the opposing side panels 14 each have a width of
approximately 23/4 inches and a height of approximately 12 inches.
Importantly, a wide variety of other sizes, either greater or
smaller, and shapes are equally acceptable.
[0032] Regardless of the exact size and shape, the opposing face
panels 12 and the opposing side panels 14 combine to form a
plurality of longitudinally extending comers 30. In one preferred
embodiment, four of the longitudinally extending comers 30 are
provided (three of which are shown in FIG. 1). As illustrated in
FIG. 1, each of the longitudinally extending comers 30 is
preferably rounded. Each of the comers 30 is arcuate in transverse
cross-section. By forming the comers 30 in this manner, the
canister 10 facilitates easy handling by a user (not shown). Unlike
a "standard" paper carton design in which the comers are formed as
sharp, ninety-degree angles, the preferred arcuate configuration of
the comers 30 comfortably fits within a user's hand. This preferred
feature allows a user with limited hand dexterity (such as a child
or elderly individual) to easily grasp and maneuver the canister
10. While all of the comers 30 are depicted in FIG. 1 as being
rounded, as few as one of the comers 30 can be so-formed yet still
provide a "easy-to-handle" characteristic. Even further, one or
both of the opposing side panels 14 can be rounded or bowed to
facilitate easy handling.
[0033] The bottom panel 16 is sized in accordance with a
cross-sectional shape of the combination of the opposing face
panels 12 and the opposing side panels 14. Thus, the bottom panel
16 is preferably curvilinear, having relatively straight sides and
arcuate or curved comers.
[0034] The top panel 18 is similarly sized in accordance with a
cross-sectional shape of the opposing face panels 12 in combination
with the opposing side panels 14. As a result, the top panel 18
preferably has relatively straight sides and arcuate or curved
comers. One preferred embodiment of the top panel 18 is shown in
FIG. 2. The top panel 18 is depicted as including a body portion 40
and a lid 42. As a point of reference, the lid 42 is shown in FIG.
2 in a closed position whereby the lid 42 is substantially
contiguous with the body portion 40. In general terms, the lid 42
is preferably configured to be movable relative to the body portion
40. Thus, in one preferred embodiment, the lid 42 is pivotable
relative to the body portion 40 along a pivot point 44. This
pivoting relationship can be created by forming a bend into the top
panel 18. Alternatively, an additional hinge body can be provided.
Conversely, the lid 42 can be configured so as to be entirely
removable from the body portion 40, such as along a perforation
line. In this regard, the body portion 40 can be configured to
include a ridge to which the lid 42 snap fits. Regardless of exact
construction, however, the top panel 18 is preferably configured
such that the lid 42 is maintained in a closed position (FIG. 2) by
frictional engagement with the body portion 40.
[0035] As seen best in FIGS. 3-5, in accordance with the present
invention, the canister 10 further includes an air-tight seal
membrane 70 to enhance product freshness and to provide an
indication of product tampering. For ease of illustration, the
canister 10 is shown in FIG. 3 with the lid 42 (FIG. 2) removed.
The seal membrane 70 is preferably positioned adjacent to and
beneath the top panel 18. The seal membrane is affixed to the inner
surfaces 23 of the opposing face and side panels 12 and 14 so as to
extend across the entire upper opening 60 of the canister 10. The
seal membrane 70 forms an air-tight seal at the upper opening 60
that acts to maintain the integrity and freshness of the
particulate-type product 22 within the internal storage region 20
of the canister 10.
[0036] As seen best in FIG. 5, the seal membrane 70 preferably
includes a first substrate 76 and a second substrate 77. The first
substrate 76 has an upper surface 78 and a lower surface 80. The
lower surface 80 of the first substrate 76 is immediately adjacent
the particulate-type product 22 within the internal storage region
20. The second substrate 77 has an upper surface 79 and a lower
surface 81. The upper surface 79 of the second substrate 77 is
immediately adjacent the top panel 18 and constitutes an outer
surface of the seal membrane 70. The first substrate 76 includes an
initial residual ply 82, an intermediate delamination ply 84 and a
final barrier ply 86. A lower surface of the residual ply 82
defines the lower surface 80 of the first substrate 76. An upper
surface of the barrier ply 86 defines the upper surface 78 of the
first substrate 76. The lower surface 81 of the second substrate 77
is affixed to the upper surface 78 of the first substrate 76 (i.e.,
the upper surface of the barrier ply 86) via a suitable adhesive
88. Alternatively, the second substrate 77 and the first substrate
76 can be joined by a heat lamination process, or the second
substrate 77 may be extruded directly onto the first substrate 76
or vice versa.
[0037] The first substrate 76, and in particular, the barrier ply
86 of the first substrate 76, provides an air-tight, functional
barrier to at least one of flavor, aroma, moisture, oil, grease,
insects, other contaminants, etc. This functional barrier maintains
the integrity and freshness of the particulate-type product 22
contained within the internal storage region 20 of the canister 10
by preventing the passage of these contaminants through to the
product 22. The residual ply 82 serves to attach the seal membrane
70 to the inner surfaces 23 of the opposing face and side panels 12
and 14. In one preferred embodiment, the seal membrane 70 is
attached to the canister 10 via a heat lamination process that
affixes the residual ply 82 to the layer of plastic 19 on the
opposing face and side panels 12 and 14. Alternatively, an
ultrasonic welding process can be used to affix the seal membrane
70 to the canister 10. The delamination ply 84 permits separation
of the remaining portions of the seal membrane 70 (i.e., the second
substrate 77, the adhesive 88, the barrier ply 86 and the
delamination ply 84) from the residual ply 82, to facilitate
selective removal of at least a portion of the seal membrane 70
from the upper opening 60 to provide selective access to the
internal storage region 20 and the particulate-type product 22
contained therein. The functionality of this delamination ply 84 is
explained in detail below.
[0038] In one preferred embodiment, the second substrate 77 is
comprised of oriented polypropylene, the barrier ply 86 is
comprised of high density polyethylene, the delamination ply 84 is
comprised of ethylene vinyl acetate, and the residual ply 82 is
comprised of metalicine polyethylene. This form of the seal
membrane 70 is available from Banner Corporation of Oshkosh,
Wis.
[0039] As seen in FIG. 3, the seal membrane 70 includes an internal
storage region access portion 90 and a main portion 92 (i.e.,
remaining portion). To facilitate removal of the access portion 90
from the main portion 92 so as to provide selective access to the
internal storage region 20 and the particulate-type product 22
contained therein, the seal membrane 70 is preferably formed to
include a perforated region 94 defined by a plurality of
perforations 96. As seen best in FIG. 5 these perforations 96
extend through the second substrate 77 from the upper surface 79 to
the lower surface 81. As such, the functional barrier provided by
the first substrate 76 is unaffected by the perforations 96 since
the perforations 96 do not extend into or through the first
substrate 76. As seen best in FIGS. 6-8, separation of the access
portion 90 from the main portion 92 of the seal membrane 70 occurs
at the perforated region 94 upon light finger pressure applied by a
user directly to the perforated region 94. As such, removal of the
access portion 90 of the seal membrane 70 is particularly amenable
to individuals with limited hand dexterity, such as a child or an
elderly individual. Once separation of the access portion 90 from
the main portion 92 occurs, the access portion 90 can be separated
from the inner surfaces 23 of the face and side panels 12 and 14.
As seen in FIGS. 7 and 8, separation of the access portion 90 from
the face and side panels 12 and 14 occurs at the junction of the
delamination ply 84 and the residual ply 82 leaving the residual
ply 82 attached to the inner surface of the panels 12, 14.
[0040] As seen best in FIGS. 3-5, the plurality of perforations 96
are arranged in at least one continuous, straight line 98 of
perforations that extends substantially perpendicular to and
between the opposing face panels 12 of the canister 10. Preferably,
as illustrated best in FIG. 3, the plurality of perforations 96 are
arranged in three continuous, straight lines 98 of perforations
that extend substantially perpendicular to and between the opposing
face panels 12 of the canister 10. These three lines 98 of
perforations are closely spaced and are substantially parallel to
one another. By providing three lines 98 of perforations as seen
best in FIG. 8, separation of the access portion 90 from the main
portion 92 of the seal membrane 70 at the perforated region 94 is
ensured. Although, FIG. 8 depicts separation (i.e., fracture) of
the access portion 90 from the main portion 92 at the middle line
98 of perforations, it is to be understood that separation (i.e.,
fracture) of the access portion 90 from the main portion 92 can
occur at any one of or multiple combination of the lines 98 of
perforations. The perforations 96 can be imparted to the seal
membrane via any readily available manufacturing technique, such as
die cutting, and can assume a wide variety of forms. In addition,
the lines 98 of perforations can assume a wide variety of forms.
For example, the lines 98 of perforations can assume a curved form,
a single saw tooth shape (i.e., V-shaped) or a series of saw teeth
appearance. The alternative embodiment single saw tooth shape or
V-shape of the lines 98 of perforations is illustrated in FIG. 12.
Additionally, the seal membrane 70 can include indicia 74
configured to provide visual instructions to a user for removal of
the access portion 90 of the seal membrane 70. For example, the
indicia 74 can include words, symbols or illustrations describing
to a user the necessary steps for removal of the access portion 90
from the canister 10.
[0041] By preferably providing the movable lid 42, access to the
internal storage region 20, and thus the particulate-type product
22, is easily gained once the access portion 90 of the seal
membrane 70 is removed. With respect to FIG. 6, movement of the lid
42 to an open position and the removal of the access portion 90 of
the seal membrane 70 generates a pour opening 46 in the top panel
18. Due to the relatively rigid nature of the top panel 18 and the
main portion 92 (i.e., remaining portion) of seal membrane 70, the
pour opening 46 is fixed in terms of shape and size. The pour
opening 46 is preferably configured to be relatively large. For
example, the pour opening 46 preferably has a width approximating a
spacing between the opposing face panels 12 and length of at least
one-fourth a length of the top panel 18, more preferably one-third.
Alternatively, other sizes can also be useful. By providing a
fixed, relatively large configuration for the pour opening 46,
regulated, consistent flow of product through the pour opening 46
can be achieved as described below. In other words, the fixed pour
opening 46 will not change in shape or size, unlike the standard
box with an inner liner package.
[0042] FIG. 6 further depicts one preferred approach for
selectively securing the lid 42 to the body portion 40. In
particular, the top panel 18 is configured to provide a plurality
of tabs 48 extending from the body portion 40. The tabs 48 are
sized to extend inwardly from the body portion 40, so as to engage
the lid 42 (FIG. 2) in the closed position. While three of the tabs
48 are shown, any other number, either greater or lesser, can be
included.
[0043] Movement of the lid 42 to an open position is best shown
with reference to FIG. 9. In one preferred embodiment, the top
panel 18 is configured such that the lid 42 is independently
maintained in the open position such as by friction or other
mechanical means. In other words, a user (not shown) must purposely
move the lid 42 back to the closed position (FIG. 1); the lid 42
will not unexpectedly "close" on its own. As further shown in FIG.
9, the canister 10 preferably includes indicia 50 providing visual
guidance and/or instructions relating to proper operation of the
movable lid 42. The indicia 50 can be formed on any of the panels
12-18, and can extend or be continuous from one panel, such as one
of the opposing face panels 12, to another panel, such as one of
the opposing side panels 14. The indicia 50 may assume a wide
variety of forms, including words, symbols, illustrations, etc. In
addition to providing instructions on operation of the movable lid
42, the indicia 50 can also be configured to draw a consumer's (not
shown) attention to the movable lid feature, thereby potentially
enticing a consumer to purchase the canister 10 and the product 22
disposed therein.
[0044] A preferable embodiment of assembly of the canister 10 is
shown generally in FIG. 10. As previously described, the opposing
face panels 12 and the opposing side panels 14 are preferably
integrally formed. In this regard, a combination of the opposing
face panels 12 and the opposing side panels 14 defines the upper
opening 60 and the lower opening 62. Next, the seal membrane 70 is
affixed to the inner surfaces 23 of the opposing face and side
panels 12 and 14. In one preferred embodiment, the seal membrane 70
is laminated directly to the plastic layer 19 of the panels 12, 14.
Alternatively, the seal membrane 70 can be sealed to the canister
10, or a separate attachment body, such as an adhesive tape, or
other mechanical device, can be used to affix the seal membrane 70.
Next, the top panel 18 is connected to the opposing face panels 12
and the opposing side panels 14 so as to encompass the upper
opening 60. In one preferred embodiment, the top panel 18 is sealed
to the opposing face panels 12 and the opposing side panels 14 at
the upper opening 60. Alternatively, a separate attachment body,
such as an adhesive tape or laminant, or other mechanical device,
can be used to affix the top panel 18. Once assembled, the opposing
face panels 12, the opposing side panels 14 and the top panel 18
combine to define the internal storage region 20 (FIG. 1). A
desired volume of the particulate-type product 22 is then disposed
within the internal storage region 20. Finally, the bottom panel 16
is connected to the opposing face panels 12 and the opposing side
panels 14 so as to encompass the lower opening 62. In one preferred
embodiment, the bottom panel 16 is directly sealed to the panels
12, 14. Alternatively, a separate attachment body, such as an
adhesive tape or laminant, or other mechanical device, can be used
to affix the bottom panel 16. Upon final assembly, the
particulate-type product 22 is sealed within the internal storage
region 20.
[0045] The canister 10 can also be assembled using an alternative
method of assembly. In this alternative method of assembly, the
opposing face panels 12 and the opposing side panels 14 are
preferably integrally formed. As before, the combination of the
opposing face panels 12 and the opposing side panels 14 defines the
upper opening 60 and the lower opening 62. Next, the bottom panel
16 is connected to the opposing face panels 12 and the opposing
side panels 14 so as to encompass the lower opening 62. As before,
the bottom panel 16 is sealed to the opposing face panels 12 and
the opposing side panels 14 at the lower opening 62. Alternatively,
a separate attachment body, such as an adhesive tape or laminant,
or other mechanical device, can be used to affix the bottom panel
16. Once assembled, the opposing face panels 12, the opposing side
panels 14 and the bottom panel 16 combine to define the internal
storage region 20 (FIG. 1). A desired volume of the
particulate-type product 22 is then disposed within the internal
storage region 20. Next, the seal membrane 70 is affixed to the
inner surfaces 23 of the opposing face and side panels 12 and 14.
As before, the seal membrane 70 is laminated directly to the
plastic layer 19 of the panels 12, 14. Alternatively, the seal
membrane 70 can be sealed to the canister 10, or a separate
attachment body, such as an adhesive tape, or other mechanical
device, can be used to affix the seal membrane 70. Finally, the top
panel 18 is connected to the opposing face panels 12 and the
opposing side panels 14 so as to encompass the upper opening 60. As
before, the top panel 18 is directly sealed to the panels 12, 14.
Alternatively, a separate attachment body, such as an adhesive tape
or laminant, or other mechanical device, can be used to affix the
top panel 18. Upon final assembly, the particulate-type product 22
is sealed within the internal storage region 20.
[0046] During use, the lid 42 is maneuvered from the closed
position (FIG. 1) to the open position (FIG. 9). For example, the
lid 42 can be pivoted relative to the body portion 40 (FIG. 2).
Alternatively, the lid 42 can be entirely removed from the canister
10. Next, the access portion 90 is separated from the main portion
92 of the seal membrane 70 along the lines 98 of perforations 96
using finger pressure (FIG. 3). The access portion 90 is then
grasped and separated (i.e., peeled) from the inner surfaces 23 of
the face and side panels 12, 14 at the junction of the of the
delamination ply 84 and the residual ply 82 leaving the residual
ply 82 attached to the inner surface of the panels 12, 14 (FIG. 7).
Following opening of the lid 42 and removal of the access portion
90 of the seal membrane 70, a user (not shown) is then able to pour
a desired quantity of the particulate-type product 22 as shown in
FIG. 11. During this pouring operation, the user is able to
directly confirm product flow rate and volume. In other words,
unlike a "standard" box with an inner liner design, the canister 10
of the present invention does not impede the user's view of the
opening 46. In the open position, the canister 10 does not include
any upwardly extending flaps or similar carton material that would
otherwise obstruct viewing of the opening 46 and thus flow of the
product 22 from the canister 10. Further, as previously described,
the opening 46 is preferably fixed. Thus, a relatively consistent
product flow and volume from the canister 10 can be achieved from
use-to-use. Along these same lines, because the canister 10 does
not require a separate liner or inner bag, the long standing
problem of liner dislodgment during pouring will not occur. In
short, the regulated product flow prevents an unexpectedly large
volume of product from being distributed from the canister 10, and
thereby minimizes spillage. As a point of reference with respect to
FIG. 11, the lid 42 can be positioned or pivoted at a greater angle
relative to the body portion 40 for pouring larger sized product
particles.
[0047] Following distribution of a desired volume of the product 22
from the canister 10, the lid 42 is returned to the closed position
(FIG. 1). Once again, the user is not required to fold or roll a
separate inner liner or bag to effectuate closure. As previously
described, the lid 42 is preferably frictionally secured in the
closed position. Thus, following use and reclosure, the canister 10
provides a relatively complete functional barrier to at least one
of flavor, aroma, moisture, oil, grease, contaminants, insects,
etc., thereby giving a perceived increase in product freshness.
Additionally, by selectively securing the lid 42 in the closed
position, the canister 10 can be placed in any orientation, whether
purposefully or accidentally, without undesired spillage of the
product 22 from the canister 10. In other words, during normal
storage, the canister 10 is typically placed upright, supported by
the bottom panel 16. Alternatively, however, the canister 10 can be
stored in a prone position whereby the canister is supported at one
of the face panels 12, the opposing side panels 14 or the top panel
18. With any of these orientations, the lid 42 remains in the
closed position, thereby preventing accidental release of the
product 22. Similarly, in the event the canister 10 is
inadvertently tipped from the upright position, the lid 42 will
remain in the closed position, again preventing accidental product
spillage.
[0048] The canister of the present invention provides a marked
improvement over previous designs. Pointedly, the canister
eliminates the need for, and associated problems found with, a
separate plastic liner or bag required by currently used box with
an inner liner packaging. Persons with limited hand dexterity are
no longer required to use a hand tool, such as a knife or scissors,
to open the packaging. At the same time, by utilizing the air-tight
seal membrane and a combination paper and plastic material for the
various panels comprising the canister, product integrity is
maintained. Further, preferred features of the canister directly
address consumer preferences. For example, incorporating a movable
lid and easily removable sealing membrane access portion, the
canister easy to open and reclose. Similarly, the movable lid and
the remaining portion of the seal membrane preferably generates a
fixed opening, thereby providing for consistent, regulated product
flow. Additionally, the seal membrane, lid and canister of the
present invention can conveniently be handled by individuals with
limited hand dexterity.
[0049] Although the present invention has been described with
reference to preferred embodiments, workers skilled in the art will
recognize that changes may be made in form and detail without
departing from the spirit and scope of the present invention. For
example, the canister has been depicted as being generally
rectangular in shape. Alternatively, other shapes are equally
acceptable. Also, the canister can contain items in addition to the
particulate-type product. For example, a coupon or premium can be
placed within the canister along with the particulate-type
product.
* * * * *