Information
-
Patent Grant
-
6739453
-
Patent Number
6,739,453
-
Date Filed
Monday, September 25, 200024 years ago
-
Date Issued
Tuesday, May 25, 200420 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
-
CPC
-
US Classifications
Field of Search
US
- 206 461
- 206 471
- 206 806
-
International Classifications
-
Abstract
A product package is described for enclosing an item in a non-thermoformed blister-like compartment. Also described are approaches for making the package. According to various aspects of the described package and manufacturing techniques, a blank is cut out of a sheet of see-through plastic material, the blank having a plurality of panels and flange sections such that the blank can be formed, without thermoforming, into a blister-like compartment having a plurality of panels defining an enclosure with a mouth at its base and a flange at the mouth's perimeter. The blank may include printing, cutouts, perforations, or other features. The blank is then folded into a blister-like compartment and loaded with the item to be packaged. A backing is positioned to enclose the loaded blister-like compartment and affixed to the flange.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to improvements in product packaging, and particularly to advantageous aspects of product packaging having a non-thermoformed blister-like compartment and methods for making same.
2. Description of the Prior Art
In the product packaging industry, there is continuing interest in creating packaging that, on the one hand, is useful and visually appealing but that, on the other hand, does not unduly add to the manufacturing costs of the product being sold. One popular type of packaging that is commonly used to package lower-end products is the blister package. In a blister package, a sheet of plastic is thermoformed (i.e., heated and stretched) into a “blister” that is shaped to receive a retail item. The blister typically includes a flange at the outer perimeter of its base that is used to adhere the blister to the front surface of a “card,” which is a flat sheet of cardboard or plastic that serves as a backing for the package.
Blisters are typically manufactured automatically in bulk using a thermoforming machine that is fed by a bulk roll of plastic. After the blisters have been manufactured, they are then transferred into a loading and sealing machine, in which each blister is loaded with a retail product and then heat-sealed to a card. Blisters are commonly manufactured at a facility that is different from the manufacturing facility used to load and seal the finished package. Where this is the case, the thermoformed blisters must be transported to the loading and sealing facility and stored for future use.
Blister packaging is selected to package a particular item for a number of reasons. First, blister packaging is relatively inexpensive. A basic blister package requires only two pieces of material, the thermoformed blister and a card. In addition, a blister package can be loaded and sealed in a high-speed automatic or semi-automatic manufacturing process that minimizes labor costs. Also, because a blister is typically fabricated from a transparent plastic, the retail item inside the package is plainly visible to retailers and their customers. Further, blister packaging provides a security function. Because blister packaging is heat-sealed, a retail customer typically may not remove the retail item from the packaging without visibly damaging the packaging.
However, there are a number of disadvantages associated with blister packaging. One disadvantage is that blister packaging tends to have an unattractive appearance that can be associated in the buying public's mind with a lower-end product. Thus, blister packaging may be undesirable where a manufacturer desires a more upscale image for a particular product. A second disadvantage of blister packaging is that once a blister has been thermoformed, it becomes relatively bulky. The added bulk increases the amount of space required for transportation and storage of thermoformed blisters prior to the time that they are assembled into finished packages.
Further, once the blister has been formed, care must be taken to insure that the blisters do not “nest,” i.e., stick together as they are being fed into the loading and sealing machine. One solution to the nesting problem is to thermoform de-nesting lugs into the blister, which serve to create a gap between adjacent blisters in a stack. However, the de-nesting lugs may detract from the esthetic appearance of the blister. Further, the de-nesting lugs significantly further increase the bulk of a stack of blisters, thus resulting in a further increased need for space in transporting and storing the thermoformed blisters.
Another disadvantage of thermoformed blisters is that they do not lend themselves well to decoration. Although many printing, coating and other types of techniques have been developed over the years for applying a design or text to the surface of a plastic, these techniques are limited in application to a thermoformed blister for a number of reasons. First, thermoforming machines run at their highest efficiency using roll-fed stock. As a practical matter, this eliminates high quality sheet-fed lithographic printing techniques, in which single sheets of plastic are used rather than a bulk roll. Attempts have been made to use roll-fed lithographic and flexographic printing techniques to apply designs to rolls of plastic stock prior to thermoforming, but these have proven to be generally unsatisfactory because of the inability to consistently control the amount of plastic distortion during thermoforming and because of the limited flexibility of the inks used.
Thus, the decoration of blisters has typically been limited to processes that are performed after the blister has been thermoformed, utilizing such techniques as tampo printing, silkscreen, or hot stamping technology. However, because the blister is now a three-dimensional object rather than a two-dimensional sheet, these techniques have proven to be expensive, slow, and limited in their ability to produce high quality multicolor images. Thus, these techniques are usually performed as a one up part in conjunction with thermoforming. Where attempts have been made to print directly onto a thermoformed blister, the printing is typically limited to a blister having a flat front panel, and the printing may only be applied to that panel. No practical techniques have yet been developed for printing directly onto the side panels of a thermoformed blister.
A common technique that is used to decorate a blister package is to use a printed label that is affixed to the blister, or a printed insert that is visible through the blister. The results obtained using labels and inserts are typically not particularly esthetic. Labels have a “stick-on” appearance, and inserts generally “float” behind a blister panel. In addition, labels and inserts entail additional manufacturing costs for materials and printing, and require the manufacturer to acquire and maintain inventory and application equipment over and above that needed for functionality.
A further drawback of blister packages is that they do not lend themselves particularly well to automated die cutting in those situations in which it is desired to provide openings or cutout sections in the finished blister. Because of the unpredictable distortions caused by the thermoforming process, it is not practical to make the cuts prior to thermoforming. However, die cutting an internal opening in a thermoformed blister is typically an awkward and troublesome process that requires specialized off-line tooling and equipment because of the blister's three-dimensional shape. Internal die cutting and stripping are usually done with an expensive two-level die cutting machine or a punch and die set. Using a cutting machine to make a cutout or opening in a side panel of a thermoformed blister has proven to be especially difficult. In addition, in order to indicate the area to be die cut, a thermoformed blister often contains a guide rail, which tends to complicate and distort the face panel, detracting from the esthetic appearance of the finished package.
SUMMARY OF THE INVENTION
These and other issues raised by the prior art are addressed by the present invention, aspects of which provide a package in which an item is enclosed in a non-thermoformed blister-like compartment and methods for making the package. A blank is cut out of the sheet of plastic, the blank having a plurality of panels and flange sections such that the blank can be folded into a blister-like compartment having a flange at its base. The sheet of plastic from which the blank is cut may be printed on, coated, and/or decorated. The blank may also have cutout sections or perforations. The blank is then folded, without thermoforming, into a blister-like compartment and loaded with the item to be packaged. One way to seal the package is to affix a backing to the flange at the base of the blister-like compartment.
Additional features and advantages of the present invention will become apparent by reference to the following detailed description and accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
shows an elevation view of a blank used to form a blister-like compartment in accordance with a first aspect of the present invention.
FIG. 2
shows an elevation view of a card that can suitably be combined with the blank illustrated in
FIG. 1
to fabricate a package according to the present invention.
FIG. 3A
shows an elevation view of a blister-like compartment formed from the blank shown in FIG.
1
.
FIG. 3B
shows a cross section of the blister-like compartment shown in FIG.
3
A through the plane
3
B—
3
B.
FIG. 4A
shows an elevation view of a finished package assembled from the blank and card illustrated in
FIGS. 1 and 2
.
FIG. 4B
shows a bottom view of the package illustrated in FIG.
4
A.
FIG. 5A
shows an elevation view of an alternative design for a blank according to the present invention
FIG. 5B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
5
A.
FIG. 6A
shows an elevation view of a further alternative design for a blank according to the present invention.
FIG. 6B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
6
A.
FIG. 7A
shows an elevation view of a further alternative design for a blank according to the present invention.
FIG. 7B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
7
A.
FIG. 8A
shows an elevation view of a further alternative design for a blank according to the present invention.
FIG. 8B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
8
A.
FIG. 9A
shows an elevation view of a further alternative design for a blank according to the present invention.
FIG. 9B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
9
A.
FIG. 10A
shows an elevation view of a blank, according to a further aspect of the present invention, that is used to form a blister-like compartment in which seams between adjacent panels are covered by flaps.
FIG. 10B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
10
A.
FIG. 11A
shows an elevation view of a blank, according to a further aspect of the present invention, that is used to form a blister-like compartment having an easy-open feature.
FIG. 11B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
11
A.
FIG. 12A
shows an elevation view of an alternative embodiment of a blank used to form a blister-like compartment having an easy-open feature.
FIG. 12B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
12
A.
FIG. 13A
shows a side view of a thermoformed blister package according to the prior art, in which a foot has been added to blister in an attempt to fabricate a standable package.
FIG. 13B
shows a side view of the blister package shown in
FIG. 13A
, in which the package has been stood on end on a level surface.
FIG. 14A
shows an elevation view of a blank, according to a further aspect of the present invention, that is used to form a blister-like compartment having a foot to allow the package to be stood on end.
FIG. 14B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
14
A.
FIG. 15A
shows an elevation view of an alternative embodiment of a blank, according to a further aspect of the present invention, that is used to form a blister-like compartment having a foot to allow the package to be stood on end.
FIG. 15B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
14
A.
FIG. 16A
shows an elevation view of a blank, according to a further aspect of the present invention, that is used to form a blister-like compartment having a stackability feature.
FIG. 16B
shows a side view of a finished package fabricated using the blank shown in FIG.
16
A.
FIG. 16C
shows a side view of three packages similar to the package shown in
FIG. 16B
that have been stacked end to end.
FIG. 17A
shows an elevation view of a blank, according to a further aspect of the invention, that can be used to fabricate a finished package having a plurality of blister-like compartments.
FIG. 17B
shows an elevation view of a second blank that can be used in conjunction with the blank shown in
FIG. 17A
to fabricate a finished package having a plurality of blister-like compartments.
FIG. 17C
shows a perspective view of a finished package fabricated using the blanks shown in
FIGS. 17A and 17B
.
FIG. 18A
shows an elevation view of a blank, according to a further aspect of the invention, that is used to form a finished package having a blister-like compartment having a cutout section therein.
FIG. 18B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
18
A.
FIG. 19A
shows an elevation view of an alternative embodiment of a blank that can be formed into a blister-like compartment having a cutout section therein.
FIG. 19B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
19
A.
FIG. 20A
shows an elevation view of a further embodiment of a blank that can be formed into a blister-like compartment having a cutout section therein.
FIG. 20B
shows a perspective view of a finished package fabricated using the blank shown in FIG.
20
A.
FIG. 21A
shows a diagram of a turntable machine according to a further aspect of the invention for forming, loading, and sealing a product package having a blister-like compartment.
FIG. 21B
shows a diagram of a turntable for use in the turntable machine illustrated in
FIG. 21A
, including four bases mounted thereon.
FIG. 22A
shows an elevation view of a base for receiving a compartment blank in accordance with the present invention.
FIG. 22B
shows a cross section of the base shown in FIG.
22
A through the plane
22
B—
22
B.
FIG. 23A
shows an elevation view of a plug that mates with the base shown in
FIGS. 22A and 22B
to fold a blank into a blister-like compartment.
FIG. 23B
shows a cross section of the plug shown in FIG.
6
A through the plane
23
B—
23
B.
FIG. 24A
shows an elevation view of the blank illustrated in
FIG. 1
positioned on the base shown in
FIGS. 22A and 22B
.
FIG. 24B
shows a cross section of the blank and base shown in FIG.
24
A through the plane
24
B—
24
B.
FIG. 25A
shows an elevation view of the blank and base shown in
FIGS. 24A and 24B
with the blank pressed into the cavity in the base to form a blister-like compartment.
FIG. 25B
shows a cross section of the blister-like compartment and base shown in FIG.
25
A through the plane
25
B—
25
B.
FIG. 26A
shows an elevation view of the blister-like compartment and base shown in
FIGS. 25A and 25B
with an item to be packaged loaded into the blank.
FIG. 26B
shows a cross section of the blister-like compartment, base, and item shown in FIG.
26
A through the plane
26
B—
26
B.
FIG. 27A
shows an elevation view of the card shown in
FIG. 2
, positioned over the blister-like compartment, base, and item shown in
FIGS. 26A and 26B
.
FIG. 27B
shows a cross section of the blister-like compartment, base, item, and card shown in FIG.
27
A through the plane
27
B—
27
B.
FIG. 28
shows a cross section of a press used to apply heat and pressure to the card and blister-like compartment shown in
FIGS. 27A and 27B
to cause the card to adhere to the blister-like compartment.
FIG. 29
shows a cross section of a suction head used to remove a finished package from the base.
FIG. 30A
shows an elevation view of a frame that can be used with the blank and card illustrated in
FIGS. 1 and 2
to fabricate a framed package having a blister-like compartment.
FIG. 30B
shows an elevation view of a framed package fabricated from the frame shown in FIG.
30
A.
FIG. 30C
shows a cross section of the framed package shown in FIG.
30
B through the plane
30
C—
30
C.
FIG. 31
shows a flowchart illustrating a method according to a further aspect of the invention for fabricating a package having a blister-like compartment for holding an item.
DETAILED DESCRIPTION
A first aspect of the invention provides a product package having a blister-like compartment that is fabricated from a sheet of plastic without the use of thermoforming. Because the blister-like compartment is not thermoformed, all of the techniques that are used to decorate, coat, print on, or make cutouts in rolls or individual sheets of plastic may be performed upon the sheet from which the blister-like compartment is fabricated, that is, prior to the forming of the compartment. Thus, for example, a high quality single-sheet lithographic printing process can be used to apply printing that can appear at any location on the blister-like compartment in the finished package. As mentioned above, it is typically only practical to print on the flat front panel of a thermoformed blister. Stamping of a blister-like compartment according to the present invention can be accomplished in-line. Further, a blister-like compartment according to the present invention can be readily die cut and stripped, without the need for specialized die cutting equipment. As described below, it is also possible to implement an “easy-open” feature in a blister-like compartment by making suitable perforations or scores in the sheet of plastic from which the compartment is fabricated.
Another advantage of the present invention over traditional blister packages is that the blister-like compartment is formed from a flat, essentially two-dimensional blank that can be fed directly into a loading and sealing machine. As mentioned above, in the manufacturing of a traditional blister package, a three-dimensional thermoformed blister is typically fed into the loading and sealing machine. The use of a flat blank has a number of advantages over the prior art. First, flat blanks stack at maximum density, significantly decreasing the amount of space required for transportation and storage. Second, because the blanks are flat, the risk of nesting is completely eliminated. There is thus no longer a need for de-nesting lugs that may detract from the overall esthetic appearance of the package.
FIG. 1
shows an elevation view of a first embodiment of a blank
10
, from which a blister-like compartment is formed in accordance with an aspect of the present invention. The blank
10
is cut from a single sheet or a bulk roll of a suitable plastic material
11
(shown in broken lines), including but not limited to such materials as polypropylene, polyvinyl chloride (PVC) amorphous polyethylene terephalate (APET) or polyethyleneterephthalateglycolate (PETG). It should be noted that in
FIG. 1
, the plastic material
11
from which the blank
10
is cut is shown as a rectangle for purposes of illustration. In practice, the material
11
may be any shape that is suitable for receiving decoration, printing, or coating, or other suitable techniques as described herein.
Either side of the sheet
11
from which the blank
10
is cut may be printed on by using a suitable printing technique performed on the sheet or roll of plastic material
11
. For purposes of illustration,
FIG. 1
shows a rectangular shaded portion
26
, representing a printed portion of the plastic material
11
. (As used herein, the terms “print,” “printed,” “printing,” and “printing technique” include all techniques used to apply text, graphics, designs, decorations, or coatings onto a plastic material.) It is contemplated that the printing or coating of the plastic material
11
will be accomplished using a high-speed process. Of course, if desired, it would also be possible to print on or decorate the blank using a less efficient process without departing from the spirit of the invention.
According to a further aspect of the invention, the plastic material
11
used to fabricate the blister-like compartment is see-through, that is, the packaged item is visible from the outside of the finished package through non-printed portions of the blister-like compartment. Thus, it is contemplated that in printing onto the plastic, certain portions of the plastic will typically remain blank to allow some or all of the packaged item to remain visible in the finished package. Of course, in certain special situations, it may be desirable to print on all, or virtually all, of the available area on the panels and flanges of the blister-like compartment.
After the sheet or roll of plastic material
11
has been printed on, the blank
10
is cut from the sheet of plastic material
11
. One suitable technique for cutting the blank is to use a die cutting machine, in which all the cuts are made simultaneously by urging cutting blades that have been suitably positioned on a cutting die through the sheet of plastic. If it is desired to provide cutout sections in the finished blister-like compartment, those cutout sections can be cut at the same time that the blank is cut from the sheet of plastic. In addition, any desired score lines or perforations may also be fabricated into the blank at this manufacturing stage. One suitable technique for scoring PVC or PETG is “soft creasing,” in which score lines are created by exposing the plastic to a radio frequency electromagnetic signal that alters the molecular structure of the plastic, producing a score line. Another scoring technique, known as “microperfing,” is suitable for use with polypropylene or APET. Using a microperfing technique, microscopic perforations are cut into the plastic along the score line by a suitably positioned blade in the cutting die. However, it will be appreciated that other scoring and cutting techniques may also be employed without departing from the spirit of the invention.
As shown in
FIG. 1
, the blank
10
includes a front panel
12
and four secondary panels: a top panel
14
a
, a left side panel
14
b
, a right side panel
14
c
, and a bottom panel
14
d
. The secondary panels
14
a-d
extend from the front panel
12
, and a number of flange sections
16
extending from the secondary panels
14
a-d
. The front panel
12
is separated from the secondary panels
14
a-d
by a first set of score lines
18
, and the secondary panels
14
a-d
are separated from the flange sections
16
by a second set of score lines
20
. The front panel
12
, secondary panels
14
a-d
, and flange sections
16
are shaped such that they can be folded along the score lines
18
and
20
to form a blister-like compartment having a flange at its base. The flange is used to adhere the compartment to a card or other surface.
The blank
10
shown in
FIG. 1
is designed to be folded into a box-shaped compartment. Thus, each of the secondary panels
14
a-d
is folded along a score line
18
towards the same side of the front panel
12
, such that each of the secondary panels
14
a-d
is perpendicular to the front panel
12
and such that the lateral edges
22
of each of the secondary panels
14
a-d
abut those of the immediately adjacent secondary panels
14
a-d
on either side. (The blister-like compartment is illustrated in
FIGS. 3A and 3B
, discussed below.)
It should be noted that in some applications, it may be desirable for there to be an open gap between the lateral edges
22
of adjacent secondary panels
14
a-d
. In this case, the secondary panels
14
a-d
could be folded such that the angle between the front panel
12
and some or all of the secondary panels
14
a-d
is greater than 90 degrees.
The flange sections
16
are folded along score lines
20
so that they are perpendicular to the secondary panels
14
a-d
. In the blank
10
shown in
FIG. 1
, the flange sections
16
are designed to be folded towards the exterior of the blister-like compartment. In addition, the flange sections
16
have beveled lateral edges
24
that are angled such that when the blank has been folded along the first set of score lines
18
and the second set of score lines
20
, the flange sections' lateral edges
24
abut each other forming a substantially continuous flange that is used to adhere the blister-like compartment to a backing, such as a card. Also, the outer perimeter of each flange section in the blank
10
shown in
FIG. 1
includes an optional curved portion
26
that is used to provide an esthetically pleasing contour in the finished package.
It would also be within the spirit of the present invention to design flange sections
16
some or all of which can be folded towards the interior of the blister-like compartment. This would be useful, for example, where it is desired to fabricate a package that can stand on a counter. In such a design, the blister-like compartment would be positioned on a card such that one of the side panels
14
is flush with a bottom edge of the card to allow the package to be stood on its side. (As illustrated in
FIGS. 14A-B
and
15
A-B, discussed below, it is also possible to fabricate a standable package using a “foot” that extends downward from the front panel of the blister-like compartment.)
It should be noted that it is not practical to employ this technique to design a standable carton using a thermoformed blister. First, unlike a blister-like compartment according to the present invention, a thermoformed blister cannot, as a practical matter, be designed with side panels that are perpendicular with the front panel. In a thermoformed blister, the angle between the side panels and the front panel must be greater than 90 degrees to allow the blisters to be stacked one inside the other. Further, in order to allow the thermoformed blister to be released from the forms used to shape the blister, the flange in a thermoformed blister cannot extend towards the interior of the blister.
FIG. 2
shows an elevation view of a card
30
that can be used with the blank
10
shown in
FIG. 1
to fabricate a package having a blister-like compartment according to the present invention. The card
30
is fabricated from cardboard, plastic, or other suitable material, and may be printed on prior to assembly into the finished package. In the present embodiment of the invention, the card
30
is coated with a heat-sealing material for adhesion to the blister-like compartment. At room temperature, the coating of the card
30
is non-adhesive. However, under suitable temperature and pressure conditions, the coating of the card
30
can form a permanent adhesive bond with the flange sections
16
of the blank
10
. Of course, it would be possible to practice the present invention using other types of adhesion and adhesive materials. Also, it would be possible to apply the heat-sealing material to the flange sections
16
instead of to the card
30
, or both to the card
30
and to the flange sections
16
. The top of the card
30
is provided with a hole
32
that is used to hang the finished carton on a display rod or hook.
FIG. 3A
shows an elevation view of a blister-like compartment
34
that has been formed from the blank
10
shown in
FIG. 1
, and
FIG. 3B
shows a cross section of the blister-like compartment through the plane
3
B—
3
B. As shown in
FIGS. 3A and 3B
, the blister-like compartment
34
includes a front panel
12
and secondary panels
14
a-d
which, as shown in
FIG. 3B
, define an enclosure with a mouth
36
at its base. The flange sections
16
have joined together to form a flange around the perimeter of the mouth
36
.
FIG. 4A
shows an elevation view of a finished package
40
fabricated from the blister-like compartment
34
shown in
FIGS. 3A and 3B
, using the card
30
shown in
FIG. 2
as a backing.
FIG. 4B
shows a bottom view of the package
40
. In the exemplary embodiment of the invention shown in
FIGS. 4A and 4B
, the printed portion
26
straddles the front panel
12
and one of the side panels
14
. However, it will be apparent that printing may appear on any of the panels
12
and
14
a-d
and flange sections
16
, as desired, without departing from the spirit of the present invention. It should be noted that the blister-like compartment
34
can be adhered to any desired position on the card
30
. It should also be noted that, as mentioned above, the heat-sealing material may be applied to the card
30
, to the flange sections
16
, or both. In the case of a thermoformed blister according to the prior art, the heat-sealing material can typically only be applied to the card.
The finished package
40
shown in
FIGS. 3 and 4
resembles a thermoformed blister package with a couple of notable differences, beyond any decoration or other printing appearing on the blister-like compartment
34
. First, in the present embodiment of the invention, the blister-like compartment
34
has open seams between each of the side panels
14
, where their outer edges
22
meet. However, if the blank has been carefully cut, folded, and adhered into position, the open seams are generally unnoticeable to a casual observer. It would be possible to close these seams without departing from the spirit of the present invention. For example, as illustrated in
FIGS. 10A and 10B
, described below, it is possible to incorporate flaps into a blank that, when the blank is formed into a blister-like compartment, are folded over the seams to close them. Second, as mentioned above, the secondary panels
14
a-d
of the blister-like compartment
34
are perpendicular to the front panel
12
. As mentioned above, it is impractical to design a thermoformed blister this way because of the need to allow the thermoformed blister to be stacked one inside the other. Thus, the blister-like compartment
34
has a crisper, squarer look than a thermoformed blister. Further, also as mentioned above, the esthetic appearance of the blister-like compartment
34
is not marred by the presence of any de-nesting lugs.
It will be appreciated that the present invention may be used to fabricate packages with blister-like compartments having a wide variety of shapes and configurations, depending upon the design of the compartment blanks and the positioning of the compartments on the backing cards. Examples of various blank shapes are shown in
FIGS. 5A
,
6
A,
7
A,
8
A, and
9
A. Finished packages fabricated from these blanks are shown, respectively, in
FIGS. 5B
,
6
B,
7
B,
8
B, and
9
B. It should be noted that these blanks and packages are provided for purposes of illustration. It will be apparent that the present invention may also be practiced using other designs beyond those illustrated herein.
FIG. 5A
shows an elevation view of a blank
42
similar in shape to the blank
10
shown in FIG.
1
.
FIG. 5B
shows a perspective view of a finished package
44
having a blister-like compartment
46
that has been formed from the blank
42
and then mounted to a card
48
. As shown in
FIG. 5B
, the blister-like compartment
46
has been mounted to the card
48
at an angle to create a different appearance.
FIG. 6A
shows an elevation view of a blank
50
that is somewhat longer and narrower than the blank
10
shown in FIG.
1
.
FIG. 6B
shows a perspective view of a finished package
52
having a blister-like compartment
54
that has been formed from the blank
52
and then mounted to a card
56
. As shown in
FIG. 6B
, the blister-like compartment
54
has a rectangular shape and is mounted to the card
56
at an angle.
FIG. 7A
shows an elevation view of a blank
58
having a tapered profile.
FIG. 7B
shows a perspective view of a finished package
60
having a blister-like compartment
62
that has been formed from the blank
58
and then mounted to a card
64
. As shown in
FIG. 7B
, the blister-like compartment
62
has a trapezoidal front panel.
FIG. 8A
shows an elevation view of a blank
66
having a front panel
68
and side panels
70
with curved edges.
FIG. 8B
shows a perspective view of a finished package
72
having a blister-like compartment
74
that has been formed from the blank
66
and then mounted to a card
76
. As shown in
FIG. 8B
, the blister-like compartment has convex side panels.
FIG. 9A
shows an elevation view of a blank
78
having an extra panel
80
projecting diagonally outward from the front panel
82
between a side panel
84
and the top panel
86
.
FIG. 9B
shows a perspective view of a finished package
88
having a blister-like compartment
90
that has been formed from the blank
78
and then mounted to a card
92
. As shown in
FIG. 9B
, the extra panel
80
in the blank
78
appears as a truncated corner of the blister-like compartment
90
.
As mentioned above, in the finished package shown in
FIGS. 4A and 4B
, there are open seams at the corners of the blister-like compartment
42
where the side panels
14
meet. As further mentioned above, it is it possible to design a blank in accordance with the present invention in which these seams are covered.
FIG. 10A
shows a blank
94
having four flaps
96
that, in forming a blister-like compartment, are folded along score lines
98
such that in the finished package the flaps
96
abut the inner surface of the secondary panels
100
a-d
. The flaps may be used, for example, as a dust preventative or corner strengthening device.
FIG. 10B
shows a perspective view of a package
102
that has been fabricated from the blank
94
, which has been formed into a blister-like compartment
104
and mounted onto a backing card
106
. The flaps
96
may be sealed to the inner surface of the secondary panels
100
a-d
or may alternatively be left unsealed.
As further mentioned above, the present invention may be used to implement an easy-open feature in the finished package.
FIG. 11A
shows a blank
108
incorporating an example of an easy-open feature. The blank
108
includes two perforations
110
and
112
. The first perforation
110
lies along the score line between the front panel
114
and a side panel
116
. The second perforation
112
lies on the score line between the side panel
116
and the contiguous flange section
118
. These perforations
110
and
112
may be cut into the blank
108
as part of the process of cutting the blank
108
out of a sheet of plastic. It will be seen that the portion of the side panel
116
lying between the perforations
110
and
112
functions as a tear strip. The top of the side panel
116
is slightly extended to provide a finger grip
119
for the tear strip.
FIG. 11B
shows a perspective view of a finished package
120
that has been fabricated from a blister-like compartment
122
that has been formed from the blank
108
and mounted to a backing card
124
. As shown in
FIG. 11B
, the tear strip
126
has been partially pulled away from the blister-like compartment
122
by breaking the perforations, thereby exposing the interior of the blister-like compartment
122
, and allowing access to the product contained with the compartment
122
. If desired, instructions as to how to open the finished package
120
using the easy-open feature may be printed directly onto the blister-like compartment
122
or onto the backing card
124
.
It should be noted that conventional blisters are commonly provided with perforations on the backing card to facilitate opening the package. These perforations can be unreliable, resulting in irregular tearing of the card and making the opening of the package difficult. By way of contrast, the perforation technique illustrated in
FIGS. 11A and 11B
can be used to locate perforations at any desired location on the blister-like compartment
122
. This is desirable because plastic typically tears more cleanly than cardboard.
FIG. 12A
shows an elevation view of a blank
128
in which the perforations
130
and
132
are located on either side of the front panel
134
. Thus, in essence, the entire front panel
134
becomes a tear strip.
FIG. 12B
shows a perspective view of a finished package
136
having a blister-like compartment
138
formed from the blank
128
that has been mounted to a backing card
140
. In
FIG. 12B
, the upper portion
142
of the front panel
134
has been tom away from the blister-like compartment along the perforations. The entire panel
134
can be tom away or, if desired, the panel
134
can be perforated such that only a partial area of the panel
134
is torn away. This could be used, for example, to create a dispenser. If desired, the top of the panel
134
may be extended to provide a finger grip, similar to the finger grip
119
shown in
FIGS. 11A and 11B
.
As mentioned above, it is sometimes desirable to design a blister package that is standable, that is, that can be stood on one end of the blister. However, because of the thermoforming technique used to fabricate conventional blisters, the blister must include a draft angle of greater than 90° to allow the blister to be released from the forming device.
FIG. 13A
shows a side view of a conventional blister package
144
that includes a thermoformed blister
146
and a backing card
148
. The draft angle is illustrated as angle θ. Attempts have been made to create a standable blister by forming a small foot
150
at the base of the blister
146
. However, the angle of the foot
150
is limited to 90° or greater, again because of the thermoforming process. This is problematic. Because of the flange used to adhere the blister
146
to the card
148
, there must be a small gap
152
between the bottom of the blister
146
and the bottom of the card
148
. However, because the angle of the foot
150
is limited to 90° or greater, the foot
150
cannot be angled to bridge this gap
152
.
FIG. 13B
shows a side view of the package
144
shown in
FIG. 13A
that has been placed onto a flat surface
154
. As is apparent from
FIG. 13B
, even with the foot
150
, the package has a tendency to tip forward and is easy to topple.
FIG. 14A
shows an elevation view of a blank
156
according to a further aspect of the present invention including a foot
158
that has been cut between the front panel
160
and
162
.
FIG. 14B
shows a perspective view of a finished package
164
that has been fabricated from the blank
156
that has been formed into a blister-like compartment
166
and then mounted onto a backing card
168
. As shown in
FIG. 14B
, when the bottom panel
162
is folded into position, the foot
158
extends downward from the front panel
160
. It will be apparent that the blank
156
can be designed in such a way that the foot
158
is of the correct length to bridge any gap between the bottom panel
162
of the blister-like compartment
166
and the bottom of the backing card
168
. Thus, when stood on end, the finished package
164
is level. If desired, it would also be possible to make the foot
158
slightly longer so that the finished package
164
tilts backward slightly when stood on end. This could be useful, for example, to provide stability for a package
164
containing a heavy item.
FIG. 15A
shows an elevation view of an alternative design for a blank
170
that can be used to create a standable package. The blank
170
includes a pair of feet
172
and
174
. The left foot
172
is cut into the blank at the point where the front panel
176
, left-side panel
178
and bottom panel
182
meet. The right foot
172
is cut into the blank at the point where the front panel
176
, right-side panel
180
and bottom panel
182
meet. The feet
172
and
174
are oriented in the blank
170
such that when the blank
170
is formed into a blister-like compartment, the feet
172
and
174
project downward from the bottom corners of the front panel
176
. As further illustrated in
FIG. 15A
, the score line
184
between the front panel
176
and the left-side panel
178
runs down the center of the left foot
172
, and the score line
186
between the front panel
176
and the right-side panel
180
runs down the center of the right foot
174
. Thus, it will be seen that when the blank
170
is formed into a blister-like compartment the right and left feet
172
and
174
will be folded along score lines
184
and
186
. This increases the strength of the feet
172
and
174
. However, it should be noted that it would also be possible, without departing from the spirit of the invention, to design a package with a pair of feet that are not folded.
FIG. 15B
shows a perspective view of a finished package
188
, which has been fabricated by forming the blank
170
into a blister-like compartment
190
and mounting it to a backing card
192
. As shown in
FIG. 15B
, the feet
172
and
174
extend downward from the front panel
176
of the blister-like compartment
190
to level the package
188
when it is stood on end.
According to a further aspect of the invention, feet are used to provide a stackability feature in the finished package.
FIG. 16A
shows an elevation view of a blank
194
having a foot
196
cut into the blank
194
between the front panel
198
and the bottom panel
200
and a stacking tab
202
cut into the blank
194
between the front panel
198
and the top panel
204
.
FIG. 16B
shows a side view of a finished package
206
that has been fabricated by forming the blank
194
into a blister-like compartment
208
and mounting it to a backing card
210
. As shown in
FIG. 16B
, the foot
196
extends downward from the front panel
198
, leveling the finished package when it is in an upright position. The stacking tab
202
extends upward from the front panel
198
.
FIG. 16C
shows a side view of three finished packages
206
a
,
206
b
and
206
c
that have been arranged to illustrate the stackability feature. The bottom package
206
a
is resting on a level surface (not shown). The middle package
206
b
is stacked on top of the bottom package
206
a
. The top package
206
c
has been partially removed from the stack for purposes of illustration. As shown in
FIG. 16C
, the top package
206
c
is stacked on top the middle package
206
b
by positioning the top package
206
c
on top of the middle package
206
b
with the top package's backing card
206
c
resting on the middle package's top compartment panel
204
b
, such that the rear surface of the top package's backing card
206
c
abuts the front surface of the middle package's backing card
206
b
. At the same time, the top package's bottom compartment panel
200
c
rests on top of the middle package's stacking tab
202
b
, such that the rear surface of the top package's foot
196
c
abuts the front surface of the middle package's stacking tab
202
b
. It will be apparent that other designs can be used to implement a stackability feature without departing from the spirit of the invention.
According to a further aspect of the invention, it is also possible to fabricate a single package having a plurality of blister-like compartments.
FIGS. 17A and 17B
show elevation views of two blanks
208
and
210
. It should be noted that the blank
208
shown in
FIG. 7A
is designed to be formed into a blister-like compartment having an open top with a finished, reinforced border. Thus the blank
208
includes a finishing strip
212
that, in forming a blister-like compartment, is folded such that it abuts the inner surfaces of the front panel
214
and two side panels
216
. In order to allow the finishing strip
212
to lie flush against the front and side panels without material gathering at the corners, two diamonds
218
have been cut into the finishing strip
212
. These diamonds
218
may also serve an esthetic function in the finished package. Shapes other than diamonds
218
may be used without departing from the spirit of the present invention. The finishing strip
212
has a primary score line
222
that is used to fold the strip
212
such that it abuts the front and side panels
214
and
216
. The finishing strip also has a pair of secondary lines
220
for folding the strip into a box shape in the interior of the blister-like compartment. As shown in
FIG. 17A
, each diamond
218
is cut into the strip such that lies along a secondary score line
220
, and such that it has a vertex abutting the primary score line
222
. This arrangement allows the blister-like compartment in the finished package to have sharp corners.
FIG. 17C
shows a perspective view of a finished package
224
that has been fabricated by forming the two blanks
208
and
210
into two blister-like compartments
226
and
228
and mounting them onto a backing card
230
. Although the two compartments
226
and
228
are show mounted side to side, they may be arranged in any number of configurations without departing from the spirit of the present invention. As mentioned above, the compartment
226
formed from the blank
208
shown in
FIG. 17A
has an opening
232
instead of a top panel.
As mentioned above, a further aspect of the invention is directed to a package having a blister-like compartment with one or more cutout sections. In one embodiment of the invention, each of the cutout sections is cut out of a blank prior to being formed into the blister-like compartment.
FIGS. 18A
,
19
A and
20
A show elevations views of blanks
234
,
235
, and
236
having respective cutout sections
237
,
238
, and
239
.
FIGS. 18B
,
19
B, and
20
B show perspective views of finished packages
240
,
241
and
242
that have been fabricated, respectively, by forming blanks
234
,
234
, and
236
into blister-like compartments
243
,
244
, and
245
, and mounting the compartments onto backing cards
246
,
247
, and
248
.
As shown in
FIGS. 18B and 19B
, a cutout section may straddle the front and top compartment panels (
FIG. 18B
) or the front and side compartment panels (FIG.
19
B). As shown in
FIG. 20B
, a cutout section may also be shaped as a truncated corner. Because the blister-like compartment is formed without heat from a blank that is cut from a plastic sheet, it is possible to position cutout sections anywhere on the blister without additional tooling costs. These cutout sections can function, for example, as touch, access, or product locator holes. It should be noted that the depicted cutout sections are shown for purposes of illustration only and are not intended to limit the scope of the present invention. It will be apparent that various cutout designs can be used without departing from the spirit of the present invention.
One feature of the present invention is that it lends itself to the types of automated and semi-automated processes that are currently used to load and seal thermoformed blister packages. For example, as described in detail below, it is possible to use a Koch turntable machine, KDT-NP-1000/4/50(70), which has been modified in accordance with a further aspect of the invention, to form, load, and seal packages similar to the packages described above and illustrated in
FIGS. 1-20B
. Thus, it is possible to form, load, and seal packages having non-thermoformed blister-like compartments in substantially the same amount of time that is required to load and seal packages having thermoformed blisters.
FIG. 21A
shows a diagram of a turntable machine
250
that has been modified in accordance with a further aspect of the present invention. As its name implies, a turntable machine
250
uses a turntable
252
to move a package through the various stages of the assembly process. As shown in
FIG. 21A
, the turntable machine
250
is configured to include four separate stations, identified for the purposes of discussion as Station A through Station D.
FIG. 4B
shows a diagram of the turntable
252
, which includes four quadrants
254
a-d
. Each quadrant has mounted therein a base
270
having a cavity
272
for forming and holding a blister-like compartment, as described in greater detail below. At regular intervals, the turntable
252
rotates a quarter turn around its central axis
255
in the indicated direction, causing each base and its contents to advance to the next station in the assembly process. This allows the four stations to be operated simultaneously on four separate packages that are at various stages of completion. A brief summary of the operations performed at the four stations is provided, with reference to
FIGS. 21A and 21B
, followed by a more detailed explanation.
Station A: A blank is removed from a hopper
256
and positioned onto a base
270
over a cavity
272
. The blank is then folded into the shape of the final compartment by pressing the blank against the interior walls of the cavity
272
. The blank remains seated in the cavity
272
for the remainder of the loading and sealing process.
Station B: The item to be packaged is removed from a stock
258
and then loaded into the folded blank. This process may be performed automatically by a loading machine or may also be performed manually. As mentioned above, the blank is advanced automatically from station to station by the turntable
252
, which makes a quarter-rotation at regular intervals. Thus, if the loading process is performed manually, the worker must keep up with the movement of the turntable
252
.
Station C: A card is removed from a hopper
260
and positioned over the loaded compartment. As mentioned above, in the present embodiment of the invention, the card has a heat-sealing coating.
Station D: A press applies heat and pressure to the card, causing an adhesive bond to form between the card and an adhesive flange on the loaded compartment.
Station A: The finished package is lifted out of the cavity and placed into a completion bin
262
. A fresh blank from the hopper
256
is then positioned onto the now-vacant base
270
to start another production cycle.
FIG. 22A
shows an elevation view of a base
270
used for folding a blank into a compartment and for holding the folded compartment in position for loading and sealing. As described above, the turntable
252
shown in
FIG. 21B
includes four such bases
270
to allow the production process to be conducted in tandem.
FIG. 22B
shows a cross section of the base
270
shown in FIG.
22
A through the plane
22
B—
22
B. The base
270
is fabricated from metal or other suitable material and includes a cavity
272
, the inner surface of which bears the shape of the blister-like compartment in the finished package. The base
270
further includes a flat upper surface
274
that, as described and illustrated below, is used for forming the adhesive flange of the blister-like compartment.
FIG. 23A
shows an elevation view of a plug
276
, located at Station A, that is used in conjunction with the base
270
shown in
FIGS. 22A and 22B
to fold a blank into a blister-like compartment.
FIG. 23B
shows a cross section of the plug
276
shown in FIG.
23
A through the plane
23
B—
23
B. The plug
276
includes a protruding member
278
and flat surface
280
that are shaped to mate with the cavity
272
and flat surface
274
of the base
270
when the plug
276
has been inverted and properly positioned over the base
270
. It will be appreciated that the base
270
and the plug
276
together function as a die for folding a blank into the shape of the blister-like compartment.
FIG. 24A
shows an elevation view of the blank
10
shown in
FIG. 1
resting on the flat surface
274
of the base
270
, with the front panel
12
of the blank
10
positioned over the cavity
272
in the base
270
.
FIG. 24B
shows a cross section of the blank
10
and base
270
through the plane
24
B—
24
B. In the present embodiment of the invention, the blank
10
is removed from the hopper
256
by a pivoting arm (not shown) having a suction head for gripping the blank. The arm pivots to precisely position the blank
10
on top of the base
270
before releasing the suction.
FIG. 25A
shows an elevation view of the blank
10
that has been pressed into cavity
272
by the plug
276
illustrated in
FIGS. 23A and 23B
.
FIG. 25B
shows a cross section of the pressed blank
10
and base
270
through the plane
25
B—
25
B. The scoring of the blank
10
allows the blank
10
to hold its folded configuration within the cavity
272
. Also, as shown in
FIG. 25A
, after the pressing operation, the flange sections
16
, which have been pressed between flat surfaces
274
and
280
, now abut each other to form a substantially continuous flange.
After the operations illustrated in
FIGS. 24A-B
and
25
A-B have been performed at Station A, the base
270
holding the folded blank
10
is then rotated by the turntable
252
to Station B for loading.
FIG. 26A
shows an elevation view of the folded blank
10
seated in cavity
272
that has been loaded with an item
282
to be packaged.
FIG. 26B
shows a cross section of the base
270
, blank
10
, and item
282
through the plane
26
B—
26
B. As mentioned above, the loading of the folded blank
10
can be accomplished either by machine or by a worker. After the folded blank
10
has been loaded, the base
270
is rotated by the turntable
252
to Station C for placement of a card or other suitable backing.
FIG. 27A
shows an elevation view of the card
230
shown in
FIG. 2
that has been removed from the card hopper
260
and positioned on top of the folded blank
10
.
FIG. 27B
shows a cross section of the base
270
, blank
10
, item
282
, and card
30
. In the present embodiment of the invention, the card
30
is positioned onto the folded blank
10
using an arm (not shown) similar to the arm used to position the blank
10
on the base
270
over the cavity
272
. The turntable machine
250
may be adjusted to precisely place the card
30
in any number of desired positions. After the card
30
has been positioned, the base
270
is rotated by the turntable
252
to Station D for sealing.
FIG. 28
shows a cross section of a press
284
that is used to apply heat and pressure to the card
30
such that it forms an adhesive bond with the flange
16
of the folded blank
10
. As illustrated in
FIG. 28
, the flange
16
is pressed against the upper surface
274
of the base
270
. After the sealing operation is completed, the base
270
is rotated by the turntable back to Station A.
FIG. 12
shows a cross section of a vacuum gripping head
286
that is used to lift the finished package
288
out of the cavity
272
and to transport the finished package
288
to the holding bin
262
. The cavity
272
is now free to receive a fresh blank to be made into another package.
It should be noted that it is possible to adapt the Koch turntable machine
250
to process multiple blanks at each base
270
, instead of just one, by providing a plurality of suitably positioned cavities
272
at each base
270
. Suitable modifications must be made to other components of the machine
250
to accommodate the plurality of cavities. In one embodiment of a multiple blank machine, the blank hopper
256
is configured to hold separate, side-by-side stacks of blanks
10
. The top blank in each of the stacks is picked up simultaneously by a suction head having a suitable number of properly positioned suction elements. At Station A, the plug
276
includes a plurality of protruding elements
278
corresponding to the plurality of cavities
272
on the base
270
, so that all of the blanks
10
on the base
270
may be folded simultaneously. Similar modifications are made to the other components of the turntable machine
250
, as needed, to allow each of the plurality of blanks
10
on each base
270
to be processed simultaneously at each station.
The present invention may be used in package designs featuring alternative ways of affixing the blister-like compartment to a card. For example, one common type of blister package includes a frame that is fits closely around the base of the blister, with the flange of the blister being sandwiched between the frame and a card. Such a package design may be selected where, for example, it is desired to conceal the flange or where extra security is required.
FIG. 30A
is an elevation view of a frame
290
that can be used in conjunction with the blank
10
and card
30
illustrated in
FIGS. 1 and 2
, discussed above, to create a framed package.
As shown in
FIG. 30A
, the frame
290
has the same overall shape and size as the card
30
, but further includes an square opening
292
that is shaped to receive the base of the blister-like compartment. Of course, the frame
290
does not have to have the same overall shape and size as the card
30
. Also, the frame
290
and card
30
can be fabricated as a single piece that is folded around the blister-like compartment.
FIG. 30B
shows a plan view of a framed package
294
fabricated from the frame
290
shown in
FIG. 30A
, the blank
10
shown in
FIG. 1
, and the card
30
shown in FIG.
2
.
FIG. 30C
shows a cross section of the framed package
294
through the plane
30
C—
30
C. As shown in
FIGS. 30B and 30B
, the frame
290
fits closely around the base of the blister-like compartment, with the flange
16
sandwiched between the frame
290
and the card
30
. For purposes of illustration, in
FIG. 30C
, the frame
290
and the card
30
are illustrated with a small gap between them. However, because of the thinness of the material used to fabricate the blank
10
, and the pliability of the material used to fabricate the frame
290
and the card
30
, the frame
290
and the card
30
may be readily deformed towards each other to close the gap and to be adhered to each other. The adhesion may be accomplished by coating the card
30
and/or the frame
290
with a heat-sealing material.
The turntable process described above can be readily modified to manufacture a framed package. The frame is laid down first on the base
270
such that the opening of the frame is aligned over the cavity
272
. The blank
10
is then laid down on top of the frame with its front panel
12
aligned over the cavity
272
. Thus, when the plug
276
presses the blank
10
, the central and side panels
12
and
14
of the blank
10
are urged through the opening
292
of the frame
290
, while the flange sections
16
of the blank
10
remain on top of the frame
290
. The remaining manufacturing steps are identical to those described above.
FIG. 31
shows a flowchart of a method
300
according to a further aspect of the invention for fabricating a package having a blister-like compartment for holding an item. The various steps of the method
300
, and techniques for performing the steps of the method
300
have been described in detail above. In step
302
, a sheet or roll of plastic material out of which the blister-like compartment is to be fabricated is printed on, coated, and/or decorated. As described above, any techniques used to print on, coat, and/or decorate a sheet or roll of plastic material may be used, as desired. In step
304
, a blank is cut out of the plastic material. The blank is shaped such that it can be folded into a blister-like compartment with a flange at its base. As described above, if the blister-like compartment is to have cutout sections or perforations, these cutout sections or perforations may be made using a die cutting technique during the process of cutting the blank out of the plastic material. Also, as described above, score lines may be created at this time as well, using a microperforation technique, soft creasing, or other suitable scoring technique. In step
306
, the blank is folded into a blister-like compartment. This may be accomplished by pressing the blank into a suitably shaped cavity, as described above. As further described above, where a framed package is being fabricated, the blank is pressed through the frame into the cavity with the flange remaining on the other side of the frame. In step
308
, the folded blank is loaded with the item to be packaged. As described above, this may be performed either automatically or by a worker. In step
310
, the package is sealed by adhering a card to the flange. This can be accomplished by creating an adhesive bond between the front surface of the card and the flange or, in the case of a framed package, can be accomplished by adhering the flange between the front surface of the card and the rear surface of the frame.
One benefit of the present invention is that it allows matter that is normally printed onto the card
30
to be printed instead onto the blank
10
. This could include, for example, a company's logo, the name of the product, as well as the contents of the package, instructions, warnings, bar codes, etc. This in turn would allow a manufacturer to decrease the size of the card
30
, resulting in a savings in material costs, as well as the amount of space required to store and display the packaged item.
It will be appreciated that the present invention has many applications, some of which have been alluded to above. First, the invention can be used to decorate the blister-like compartment itself, thereby eliminating the need for labels or inserts and their associate inventory and application costs. Second, because the blister-like compartment readily lends itself to die cutting of any of its panels and flange sections, a blister-like compartment can be designed having a portion of the packaged product, such as a brush handle, extend out of the package, allowing the customer to handle part of the product. This type of packaging could be used, for example, to house portions of a product that are either subject to damage, such as bristles on a paintbrush, or that are potentially injurious, such as a razor blade. Such a package could be designed to be significantly smaller than traditional packages, resulting in a cost savings through the use of less packaging material.
While the foregoing description includes details which will enable those skilled in the art to practice the invention, it should be recognized that the description is illustrative in nature and that many modifications and variations thereof will be apparent to those skilled in the art having the benefit of these teachings. It is accordingly intended that the invention herein be defined solely by the claims appended hereto and that the claims be interpreted as broadly as permitted by the prior art.
Claims
- 1. A package, comprising:a backing; and a blister-like compartment including a plurality of panels defining an enclosure with a mouth at its base, the panels having lateral edges that are shaped to abut each other, the panels including lateral flaps at the lateral edges, the lateral flaps being foldable along the lateral edges to abut inner surfaces of the panels such that any openings between adjacent panels are concealed, thereby creating a visual impression that there is no break between adjacent panels; the blister-like compartment further including at its base at the mouth's perimeter a plurality of flange sections that are affixed to the backing to enclose an item into the blister-like compartment, the flange sections having lateral edges that are shaped to abut each other, such that in the blister-like compartment the flange sections together form a substantially continuous flange around the mouth of the blister-like compartment, the panels, flange sections, and backing forming a tamper-evident enclosure, the blister-like compartment being formed, without thermoforming, from a blank that has been cut from a sheet of see-through plastic material.
- 2. The package of claim 1, wherein the blank from which the blister-like compartment is formed has been printed upon such that printing appears on one or more panels of the blister-like compartment.
- 3. The package of claim 2, wherein the printing includes a design.
- 4. The package of claim 2, wherein the printing includes text.
- 5. The package of claim 2, wherein a portion of the panels of the blister-like compartment does not have printing thereon.
- 6. The package of claim 1, wherein the backing is a card.
- 7. The package of claim 6, wherein the card is coated with a heat-sealing material that is used to affix the flange to the card.
- 8. The package of claim 6, wherein the flange is coated with a heat-sealing material that is used to affix the flange to the card.
- 9. The package of claim 6, wherein the card and the flange are coated with a heat-sealing material that is used to affix the flange to the card.
- 10. The package of claim 1, wherein the blister-like compartment comprises a front panel having defined edges and a plurality of secondary panels, each secondary panel, in the blank from which the blister-like compartment is formed, extending in an outward direction from a respective edge of the front panel and including an outer edge, the outer edges of the secondary panels defining the mouth of the blister-like compartment.
- 11. The package of claim 10, wherein the front panel edges are straight.
- 12. The package of claim 10, wherein at least one of the front panel edges is curved.
- 13. The package of claim 10, wherein the flange comprises a plurality of flange sections, each flange section, in the blank from which the blister-like compartment is formed, extending in an outward direction from the outer edges of the secondary panels.
- 14. The package of claim 10, wherein each secondary panel includes a pair of lateral edges, each lateral edge abutting a lateral edge of an adjacent secondary panel in the blister-like compartment.
- 15. The package of claim 14, wherein the blank includes a plurality of flaps each extending from a secondary panel, each flap being positioned such that when the blank is formed into a blister-like compartment, the flap is folded such that it abuts a secondary panel adjacent to the secondary panel from which the flap extends, thereby covering any opening between the lateral edges of the two secondary panels.
- 16. The package of claim 15, wherein each flap is folded such that it abuts an inner surface of the adjacent secondary panel.
- 17. The package of claim 16, wherein each flap is sealed to the inner surface of the adjacent secondary panel.
- 18. The package of claim 1, wherein the lateral edges of the flange sections are beveled at an angle such that the lateral edges of adjacent flange sections abut each other.
- 19. The package of claim 1, wherein the lateral flaps are sealed to the inner panel surfaces.
- 20. The package of claim 1, wherein the lateral flaps are unsealed.
US Referenced Citations (11)