EP3204307A1 - Couvercle à indicateur d'effraction et son procédé de fabrication - Google Patents

Couvercle à indicateur d'effraction et son procédé de fabrication

Info

Publication number
EP3204307A1
EP3204307A1 EP14903692.3A EP14903692A EP3204307A1 EP 3204307 A1 EP3204307 A1 EP 3204307A1 EP 14903692 A EP14903692 A EP 14903692A EP 3204307 A1 EP3204307 A1 EP 3204307A1
Authority
EP
European Patent Office
Prior art keywords
band portion
peripheral margin
cylindrical band
closure member
teeth
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.)
Granted
Application number
EP14903692.3A
Other languages
German (de)
English (en)
Other versions
EP3204307A4 (fr
EP3204307B1 (fr
Inventor
Stephen Hugh Witt
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.)
Stanpac Inc
Original Assignee
Stanpac Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stanpac Inc filed Critical Stanpac Inc
Publication of EP3204307A1 publication Critical patent/EP3204307A1/fr
Publication of EP3204307A4 publication Critical patent/EP3204307A4/fr
Application granted granted Critical
Publication of EP3204307B1 publication Critical patent/EP3204307B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0235—Removable lids or covers with integral tamper element
    • B65D43/0237—Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element
    • B65D43/0256—Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element only on the outside, or a part turned to the outside, of the mouth of the container
    • B65D43/0262—Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element only on the outside, or a part turned to the outside, of the mouth of the container leaving only an outside friction after removal of the tamper element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00231—Overall construction of the lid made of several pieces
    • B65D2543/0024—Overall construction of the lid made of several pieces two pieces, one forming at least the whole skirt, the other forming at least the whole upper part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00268—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00314—Combination, e.g. laminates, several different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact 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
    • B65D2543/00527—NO contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00611—Profiles
    • B65D2543/00638—Rolled edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00675—Periphery concerned
    • B65D2543/00685—Totality
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/00759—Flange or lip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00805—Segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824—Means for facilitating removing of the closure
    • B65D2543/00833—Integral tabs, tongues, handles or similar
    • B65D2543/00842—Integral tabs, tongues, handles or similar outside of the lid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
    • B65D85/78—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials for ice-cream

Definitions

  • the invention relates generally to lids for containers and particularly to tamper-resistant, tamper-evident lids for containers for products that present significant concerns for the consumer about unauthorized tampering with the product (e.g. food products and other consumables) .
  • 7,703,626 (to the present inventor Witt) describes the pre-assembly heating of the closure components with directed hot air to partially melt the thermoplastic surfaces and allow the parts to be immediately assembled sealingly, and describes a paperboard composite closure in which the plastic rim is of a two-piece snap-fit construction where the paperboard is compressed between first and second annular flanges of the two-piece plastic rim .
  • a lid that can be used to resist and make readily detectable tampering of the products at the point of sale.
  • Particular examples include dairy products, cosmetics, granular or powdered food products such as tubs for bread crumbs, hardware product tubs for screws, nuts and bolts, and so on.
  • a tarn per- resistant tamper- evident container closure is provided for ice cream, dairy and other food products that are commercially practical and provides the level of tamper evidence needed for food safety.
  • a tamper resistant push-on closure member for a container having an opening with a peripheral lip formation comprising : a top cylindrical band portion having an upper peripheral margin and a lower peripheral margin, the top cylindrical band portion having a plurality of continuous annular ridges extending inwardly along the circumference of its inner surface for contacting the side surface of the container; a bottom cylindrical band portion having an upper peripheral margin and a lower peripheral margin; the bottom cylindrical band portion being circumscribed by a rupturable line of weakness vertically below the lower peripheral margin of the top cylindrical portion; a plurality of rigid teeth extending from the lower peripheral margin of the bottom cylindrical band portion in an upward and inward direction for locking engagement against the lip of the container when the closure member is in place; and a top cover portion formed from generally flexible sheet material, peripherally sealed to an annular ledge on the upper peripheral margin of the top cylindrical band portion.
  • a closure member where the top of the plurality of rigid teeth are connected to the lower peripheral margin of the top cylindrical band portion by a plurality of projections for providing a visual tamper evident indication and for increasing the force of engagement of the plurality of teeth against the lip of the container.
  • a closure member having a plurality of tooth channels positioned between the lower peripheral margin of the top cylindrical band portion and the upper peripheral margin of the bottom cylindrical band portion for facilitating the flow of plastic resin during the production of the plurality of rigid teeth.
  • a closure member where the bottom of the plurality of teeth are connected to the lower peripheral margin of the bottom cylindrical band portion by a plurality of inner projections for increasing the rigidity of the plurality of teeth and for increasing the force of engagement of the plurality of teeth against the lip of the container.
  • a composite tamper resistant push-on closure member for a container having an opening with a peripheral outwardly extending lip formation
  • the closure comprising : a top cover; a cylindrical closure, the cylindrical closure comprising : a top cylindrical band portion having an upper peripheral margin extending from the top cover portion, and a lower peripheral margin; a bottom cylindrical band portion having an upper peripheral margin and a lower peripheral margin; a rupturable line of weakness between the lower peripheral margin of the top cylindrical band portion and the upper peripheral margin of the bottom cylindrical band portion; and a plurality of rigid teeth extending from the lower peripheral margin of the bottom cylindrical band portion in an upward and inward direction for locking engagement against the lip of the container when the closure member is in place; the top cylindrical band portion having an annular recess along the inner circumference of the upper peripheral margin for receiving and securing a peripheral margin of the top cover.
  • FIG. 1 is a plan view of the top of the example closure of FIG. 1;
  • FIG. 2 is a cross-sectional view of the example closure of FIG. 1, across line A-A of FIG. 1;
  • FIG. 3 is a cross-sectional portion view of the example closure of FIG. 1;
  • FIG. 4A is a perspective view of the example closure of FIG. 1 with a container
  • FIG. 4B is a perspective view of the example closure of FIG. 1 attached to a container;
  • FIG. 5 is a outer side view of the example closure of FIG. 1;
  • FIG. 6A is a cross-sectional view of the example closure of FIG. 1 with a container
  • FIG. 6B is a cross-sectional portion view of the example closure of FIG. 1 with a container
  • FIG. 7A is a cross-sectional view of the example closure of FIG. 1 attached to a container.
  • FIG. 7B is a cross-sectional portion view of the example closure of FIG. 1 attached to a container.
  • FIG. 1 shows an example closure 10 in accordance with the present disclosure.
  • the closure 10 is a snap-on closure such as a lid, and may be suitable for use to close an opening of a food container such as a plastic or paperboard container (e.g., an ice cream container).
  • the closure 10 may be manufactured using a one-piece molding process, as described further below.
  • the closure 10 may include a top cover portion 20, a top cylindrical band portion 30 with upper and lower margins 30a and 30b, respectively, and a bottom cylindrical band portion 40 with upper and lower peripheral margins 40a and 40b, respectively.
  • top cylindrical band portion 30 and the bottom cylindrical band portion 40 are integrally formed and connected, and these portions 30, 40 as a single unit may be referred to in the application as the cylindrical closure portion 15.
  • the top cylindrical band portion 30 and the bottom cylindrical band portion 40 are connected by a line of weakness 50 as described below.
  • the top cylindrical band portion 30 has a circumferential projection 34 that is recessed from the outer side of the top cylindrical band portion 30 and extends upwardly and inwardly.
  • the bottom of the projection 34 provides an annular ledge 18.
  • the top cover panel 20 may consist of a paper disk or the like that may be printed on its upper side for product identification, marketing information, graphics etc. Particularly for use with ice-cream and food products, the cover panel 20 will have a polymer layer attached to the underside for keeping moisture from the product from entering through the paper. In the embodiment illustrated in FIGS. 3, 6A, 6B, 7A and 7B, the top cover panel 20 is continuous with the annular ledge 18.
  • the bottom cylindrical band portion 40 has a plurality of circumferentially spaced tamper evident tooth system 70 (may also be referred to herein as tamper resistant teeth). Extending upwardly and inwardly from the lower peripheral margin 40b of the bottom cylindrical band 40 at the plurality of tamper evident tooth system 70 are a plurality of circumferentially spaced teeth 60.
  • the plurality of teeth 60 lock under the rim of the container when the closure 10 is first pushed downwardly to seal the container.
  • the plurality of teeth 60 act as a tamper resistant mechanism on the closure 10.
  • the plurality of teeth 60 may include notches 64, 66 located at the right and left sides of a top edge 62 of the teeth 60.
  • the notches 64,66 may further facilitate the locking engagement of the plurality of teeth 60 of the rim of the container.
  • each tamper evident tooth system 70 between the plurality of teeth 60 and the lower peripheral edge 30b of the top cylindrical band portion 30 is an open space.
  • Each tamper evident tooth system 70 further has a plurality of projections 72 that connect the plurality of teeth 60 to the bottom peripheral area 30b of the top cylindrical band portion 30.
  • the plurality of projections 72 may be seen when viewing the outer side of the closure 10, providing an effective means for determining if the closure 10 has been tampered with . Additionally, the plurality of projections 72 may function to increase the force of engagement of the plurality of teeth 60 against the lip of the container.
  • each tamper evident tooth system 70 there are two or more projections 76 that are connected to the bottom of the plurality of teeth 60 to the lower peripheral margin 40b of the bottom cylindrical band portion 40.
  • the projections 76 may provide additional rigidity to the plurality of teeth 60 and also may assist in increasing the force of engagement of the plurality of teeth 60 against the lip of the container.
  • the upper peripheral margin 40a of the bottom cylindrical band portion 40 is thinned and weakened.
  • the line of weakness 50 includes one or more of a
  • the bottom cylindrical band portion 40 is provided with a gripping means.
  • the bottom cylindrical band 40 is formed with an accessible edge portion 45 disposed at a location along the outwardly facing surface.
  • the accessible edge portion 45 may include projections or ridges on its outer surface that assist a user's ability to grip and hold the portion 45.
  • the bottom cylindrical band portion 40 below the line of weakness 50 can be removed with the plurality of teeth 60 as a tear-away strip. That is, the line of weakness 50 is ruptured and the bottom cylindrical band portion 40 having the plurality of teeth 60 is easily removed from the closure 10 and from the container (not shown).
  • the closure 10 has a multi-snap closing.
  • the inner surface 32 of the top cylindrical band portion 30 may have a plurality of continuous annular ridges 38 extending inwardly along the circumference of the inner surface 32.
  • the plurality of continuous annular ridges 38 provide multiple contact points against a paperboard or cardboard rim 102 of a container 100.
  • the plurality of continuous annular ridges 38 provide multiple places to contact the paperboard rim 102, thereby improving the seal of the closure 10 on the container 100.
  • the plurality of continuous annular ridges 38 provide an improved mechanism for resealing the container 100.
  • the top cylindrical band 30 and the bottom cylindrical band 40 of the closure 10 may be manufactured by a one-piece molding process, such as injection- molding, using a single mold. This one-step process may help to simplify
  • the closure 10 may be molded using any suitable polymer, for example any suitable food-grade plastic when used as a closure for a food container (e.g., used as a lid on a yogurt or ice cream container).
  • the cover panel 20 may be made of the same plastic material as the top cylindrical band portion 30 and the bottom cylindrical band portion 40. Accordingly, in this embodiment, the cover panel 20, the top cylindrical portion 30 and the bottom cylindrical portion 40 may be manufactured by a one-piece molding process, such as injection-molding, using a single mold.
  • the closure 10 of the present application has specific elements that facilitate the molding process. As shown in FIGS. 1 and 2, the closure 10 has one or more openings or gates 80 located on the upper peripheral portion 30a of the top cylindrical band portion 30. The gates 80 act as an opening for the plastic resin to enter a mold and fill the mold cavity.
  • the upper peripheral portion 40a of the bottom cylindrical band portion 40 has multiple tooth channels that allow the plastic to flow into the tamper evident tooth system 70.
  • the tamper evident tooth system 70 includes the plurality of teeth 60 that is formed on the bottom cylindrical band 40 and the plurality of projections 72.
  • the plurality of projections 72 define and/or delineate the tooth channels in the corresponding mold.
  • the tooth channels improve the process of filling the mold cavity and also increases the speed by which the tamper evident tooth system 70 that includes the plurality of teeth 60 and the projections 72 are formed.
  • the tooth channels reduce the amount of defects in the tamper evident tooth system 70.
  • the tooth channels further facilitate the creation of larger and thicker tamper resistant bands than
  • the tamper evident tooth system 70 has edges 64, 66 that slope inwardly.
  • the cover panel 20 is inserted into the mold.
  • the mold is filled with resin by injection.
  • the resin covers the edge of the paper cover panel 20, creating the lid.
  • the mold then collapses at the edges of the tamper evident tooth system 70 to facilitate and the ejection of the part from the mold.
  • FIG. 4A illustrates the closure 10 with a container 100 and FIG. 4B illustrates the closure 10 attached to the container 100.
  • the disc is inserted into the mold and then plastic resin is molded around the top and bottom to hold it in place.
  • a coating of suitable adhesive may be applied to either of the outer edge of the facing surfaces prior to insertion of cover panel 20 onto the annular ledge 18 located on the bottom of the projection 34.
  • heating, ultrasonic welding, or spin welding may be used.
  • the cover panel 20 is secured to the top cylindrical band 30, by the interference fit in recess 19.
  • the cover panel 20 is secured to the cylindrical closure portion 15 prior to attaching the closure 10 to the container 100 (FIG. 4B).
  • the closure 10 is attached to the container 100 by applying a downward force to the top to the closure 10 onto the top of the container 100.
  • the plurality of teeth 60 of the closure 10 lock under the rim of the container when the closure 10 is pushed downwardly to seal the container.
  • FIGS. 6A and 6B illustrate an embodiment for incorporating the cover panel 20 into the cylindrical closure portion 15.
  • the cover portion 20 may be positioned above the container 100.
  • the cover portion 20 may be placed to sit and rest on the circumferential paperboard rim 102 of the container 100.
  • the cylindrical closure portion 15 is positioned above the cover portion 20.
  • the container 100 would contain a material or food product to be sealed.
  • the cover portion 20 may also have an adhesive applied to its top circumference to further secure the cover portion 20 to annular ledge 18 of the top cylindrical band portion 30.
  • the plurality of teeth 60 lock under the rim of the container when the closure 10 pushed downwardly to seal the container.
  • the plurality of continuous annular ridges 38 provide multiple contact points against the paperboard rim 102 of a container 100, providing an improved interference fit. This improves the seal of the closure 10 on the container 100.
  • the plurality of continuous annular ridges 38 provide an improved mechanism for resealing the container 100.
  • the lid is circular. In other embodiments, it is rectangular, oval, square, or other shapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un élément de fermeture à poussoir pour un récipient à indicateur d'effraction. La fermeture a une partie de bande cylindrique supérieure, une partie de bande cylindrique inférieure et un couvercle supérieur. La bande supérieure a une pluralité de nervures annulaires continues s'étendant vers l'intérieur le long de la circonférence de sa surface intérieure pour entrer en contact avec la surface latérale du récipient. La bande inférieure a une pluralité de dents rigides s'étendant depuis une marge périphérique inférieure de la bande inférieure dans une direction allant vers le haut et vers l'intérieur à des fins de mise en prise de verrouillage contre la lèvre du récipient. La pluralité de dents sont reliées à une marge périphérique inférieure de la bande supérieure par une pluralité de parties saillantes servant à fournir une indication visuelle d'effraction. Une pluralité de canaux de dents sont positionnés entre la marge inférieure de la bande supérieure et la marge supérieure de la bande inférieure pour faciliter l'écoulement de résine plastique lors de la production de la pluralité de dents.
EP14903692.3A 2014-10-07 2014-12-12 Couvercle à indicateur d'effraction et son procédé de fabrication Active EP3204307B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462060730P 2014-10-07 2014-10-07
PCT/CA2014/051209 WO2016054720A1 (fr) 2014-10-07 2014-12-12 Couvercle à indicateur d'effraction et son procédé de fabrication

Publications (3)

Publication Number Publication Date
EP3204307A1 true EP3204307A1 (fr) 2017-08-16
EP3204307A4 EP3204307A4 (fr) 2018-09-12
EP3204307B1 EP3204307B1 (fr) 2021-09-22

Family

ID=55652422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14903692.3A Active EP3204307B1 (fr) 2014-10-07 2014-12-12 Couvercle à indicateur d'effraction et son procédé de fabrication

Country Status (13)

Country Link
US (1) US20170305615A1 (fr)
EP (1) EP3204307B1 (fr)
AU (2) AU2014408671B2 (fr)
BR (1) BR112017006979B1 (fr)
CA (1) CA2963825C (fr)
CL (1) CL2017000376A1 (fr)
CO (1) CO2017003463A2 (fr)
CR (1) CR20170126A (fr)
DK (1) DK3204307T3 (fr)
ES (1) ES2900854T3 (fr)
MX (1) MX395494B (fr)
PE (1) PE20170614A1 (fr)
WO (1) WO2016054720A1 (fr)

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US20170355495A1 (en) 2016-06-08 2017-12-14 N2 Packaging Systems, Llc Child resistant and senior friendly can lid
US11834237B2 (en) 2017-06-07 2023-12-05 N2 Packaging Systems, Llc Child resistant double seam container lid adapter ring
US11958666B2 (en) 2017-06-07 2024-04-16 N2 Packaging Systems, Llc Child resistant double seam container lid
CN110979890A (zh) * 2019-12-19 2020-04-10 瑞安市贝斯特机械有限公司 防盗纸盖及防盗纸杯
WO2021237300A1 (fr) * 2020-05-28 2021-12-02 Zipform Packaging Pty Ltd Contenant et ensemble joint
US20220087217A1 (en) * 2020-09-21 2022-03-24 Brandon D. Pierce Portable pet travel cup with prefilled water and sealable lid
USD1081353S1 (en) 2022-01-21 2025-07-01 Ipl Plastics Inc. Lid for a container
USD1087758S1 (en) 2022-01-21 2025-08-12 Ipl Plastics Inc. Lid for a container

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Also Published As

Publication number Publication date
EP3204307A4 (fr) 2018-09-12
MX2017004377A (es) 2017-06-22
CA2963825A1 (fr) 2016-04-14
AU2014408671A1 (en) 2017-05-25
CO2017003463A2 (es) 2017-06-30
PE20170614A1 (es) 2017-05-24
MX395494B (es) 2025-03-25
AU2017232086A1 (en) 2017-10-12
EP3204307B1 (fr) 2021-09-22
CL2017000376A1 (es) 2017-11-03
ES2900854T3 (es) 2022-03-18
WO2016054720A1 (fr) 2016-04-14
DK3204307T3 (da) 2022-01-03
BR112017006979B1 (pt) 2022-10-18
AU2014408671B2 (en) 2017-11-02
US20170305615A1 (en) 2017-10-26
AU2017232086B2 (en) 2018-09-27
CR20170126A (es) 2017-05-19
CA2963825C (fr) 2018-08-21
BR112017006979A2 (pt) 2018-01-09

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