Storage Cup For Use With Composite Container

Abstract

A package is defined to retain a first product and a separate ingredient. The package includes a hollow tubular body and first and second end closures sealed to the ends of the tube. A retainer cup is provided for storing the separate ingredient. The retainer cup includes a generally tubular cup wall, with an upper edge portion defining a support rim that surrounds a cup opening. One sidewall of the cup wall includes a plurality of concave curved groves forming a scalloped surface. The scalloped surface extends longitudinally along the cup wall and defines a scalloped edge profile for the support rim. A closure lid overlies the cup opening and closes the separate ingredient within the cup interior.

Claims

1. A package for retaining a first product and a separate ingredient, the package comprising: a tubular body for retaining a first product, the tubular body having a generally cylindrical sidewall, a hollow interior and first and second open ends; first and second end closures closing the first and second open ends, respectively, of the tubular body; a retainer cup for storing a separate ingredient, the retainer cup having a generally tubular cup wall, the cup wall having an upper edge portion defining a support rim, the support rim surrounding a cup opening, the cup opening providing access to a cup interior and a separate ingredient, and a bottom wall closing a bottom end of the cup wall; one sidewall of the cup wall having a plurality of concave curved groves forming a scalloped surface, scalloped surface longitudinally extending along the cup wall from the bottom wall to the upper edge; and a closure lid configured to engage the support rim on the retainer cup, and to overlie the cup opening, for closing the separate ingredient within the cup interior, whereby the closure disk is coaxially positioned with the retainer cup within the tubular body, wherein the retainer cup is retained within the tubular body adjacent the first closure secured and wherein the closure disk in positioned in contact with the support rim of the retainer cup.

2. The package of claim 1 wherein the cup wall further comprises a plurality of longitudinally extending ribs, with one rib from the plurality positioned between adjacent concave grooves.

3. The package of claim 1 wherein the scalloped surface of the cup wall further defines a scalloped edge profile on the support rim.

4. The package of claim 1 wherein the closure lid further comprises a generally planar center portion and a rounded outer periphery.

5. The package of claim 1 wherein the closure lid snap-fits onto the support rim of the cup.

6. The package of claim 1 wherein a first portion of the cup wall has a first outside diameter and an upper portion of the cup wall flares outwardly from the first outside diameter, wherein an outside surface of the support rim is positioned radially outward of the outside surface of the first portion.

7. The package of claim 1 wherein the scalloped surface is formed on an outside surface of the cup wall, including the upper edge portion.

8. A package for retaining an expandable first product and a separate ingredient, the package comprising: a tubular body for retaining the first product in a first portion thereof, the tubular body having a generally cylindrical sidewall, a hollow interior and first and second open ends; first and second end closures sealingly closing the first and second open ends, respectively, of the tubular body; a retainer cup for storing a separate ingredient in a second portion of the tubular body adjacent to the first product, the first and second portions of the tubular body being axially arranged within the hollow interior, the retainer cup having a generally tubular cup wall, the cup wall having an upper edge defining a support rim, the support rim surrounding a cup opening, the cup opening providing access to a cup interior and a ingredient retained therein, and a bottom wall closing a bottom end of the cup wall, the retainer cup retained within the tubular body adjacent the first closure secured to the first end of the tubular body; and one sidewall of the cup wall having a plurality of longitudinal concave curved groves forming a scalloped surface, the scalloped surface of the cup wall further defining a scalloped edge profile for the support rim; and a closure lid configured to engage the support rim on the retainer cup and to overlie the cup opening, closing the separate ingredient within the cup interior; whereby the retainer cup and closure lid are adapted to be stacked within the tubular body, with the closure lid separating the first product from separate ingredient within the cup interior, with the bottom wall contacting the first end closure and the cup wall extending axially within the tubular body, and whereby pressure from expandable first product is exerted on the closure lid and is transmitted through engagement of the support rim to the cup wall and in turn to the first end closure, and wherein the cup wall is not substantially deformed and the closure lid is retained on the support rim within the package.

9. The package of claim 8 wherein the cup wall further comprises a plurality of longitudinally extending ribs, with at least one rib positioned between adjacent concave grooves.

10. The package of claim 8, wherein the closure lid further comprises a generally planar center portion and a rounded outer periphery.

11. The package of claim 8 wherein a first portion of the cup wall comprises a first outside diameter and the upper portion of the cup wall flares outwardly from the first outside diameter, wherein an outside surface of the support rim is positioned radially outward of the outside surface of the first portion.

12. The package of claim 8 wherein the scalloped surface is formed on an outside surface of the cup wall, including the upper edge portion.

13. The package of claim 8 wherein the closure lid snap-fits onto the support rim of the cup.

14. A package for retaining an expandable first product and a separate ingredient, the package comprising: a tubular body for retaining the first product in a first portion thereof, the tubular body having a generally cylindrical sidewall, a hollow interior and first and second open ends; first and second end closures sealingly closing the first and second open ends, respectively, of the tubular body; a retainer cup for storing a separate ingredient in a second portion of the tubular body adjacent to the first product, the first and second portions of the tubular body being axially arranged within the hollow interior, the retainer cup having a generally tubular cup wall, the cup wall having an upper edge defining a support rim, the support rim surrounding a cup opening, the cup opening providing access to a cup interior, the separate ingredient retained within the cup interior, and a bottom wall closing a bottom end of the cup wall, the retainer cup retained within the tubular body adjacent the first closure secured to the first end of the tubular body, and a plurality of longitudinal concave curved groves forming a scalloped surface formed on the outer surface of the cup wall and further defining a scalloped profile for the support rim; whereby the retainer cup is stacked within the tubular body, with the cup rim contacting the first end closure, the first end closure closing the cup opening and the cup wall extending axially within the tubular body, the retainer cup separating the first product from the separate ingredient within the cup interior, and whereby pressure from expandable first product is exerted on the bottom wall and is transmitted through the cup wall to the support rim and the first end closure, such that cup wall and support rim are not substantially deformed within the package.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] For the purpose of illustrating the invention, the drawings show one or more forms that are presently preferred. It should be understood that the disclosure and claimed invention is not limited to the precise arrangements and instrumentalities shown in the drawings.

[0011] FIG. 1 shows an isometric side view of a package according to the present disclosure, with a portion of the sidewall removed to view elements retained within the package.

[0012] FIG. 2 shows a side elevation of the package, with a portion of the sidewall removed.

[0013] FIG. 3 shows an exploded side elevation of a separator cup and cup lid combination for use with the package shown in FIGS. 1 and 2.

[0014] FIG. 4 shows an isometric top view of the separator cup portion of FIG. 3.

[0015] FIG. 5 shows an isometric bottom view of the separator cup of FIG. 3.

[0016] FIG. 6 shows a top plan view of the separator cup of FIG. 3.

[0017] FIG. 6A is a cross section view of the sidewall of the separator cup as taken along line 6A-6A in FIG. 6.

[0018] FIG. 7 shows an enlarged portion of the rim of the separator cup, with the portion designated in FIG. 6.

[0019] FIG. 8 shows an enlarged portion of one end of the package, with the sidewall and end cap shown in cross section and the separator cup positioned within the package.

[0020] FIG. 9 shows an enlargement of a portion of the package, as designated in FIG. 8.

[0021] FIG. 9A shows an enlargement of a portion of the package designated in FIG. 8.

[0022] FIG. 10 shows an enlarged portion of one end of a package with the sidewall and end cap shown in cross section and the separator cup shown in an alternate position.

[0023] FIG. 11 shows an enlargement of a designated portion of package embodiment shown in FIG. 10.

DETAILED DESCRIPTION

[0024] In the figures, where like numerals identify like elements, there is shown an embodiment of a package or container identified by the numeral 10. As shown in FIG. 1, the package 10 includes a tubular sidewall 12 and two end caps 14 and 16. A portion of the sidewall 12 is removed for illustration purposes, exposing a plurality of product pieces 18 and a separator cup 20. A cup lid or closure disk 22 is provided on the cup 20 and separates the cup interior from the product pieces 18. As also illustrated in FIG. 2, the end cap 14 is attached to one end of the tubular sidewall 12 by a double seaming method. Other forms of package ends and attachment methods are also possible. The second end cap 16 is contemplated to be similarly attached to the opposite end of the tubular sidewall.

[0025] As illustrated, the sidewall has a cylindrical form. Cross sections other than circular are also possible. The package shown is contemplated to be opened by separation of the composite material forming the sidewalls along a spiral seem, as in known in the art. Other opening methods, such as removal of one or both of the end caps, may also be utilized.

[0026] FIG. 3 shows an exploded side view of the separator cup 20 and cup lid 22. The lid 22 is normally placed on the top or support rim 24 of the open end of the cup 20. As more particularly shown in FIGS. 4 and 5, the cup 20 is formed by a generally cylindrical cup wall 26 and a round bottom wall 28. The cup 20 defines an interior volume and an open top end. The interior of the cup 20 is defined to retain a separate ingredient, such as a topping (not shown). The cup wall 26 includes a scalloped outer surface 30. As is more particularly shown in FIGS. 6, 6A and 7, the outer surface 30 of the cup wall 26 also includes a plurality of ribs 32 connected by a concave wall portions 34. The inside surface 36 of the cup wall 26 is shown as smooth, with the scallops formed on the outer surface 30.

[0027] In FIG. 6A, a cross section is taken through the cup wall 26 at the position of a rib 32. The cup wall 26 is integrally formed with the bottom wall 28. The rib portion 32 of the outside surface 30 of the cup wall 26 is shown as having a substantially uniform dimension from the intersection with the bottom wall 28 to a position adjacent the top rim 24. The upper end 38 of the cup wall 26 flairs radially outward at the top edge of the cup 20. As shown in FIGS. 3-5, the ribs 32 are relatively broader (in a circumferential direction) around the body portion of the cup wall 26 and taper to a point on the upper end 38 adjacent the top rim 24. In FIG. 7, the profile of the top rim 24 of the cup 20 is shown. The concave portions 34 of the scalloped outside surface 30 connect the spaced rib portions 32. The rim 24 of the cup wall 26 creates a support surface for the cup lid 22.

[0028] FIGS. 8 and 9 show the separator cup 20 positioned within the hollow interior of the tubular sidewall 12. The outside surface of the bottom wall 28 of the cup 20 is placed in contact with an inside surface of the end cap 14. The cup lid 22 is positioned on the top rim 24 of the cup 20, closing the interior volume and the separate ingredient (not shown). The product pieces 18 (see FIG. 1) are positioned within the tubular sidewall 12. The second end cap 16 (FIG. 1) is positioned on the second end of the sidewall 12 to close and seal the first product pieces 18 and the separator cup 20 within the package 10.

[0029] With reference to FIG. 9, the outer edge 40 of the lid 22 has a dimension less than the inside diameter of the hollow tube of sidewall 12. This dimensional relationship permits the cup lid (and cup) to be positioned within the hollow of the tube. The outward flare of the upper end 38 of the cup wall 26 is also normally spaced from the sidewall 12. The remaining portions of the cup wall 26 are positioned further inwardly from the inside surface of the tube sidewall 12.

[0030] The relationship between the cup lid 22 and the top rim 24 of the cup wall 26 is shown in close-up in FIG. 9A. The cup lid 22 is shown as including a rolled outer edge 40, a support area 42 radially inward of the outer edge 40, a central landing area 44 and a step or shoulder 46 between the landing 44 and the support area 42. The contours of the cup lid may be formed to loosely fit over the top rim 24 of the cup 20, with the shoulder 46 positioned adjacent the inside surface 36 of the cup wall 26 and the outer edge 40 of the lid 22 positioned outside of the cup rim 24. Alternatively, a snap-fit relationship may be created to resiliently fix the cup lid to the top rim of the cup wall. An additional bead or lip structure may be provided on the outside or inside surface of the top rim of the cup wall and a corresponding engagement surface may be provided on the cup lid. A shown, the rolled outer edge 40 or the step surface 46 may provide the necessary interference with the rim of the cup. The cup lid may be molded or otherwise formed with the interfering surface(s). It is contemplated that the force required to secure the lid to the cup and, in turn, to remove the lid will be relative low.

[0031] In FIGS. 11-12, the separator cup 20 is shown within the hollow of the sidewall 12 without a cup lid. The top rim 24 of the cup 20 is positioned in contact with the inside surface of the end cap 14. The end cap 14 closes the interior volume of the cup 20, while the bottom wall 28 of the cup 20 separates the stored ingredient (not shown) from the product (see FIG. 1) also stored within the tube 12.

[0032] The separator cup as shown and described is contemplated to be made of plastic and preferably formed by an injection molding process. The tubular sidewall 12 of the package 10 is preferably formed by a paper composite of the type know in the art and is sealed at either end by metal end caps 14, 16. The disc shaped cup lid 22 is preferably formed of metal with a coating thereon to prevent or diminish the likelihood of the product and/or separate ingredient sticking thereto. The product is preferably refrigerated dough with the separate ingredient being a frosting or other topping. The dough is placed in the container with the cup. The end caps are sealed to the ends of the tubular sidewall. Over time, the dough puffs or expands and pressure is built up inside the package. The pressure created by the dough exerts a force on the composite wall of the package, the end caps, and the separator cup.

[0033] The separator cup must be strong enough to withstand the pressure of the dough to survive until the consumer opens the package. Compared to a cylindrical cup wall, the present structure is contemplated to provide sufficient rigidity, while also reducing the overall amount of material used to create the separator cup. The scalloped surface effectively removes material as compared to a similarly dimensioned smooth surface. An additional consideration in formation of the cup is contact between the support area of the top rim. Sufficient contact area is necessary to prevent or deter bending or collapse of the cup wall and the top lid under the pressure of the expanding dough.

[0034] The flared end of the cup wall assists in deflecting the compressive forces being applied along the wall of the cup. The flaring further serves to increase the rim surface area for contact with the underside of the cup lid (or the end cap). As shown in the cross section of FIG. 6A, preferably, the inside wall maintains the same inside diameter, while the outside wall flairs outwardly. This flaring increased the wall thickness at the top end of the cup wall and the support surface of the top rim. The ribs 32 adjacent the top portion 38 of the cup wall 20 appear to narrow and become thinner. This surface configuration, however, is created by the increase in thickness of the scalloped area between the spaced ribs in the flared region.

[0035] The scalloped design around the cylinder of the cup may be created on either the inside or outside surface of the cup wall. The concave curve of the scalloped surface results in a material savings, while providing additional strength to withstand the pressure created by the dough (or the like). For example, the scallop design may result in about a 20% reduction in the overall material weight of the cup. However, a relatively large surface area is provided on the top rim of the cup. As a comparison, if the cylindrical wall thickness of the cup were to be reduced, the effective thickness of the rim would also be reduced and the overall strength of the cup would be diminished.

[0036] The present invention has been described and illustrated with respect to one or more exemplary embodiments. It should be understood by those skilled in the art from the foregoing that various other changes, omissions and additions may be made therein, without departing from the spirit and scope of the present invention, with the scope of the invention being described by the foregoing claims.