Product packaging having a non-thermoformed blister-like compartment and methods for making same

Information

  • Patent Grant
  • 6739453
  • Patent Number
    6,739,453
  • Date Filed
    Monday, September 25, 2000
    24 years ago
  • Date Issued
    Tuesday, May 25, 2004
    20 years ago
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)
Number Name Date Kind
1938490 Locke Feb 1933 A
3608705 Moshel Sep 1971 A
4858756 Herrin et al. Aug 1989 A
5069334 Herrin et al. Dec 1991 A
5117972 Herrin et al. Jun 1992 A
5154293 Gould Oct 1992 A
5429233 Juaristi Jul 1995 A
5485919 Samberg et al. Jan 1996 A
5564569 Kiefer Oct 1996 A
5819939 Boyer Oct 1998 A
6053321 Kayser Apr 2000 A