WO2004013010A1 - Couvercle inviolable de type a crochet - Google Patents

Couvercle inviolable de type a crochet Download PDF

Info

Publication number
WO2004013010A1
WO2004013010A1 PCT/CA2002/001311 CA0201311W WO2004013010A1 WO 2004013010 A1 WO2004013010 A1 WO 2004013010A1 CA 0201311 W CA0201311 W CA 0201311W WO 2004013010 A1 WO2004013010 A1 WO 2004013010A1
Authority
WO
WIPO (PCT)
Prior art keywords
lid
tamper evident
lip
rim
base
Prior art date
Application number
PCT/CA2002/001311
Other languages
English (en)
Inventor
Rick De Candido
Original Assignee
Stackteck Systems Limited
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 Stackteck Systems Limited filed Critical Stackteck Systems Limited
Priority to AU2002322932A priority Critical patent/AU2002322932A1/en
Priority to PCT/CA2003/000055 priority patent/WO2004013011A1/fr
Priority to AU2003202335A priority patent/AU2003202335A1/en
Priority to CA002493063A priority patent/CA2493063A1/fr
Priority to US10/522,517 priority patent/US20060163265A1/en
Priority to PCT/CA2003/000949 priority patent/WO2004013012A1/fr
Priority to AU2003245759A priority patent/AU2003245759A1/en
Priority to MXPA05001247A priority patent/MXPA05001247A/es
Publication of WO2004013010A1 publication Critical patent/WO2004013010A1/fr

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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0081—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of objects with parts connected by a thin section, e.g. hinge, tear line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/20—Frangible elements completely enclosed in closure skirt
    • 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
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/0012—Shape of the outer periphery having straight sides, e.g. with curved corners
    • B65D2543/00175—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond
    • B65D2543/00194—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond square or rectangular
    • 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
    • B65D2543/00342—Central part of the lid
    • B65D2543/0037—Flexible or deformable
    • B65D2543/00379—Flexible or deformable hinged or articulated, i.e. made of two or more parts hinged one to another
    • 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
    • B65D2543/00629—Massive bead
    • 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
    • B65D2543/00657—U-shaped or inverted U
    • 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
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00675—Periphery concerned
    • B65D2543/00694—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
    • B65D2543/00444—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
    • B65D2543/00722—Profiles
    • B65D2543/00768—U-shaped or inverted U
    • 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
    • B65D2543/00796—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
    • B65D2543/00787—Periphery concerned
    • B65D2543/00805—Segments

Definitions

  • This invention relates generally to injection molded containers and their lids. More specifically this invention relates to tamper evident lids which may be applied to standard containers.
  • Tamper evident (TE) features are very important in the packaging industry.
  • packages having tamper evident features generally require specific container and lid designs wherein the container and the lid are a unique combinatipn.
  • a disadvantage to this type of design is that expensive molds are required not only for the container but for the lid and the molds are often limited in design to a single product.
  • the lid may be applied onto such a container using conventional packaging equipment currently available in most automated filling lines.
  • the present invention provides a tamper evident lid having a plurality of tear tabs in its rim.
  • Each of the tear tabs has an inwardly and upwardly extending finger for interacting with a container lip.
  • a tamper evident lid for mounting over an opening of a container having sidewalls with a lip extending outwardly therefrom to define the opening.
  • the lid has a base, a rim extending about a perimeter of the base for receiving the lip and at least one finger extending inwardly from the rim and preferably toward the base for engaging an underside of the lip.
  • a respective membrane is provided on opposite sides of each of the fingers to define respective tear tabs about the rim and to facilitate outward tearing of the tear tabs away from the sidewalls.
  • Each finger has a length exceeding the distance between an inside of the lip and the sidewall.
  • Figure 1 is a perspective view from below of a tamper evident lid according to the present invention
  • Figure 2 is a perspective view from above of the lid of Figure 1 ;
  • Figure 3A is a perspective sectional view taken at line 3-3 of Figure 1 ;
  • Figure 3B is a view corresponding to Figure 3A but taken from the inside rather than from the outside of the lid;
  • Figure 4 is a perspective sectional view taken on line 4-4 of Figure 1 ;
  • Figure 5 is an axial section of an outer portion of a lid according to the present invention illustrating how it mounts over a container;
  • Figure 6 is an axial sectional view of a lid according to the present invention being molded and illustrating the associated mold components
  • Figure 7 is a schematic view of an injection molding arrangement for forming a lid according to the present invention. DESCRIPTION OF PREFERRED EMBODIMENTS
  • a tamper evident lid (“lid”) according to the present invention is generally illustrated by reference 10 in the accompanying illustrations.
  • the lid 10 has a base 12 and a rim 14 which extends about the perimeter of the base 12.
  • Discrete fingers 20 extend from an inside of the rim 14. The fingers extend radially inwardly and toward the base 12 (inwardly and upwardly as illustrated in the figures).
  • the lid 10 is intended for mounting over a "standard container” as illustrated in Figure 5.
  • a portion of a sidewall of such a container is shown in dashed lines at reference 30.
  • the sidewall 30 terminates in an outwardly and downwardly extending lip 32.
  • the lip 32 defines an opening 34 over which the lid 10 may be mounted.
  • Each of the fingers 20 has a length which exceeds the distance or "gap" between the inside of the rim 14 and the outside of the sidewall 30 as illustrated at reference 40.
  • the length of the fingers 20 exceeds the breadth of the gap as illustrated by arrow 44. Accordingly, when the lid 10 is forced over the lip 32, the fingers 20 flex toward a retracted position against the inside of the rim 14. Once fully past the lip 32, the fingers flex inwardly, away from the rim 14, to rest against the sidewall 30.
  • the material of the lid 10 must have a desired degree of resiliency which is characteristic of the type of plastics typically used for such lids (polyethylene for example). Basically the fingers must be able to flex without breaking off.
  • tear tabs 24 may be pried away from the sidewall 30 by tearing the frangible membranes 22 to either side to move the fingers 20 out of engagement with the lip 32. This enables removal of the lid 10 from the container but only by leaving evidence in the form of torn frangible membranes.
  • a membrane hinge 26 may be provided at the top of the tear tabs 24 to maintain the tear tabs 24 affixed to the remainder of the lid 10 after tearing of the frangible membranes 22. This avoids having to tear the tear tabs 24 out entirely in order for the fingers 20 to be disengaged from the lip 32. Without the hinge 26, the resiliency of the lid 10 might otherwise keep urging the fingers 20 into engagement with the lip 32 even with the frangible membranes 22 torn.
  • the membrane hinge may be substituted for a further frangible membrane to allow complete removal of the tear tabs 24.
  • An inwardly extending rib 50 may be provided about the rim 14 of the lid 10 between the break tabs 24.
  • the ribs 50 serve to further secure the lid 10 over the opening 34.
  • the rim 14 at the tear tabs 24 is thinner below the finger 20 (distal the base 12) than above the finger 20 (proximal the base 12) by an amount corresponding to the thickness of the fingers 20.
  • Figures 6 and 7 illustrate a mold assembly for plastic injection molding of a lid 10.
  • the mold assembly includes a cavity 100 which receives a two-part mold core made up of a removing core poppet 102 and a core base 104.
  • a stripper ring 110 extends about the core base to engage a lower edge 18 of the rim 14 of the lid 10.
  • the cavity 100 and moving core poppet 102 are movable in opposite relative directions as are the core base 104 and moving core poppet 102.
  • the formed lid 10 will typically shrink onto the moving core poppet 102 and core base 104 enabling the lid 10 in combination with the core poppet 102 and core base 104 and stripper ring 110 to be moved away from the cavity 100 as the mold is opened.
  • the core poppet 102, stripper ring 110 and lid 10 move away from the core base 104 toward the cavity 100.
  • the core poppet 102 stops moving and the stripper ring 110 pushes the lid off of the poppet.
  • the finger 20 flexes away from the base 12 of the lid 10 and is accommodated by the recess 20 as the lid 10 is lifted off of the moving core poppet 104.
  • the fingers 20 will generally retain enough "memory” to resiliently flex toward their original position as the formed lid coops after stripping.
  • the fingers 20 may be configured to cool so as to point away from the base 12 ("down") and be pushed into an "upwards” position mechanically after molding.
  • tear tabs 24 are illustrated, other numbers are possible. Generally it is expected that six to eight will prove an optimal compromise between security and effort to remove the lid 10. It may be possible to have as few as one tear tab 24 if it is broad enough. Two or more is preferable. It is generally not necessary to lift away all of the tear tabs 24 for removal of the lid 10. Lifting away the tear tabs 24 about half the perimeter and sometimes less will generally prove sufficient to enable removal of the lid 10.

Abstract

L'invention concerne un couvercle inviolable (10) à monter sur une ouverture de contenant, lequel couvercle présentant des parois latérales (30) dotées d'une lèvre (32) s'étendant vers l'extérieur à partir desdites parois, pour définir l'ouverture (34). Le couvercle (10) présente une base (12), un bord (14) s'étendant autour d'un périmètre de la base (10) pour recevoir la lèvre (32) et une pluralité de doigts (20) s'étendant vers le haut, à partir du bord (14), et en direction de la base (12), pour un engagement avec le côté intérieur de la lèvre (32). Une membrane de sûreté (22) est située sur les côtés opposés de chaque doigt (20), pour définir des zones de doigt correspondantes autour du bord (14), et pour faciliter le déchirement extérieur des zones de doigt dans la direction opposée aux parois latérales (30). Chaque doigt (20) présente une longueur dépassant la distance entre une partie intérieure de la lèvre (32) et la paroi latérale (30).
PCT/CA2002/001311 2002-08-01 2002-08-26 Couvercle inviolable de type a crochet WO2004013010A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AU2002322932A AU2002322932A1 (en) 2002-08-01 2002-08-26 Hook style tamper evident lid
PCT/CA2003/000055 WO2004013011A1 (fr) 2002-08-01 2003-01-17 Couvercle inviolable de type a crochets
AU2003202335A AU2003202335A1 (en) 2002-08-01 2003-01-17 Hook style tamper evident lid
CA002493063A CA2493063A1 (fr) 2002-08-01 2003-06-20 Couvercle anti-fraude a accrochage
US10/522,517 US20060163265A1 (en) 2002-08-01 2003-06-20 Hook style tamper evident lid
PCT/CA2003/000949 WO2004013012A1 (fr) 2002-08-01 2003-06-20 Couvercle anti-fraude a accrochage
AU2003245759A AU2003245759A1 (en) 2002-08-01 2003-06-20 Hook style tamper evident lid
MXPA05001247A MXPA05001247A (es) 2002-08-01 2003-06-20 Tapa evidente reflectora estilo gancho.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39973102P 2002-08-01 2002-08-01
US60/399,731 2002-08-01

Related Child Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2003/000055 Continuation-In-Part WO2004013011A1 (fr) 2002-08-01 2003-01-17 Couvercle inviolable de type a crochets

Publications (1)

Publication Number Publication Date
WO2004013010A1 true WO2004013010A1 (fr) 2004-02-12

Family

ID=31495762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2002/001311 WO2004013010A1 (fr) 2002-08-01 2002-08-26 Couvercle inviolable de type a crochet

Country Status (4)

Country Link
US (1) US20060163265A1 (fr)
AU (3) AU2002322932A1 (fr)
MX (1) MXPA05001247A (fr)
WO (1) WO2004013010A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3190061A1 (fr) 2016-01-08 2017-07-12 M.P.G. Manifattura Plastica S.p.A. Couvercle de récipient

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7694837B2 (en) * 2005-05-17 2010-04-13 Huhtamaki, Inc. Tamper evident container lid
US8251242B2 (en) 2005-06-10 2012-08-28 Pwp Industries Tamper-evident container with extended band
US7631776B2 (en) * 2005-06-10 2009-12-15 Pwp Industries Tamper evident container with tear-apart parts
US8083089B2 (en) 2005-07-13 2011-12-27 Pwp Industries Inc. Versatile tamper-evident food container
US8251249B1 (en) 2005-06-24 2012-08-28 Pwp Industries Hangable tamper resistant packaging system
US7568589B2 (en) * 2005-06-24 2009-08-04 Pwp Industries Edge-tearing tamper-evident container
US8833589B2 (en) * 2005-12-21 2014-09-16 Pactiv Packaging Inc. Enhanced tamper evident bowl with blocked tab
US8360262B2 (en) 2005-12-21 2013-01-29 Pactiv Packaging Inc. Integrated food packaging system having a cup, a container, and a cover
US7938286B2 (en) 2007-02-13 2011-05-10 Gateway Plastics, Inc. Container system
US20090084804A1 (en) * 2007-10-01 2009-04-02 Hospira, Inc. Snap-over port cap
US8127961B2 (en) 2007-11-10 2012-03-06 Pwp Industries Double ribbed secure container
US8322555B2 (en) 2008-05-13 2012-12-04 Pwp Industries, Inc. Resealable tamper-evident container assembly and lid
US10220986B2 (en) 2009-03-06 2019-03-05 Pactiv Corporation Tamper evident container with full tab
US8146766B2 (en) 2009-04-29 2012-04-03 Pwp Industries Enhanced secure container
US20140061215A1 (en) * 2011-05-05 2014-03-06 Rich Cup Bio-Chemical Technology Co., Ltd. Lid
US10167117B2 (en) 2011-05-05 2019-01-01 Rich Cup Bio-Chemical Technology Co., Ltd. Lid
US8733550B2 (en) * 2012-03-09 2014-05-27 Wki Holding Company, Inc. Nesting container lids with snap on wings
CA2984298A1 (fr) 2016-10-28 2018-04-28 Genpak, Llc Contenant inviolable dote d'une charniere a patte
US10889413B2 (en) 2016-10-28 2021-01-12 Genpak, Llc Tamper-evident container with a tab extending beyond a hinge
US10894635B2 (en) 2016-10-28 2021-01-19 Genpak, Llc Tamper-evident container with a wide tab extending beyond a hinge
US10220985B2 (en) 2016-10-28 2019-03-05 Genpak, Llc Tamper-evident container with a tabbed hinge
GB201802943D0 (en) * 2018-02-23 2018-04-11 Mead Johnson Nutrition Co Improved flip top plastic lid
US10669080B2 (en) 2018-09-19 2020-06-02 Sonoco Development, Inc. Tamper evident closure
US11472613B2 (en) 2019-04-23 2022-10-18 Berry Global, Inc. Selectively openable closure for a container
US20230202722A1 (en) * 2020-05-07 2023-06-29 Top Grade Molds Ltd. Double lock lid with flexible tab
CA3137421A1 (fr) * 2020-11-05 2022-05-05 Ipl Plastics Inc. Couvercle a alteration evidente pour un recipient

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977559A (en) * 1972-10-30 1976-08-31 Jerome Kreeger Lid for food container
DE3803153A1 (de) * 1987-02-17 1988-08-25 Hermann Fink Kunststoff Spritz Schutzkappe zum aufsetzen auf fassverschluesse
JPS6486964A (en) * 1987-06-16 1989-03-31 Goet Richard Claas Sanitary suspension
US5540342A (en) * 1994-12-22 1996-07-30 Rathbun Family Real Estate Group Tamper resistant lid
JPH10218209A (ja) * 1997-02-13 1998-08-18 Sato Shosan:Kk バージンシール付き樹脂製キャップ
DE29912652U1 (de) * 1999-07-27 1999-11-04 Rpc Bramlage Gmbh Originalitätsverschluß für Wechselbehälter, insbesondere einer Abfüllvorrichtung
FR2782700A1 (fr) * 1998-08-31 2000-03-03 Crown Cork & Seal Tech Corp Coiffe d'inviolabilite pour col de recipient

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329536A1 (fr) * 1973-07-02 1977-05-27 Somepla Sa Nouvelle capsule a vis inviolable et imperdable
US4485932A (en) * 1983-07-11 1984-12-04 Owens-Illinois, Inc. Child resistant package
US4805792A (en) * 1984-04-17 1989-02-21 Continental White Cap, Inc. Litterless tamper indicating closure
AU605222B2 (en) * 1986-11-21 1991-01-10 Lagan Plast Ab A snap locking device for a container with a cover
US5249704A (en) * 1992-09-11 1993-10-05 Klaus Boetzkes Sealing cap
US5853095A (en) * 1992-12-18 1998-12-29 White Cap, Inc. Tamper evident splitting closure
US5373954A (en) * 1993-03-19 1994-12-20 Sunbeam Plastics Corporation Tamper indicating closure
DE69504065T2 (de) * 1994-06-20 1998-12-10 Anchor Hocking Packaging Originalitäts-scharnierverschluss
US5893474A (en) * 1994-06-24 1999-04-13 Crown Cork Ag Screw cap with anti-tamper strip
US5725115A (en) * 1995-02-21 1998-03-10 Crown Cork Ag Closure cap with tether
US5593054A (en) * 1995-04-28 1997-01-14 Ideal Ideas, Inc. Child resistant flip cap with collar
US5947323A (en) * 1996-08-27 1999-09-07 Fort James Corporation Cup lid having combined straw slot depression and tear back lid retainer
DE19700308A1 (de) * 1997-01-09 1998-07-16 Alexander Dipl Ing Schmitz Schraubverschluß aus Kunststoff für Flaschen
US5984125A (en) * 1998-01-20 1999-11-16 Zapata Innovative Closures, Inc. Tamper evident closure for beverages
CN1168635C (zh) * 1999-11-30 2004-09-29 高级模具有限公司 具有拆封带的容器盖子

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977559A (en) * 1972-10-30 1976-08-31 Jerome Kreeger Lid for food container
DE3803153A1 (de) * 1987-02-17 1988-08-25 Hermann Fink Kunststoff Spritz Schutzkappe zum aufsetzen auf fassverschluesse
JPS6486964A (en) * 1987-06-16 1989-03-31 Goet Richard Claas Sanitary suspension
US5540342A (en) * 1994-12-22 1996-07-30 Rathbun Family Real Estate Group Tamper resistant lid
JPH10218209A (ja) * 1997-02-13 1998-08-18 Sato Shosan:Kk バージンシール付き樹脂製キャップ
FR2782700A1 (fr) * 1998-08-31 2000-03-03 Crown Cork & Seal Tech Corp Coiffe d'inviolabilite pour col de recipient
DE29912652U1 (de) * 1999-07-27 1999-11-04 Rpc Bramlage Gmbh Originalitätsverschluß für Wechselbehälter, insbesondere einer Abfüllvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3190061A1 (fr) 2016-01-08 2017-07-12 M.P.G. Manifattura Plastica S.p.A. Couvercle de récipient

Also Published As

Publication number Publication date
AU2003245759A1 (en) 2004-02-23
MXPA05001247A (es) 2006-03-08
AU2002322932A1 (en) 2004-02-23
AU2003202335A1 (en) 2004-02-23
US20060163265A1 (en) 2006-07-27

Similar Documents

Publication Publication Date Title
WO2004013010A1 (fr) Couvercle inviolable de type a crochet
US4463869A (en) Tamper-evident spice can lid
EP0796801B1 (fr) Capuchon articulé séparable d'une bouteille au moment de la mise au rebut
CA2491184C (fr) Fermeture a bande dechirable
US4886184A (en) Plastic container lid
US6959829B2 (en) Self-adjusting re-sealable spring center seal closure
AU2010214759B2 (en) Hinged Lid Container
EP1971530B1 (fr) Capuchon à témoin d'effraction
US20060006178A1 (en) Tamper-indicating food container lid
SK98895A3 (en) Scwrew-top closure, method of its manufacture, scwrew-top closure assembly with vessel and mould for carrying out the method
US6260721B1 (en) Plastic cap
EP1052183B1 (fr) Moyens de garantie pour un récipient
EP1923321B1 (fr) Procédé de fabrication d'une gamme de produits d'emballage en plastique moulés à injection comprenant un seau et un couvercle
CA1243634A (fr) Contenant en matiere plastique
EP3390242B1 (fr) Couvercle d'emballage
WO1996027534A1 (fr) Conteneurs avec couvercles
JP4575590B2 (ja) 樹脂キャップ
EP1312560A2 (fr) Couvercle pour récipient
EP0553145B1 (fr) Recipient d'emballage non reutilisable
WO2004013011A1 (fr) Couvercle inviolable de type a crochets
JP3748604B2 (ja) 分別廃棄容易な合成樹脂製容器蓋
CA2493063A1 (fr) Couvercle anti-fraude a accrochage
WO2004013012A1 (fr) Couvercle anti-fraude a accrochage
JP4762426B2 (ja) 分別廃棄可能なキャップ
CN115052815B (zh) 封盖

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP