Patent Application
20100108677
The present disclosure relates generally to child resistant blister packaging for the packaging and dispensing of articles. More specifically, the present disclosure is directed to a package including a child resistant blister package housing with removable tab strips for encapsulating one or more blister packages and allowing controlled and child-resistant packaging and dispensing of articles.
It is known that blister packaging can be used to store and deliver a wide range of items. Among the many types of items that can be stored and delivered in blister packs are pharmaceutical products, such as tablets, pills, capsules, and other related items. Conventional blister packages include a blister tray that is typically a thermoformed plastic sheet with a plurality of blister cells or depressions formed therein. Typically, after items are placed in the cells, the items are retained and protected in the respective cells by securing a backing sheet to the blister tray. The backing sheet is often a thin layer of metal foil, plastic, paperboard, or other material secured to the back of the blister tray, thereby sealing the cells. In other types of blister packages, the contents are placed in substantially puncture-proof foil containers that can be covered with foil or paperboard backing.
In many blister packages, the foil backing is thin enough to be punctured mechanically, or ruptured by pressing the blister so that the encapsulated item penetrates the foil backing. If the backing sheet is made from, for example, paperboard, or similar material, then the backing often includes gates in the backing sheet that covers the openings of respective blister cells. In practice, each gate is deformed or manipulated so that it ruptures or partially separates from the surrounding paperboard to allow the item contained within the blister cell to be pushed out of the blister cell for use.
While the conventional blister packaging is viewed by many to be suitable for most applications, there are several design deficiencies. The conventional packages provide removal of the items from the blister cells, but offer little in the way of resisting child tampering. Child resistance is a feature that is desired, particularly for dose pharmaceutical packaging.
To address the desirability of child resistance, many blister packaging designs employ materials of increased rigidity, compared to conventional non-child-resistant packages. For example, in increased-rigidity packages, the backing sheet and/or the blister cells can be made thicker and/or more resistant to pressure. As such, a young child is unlikely to be able to generate the pressure required to force the package contents through the increased-strength materials. In addition to the benefits in terms of child-resistance, increased rigidity can provide additional protection for the enclosed materials, which may be, as is the case with pharmaceuticals, fragile and susceptible to breakage.
As required, detailed embodiments of the present disclosure are disclosed herein. It must be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various and alternative forms, and combinations thereof. As used herein, the word “exemplary” is used expansively to refer to embodiments that serve as an illustration, specimen, model or pattern. As used herein, the terms “foldable score line” and “severance line” refer to all manner of lines indicating optimal fold or cut locations, frangible or otherwise weakened lines, perforations, a line of perforations, a line of short slits, a line of half-cuts, a single half-cut, a cut line, scored lines, slits, any combination thereof, and the like.
The figures are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. In other instances, well-known components, systems, materials or methods have not been described in detail in order to avoid obscuring the present disclosure. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure.
It is contemplated that the present disclosure is not limited to the pharmaceutical and personal healthcare related articles referenced with the illustrated embodiment. Instead, embodiments of packaging made in accordance with the present disclosure can have application in packaging for any small, delicate, sensitive, or portable article. Furthermore, the packaging can be used for larger items as a method of decreasing the incidence of product theft. Examples of articles for which such packaging can be employed include all manner of consumable products such as candy, food, vitamins, tobacco, and the like; all manner of personal care products such as contact lens, birth control devices, smoking cessation patches, hearing aid batteries, and the like; as well as any item that can fit within a portable container.
Referring now to the drawings, wherein like elements are represented by like numerals, and wherein like articles and respective elements are, at times, represented by primed numerals,
The packaging blank 10 includes a face panel 14a and a back panel 14b. The face panel 14b and the back panel 14a are hingedly connected along a foldable score line 16. Although, in this exemplary embodiment, the panels 14a, 14b are illustrated as integrally formed as one piece, it should be understood that the respective panels 14a, 14b can be formed as two separate and distinct pieces.
The packaging blank 10 and the tab strip insert 12 can be constructed from any suitable substrate material. Suitable substrate materials include, but are not limited to, plastics, conventional paperboard, including solid bleached sulfate (SBS) paperboard of suitable weight, size and shape, and combinations thereof. Commercial examples of suitable substrate include EASY SEAL® and EASY SEAL PLUS® self-sealing boards, both of which are currently available from MeadWestvaco Corporation. Additionally, it is contemplated that embodiments of the present disclosure may be used in conjunction with NATRALOCK® packaging material. Additionally, a tear-resistant layer may or may not be adhered to the packaging blank 10 and/or the tab strip insert 12. Tear-resistant layers, if included, are often laminated to the blank before cutting. Even if no tear-resistant layers are included as part of the packaging blank 10 and/or the tab strip insert 12, the packaging blank and/or a package made from the packaging blank 10 and/or tab strip insert 12 may be augmented by tear resistant materials such as, but not limited to, tear resistant tapes, labels, glues, coating, combinations thereof, or the like. Furthermore, it is possible, and in fact contemplated, that an adhesive layer or material may be added to the packaging blank 10 and/or the tab strip insert 12 prior to assembling the packaging blank 10 and the tab strip insert 12 into a package, as will be explained below. The packaging blank 10 and/or the tab strip insert 12 may also be an unbleached board, depending on the desired appearance of the final package.
The face panel 14a can further include one or more blister apertures 18. The blister apertures 18 are shaped and dimensioned to receive the blisters 20 of a blister pack 22. As illustrated, one or more blisters 20 can contain a product 24, illustrated in
The back panel 14b includes one or more product access apertures 40. The product access apertures 40 are defined by severance lines 42. The severance lines 42 can be shaped and dimensioned to allow the packaged product to pass therethrough, after or during removal of the material defined by the severance lines 42, by interfacing with and/or receiving a tool or a force from the product itself in a method that will be described below with reference to
The tab strip insert 12 can include one or more tab strips 54. The tab strips 54 can be defined by severance lines 56, 58, and 60. As illustrated, the tab strips 54 can include various features. In
The grasping region 62 of a tab strip 54 can be shaped and dimensioned substantially similar to the tab strip access pads 30 of the face panel 14a, and the tab strip grasping pads 44 of the back panel 14b. When the tab strip insert 12 is assembled with the packaging blank 10, the grasping region 62 of the tab strips 54 can align with and cooperate with the tab strip access pads 30 of the face panel 14a, and the tab stress grasping pads 44 of the back panel 14b.
The tamper safety region 64 of a tab strip 54 is included to increase the tamper-resistance of the tab strips 54, as will be explained below with respect to
The product access prevention region 66 is designed to further impede unauthorized access to the product 24 in a blister pack 22. The product access region 66 aligns with and cooperates with the product access apertures 40 of the back panel 14b and the blisters 20. This function of the tab strips 54 is illustrated and described below with respect to
With additional reference now to
In practice, to access an item 24 from a package 70, a user bends the package 70 along one of the cut lines 26, 28. If the user is looking at the face panel 14a, then the package portion between the cut line 26, 28 and the edge of the package 70 is bent away from the user, as shown in
Once the perforations of the severance lines 32, 34, 46, and 48 are severed, the tab strip 54 can be pulled out of the package 70. The tab strip 54 may be pulled out of the package 70 by withdrawing laterally the tab strip 54 and sliding the tab strip 54 out from between the face panel 14a and back panel 14b, approximately through the area formed by removing the tab strip access panel 30.
After the tab strip 54 is removed, the product 24 is more easily removable by applying a force to the top of the blister 20 behind which the tab strip 54 has been removed. As a force is applied to the blister 20, the product 24 can be pushed through the backsheeting of the blister pack 22, and into the product access aperture 40, defined by a severance line 42. The applied force must be sufficient to sever the perforations of severance line 42, after which the product 24 can exit the package 70 through the product access aperture 40.
Turning now to
Referring now to
The packaging blank 10′ includes a face panel 14a′, and a back panel 14b′. The panels 14a′, 14b′ are hingedly connected along a foldable score line 16′. Although in this exemplary embodiment, the panels 14a′, 14b′ are illustrated as integrally formed as one piece, it should be understood that the respective panels 14a′, 14b′ can be formed as two separate and distinct pieces.
The face panel 14a′ can include one or more blister apertures 18′. The blister apertures 18′ can be shaped and dimensioned to receive the blisters 20 of a blister pack 22. As illustrated, one or more blisters 20 can contain a product 24, illustrated in
As illustrated in
The back panel 14b′ can include one or more product access apertures 40′. The product access apertures 40′ be shaped and dimensioned to allow the packaged product to pass therethrough. As explained above, the product access apertures 40′ can have the same shape and dimensions as the blister apertures 18′ of the face panel 14a′. The back panel 14b can further include one or more tab strip grasping pads 44′. The tab strip grasping pads 44′ can be defined by severance lines 80, 82, and 84. The tab strip grasping pads 44′ can align with and cooperate with the tab strip access pads 30′ of the face panel 14a′. It should be understood that the tab strip access pads 30′ and the tab strip grasping pads 44′ can have any desired shape and dimensions.
The tab strip insert 12′ can include one or more tab strips 54′. The tab strips 54′ can be defined by severance lines 86. As illustrated in
With additional reference now to
In practice, to access an item 54 from a package 70′, upward pressure, i.e., a pressure that pulls away from the face panel 14a′ and the back panel 14b′, is applied to a tab strip access pad 30′. When such a force is applied to the tab strip access pad 30′, the perforations of the severance lines 72, 74 and 76 are severed, thereby severing the tab strip access pad 30′ from the surrounding material of the face panel 14a′. Additionally, this force can sever the perforations of the severance line 86 of the tab strip insert 12′, and the severance lines 80, 82, and 84 of the back panel 14b′. After the perforations of severance lines 72, 74, 76, 86, 82, and 84 are severed, the tab strip 54′ can be pulled out of the package 70′, similar to the tab strip 54 of
It should be understood that while the product access apertures 40′ of
While only one blister pack 22 is illustrated in the figures, it should be understood that any number of blister packs 22 can be included in any of the illustrated embodiments. Furthermore, the blister apertures 18, 18′ need not have identical shape or dimensions. Similarly, product access apertures 40, 40′ of all embodiments can have an irregular shape to provide gates (not illustrated) and or can include additional layers of material to increase the amount of force required to gain access to the product 24 housed in a blister 20 of a blister pack 22. It should also be understood that the inclusion of an adhesive layer may be required for some or all of the described embodiments.
Additionally, while the illustrated embodiments have generally shown the face panels, back panels, and the tab strip inserts to be of substantially identical shape, dimensions, and/or material, it should be understood that the face panels and back panels of all embodiments made according to the present disclosure need not be symmetrical or substantially identical, and need not be made from material having substantially identical properties. Substantial variations in the shape and dimensions of, as well as the materials used to form the face panels, the back panels, and/or the tab strip inserts are possible and are, in fact, contemplated.
While the illustrated embodiments have included packaging blanks made from self-sealing material, it should be understood that glue or other fastening means can be used when assembling the packaging blanks 10, 10′ and tab strip inserts 12, 12′ into packages 70, 70′.
The law does not require and it is economically prohibitive to illustrate and teach every possible embodiment of the present claims. Hence, the above-described embodiments are merely exemplary illustrations of implementations set forth for a clear understanding of the principles of the disclosure. Variations, modifications, and combinations may be made to the above-described embodiments without departing from the scope of the claims. All such variations, modifications, and combinations are included herein by the scope of this disclosure and the following claims.
