US20050167430A1 - Double rib overcap for a container with a removable membrane - Google Patents

Double rib overcap for a container with a removable membrane Download PDF

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Publication number
US20050167430A1
US20050167430A1 US10/771,220 US77122004A US2005167430A1 US 20050167430 A1 US20050167430 A1 US 20050167430A1 US 77122004 A US77122004 A US 77122004A US 2005167430 A1 US2005167430 A1 US 2005167430A1
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US
United States
Prior art keywords
overcap
rib
container
membrane
inside surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/771,220
Inventor
Krishnaraju Varadarajan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonoco Development Inc
Original Assignee
Sonoco Development Inc
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Filing date
Publication date
Application filed by Sonoco Development Inc filed Critical Sonoco Development Inc
Priority to US10/771,220 priority Critical patent/US20050167430A1/en
Assigned to SONOCO DEVELOPMENT, INC. reassignment SONOCO DEVELOPMENT, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VARADARAJAN, KRISHNARAJU
Publication of US20050167430A1 publication Critical patent/US20050167430A1/en
Application status is Abandoned legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00Closures not otherwise provided for
    • B65D51/18Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0204Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00Details relating to container closures
    • B65D2251/0003Two or more closures
    • B65D2251/0006Upper closure
    • B65D2251/0018Upper closure of the 43-type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00Details relating to container closures
    • B65D2251/0003Two or more closures
    • B65D2251/0068Lower closure
    • B65D2251/0093Membrane
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/0025Multi-position closures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00259Materials used
    • B65D2543/00296Plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342Central part of the lid
    • B65D2543/00398Reinforcing ribs in the central part of the closure
    • B65D2543/00416Reinforcing ribs in the central part of the closure circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00527NO contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00611Profiles
    • B65D2543/00638Rolled edge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00675Periphery concerned
    • B65D2543/00685Totality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00722Profiles
    • B65D2543/0074Massive bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00787Periphery concerned
    • B65D2543/00805Segments

Abstract

There is provided a double rib overcap for a container with a removable membrane. The skirt of the overcap includes a first inwardly projecting rib and a second inwardly projecting rib that are axially separated and includes inside surfaces of the skirt that are axially above each rib. The container has an opening that is encircled by a rim and the membrane covers the opening such that the membrane extends radially onto an outer surface of the rim. A first inside surface above the first rib of the overcap is dimensionally sized to create an interference-fit with the membrane and the rim when the overcap is connected to the container. Likewise, a second inside surface above the second rib of the overcap is dimensionally sized to create an interference-fit with the rim of the container when the overcap is connected to the container after the membrane has been removed.

Description

    FIELD OF THE INVENTION
  • The present invention relates generally to containers with overcaps. More particularly the invention relates to overcaps for containers with a removable membrane. The overcap has a skirt configured to engage a rim of the container with an interference-fit to seal the container.
  • BACKGROUND OF THE INVENTION
  • Containers that store perishable goods, such as food products, often include a sealed membrane to minimize the transfer of oxygen, moisture, or contaminants into the container. The membrane is removed by the customer when the container is first opened, and the membrane is discarded. An overcap is provided for re-closing the container after the initial opening. The overcap engages a rim (e.g., a rolled bead or a flange) on the top of the container in such a way that a snap-fit or interference-fit connection exists to retain the overcap in place on the container.
  • When the membrane is located directly below the overcap, both overcap and membrane provide a sealing barrier over the opening prior to the first opening of the container. Once the membrane has been removed, the overcap provides the only barrier for the remaining product during subsequent storage. Therefore, the overcap should securely connect to the container to reseal the stored product.
  • While a membrane is attached to a container, it often extends outwardly to the surface of the container to which the overcap attaches. In such a situation, the overcap is dimensioned to create a tight fit with the container surface and the membrane. However, once the membrane has been removed and the overcap replaced, the overcap may not create a tight fit with only the container surface because of the missing membrane. An insufficient fit may allow oxygen, moisture, or contaminants to enter the container or may cause the overcap to come off unintentionally.
  • Therefore, a need exists for an overcap for containers with membranes that provides an interference-fit when the membrane is attached and when the membrane is removed.
  • BRIEF SUMMARY OF THE INVENTION
  • The invention addresses the above needs and achieves other advantages by providing an interference-fit or snap-fit overcap for engaging a radially outwardly protruding rim of a container that includes a removably attached membrane. The overcap includes a top panel with a periphery and a skirt that extends from the periphery of the top panel to a distal end. The skirt defines a first inside surface that is axially spaced from the top panel and is proximate the distal end of the skirt. The skirt also defines a second inside surface axially positioned between the first inside surface and the top panel. The first inside surface is diametrically dimensioned to produce an interference-fit with the membrane and rim when the overcap is connected to the container with the attached membrane. The second inside surface is diametrically dimensioned to produce an interference-fit with the rim alone when the overcap is connected to the container without the membrane.
  • The skirt of the overcap includes a first rib projecting inwardly from the skirt and axially located between the first inside surface of the skirt and the distal end of the skirt. The skirt also includes a second rib projecting inwardly from the skirt and axially located between the second inside surface and the first inside surface. When the overcap is connected to the container with the attached membrane such that the membrane and rim create an interference-fit with the first inside surface, the first rib engages beneath the rim of the container to resist detachment of the overcap. When the overcap is connected to the container without the attached membrane such that second inside surface creates an interference-fit with the rim and the second rib engages beneath the rim of the container to resist detachment of the overcap.
  • The present invention also provides a container with a membrane and an overcap. The container includes a container body formed by a wall, where the wall defines an opening encircled by a radially outwardly protruding rim. The membrane is removably attached to the container to substantially cover the opening while the membrane is attached. The overcap includes a skirt with two inside surfaces and two ribs, as described above. One embodiment of the invention includes a membrane that extends radially outward onto the outer surface of the rim, and another embodiment includes a membrane that covers the container opening without extending radially outward onto the outer surface of the rim.
  • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
  • Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
  • FIG. 1 is a perspective view of an overcap, partially in section, in accordance with an embodiment of the present invention;
  • FIG. 2 is a schematic, cross-sectional view of the overcap of FIG. 1 showing the first inside surface of the overcap engaging the membrane and the rim of the container to create an interference-fit; and
  • FIG. 3 is a schematic, cross-sectional view of the overcap of FIG. 1 showing the second inside surface of the overcap engaging the rim of the container to create an interference-fit.
  • DETAILED DESCRIPTION OF THE INVENTION
  • The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout.
  • With reference to FIGS. 1-3, a sealable storage device in accordance with one embodiment of the invention is illustrated. The storage device 10 includes an overcap 12, a container 14, and a membrane 16. The container 14 is structured to store products within the container and to provide access to the stored products through an opening 18. A variety of products can be stored in the storage device 10; however, the storage device is preferably used to store perishable products because the membrane 16 provides a barrier to seal the container 14.
  • The membrane 16 is removably attached to the container 14 during the packaging of the stored product, subsequent to the placement of the product within the container. The membrane 16 substantially covers the entire opening 18 of the container 14 and minimizes or prevents the passage of oxygen, moisture, and/or other contaminants into the container. The membrane 16 must be removed, either completely or partially, to provide access to the product, during normal use of the storage device 10. After the membrane 16 has been removed, it generally cannot be reattached to seal the container 14, and is usually discarded.
  • The container 14 as illustrated in FIG. 1 is a cylindrical tube. Further embodiments of the invention may include containers, and corresponding overcaps 12, that are of any geometric shape. Thus, although terms such as diameter, circumferential, radial, and the like, are used herein, they are not intended to limit the invention to any particular configuration, but are merely used as descriptive terms. The container 14 of FIG. 1 includes the opening 18, which is encircled by a radially outwardly protruding rim 20. The rim 20 of the illustrated container 14 is an outwardly rolled bead. Other containers 14 of the present invention may include a rim 20 of any configuration. The rim 20 includes a top surface 22, an outer surface 24, and a bottom surface 26. The rim 20 of FIG. 1 has a generally consistent cross-section throughout the entire circumference of the container; however, other containers 14 of the present invention may include a rim that includes one or more features of varying cross-section. Such features may be included to facilitate removal of the overcap 12 or membrane 16.
  • The membrane 16 of FIGS. 1-3 is attached to both the top surface 22 and the outer surface 24 of the rim 20. Other embodiments of the storage device 10 may include a membrane 16 that is attached only to the top surface 22 or that is attached to the top surface, the outer surface 24, and the bottom surface 26. The overcaps 12 of such embodiments are structured and arrange to accommodate the membrane 16 attached to the various surfaces to improve the fit between the overcap and the membrane and rim 20.
  • The overcap 12 of FIG. 1 includes a top panel 30 and a skirt 32. The top panel 30 is generally disk-shaped and may include additional features on the top surface and the bottom surface of the top panel. The top panel 30 also defines a periphery 34 proximate the outer circumference of the top panel. The skirt 32 extends downward from the periphery 34 of the top panel 30. The overcap 12 of further embodiments of the storage device 10 may include features that are at a radial distance beyond the periphery 34 or above the top panel 30. Such features may include surfaces to facilitate the disconnecting or connecting of the overcap 12 and container 14. The skirt 32 of illustrated overcap 12 extends generally perpendicular from the top panel 30 to a distal end 36. Other embodiments of the overcap 12 may include a skirt 32 that extends from the top panel 30 at a non-perpendicular angle.
  • The skirt 32 of FIG. 2 and FIG. 3 has an outside surface 40 and an inside surface facing the interior of the overcap. The inside surface of the skirt 32 includes a first inside surface 42 and a second inside surface 44. The first inside surface 42 is axially spaced apart from the top panel 30 and is proximate the distal end 36 of the skirt 32. The second inside surface 44 is axially positioned between the first inside surface 42 and the top panel 30. Furthermore, the skirt 32 includes a first rib 52 that projects inwardly from the inside surface of the skirt and is axially located between the first inside surface 42 and the distal end 36. The skirt 32 also includes a second rib 54 that projects inwardly from the inside surface of the skirt and is axially located between the second inside surface 44 and the first inside surface 42.
  • FIG. 2 illustrates the overcap 12 connected to the container 14, when the membrane 16 is attached to the container, and FIG. 3 illustrates the overcap connected to the container when the membrane has been removed. As shown in FIG. 2, the first inside surface 42 is diametrically dimensioned to produce an interference-fit with the membrane 16 and the rim 20. The inside diameter of the first inside surface 42 of the undeformed overcap 12 is generally less than the diameter of the outer surface 24 of the rim 20 added to twice the thickness of the membrane. This difference in diameter creates an interference-fit when the overcap 12 is pushed onto the top of the container. A slight growth in diameter of the overcap 12 and/or a slight reduction in diameter of the rim 20 and membrane 16 occurs through material deformation. Since the materials have resilience, they exert a restoring force, which tends to keep the overcap 12 attached. Other embodiments of the interference-fit overcap 12 may create the interference-fit by having a friction-fit or an interference-fit between the membrane 16 and/or a surface of the rim 20 and the first inside surface 42 of the skirt 32, between the membrane and/or a surface of the rim and the first rib 52, between the membrane and/or a surface of the rim and the second rib 54, or between any combination of the rim features and the skirt features.
  • As shown in FIG. 3, the second inside surface 44 is diametrically dimensioned to produce an interference-fit with the rim 20 alone. The inside diameter of the second inside surface 44 of the interference-fit overcap 12 is generally less than the diameter of the outer surface 24 of the rim 20. This difference in diameter creates the interference-fit. Other embodiments of the interference-fit overcap 12 may create the interference-fit by having a friction-fit or an interference-fit between a surface of the rim 20 and the second inside surface 44 of the skirt 32, between a surface of the rim and the second rib 54, between a surface of the rim and the top panel 30, or between any combination of the rim features and the skirt features.
  • The first inside surface 42 of the skirt 32 defines an inside diameter that is approximately equivalent to a combined distance of the inside diameter of the second inside surface 44 and twice the thickness of the membrane 16, as illustrated in FIGS. 2 and 3. Further embodiments of the overcap 12 may include a first inside surface 42 and second inside surface 44 that have various relative inside diameters.
  • The ribs 52 and 54 of the overcap engage the rim 20 of the container 14 to resist detachment of the overcap from the container when the rim of the container is located axially above the respective rib. When the membrane 16 is attached and the membrane and rim 20 engage the first inside surface 42, the first rib 52 may contact the rim on the bottom surface 26, the outer surface 24, or some combination of both surfaces to resist detachment of the overcap 12 from the container 14. Likewise, when the membrane 16 is removed and the rim 20 engages the second inside surface 44, the second rib 54 may contact the rim on the bottom surface 26, the outer surface 24, or some combination of both surfaces to resist detachment of the overcap 12 from the container 14.
  • The overcap 12 of FIGS. 2 and 3 has a first rib 52 and a second rib 54 that each define a rounded portion 56 at the innermost surface of the rib. The rounded portion 56 of the rib 52 and of the rib 54 is the surface of the respective rib opposite the outside surface 40 of the skirt 32. The rounded portion 56 of each rib facilitates the connecting and disconnecting of the overcap 12, while minimizing or preventing damage to the membrane 16 or the rim 20. The rounded portion 56 of the first rib 52 defines a diametrical distance relatively smaller than the inside diameter of the first inside surface 42. Therefore, when the overcap 12 is connected to the container 14, the skirt 32 of the overcap must flex outward and/or the rim 20 flex inward to allow passage of the membrane 16 and the rim past the first rib 52 and into the first inside surface, as shown in FIG. 2. Likewise, the rounded portion 56 of the second rib 54 has an inside diameter smaller than the inside diameter of the second inside surface 44. Therefore, when the overcap 12 is connected to the container 14, the skirt 32 of the overcap must flex outward and/or the rim 20 flex inward to allow passage of the rim past the first rib 52 and second rib 54 and into the first inside surface, as shown in FIG. 3.
  • The overcap 12 of FIG. 1 can be made of various materials that have sufficient flexibility and resilience to allow the necessary deformation of the overcap as it is pushed onto the container rim. Suitable materials include but are not limited to polyester, polyolefins (including homopolymers, co-polymers, etc.) such as polyethylene or polypropylene, polystyrene, elastomers (including thermoplastic rubber, thermoplastic elastomer, etc.), and mixtures or combinations thereof. The overcap 12 of the illustrated embodiment is made of a material that is sufficiently flexible and resilient to allow passage of the rim 20 of the container 14 through the first rib 52 and the second rib 54 of the overcap. An overcap 12 of a more rigid material may include a thin-wall portion in the top panel 30 or skirt 32 such that the rigid material is allowed to flex enough to allow passage of the rim 20 of the container 14 through the first rib 52 and the second rib 54 of the overcap.
  • Each of the ribs 52 and 54 of the overcap 12 of FIGS. 1-3 defines an uninterrupted circumferential rib to provide uniform retention of the overcap when the overcap is attached or connected to the container 14. Other embodiments of the overcap 12 may include a first rib 52 and/or a second rib 54 that defines a plurality of circumferentially spaced portions. These spaced portions may be of equal circumferential width and spacing or may be of random width and spacing. Each of the portions of the plurality of circumferentially spaced portions defining a single rib are all located at an equivalent axial distance from the top panel 30, so that when the overcap 12 is attached to the container, the top panel is generally parallel to the opening 18.
  • The membrane 16 can be manufactured from any suitable material or combinations or two or more different materials, and can be removably attached by any suitable adhesive or process. The membrane 16 of the illustrated storage device 10 is a metal foil that is joined with adhesive to a container 14 that is a paperboard tube. Where moisture and/or gas barrier performance is required of the membrane, the membrane can comprise various barrier materials, including but not limited to metal foil, polyethylene terephthalate, metallized polyethylene terephthalate, polyethylene naphthalate, metallized polypropylene, metal oxide and silicate coated polyester, metal oxide and silicate coated polypropylene, ethylene vinyl alcohol copolymer, and mixtures thereof. Instead of or in addition to a barrier layer of such materials, the membrane can include one or more layers of other materials such as polyester, polyolefin, and others. The membrane 16 can be adhered to the container by various materials, including but not limited to glues or adhesives such as hot melt glues, ethylene vinyl acetate, ethyl methyl acrylate, metallocenes, and the like, heat seal materials such as ionomers (e.g., SURLYN®, TRANCEND®, or the like), polypropylene (with or without mineral filler), high-density polyethylene, low-density polyethylene, and others. The container itself can be formed of various materials and by various processes including but not limited to spiral winding of composite materials, convolute winding of composite materials, injection molding, blow molding, or thermoforming a suitable polymer material, and others.
  • Many modifications and other embodiments of the invention set forth herein will come to mind to one skilled in the art to which the invention pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the invention is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (22)

1. An interference-fit overcap, for engaging a radially outwardly protruding rim encircling a container opening having a removably attached membrane, comprising:
a top panel having a periphery;
a skirt extending from the periphery of the top panel to a distal end such that the skirt defines a first inside surface axially spaced from the top panel proximate the distal end of the skirt and defines a second inside surface axially positioned between the first inside surface and the top panel, wherein the first inside surface is diametrically dimensioned to produce an interference-fit with the membrane and rim and the second inside surface is diametrically dimensioned to produce an interference-fit with the rim alone;
a first rib projecting inwardly from the skirt and axially located between the first inside surface of the skirt and the distal end of the skirt; and
a second rib projecting inwardly from the skirt and axially located between the second inside surface and the first inside surface;
wherein the first rib engages beneath the rim of the container to resist detachment of the overcap when the membrane is attached and the second rib engages beneath the rim of the container to resist detachment of the overcap when the membrane is not attached.
2. An interference-fit overcap according to claim 1, wherein the radially outwardly protruding rim encircling the container defines an outer surface and the membrane extends radially outward onto the outer surface of the rim.
3. An interference-fit overcap according to claim 1, wherein the radially outwardly protruding rim encircling the container defines an outer surface and the membrane covers the container opening without extending radially outward onto the outer surface of the rim.
4. An interference-fit overcap according to claim 1, wherein the first rib and the second rib each defines an uninterrupted circumferential rib.
5. An interference-fit overcap according to claim 1, wherein the first rib and the second rib each defines a plurality of circumferentially spaced portions.
6. An interference-fit overcap according to claim 1, wherein the skirt extends substantially perpendicular to the top panel of the overcap.
7. An interference-fit overcap according to claim 1, wherein the first rib and the second rib of the overcap each define a rounded edge portion at a radially inward surface opposite the first inside surface and the second inside surface of the skirt.
8. An interference-fit overcap according to claim 7, wherein the rounded edge portion of the first rib defines an inside diameter relatively larger than an inside diameter of the rounded edge portion of the second rib.
9. An interference-fit overcap according to claim 1, wherein the overcap is a thermoplastic material.
10. A container, comprising:
a container body formed by a wall, wherein the wall defines an opening encircled by a radially outwardly protruding rim;
a removably attached membrane substantially covering the opening while the membrane is attached; and
an interference-fit overcap, comprising:
a top panel having a periphery;
a skirt extending from the periphery of the top panel to a distal end such that the skirt defines a first inside surface axially spaced from the top panel proximate the distal end of the skirt and defines a second inside surface axially positioned between the first inside surface and the top panel, wherein the first inside surface is diametrically dimensioned to produce an interference-fit with the membrane and rim and the second inside surface is diametrically dimensioned to produce an interference-fit with the rim alone;
a first rib projecting inwardly from the skirt and axially located between the first inside surface of the skirt and the distal end of the skirt; and
a second rib projecting inwardly from the skirt and axially located between the second inside surface and the first inside surface;
wherein the first rib engages beneath the rim of the container to resist detachment of the overcap when the membrane is attached and the second rib engages beneath the rim of the container to resist detachment of the overcap when the membrane is not attached.
11. A container according to claim 10, wherein the radially outwardly protruding rim encircling the container defines an outer surface and the membrane extends radially outward onto the outer surface of the rim.
12. A container according to claim 10, wherein the radially outwardly protruding rim encircling the container defines an outer surface and the membrane covers the container opening without extending radially outward onto the outer surface of the rim.
13. A container according to claim 10, wherein the outwardly protruding rim is an outwardly rolled bead.
14. A container according to claim 10, wherein the first rib and the second rib each defines an uninterrupted circumferential rib.
15. A container according to claim 10, wherein the first rib and the second rib each defines a plurality of circumferentially spaced portions.
16. A container according to claim 10, wherein the skirt extends substantially perpendicular to the top panel of the overcap.
17. A container according to claim 10, wherein the first rib and the second rib of the overcap each define a rounded edge portion at a radially inward surface opposite the first inside surface and second inside surface of the skirt.
18. A container according to claim 17, wherein the rounded edge portion of the first rib defines an inside diameter relatively larger than an inside diameter of the rounded edge portion of the second rib.
19. A container according to claim 10, wherein the membrane defines a thickness and the inside diameter of the first inside surface is approximately equivalent to a combined distance of the inside diameter of the second inside surface and twice the thickness of the membrane.
20. A container according to claim 10, wherein the membrane is a metal foil.
21. A container according to claim 10, wherein the overcap is a thermoplastic material.
22. A sealable storage device, comprising:
a container, comprising:
a body formed by a wall,
an opening defined by the wall, and
an outwardly rolled bead encircling the opening of the container, wherein the bead protrudes generally outward from the wall and defines an outer surface;
a membrane removably attached to the bead such that the membrane substantially covers the opening and extends radially outward onto the outer surface of the bead while the membrane is attached; and
an interference-fit overcap, comprising:
a top panel having a periphery;
a skirt extending from the periphery of the top panel to a distal end such that the skirt defines a first inside surface axially spaced from the top panel proximate the distal end of the skirt and defines a second inside surface axially positioned between the first inside surface and the top panel, wherein the first inside surface is diametrically dimensioned to produce an interference-fit with the membrane and bead and the second inside surface is diametrically dimensioned to produce an interference-fit with the bead alone;
a first rib projecting inwardly from the skirt and axially located between the first inside surface of the skirt and the distal end of the skirt; and
a second rib projecting inwardly from the skirt and axially located between the second inside surface and the first inside surface;
wherein the first rib engages beneath the bead of the container to resist detachment of the overcap when the membrane is attached and the second rib engages beneath the bead of the container to resist detachment of the overcap when the membrane is not attached.
US10/771,220 2004-02-03 2004-02-03 Double rib overcap for a container with a removable membrane Abandoned US20050167430A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/771,220 US20050167430A1 (en) 2004-02-03 2004-02-03 Double rib overcap for a container with a removable membrane

Applications Claiming Priority (5)

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US10/771,220 US20050167430A1 (en) 2004-02-03 2004-02-03 Double rib overcap for a container with a removable membrane
CA 2495322 CA2495322A1 (en) 2004-02-03 2005-01-31 Double rib overcap for a container with a removable membrane
EP20050250526 EP1561696A1 (en) 2004-02-03 2005-02-01 Double rib overcap for a container with a removable membrane
MXPA05001345 MXPA05001345A (en) 2004-02-03 2005-02-02 Double rib overcap for a container with a removable membrane.
BR0500282-6A BRPI0500282A (en) 2004-02-03 2005-02-02 Double rib overcap for a container with a removable membrane

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US20050167430A1 true US20050167430A1 (en) 2005-08-04

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US (1) US20050167430A1 (en)
EP (1) EP1561696A1 (en)
BR (1) BRPI0500282A (en)
CA (1) CA2495322A1 (en)
MX (1) MXPA05001345A (en)

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US20070164095A1 (en) * 2006-01-13 2007-07-19 Sonoco Development, Inc. Composite containers and methods for sealing the same
US20070262077A1 (en) * 2006-05-11 2007-11-15 Sonoco Development, Inc. Dual function overcap for a container with a removable membrane
US20100059537A1 (en) * 2007-02-23 2010-03-11 Stevens James P Hinged overcap from a container
US20120080437A1 (en) * 2009-03-10 2012-04-05 Goetz Guenther Sealing means for sealing a volume of a medical treatment arrangement against another volume, as well a s an arrangement and a method
US8328036B2 (en) 2006-05-08 2012-12-11 Sonoco Development, Inc. Double rib overcap with plug for a container with a removable membrane
US20130015094A1 (en) * 2010-03-15 2013-01-17 Mars Incorporated Stackable can with lid
US20130047559A1 (en) * 2011-02-07 2013-02-28 Berry Plastics Corporation Package with lid sealing system
US8517212B2 (en) 2011-05-05 2013-08-27 Sonoco Development, Inc. Overcap for a container
US20140287107A1 (en) * 2011-11-02 2014-09-25 Crown Packaging Technology Inc. Process for filling a can
US20140326735A1 (en) * 2013-05-03 2014-11-06 Berry Plastics Corporation Container closure
US9023445B2 (en) 2011-10-14 2015-05-05 Kellogg North America Company Composite containers for storing perishable products
USD734980S1 (en) 2013-09-06 2015-07-28 Kraft Foods Group Brands Llc Lid for a container
US9617048B2 (en) 2011-12-02 2017-04-11 The Hillshire Brands Company Peelable and resealable packaging
US9630762B2 (en) 2014-01-22 2017-04-25 Berry Plastics Corporation Package with peelable closure
US9676504B2 (en) 2011-07-07 2017-06-13 Berry Plastics Corporation Lid sealing process
US9809360B2 (en) 2014-07-23 2017-11-07 Berry Plastics Corporation Package with peelable closure

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DE102006021079B4 (en) * 2006-03-21 2008-01-17 IMPRESS Metal Packaging S.A., Crosmières Container having a cap-combination
FR2969584B1 (en) * 2010-12-22 2014-04-04 C G L Pack Service Cover for tin can
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US20050139090A1 (en) * 2003-12-29 2005-06-30 Clougherty Kenan J. Pressure/moisture release cooking container
US7337916B2 (en) * 2003-12-29 2008-03-04 Sonoco Development, Inc. Pressure/moisture release cooking container
US20070164095A1 (en) * 2006-01-13 2007-07-19 Sonoco Development, Inc. Composite containers and methods for sealing the same
US7828197B2 (en) 2006-01-13 2010-11-09 Sonoco Development, Inc. Composite containers and methods for sealing the same
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US20070262077A1 (en) * 2006-05-11 2007-11-15 Sonoco Development, Inc. Dual function overcap for a container with a removable membrane
US8757429B2 (en) 2007-02-23 2014-06-24 Sonoco Development, Inc. Hinged overcap for a container
US20100059537A1 (en) * 2007-02-23 2010-03-11 Stevens James P Hinged overcap from a container
US20120080437A1 (en) * 2009-03-10 2012-04-05 Goetz Guenther Sealing means for sealing a volume of a medical treatment arrangement against another volume, as well a s an arrangement and a method
US9827358B2 (en) * 2009-03-10 2017-11-28 Fresenius Medical Care Deutschland Gmbh Sealing means for sealing a volume of a medical treatment arrangement against another volume, as well as an arrangement and a method
US20130015094A1 (en) * 2010-03-15 2013-01-17 Mars Incorporated Stackable can with lid
US9469445B2 (en) * 2011-02-07 2016-10-18 Berry Plastics Corporation Package with lid sealing system
US20130047559A1 (en) * 2011-02-07 2013-02-28 Berry Plastics Corporation Package with lid sealing system
US8517212B2 (en) 2011-05-05 2013-08-27 Sonoco Development, Inc. Overcap for a container
US9676504B2 (en) 2011-07-07 2017-06-13 Berry Plastics Corporation Lid sealing process
US9023445B2 (en) 2011-10-14 2015-05-05 Kellogg North America Company Composite containers for storing perishable products
US9139346B2 (en) * 2011-11-02 2015-09-22 Crown Packaging Technology, Inc. Process for filling a can
US20140287107A1 (en) * 2011-11-02 2014-09-25 Crown Packaging Technology Inc. Process for filling a can
US9617048B2 (en) 2011-12-02 2017-04-11 The Hillshire Brands Company Peelable and resealable packaging
US9474397B2 (en) * 2013-05-03 2016-10-25 Berry Plastics Corporation Container closure
US20140326735A1 (en) * 2013-05-03 2014-11-06 Berry Plastics Corporation Container closure
USD734980S1 (en) 2013-09-06 2015-07-28 Kraft Foods Group Brands Llc Lid for a container
US9630762B2 (en) 2014-01-22 2017-04-25 Berry Plastics Corporation Package with peelable closure
US9809360B2 (en) 2014-07-23 2017-11-07 Berry Plastics Corporation Package with peelable closure

Also Published As

Publication number Publication date
BRPI0500282A (en) 2005-09-27
EP1561696A1 (en) 2005-08-10
CA2495322A1 (en) 2005-08-03
MXPA05001345A (en) 2005-09-08

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