The present invention relates to support sheets such as separator sheets for multi-unit beverage packages such as cases of beer, soft drinks and the like, and related beverage packages containing same.
Various support sheets, separator or divider sheets, or tier sheets are known in the art. These sheets are used to facilitate assembly of a plurality of containers into an array, to support and/or divide arrays of articles, canned food or beverage containers. Many are disclosed as being printed, or as having tabs, aprons, or folded portions. See e.g. U.S. Pat. No. 2,928,200, (Shiels); U.S. Pat. No. 5,826,783 (Stout): and U.S. Pat. No. 7,089,871 (Smith, Jr.). These support sheets may be made of various materials including paperboard or plastic. See e.g. U.S. Pat. No. 3,522,890 (Birchall): U.S. Pat. No. 5,692,361 (Ziegler et al.); and U.S. Pat. No. 5,401,563 (Kurata et al.).
Also known are plastic, heat shrinkable, or foamed overwraps for packaging a plurality of articles, some of which may include separator sheets or trays. See e.g.: U.S. Pat. No. 4,333,570 (Heider); and U.S. Pat. No. 6,105,776 (Meilhon).
It is also known to protect contents of the package, especially glass bottles, by providing insulating plastic foam sheets to separate adjacent containers from one another using paper/plastic foam laminates as labels which may also be used for insulating or protecting, such disparate items as ice cream, a box of taco shells, or a “styrofoam” cup, see U.S. Pat. No. 4,273,816 (Tollette).
In another art, there are numerous inventions related to insulating beverage holders or “cozies”. These holders or cozies are designed to both insulate a person's hand from cold or hot temperatures and to help maintain the coldness or hotness of the beverage. Many insulating materials and designs are known. See e.g. U.S. Pat. No. 4,583,577 (Canfield); U.S. Pat. No. 4,648,525 (Henderson); U.S. Pat. No. 5,147,067 (Effertz); U.S. Pat. No. 6,620,281 (Sommers); and US Patent Publication Nos. 2002/0179617 (Barthlow is to) and 2002/0066739 (Howell et al).
U.S. Pat. No. 7,815,047 (Trimarco) discloses and attempts to provide a plurality of insulated paperboard beverage jackets which can be secured to a carton or formed as a portion thereof. The disclosed paperboard jackets are susceptible to failure from splitting apart upon insertion of the container into a jacket.
The art continues to lack an economical insulating holder for beverage cans or bottles which may be produced on high-speed equipment, and at low cost, and be effectively used, and preferably reused, without falling apart from stresses imparted by container insertion and both radial and lateral stresses placed upon the jacket during use.
It would be advantageous to provide a holder suitable for use with containers of varying diameter to accommodate products economically.
A novel flexible beverage support sheet having an insulating, flexible, polymeric sheet adapted for supporting beverage containers is described with the sheet having a perimeter edge and lines of weakness defining a plurality of insulating beverage holder blanks each of which is configurable about a so circumference of an individual beverage container and a beverage package containing the same.
In all embodiments of the invention it is necessary that the support sheet both define a plurality of insulating beverage holder blanks and be adapted to function as a support for a plurality of containers. Thus a multi-unit beverage case utilizes one of its supporting structures as a medium from which beverage holders may be easily formed for immediate use with the contents of the package. In this manner a dual use is provided with added value at little or no added cost. By using a flexible foamed multilayer polyolefin structure it may even be possible to reduce both cost and weight while providing added too functionality.
The blank and holder of the present invention may be made of any suitable polymeric material including monolayer or multilayer polymeric materials including e.g. cellulosic, rubber or thermoplastic material or combinations thereof. Specific material examples include non woven cellulosic, nonwoven plastic, nonwoven sheet, paperboard, polyolefin films or sheets etc. and may be embossed, textured, metallized, colored, dyed, printed or a combination thereof. The material may be in sheet, film, or tubular formats that are seamless or seamed.
The polymeric support sheet may also be water impermeable, water resistant or water proof to maintain integrity when in contact with water e.g. from outside environmental sources or from condensation especially when in use as a beverage holder wrapped around a cold beverage can.
The polymeric material may contain recycled polymer, scrim, fibers, inorganic filler, pigment, dye, colorants, scents, or other additives or agents to enhance or add functionality or improve sheet properties or processability.
Referring to the drawings, in general, layer thicknesses in the figures presented herein are not to scale, but are dimensioned for ease of illustration.
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The intermediate separator support sheet 15 is adapted to separate the first tier 12 from the second tier 13, and it is also adapted to provide stabilizing support for maintaining the positional relationship between the first tier and second tier containers 11 in cooperation with the overwrap 18. Without use of a suitable separator sheet individual cans or containers in the upper tier 13 may easily become displaced and fall under force of gravity and or other forces e.g. especially during handling and transport when additional jarring and/or handling forces may be encountered. Such displacement may cause the package to deform from its intended compact regularly dimensioned hexahedron shape to an irregular, noncompact and/or shifting configuration which may be a hard to stack, hard to handle shape thereby causing such undesirable effects as reduction of space utilization for stacking packages, loss of integrity of the package and its contents, breakage of the package causing spilling of its contents and disunity of the package from containing its pre-determined number of containers, denting and damage to individual containers, abnormal pressure on individual containers causing rupture and/or iso denting and the like. The separator sheet must thus have sufficient internal strength and integrity to hold together to resist such movement aided by the weight of adjacent containers which act to “pin” adjacent areas of the sheet 15 to the area whereupon rests an individual container bottom much like a blanket held around its perimeter by many hands may support thereon a person. In addition, the overwrap itself constrains the plurality of containers (hereinafter, by way of example only, referred to as “cans”), to remain in contact with one another and thereby circumscribing movement to any side being thereby bounded by either other cans or the overwrap itself against dislocating movement. Thus, any individual can will on its top or bottom have contact with a separator sheet, from 2-4 cans, and possibly the overwrap itself or a top or bottom base sheet so that movement is arrested in all directions. Preferably, the shape of the package complete with contents will generally form a hexahedron, but many shapes are contemplated including prismatic shapes such as cubes, cuboids, rectangular prisms, as well as cylinders and the like.
The beverage package 10, by way of example is depicted with a 3×4 can configuration for each tier thereby providing a package of 24 containers arranged in two twelve container tiers and having a rectangular circumference and approximate hexagonal shape. It will be appreciated that other arrangements may be easily constructed for example, of one or three tiers, or of 4×6, 3×5 or 4×4, etc., arrangements of cans, or using other style beverage containers of half height, thinner, thicker, taller, shorter, or varying container shapes to be e.g. more bottle-like with curved bodies, narrow necks, etc., or combinations of the foregoing construction elements.
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Top support sheet 14 is adapted for functioning not only for supporting beverage containers as a base sheet, but also comprises an insulating, flexible polymeric material and has a line of weakness depicted by perforations 33 by which the top sheet 14 may be manually separated into two separate insulating beverage holder blanks 34, 35 having respective adhesive fastener strips 36, 37.
Opposite top panel 20 is a bottom panel 38 of similar dimension to the top panel 20 and top sheet 14 with bottom panel 38 having a front perimeter edge 39 extending from corner 404 to opposite corner 41 and at right angles thereto, and side perimeter edge 42 extending from front corner 41 to opposing rear corner 43. Rectangular front panel 21 is defined by front edge 26 which extends from corner 31 to corner 32 and opposing front edge 39. These two parallel opposing front edges 26 and 39 are connected at right angles by parallel opposing edges 44, 45. Edge 44 extends from corner 31 to corner 40. Edge 45 extends from corner 32 to corner 41. Side panel 22 shares a top side edge 28 with top panel 20 and shares an opposing parallel bottom edge 42 with bottom panel 38. These two edges are connected by front edge 45 and rear edge 46, the rear edge 46 extends from corner 30 to corner 43 and runs parallel to the front edge 45. Parallel to the plane of side panel 22 is an opposing side panel (not shown) of similar dimensions to panel 22 and having its front edge coextensive with front edge 44 and its top side edge coextensive with edge 27. In this manner a box shaped rectangular prism beverage package is formed having six sides comprising three sets two opposing parallel rectangular surfaces i.e., (i) top and bottom panels, (ii) front and rear panels, and (iii) a pair of side panels. To construct the package, plastic overwrap 18 (typically a seamless tube, but may optionally be seamed to form a tube) is positioned so that two tiers of a plurality of containers and the support sheets are placed within the overwrap tube and heat applied to the front and rear ends of the tubes and along the tube body. The application of heat causes the plastic tube to contract about its contents and also causes both ends to severely contact thereby holding the contents together in close contact with one another. The front and rear ends of the plastic overwrap also shrink and melt to form compact hand grip areas. A front hand grip area 47 and its perimeter 48 is depicted and a similarly dimensioned rear panel (not shown) in a parallel plane to the front panel 21 is located at the rear of the package having coextensive top rear and side edges 25, 46 with a corresponding rear hand grip.
It will be appreciated that top support sheet 14 and/or overwrap 18 may be imprinted with indicia 49 e.g. symbols, words, logos, designs and the like to communicate information or provide a pleasing appearance or for other functional or ornamental reasons. In the embodiment depicted in
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In use an individual holder 134 may be separated manually by pulling apart the flexible film portions on either side of a line of weakness defined here by the perforation lines 133a and 133b. This produces access to the contents of the package e.g. a can of beverage and also yields an individual beverage container holder which may then be wrapped around a beverage container 111. In this alternative embodiment, the holder may be held in place by an adhesive tape strip (not depicted). A plurality of such adhesive strips may be provided as fastening means to attach a first end 50 of a detached rectangular holder 134 to a portion of a second opposing end 51 with a third end 52 aligning with an upper can portion and an opposing fourth end 53 aligning with a bottom can portion. In this embodiment indicia 149 is printed as part of the overwrap and multiple holders may be provided around the package 110. In addition, a separator or divider sheet 115 may be provided as described above in
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Examples of preferred polymers for use in flexible plastic film or sheet structures include ethylene homopolymers or copolymers such as low density polyethylene (LDPE), high density polyethylene (HDPE), very low density polyethylene (VLDPE), ultra low density polyethylene (ULDPE), linear low density polyethylene (LLDPE), ethylene alpha-olefin copolymers (EAO), propylene ethylene copolymers, polyesters, ethylene vinyl acetate copolymers, polyester terephthalate, and the like. Beneficially, the top layer 75 is formed of a material having good processiblity, good machinability, abrasion resistance, and/or good printability or combinations thereof. Beneficially, the bottom layer 77 may likewise have similar properties to those described for the top layer. The bottom layer should also preferably have a surface suitable for gripping a container surface to prevent unwanted sliding of the can, although the surface may be selected to provide reusability of a holder for subsequent cans e.g. by slidably removing the can from the tubular holder and slipping the holder over another can. It may also be beneficial for one or more of the surface or core layers to have good resistance to inadvertent puncture or tearing, and optionally, e.g. where the above described multilayer film is used as an overwrap, good shrink properties which allow for contraction upon application of heat to form a smooth tight appearance and provide package contents restraint from movement and displacement.
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The box blank 234 has a bottom section 238 with parallel opposing longitudinal fold scores 239, 240 and parallel opposing transverse fold scores 241, 242 which four fold scores define a rectangular shaped bottom 238. Depending from bottom front transverse fold score 241 is a front lower end tab 243. Depending from bottom rear transverse fold score 242 is a rear lower end tab 244.
Adjacent to the bottom section 238 with shared longitudinal fold score 239 is left side section 245 having a left side longitudinal fold score 246 which is parallel to fold score 239 and connected thereto by parallel opposing left side front and rear transverse fold scores 247, 248. Depending from left side transverse fold score 247 is a left front side end tab 249. Depending from left side rear transverse fold score 248 is a left rear side end tab 250.
Adjacent to the bottom section 238 with shared longitudinal fold score 240 is right side section 251 having a longitudinal fold score 252 which is parallel to fold score 240 and connected thereto by parallel opposing front and rear transverse fold scores 253, 254. Depending from right side transverse fold score 253 is a right front side end tab 255. Depending from right side rear transverse fold score 254 is a right rear side end tab 256.
Adjacent to the left side section 245 with shared longitudinal fold score 246 is left top section 257 having a left top longitudinal end 258 connected to fold score 246 by parallel opposing front and rear transverse fold scores 259. 260. Depending from transverse fold score 259 is a left front top end tab 261. Depending from rear transverse fold score 260 is a left rear top end tab 262.
Adjacent to the right side section 251 with shared longitudinal fold score 252 is right top section 263 having a longitudinal end 264 connected to fold score 252 by parallel opposing front and rear transverse top fold scores 265, 266. Depending from right top transverse fold score 265 is a right front top end tab 267. Depending from rear transverse fold score 266 is a right rear top end tab 268.
According to the invention, defined within the perimeter 235 of box blank 234 is a plurality of flexible beverage holder blanks. Bottom section 238 is divided by a line of perforations 269 into two paperboard hook and slot type beverage holder blanks 270, 271, each of which has an arrow shaped “hook” 272 formed by perforations extending from transverse fold score 241 into the front lower end tab 243. At opposing ends of holder blanks 270, 271 proximate the transverse fold score 242 and extending therefrom inward on the holder blanks 270, 271 are perforated curved slots 273. The flexible paperboard holder blanks 270, 271 may be separated from the box blank by tearing or cutting along scores 239, 242, 240, and 241 taking care to separate “hooks” 272 from the from lower end tab 243 along the hook perforations while only severing that portion of score 241 that will permit the hooks to remain integral with the holder blank while separating them from the end tabs. The pair of holder blanks 270, 271 thus removed from the box blank 234 may be separate from each other along perforated line 269 to form individual beverage holders, each of which may be wrapped around a container body such as a can with insertion of the arrow shaped hook into that holder's slot to snugly fit together and form a tubular holder. Left and right side sections 245, 251 contain longitudinal lines of perforations 274 which extend respectively from score 248 to score 247 and from score 254 to score 253. Six beverage holders may be separated from these left and right side sections 245, 251 by: (i) removing the end tabs 249, 250 (for the left section) and 255, 256 for the right section; (ii) removing the left and right top sections along scores 246, 252; (iii) removing the bottom section 238 along scores 239, 240; and (iv) separating six individual holders 275 from each other by severing along perforation lines 274. Each of these beverage holders is depicted with a release liner cover pressure sensitive adhesive strip 276. An individual beverage holder 275 may be wrapped around the tubular side wall of a can and connected to itself by removal of the release liner to expose the adhesive which permits the holder to be pressed against itself to form a snug tubular holder which insulates a drinker's hand from the temperature of the beverage, and insulates the beverage from the temperature of the hand, e.g. see
Flexible beverage container support sheets may have any suitable thickness that achieves the aims of the invention to provide a support sheet in combination with a beverage holder blank that is flexible enough to conform its shape around the body of a beverage container by which it may be held insulating the person's hand from the coldness of the can. In preferred embodiments of the invention the support may have a thickness between 1 mil (0.254 millimeters) and inch (63.5 millimeters). Especially preferred embodiments may advantageously have a thickness between 5-15 man (1.27-3.81 mm).
Paperboard embodiments are contemplated and e.g. 35 mil kraft paper may be used as well as the previously described plastic and multilayer especially foamed polymer embodiments.
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1. A flexible beverage support sheet has an insulating, flexible, polymeric sheet adapted for supporting beverage containers, the sheet having a perimeter edge and lines of weakness defining a plurality of insulating beverage holder blanks each of which is configurable about a circumference of an individual beverage container.
2. A flexible beverage support sheet, as described in embodiment 1, where the support sheet is a base sheet adapted to support at least one tier of a plurality of beverage containers.
3. A flexible beverage support sheet, as described in embodiment for 2, where the support sheet is a carton blank adapted for encasing at least one tier of beverage containers: the carton blank perimeter circumscribing therein the plurality of beverage holder blanks.
4. A flexible beverage support sheet, as described in embodiment 1, 2 or 3, where the support sheet is integral with or fixed to at least one surface of an overwrap encasing a plurality of beverage containers.
5. A flexible beverage support sheet, as described in embodiments 1-4, where the support sheet is a separator sheet adapted for separating a first tier of a first plurality of beverage containers from a second tier of a second plurality of beverage containers and providing stabilizing support for maintaining positional relationship between the first and second tier containers in cooperation with an overwrap.
6. A flexible beverage container support sheet, as described in embodiments 1-5, where the lines of weakness comprise slits, score lines, perforations or a combination thereof.
7. A flexible beverage container support sheet, as described in embodiments 1-6, further comprising fastening means for forming a beverage container holder by connecting an edge portion of an insulating holder blank to an opposing edge portion of the holder blank.
8. A flexible beverage container support sheet, as described in embodiments 1-7, further comprising an adhesive tape, an adhesive pattern applied to an edge portion of the holder blanks, or hook and loop fasteners or a combination thereof.
9. A flexible beverage container support sheet, as described in embodiment 1-8, where the lines of weakness further define a hook portion and a slot portion whereby a holder blank separated from the sheet is adapted for connection to itself by insertion of the hook portion into the slot portion to form a cylindrical insulating beverage container holder.
10. A flexible beverage container support sheet, as described in embodiments 1-9, wherein each of the plurality of holder blanks is manually removable from the sheet along the lines of weakness.
11. A flexible beverage container support sheet, as described in embodiments 1-10, wherein each of the holder blanks has opposing edge portions and at least one of the edge portions has a pressure sensitive adhesive applied thereto by which the holder blank is connectable to itself by overlaying the opposing edge portions in adhesive contact thereby connecting them together to form a cylindrical insulating beverage container holder.
12. A flexible beverage container support sheet, as described in embodiments 1-11, where the lines of weakness further define an integral coaster portion for insulating a container bottom surface.
13. A flexible beverage container support sheet, as described in embodiments 1-12, 22, or 23 where the polymeric sheet comprises a cellulosic, rubber, thermoplastic material, nonwoven cellulosic, nonwoven plastic, foamed synthetic polymer, polyolefin, polyethylene or polypropylene polymer, foamed polyethylene, or combinations thereof.
14. A flexible beverage container support sheet, as described in embodiments 1-13, where the polymeric material comprises a monolayer or multilayer structure having 1 or 2 or more layers and optionally at least 3, 4, 5, 6, 7, 8, 9, 10 or more layers including optionally a first surface polymeric layer, a second surface polymeric layer, and an intermediate, preferably foamed, core polymeric layer between the first and second surface layers and optionally a pressure sensitive adhesive layer, a release liner, an abrasion resistant layer, a layer to increase or decrease one or more of the following attributes: rigidity, tensile strength, printability, coefficient of friction, slip properties, temperature insulating properties, moisture resistance, water permeability, flex-crack resistance, shrinkability, crock resistance, uv resistance heat sealability, compostability, peelability delamination resistance, oxygen permeability, or machinability or combinations thereof.
15. A flexible beverage container support sheet, as described in embodiments 1-14, where the sheet is embossed, textured, metallized, or printed.
16. A flexible beverage container support sheet, as described in embodiments 1-15, where the sheet is coated or treated with inks, dyes, pigments, surface property modifying agents coefficient of friction modifying agents, agents to improve at least one of abrasion resistance, colorfastness, temperature insulating or moisture resistant properties, corona or plasma treatment, irradiation, uv resistance holographic printing, or combinations thereof.
17. A flexible beverage container support sheet, as described in embodiments 1-16, where the polymeric material is a multilayer structure of at least two layers where the lines of weakness, including optionally die cutting, extend through at least a first layer and the first layer is adapted for peelable separation from at least one other layer.
18. A flexible beverage container support sheet as described in embodiments 1-17, where the polymeric material includes a pressure sensitive adhesive layer which has preferential substantivity to a peelably removable holder blank.
19. A flexible beverage container support sheet comprising: an insulating, flexible, polymeric, multilayer, polyolefin foamed sheet of at least three layers including a first surface polymeric layer, a second surface polymeric layer and an intermediate foamed core polymeric layer between the first and second surface layers; and where the sheet is adapted for supporting beverage containers, the sheet having a perimeter edge and lines of weakness which defining a plurality of insulating beverage holder blanks each of which is configurable about a circumference of an individual beverage container and wherein each of the plurality of holder blanks is manually removable from the sheet along the lines of weakness which comprise slits, score lines, perforations or a combination thereof; the holder blank further comprising fastening means for forming a beverage container holder by connecting an edge portion of an insulating holder blank to an opposing edge portion of the holder blank and where the fastener means comprise an adhesive, hook and loop fasters, or a mechanical fastener where the lines of weakness further define a hook portion and a slot portion whereby a holder blank separated from the sheet is adapted for connection to itself by insertion of the hook portion into the slot portion to form a cylindrical insulating beverage container holder.
20. A beverage package comprising:
(a) a plurality of beverage containers; and
(b) an overwrap encasing the beverage containers;
wherein the package comprises at least one flexible stabilizing support sheet (which is optionally removable) comprising an insulating, flexible, polymeric sheet having a perimeter edge and lines of weakness defining a plurality of insulating beverage holder blanks which are removable and formable into a plurality of individual insulating beverage container holders and where the support sheet is at least one of a base sheet, a separator sheet, an overwrap, a panel fixed to the overwrap, or a combination thereof; and optionally further comprising an adhesive tape, an adhesive applied to an edge portion of the holder blanks, hook and loop fasteners, or a mechanical or chemical fastener or combinations thereof.
21. A beverage package, as described in embodiment 20, where the plurality of beverage containers is arranged in at least two tiers and the support sheet is a separator sheet separating the tiers; and whereby the overwrap, separator sheet, and containers cooperate to provide an integrally stable package which resists shifting of individual containers during handling and transport of the package and the separator sheet assists in providing stabilizing support for maintaining positional relationship between the first and second tier containers in cooperation with the overwrap.
22. A flexible beverage container support sheet or beverage package as described in embodiment 1, 2, 3, 4, 5, 6, 20, 21 wherein the polymeric support sheet comprises at least two superimposed polymeric sheets having at least one longitudinal seal, at least one longitudinal line of weakness, at least three transverse seals, at least one transverse line of weakness, wherein the at least two sheets each comprises a first polymeric layer, a second polymeric layer, and a third intermediate polymeric foamed layer therebetween.
23. A flexible beverage container support sheet or beverage package, as described in embodiment 22, wherein each insulating beverage container has at least two parallel seals connected by a transverse seal, the seals attaching the two polymeric sheets together thereby forming the container having an open end and three side seals.
The above example and embodiments illustrate the invention and its advantages and should not be interpreted as limiting since further modifications will be apparent to those skilled in the art. All such modifications are deemed to be within the scope of the invention as defined by the following claims.
Filing Document | Filing Date | Country | Kind |
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PCT/US13/46689 | 6/20/2013 | WO | 00 |