US20050092750A1 - Method of joining separable components and container closure system formed by the same - Google Patents

Method of joining separable components and container closure system formed by the same Download PDF

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Publication number
US20050092750A1
US20050092750A1 US10/854,925 US85492504A US2005092750A1 US 20050092750 A1 US20050092750 A1 US 20050092750A1 US 85492504 A US85492504 A US 85492504A US 2005092750 A1 US2005092750 A1 US 2005092750A1
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United States
Prior art keywords
closure
container
tamper
evidencing
interlocking
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
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US10/854,925
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English (en)
Inventor
Richard Lohrman
Brian Adams
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Portola Packaging Inc
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Individual
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Priority to US10/854,925 priority Critical patent/US20050092750A1/en
Assigned to PORTOLA PACKAGING, INC. reassignment PORTOLA PACKAGING, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ADAMS, BRIAN M., LOHRMAN, RICHARD D.
Publication of US20050092750A1 publication Critical patent/US20050092750A1/en
Priority to US11/610,217 priority patent/US20070095835A1/en
Priority to US11/929,009 priority patent/US20080272084A1/en
Priority to US11/929,160 priority patent/US7832579B2/en
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT reassignment GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT SECURITY AGREEMENT Assignors: PORTOLA PACKAGING, INC.
Assigned to WAYZATA INVESTMENT PARTNERS LLC reassignment WAYZATA INVESTMENT PARTNERS LLC SECURITY AGREEMENT Assignors: PORTOLA PACKAGING, INC.
Assigned to PORTOLA PACKAGING, INC. reassignment PORTOLA PACKAGING, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
Assigned to PORTOLA PACKAGING, INC. reassignment PORTOLA PACKAGING, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WAYZATA INVESTMENT PARTNERS LLC
Assigned to WELLS FARGO FOOTHILL, LLC, AS AGENT reassignment WELLS FARGO FOOTHILL, LLC, AS AGENT SECURITY AGREEMENT Assignors: PORTOLA PACKAGING, INC.
Assigned to WAYZATA INVESTMENT PARTNERS, LLC (AGENT FOR THE SUBORDINATED CREDITORS) reassignment WAYZATA INVESTMENT PARTNERS, LLC (AGENT FOR THE SUBORDINATED CREDITORS) SECURITY AGREEMENT Assignors: PORTOLA ALLIED TOOL, INC.
Priority to US12/704,650 priority patent/US20100140268A1/en
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION, AS US AGENT AND CANADIAN AGENT reassignment GENERAL ELECTRIC CAPITAL CORPORATION, AS US AGENT AND CANADIAN AGENT SECURITY AGREEMENT Assignors: PORTOLA PACKAGING, INC.
Assigned to PORTOLA PACKAGING, INC. reassignment PORTOLA PACKAGING, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WELLS FARGO CAPITAL FINANCE, LLC, AS AGENT, (F/K/A WELLS FARGO FOOTHILL, LLC, AS AGENT)
Priority to US12/892,218 priority patent/US20110011821A1/en
Priority to US12/965,160 priority patent/US20110100948A1/en
Assigned to PORTOLA PACKAGING, INC. reassignment PORTOLA PACKAGING, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: GENERAL ELECTRIC CAPITAL CORPORATION, AS U.S. AGENT AND CANADIAN AGENT
Abandoned legal-status Critical Current

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Classifications

    • 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
    • B29C45/16—Making multilayered or multicoloured 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • B65D47/103—Membranes with a tearing 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/36—Closures with frangible parts adapted to be pierced, torn, or removed, to provide discharge openings
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C2045/1601—Making multilayered or multicoloured articles the injected materials not being adhered or bonded to each other
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
    • 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

Definitions

  • This invention relates, in general, to a method of joining separable components and to container closure systems formed by the same, and more particularly to tamper-evidencing closure systems and methods for their use.
  • Tamper-evidencing closure systems are known and often include a closure having a removable tamper-evidencing portion that is monolithically formed with the remainder of the closure. Opening of such known closures generally involves fracturing the closure and tearing the tamper-evidencing portion from the remainder of the closure upon initial opening of the container.
  • One known type of closure system utilizes a cap having a skirt and a tamper-evident band dependent from and monolithically joined to a base of the skirt.
  • the band is engaged with complimentary structure on a corresponding container and is severed from the cap skirt when the closure is initially removed. The severing is allowed by making the interconnection between the tamper-evident band and the cap skirt frangible and easily broken.
  • discrete breakable “bridges” or a continuous thin “score line” is utilized to form the frangible connection.
  • Another known closure system involves monolithically molded pull-out membranes, as commonly employed on gable-top juice containers and some vegetable oil containers.
  • This system incorporates a removable membrane initially closing a dispensing orifice of the container.
  • the membrane is monolithically formed with additional structure appropriate for attachment to the container such as a weld flange or a snap attachment skirt.
  • the membrane is integrally connected to the attachment structure through a frangible line of weakness.
  • pull-out membrane closure systems generally include a membrane, a frangible score line, and an attachment structure which are monolithically molded in a single integral shot during an injection molding operation.
  • the frangible score line must easily and readily tear without excessive force.
  • the most applicable material in this regard is low density polyethylene, however, specifying that the frangible line be made of low density polyethylene further specifies that the membrane itself, and more importantly the attachment structure, be formed of the same low density polyethylene material. Disadvantageously, this can negatively impact potential applications, since the mechanical properties of low density polyethylene may not be appropriate to accomplish the performance required for package integrity.
  • a further problem intrinsic with pull out membrane technology is that substantial material flow is required across a thin frangible score line which connects the pull out membrane to the container attachment structure. This configuration may lead to unusual and unpredictable performance including, but not limited to, microscopic pin holes, lamination and difficult tearing resulting from physical properties of the material which may change as the material traverses the thin frangible scoreline.
  • one aspect of the present invention is directed to a method of joining separable components including: providing a first component having first interlocking structure; and molding a second component in a plastics injection molding process within a mold utilizing a surface of the first interlocking structure of the first component as a portion of the mold, the second component being formed with second interlocking structure complementary to the first interlocking structure which mechanically interlocks the first component and the second component, the mechanical interlock being releasable without fracture of at least one of the first and second interlocking structures.
  • the molding step further forms the mechanical interlock to be releasable without fracture of the first and second interlocking structures.
  • the molding step may form the first and second interlocking structures such that the interlocking structures cannot be reassembled after the mechanical interlock has been released.
  • the providing step is accomplished by providing the first interlocking structure with a recess having first trapezoidal cross-section and the forming step is accomplished by forming the second interlocking structure with a protrusion having a second trapezoidal cross-section complementary to the first trapezoidal cross-section.
  • Another aspect of the present invention is directed to a closure for a container including a first component having a first interlocking structure and a second, plastics injection molded component having a second interlocking structure molded in situ against the first interlocking structure.
  • the second interlocking structure is complementary in shape to the first interlocking structure and is in mechanical interlocking engagement with the first interlocking structure.
  • the mechanical interlocking engagement is releasable without fracture of at least one of the first and second interlocking structures.
  • the mechanical interlocking engagement is releasable without fracture of the first and second interlocking structures.
  • the first and second interlocking structures cannot be reassembled after the mechanical interlocking engagement has been released.
  • Yet another aspect of the present invention is directed to a tamper-evidencing closure for a container having a container opening in which the closure includes a closure base having a dispensing aperture adapted for mounting on the container adjacent the container opening, a sealing member for closing the dispensing aperture and the container opening, and a connection member releasably interconnecting the closure base and the sealing member.
  • One of the closure base and the sealing member is formed of a first material and the connection member is formed of a second material, the second material being more pliable than the first material.
  • the closure base further includes an annular top, a well defined by an inner skirt depending downwardly from an inner perimeter of the annular top, and an annular bottom extending radially inward from the inner skirt, the bottom having a closure aperture for accessing the container opening, and the first interlocking structure including a recess located on the annular bottom.
  • the recess may be an outwardly-extending trapezoidally-shaped recess.
  • the closure base may include a retainer for securing the closure base to the container.
  • the closure base may include an outer skirt depending downwardly from an outer periphery of the annular top, the retainer including a retaining band extending inwardly and upwardly from a lower portion of the outer skirt.
  • the sealing member includes a pull-ring.
  • One of the sealing member and the connection member may include a peripheral lip and the other one of the sealing member and the connection member may include a continuous ring having an engagement groove cooperating with the peripheral lip to mechanically interlock the connection member and the sealing member.
  • Either the closure base and/or the connection member may include a recess and the other of the closure base and/or the connection member may include a protrusion complementary in shape to the recess.
  • the protrusion and/or the recess may have trapezoidally-shaped cross-sectional profiles.
  • the closure base may be formed of polypropylene, high-density polyethylene, and/or low-density polyethylene.
  • the sealing member may be formed of polypropylene, high-density polyethylene, and/or low-density polyethylene.
  • the connection member may be formed of low-density polyethylene and/or thermoplastic elastomer.
  • the closure may be dimensioned and configured for use with a container having a container opening, a neck finish, and a locking surface on the neck finish.
  • the closure may further include a plurality of retaining flaps extending radially inwardly and upwardly from a lower portion of an outer skirt of the closure base, each the retaining flap including an oblique wing having a arcuate inner edge adapted to engage the locking surface of the container, wherein each wing includes a concave lower surface dimensioned and configured to closely approximate the outer diameter of the neck finish below the locking surface allowing substantially the entire the inner edge to contact the locking surface.
  • the neck finish may include an anti-rotation structure
  • the closure may further include a vertically extending gusset extending along at least one of the flaps and being dimensioned and configured to abut against the anti-rotation structure of the neck finish.
  • the closure may further include a plurality of biasing ribs extending radially inward from an inner surface of the outer skirt toward a respective one of the flaps to bias the inner edges into contact with the locking surface of the container.
  • the closure may further include a plurality of lines of weakness extending upwardly along a lower portion of an outer skirt of the closure base, the lines of weakness being dimensioned and configured to split upon at least partial removal of the closure from the container.
  • the lines of weakness may extend substantially vertically along the lower portion of the outer skirt.
  • the closure includes a closure base having a top and an annular outer skirt depending from a periphery of the top, a plurality of retaining flaps extending radially inwardly and upwardly from a lower portion of the outer skirt, each the retaining flap including an oblique wing having a arcuate inner edge adapted to engage the locking surface of the container, wherein each wing includes a concave lower surface dimensioned and configured to closely approximate the outer diameter of the neck finish below the locking surface allowing a majority of the inner edge to contact the locking surface.
  • the neck finish may include anti-rotation structure and the closure may further include a vertically extending gusset extending along at least one of the flaps and being dimensioned and configured to abut against the anti-rotation structure of the neck finish.
  • the closure may further include a plurality of biasing ribs extending radially inward from an inner surface of the outer skirt toward a respective one of the flaps to bias the inner edges into contact with the locking surface of the container when the closure is mounted on the container.
  • the closure may further include a plurality of circumferentially spaced lines of weakness extending substantially vertically along the lower portion of the outer skirt, the lines of weakness being dimensioned and configured to split upon partial removal of the closure from the container.
  • Yet another aspect of the present invention is directed to a tamper-evidencing closure for a container having a container opening, a neck finish, and a locking surface on the neck finish.
  • the closure includes a closure base having a top and an annular outer skirt depending from a periphery of the top, a retainer extending radially inwardly and upwardly from a lower portion of the outer skirt, and a plurality of circumferentially spaced lines of weakness extending biasing ribs extending upwardly along the lower portion of the outer skirt, the lines of weakness being dimensioned and configured to split upon partial removal of the closure from the container.
  • the plurality of lines of weakness extend substantially vertically along the lower portion of the outer skirt.
  • the plurality of lines of weakness may extend substantially parallel to one another.
  • the plurality of lines of weakness may extend from a bottom edge of the lower portion of the outer skirt.
  • An object of the present invention is to provide a tamper-evidencing closure system having interconnected discrete components that can be separated in a facile manner by a consumer to yield individual components that cannot be reassembled.
  • Another object of the present invention is to provide a method of forming the above-mentioned tamper-evidencing closure system.
  • Another object of the present invention is to provide a closure base that securely engages a locking surface of a container neck finish.
  • Yet another object of the present invention is to provide means to resist rotation between a closure base and a container neck finish.
  • a further object of the present invention is to provide tamper evidencing means extending along a lower skirt portion of a closure.
  • the tamper-evidencing closure system of the present invention has other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated in and form a part of this specification, and the following Detailed Description of the Invention, which together serve to explain the principles of the present invention.
  • FIG. 1 is a perspective view of a tamper-evidencing closure system in accordance with the present invention.
  • FIG. 2 is a top plan view of the closure system of FIG. 1 .
  • FIG. 3 is a side elevational view of the closure system of FIG. 1 .
  • FIG. 4 is a cross-sectional view of the closure system of FIG. 1 taken substantially along line 4 - 4 of FIG. 2 .
  • FIG. 5 is a cross-sectional view of the closure system of FIG. 1 taken substantially along the line 5 - 5 of FIG. 2 .
  • FIG. 6 is a cross-sectional view of the closure system of FIG. 1 taken substantially along the line 6 - 6 of FIG. 2 .
  • FIG. 7 is a perspective view of another tamper-evidencing closure system in accordance with the present invention.
  • FIG. 8 is a bottom perspective view of the closure system of FIG. 7 .
  • FIG. 9 is a top plane view of the closure system of FIG. 7 showing a closure base having a reclosure cap mounted thereon.
  • FIG. 10 is a cross-sectional view of the closure system of FIG. 7 taken substantially along the line 10 - 10 of FIG. 9 .
  • FIG. 11 is an enlarged detail of FIG. 10 .
  • FIG. 12 is a cross-sectional view of the closure system of FIG. 7 taken substantially along the line 11 - 11 of FIG. 9 .
  • FIG. 13 is an enlarged detail of FIG. 12 .
  • FIG. 14 is a perspective view, similar to FIG. 7 , of another tamper-evidencing closure system in accordance with the present invention.
  • FIG. 15 is a bottom perspective view of the closure system of FIG. 14 .
  • FIG. 16 is a cross-sectional view, similar to FIG. 4 , of another tamper-evidencing evidencing closure system in accordance with the present invention.
  • FIG. 17 is an upper perspective view of another tamper-evidencing closure system in accordance with the present invention.
  • FIG. 18 is a lower perspective view of the closure system of FIG. 17 .
  • FIG. 19 is a cross-sectional view of the closure system of FIG. 17 .
  • FIG. 20 is an upper perspective view of a neck finish of a container that may by used in combination with one or more of the above closure systems.
  • FIG. 21 is a side elevational view of the neck finish of FIG. 20 .
  • FIG. 22 is a cross-sectional, fragmentary plan view of the neck finish of FIG. 20 , taken substantially along line 22 - 22 of FIG. 21 .
  • FIG. 23 is a cross-sectional, fragmentary side elevational view of the neck finish of FIG. 20 , taken substantially along line 23 - 23 of FIG. 22 .
  • FIG. 24 is a partial cross-sectional, side elevational view of the closure system of FIG. 17 applied to the neck finish of FIG. 20 .
  • FIG. 25 is a cross-sectional, fragmentary plan view of the closure system of FIG. 17 applied to the neck finish of FIG. 20 , taken substantially along line 25 - 25 of FIG. 24 .
  • FIG. 26 is an upper perspective view of another closure system in accordance with the present invention.
  • FIG. 27 is an upper perspective view of a connection member of the closure system of FIG. 26 .
  • FIG. 28 is a plan view of the closure system of FIG. 26 .
  • FIG. 29 is an enlarged cross-sectional view of the closure system of FIG. 26 taken along line 29 - 29 of FIG. 28 .
  • FIG. 30 is an enlarged cross-sectional view of the closure system of FIG. 26 taken along line 30 - 30 of FIG. 28 .
  • FIG. 31 is an upper perspective view of another closure system in accordance with the present invention.
  • FIG. 32 is a lower perspective view of the closure system of FIG. 31 .
  • FIG. 33 is a fragmentary cross-sectional view of the closure system of FIG. 31 taken substantially along line 33 - 33 in FIG. 31 .
  • FIGS. 1-6 illustrate a tamper-evidencing closure system, generally designated 30 , which is adapted to be secured to a container (e.g., container 31 a shown in FIG. 10 ).
  • closure system 30 includes a closure base 34 that is adapted for mounting on the container, a sealing member 35 for sealing the opening and thus the contents of the container, and a connection member 36 for releasably connecting the sealing member 35 to the closure base 34 .
  • closure base 34 is generally dimensioned and configured to be secured to a container adjacent the opening thereof.
  • closure base 34 is configured to mate with a container of the type having a non-threaded neck finish of the snap-on variety (see, e.g., FIG. 23 ).
  • the closure base of the present invention is equally suited for use with other types of containers including, but not limited to, containers having threaded neck finishes as well as paperboard containers.
  • closure base 34 includes an annular top 39 and an outer skirt 40 depending downwardly from an outer periphery of annular top 39 .
  • An upper portion of outer skirt includes external cap-engaging threads 43 configured and dimensioned to releasably engage internal threads (e.g., cap threads 44 a as shown in FIG. 10 ) of a reclosure cap (e.g., cap 45 shown in FIG. 10 ).
  • a reclosure cap e.g., cap 45 shown in FIG. 10
  • a reclosure cap e.g., cap 45 shown in FIG. 10
  • the tamper-evidencing closure system of the present invention need not incorporate a removable cap.
  • a resealable or reclosure cap would not be necessary if the closure system of the present invention is to be used with a school milk container or other type of single serving container.
  • a lower portion 48 of skirt 40 includes retaining structure or a retainer 49 which securely engages closure base 34 on the container.
  • retainer 49 includes a retaining band 50 that extends radially inwardly and upwardly from lower portion 48 of skirt 40 and is configured to mate with the finish of the container.
  • lower portion 48 and retaining band 50 form a J-shaped structure that is dimensioned and configured to cooperate with a locking surface (e.g., locking surface 52 a shown in FIG. 10 ) on the container in a manner similar to that disclosed by U.S. Pat. No. 5,913,437 to Ma, the entire content of which is incorporated herein by this reference.
  • the retaining band 50 is configured to provide the primary engagement between closure base 34 and the container.
  • the J-shaped configuration facilitates application of closure base 34 to a container neck in that such configuration requires lower axial application force than other conventional closures.
  • this configuration also allows greater interference between the closure plug seal and the container, which in turn provides better sealing performance.
  • retaining band 50 includes a plurality of gussets 51 which are configured and dimensioned to cooperate with corresponding structure on the container neck in order to restrict rotational movement of closure base 34 with respect to container neck.
  • gussets 51 facilitates threading and unthreading the reclosure cap on closure base 34 because the gussets limit rotational movement between the closure base and the container.
  • retainer 49 includes a plurality of vertical lines of weakness 53 aligned with a corresponding number of drainage holes 53 located in retainer 49 adjacent the intersection of retaining band 50 and lower portion 48 of the outer skirt.
  • the configuration of the drainage holes 54 and vertical lines of weakness 53 provides an additional tamper-evidencing feature that facilitates damage to or destruction of closure base 34 in the event that someone attempt to remove it from the container once the closure base has been applied to the container.
  • lower portion 48 of the outer skirt will split along one or more vertical lines 53 thus providing visible evidence that the contents of the container may have been accessed and/or tampered with.
  • closure base need not be provided with such vertical lines of weakness and/or drainage holes 54 .
  • the vertical lines need not be aligned with the drainage holes in the retaining band to provide tamper-evidencing.
  • closure base 34 also includes an inner skirt 56 depending from an inner edge of annular top 39 and cooperates by way of an interference fit with the inside bore of the container neck (e.g., container neck 57 a shown in FIG. 11 ) to define a plug seal which serves as the primary seal between the tamper-evidencing closure and the container.
  • An annular bottom 58 extends radially inward from the bottom of inner skirt 56 .
  • Inner edge 61 of bottom 58 defines an aperture that is initially closed or sealed by sealing member 35 and connection member 36 . As discussed in greater detail below, a consumer may remove the sealing member and the connection member in order to gain access to the contents of the container.
  • the plug seal configuration of the present invention provides improved sealing performance as inner skirt 56 is supported at the top and bottom thereof.
  • the structural integrity of the top of inner skirt 56 is reinforced by annular top 39 while the structural integrity of the bottom is reinforced by annular bottom 58 .
  • the amount of application force required to apply the plug seal configuration of the present invention may be greater than a standard hollow plug, such increased application force is possible because the retainer configuration of the present invention requires a lesser amount of application force. Keeping the overall application force necessary to apply a closure to a container constant, more force can be applied to the plug seal configuration of closure system 30 because the configuration of retainer 49 requires less force, as is noted above.
  • connection member may directly interconnect the sealing member to the annular top in accordance with the present invention.
  • the primary seal may be located between the annular top and the container neck.
  • connection member may directly interconnect the sealing member and the outer skirt and/or other portion of the closure base.
  • the term “closure base” broadly refers to the component used to secure the tamper-evidencing closure system to a corresponding container.
  • closure base 34 is formed of polypropylene, high-density polyethylene (HDPE), low density polyethylene (LDPE), or other suitable material which provides the closure base with suitable structural integrity.
  • HDPE high-density polyethylene
  • LDPE low density polyethylene
  • closure base 34 is formed of polypropylene, high-density polyethylene (HDPE), low density polyethylene (LDPE), or other suitable material which provides the closure base with suitable structural integrity.
  • HDPE high-density polyethylene
  • LDPE low density polyethylene
  • closure system 30 also includes a sealing member 35 which is dimensioned and configured to substantially seal the aperture formed by inner edge 61 of the closure base and thus seal the container.
  • Sealing member 35 generally includes a relatively thin membrane 62 and a gripping member 63 .
  • Membrane 62 has an outer diameter that is slightly less than the inner diameter of the aperture formed by inner edge 61 .
  • the term “membrane” is also intended to cover any relatively inflexible structure that is dimensioned to substantially cover the aperture formed by inner edge 61 .
  • Sealing member 35 also includes a peripheral lip 67 extending along the outer perimeter of membrane 62 , as shown in FIG. 4 .
  • Peripheral lip 67 includes an engagement groove 70 , which is configured to cooperate with connection member 36 as is discussed in greater detail below.
  • gripping member 63 in the form of a pull-ring 71 and is of generally conventional design.
  • pull-ring 71 is connected to membrane 62 by post 72 and forms a generally circular loop. The loop is dimensioned to receive the finger of a consumer thus allowing the consumer to grip and pull the pull-ring in order to remove sealing member 35 from closure base 34 .
  • sealing member 35 is formed of polypropylene, high-density polyethylene (HDPE), low-density polyethylene (LDPE), or other suitable material that provides the sealing member with suitable structural integrity.
  • HDPE high-density polyethylene
  • LDPE low-density polyethylene
  • the sealing member is monolithically formed with the closure base.
  • Connection member 36 interconnects the closure base 34 and sealing member 35 .
  • the connection member includes a continuous ring 74 that has an engagement groove 75 which cooperates with engagement groove 70 of sealing member 35 to provide a strong mechanical joint between the sealing member and the connection member, as shown in FIG. 4 .
  • connection member 36 also includes a plurality of radially extending protrusions 76 that extend outwardly from continuous ring 74 .
  • twelve protrusions are circumferentially spaced about continuous ring 74 .
  • the number of protrusions as well as spacing of the protrusions may vary in accordance with the present invention.
  • a complementary groove and shoulder arrangement similar to that between sealing member 35 and connection member 36 may be used to interconnect connection member 36 as closure base 34 .
  • a radially extending protrusion/recess configuration may be utilized to interconnect sealing member 35 and connection member 36 .
  • each protrusion 76 has a trapezoidal cross-section that is complementary to the shape of a corresponding recess 79 formed on annular bottom 58 .
  • protrusion 76 forms a key that is received within the keyway that is formed by recess 79 and thus provides a strong mechanical joint which prevents sealing member 35 from moving axially with respect to annular bottom 58 of closure base 34 .
  • the cross-sectional profile of the protrusions and recesses may vary in accordance with present invention.
  • the protrusions may include a semicircular cross-section, a triangular cross-section, or other suitable profile to provide an intimate mechanical connection between the connection member and the closure base.
  • Such cross-sectional configurations allow ready release of the interengaging structures but renders reassembly extremely difficult.
  • connection member 36 is formed of a tearable material such as a low-density polyethylene (LDPE) based material or a thermoplastic elastomer (TPE).
  • LDPE low-density polyethylene
  • TPE thermoplastic elastomer
  • Connection member 36 is formed of a material that is more pliable, that is, supple enough to bend freely or repeatedly without breaking, and that would more readily yield than the material forming at least one of the sealing member and the closure base.
  • closures used in hot-fill applications are often formed of polypropylene, a relatively rigid material that possesses significant structural integrity.
  • polypropylene is unsuitable for forming structures having a continuous tear line that is intended to be torn by a consumer.
  • the closure base and/or the sealing member may be formed of polypropylene while the connection member may be formed of a low-density polyethylene (LDPE) or a thermoplastic elastomer. This two material configuration allows the use of a pull-ring in a hot-fill application.
  • LDPE low-density polyethylene
  • Connection member 36 connects and joins membrane 62 of sealing member 35 to annular ring 58 of closure base 34 in such a way that the connection member does not integrally bond to at least one of the sealing member and the closure base, namely, the component is formed of the different material.
  • connection member 36 is discrete from closure base 34 and sealing member 35 .
  • connection member may be integrally molded of the same material and at the same time as either one of the closure base or the sealing member provided that a mechanical joint is formed that can be readily separated by a consumer.
  • the tamper-evidencing closure of the present invention is manufactured utilizing multi-shot or over-molding injection molding technologies.
  • the embodiment of FIGS. 1-6 is produced by shuttle molding by molding connection member 36 in a first injected shot utilizing a first mold core and/or cavity followed by in situ molding of closure base 34 and sealing member 35 in a subsequent shot utilizing a second mold core and/or cavity.
  • a very precise and intimate joining of the complementary mechanical interlocking structures between connection member 36 and closure base 34 , as well as between the connection member and sealing member 35 can be achieved.
  • Such an intimate joint configuration of a closure could not be achieved or would be very difficult to accomplish by conventional closure manufacturing methods.
  • connection member 36 will tear away from annular bottom 58 of closure base 34 .
  • protrusions 76 will tear away and/or otherwise disengage from recesses 79 .
  • connection member 36 and annular bottom 58 are separated by physical separation. Once separated, it is virtually impossible to reassemble or otherwise engage connection member 36 to closure base from which it was separated due to the design of the interengaging structures, that is, the design of protrusions 76 and recesses 79 .
  • closure system 30 a is similar to closure system 30 described above but includes a modified sealing member 35 a and a modified connection member 36 a as shown in FIGS. 7-13 .
  • Like reference numerals have been used to describe like components of closure system 30 a and closure system 30 .
  • connection member 36 a includes a center 84 and a spoke 85 interconnecting center 84 and continuous ring 74 a , as most clearly seen in FIGS. 8 and 10 .
  • the spoke configuration of connection member 36 a allows central positioning of a injection molding hot tip. Although only one spoke 85 is illustrated, one should appreciate that one, two, three or more spokes may be utilized to provide a path of material from the center to the continuous ring.
  • recesses 79 a are in the form of channels which extend outwardly along a bottom surface of annular bottom 58 a and upwardly, along an outer surface of inner skirt 56 a , and to an annular seal 87 that is monolithically formed with connecting member 36 a .
  • the annular seal extends up and around the upper portion of container neck 57 a and provides a significant sealing surface.
  • annular seal 87 is provided with one or more sealing beads 88 to provide improved sealing performance.
  • membrane 62 a of sealing member 35 a has a dome shape.
  • the dome configuration of the membrane allows greater sealing force under vacuum and/or hot-fill applications.
  • the vacuum created within container 31 a during the application process may tend to draw membrane 62 a downward.
  • the plug seal configuration of the present invention such downward force and/or motion may cause the outer perimeter membrane 62 a to slightly expand whereby a lower portion of inner skirt 56 a will exert a force against the insider surface of container neck 57 a and thus improve sealing performance.
  • closure system 30 a is used in substantially the same manner as closure system 30 discussed above.
  • closure system 30 b is similar to closure systems 30 and 30 a described above but includes an integral sealing and connection member generally designated by the numeral 91 , hereinafter integral member 91 , as shown in FIGS. 14 and 15 .
  • integral member 91 an integral sealing and connection member generally designated by the numeral 91 , hereinafter integral member 91 , as shown in FIGS. 14 and 15 .
  • Like reference numerals have been used to describe like components of closure system 30 b and closure systems 30 and 30 a.
  • integral member 91 incorporates membrane 62 b and gripping member 63 b as well as protrusions 76 b in a monolithically formed component.
  • integral member 91 is formed of polypropylene, high-density polyethylene (HDPE), low-density polyethylene (LDPE), or a thermoplastic elastomer (TPE).
  • HDPE high-density polyethylene
  • LDPE low-density polyethylene
  • TPE thermoplastic elastomer
  • Membrane 62 b of integral member 91 substantially seals the aperture formed by inner edge 61 b in a manner similar to that discussed above with reference to the embodiment shown in FIGS. 7-13 .
  • protrusions 76 b releasably and mechanically interconnect membrane 62 b and closure base 34 b in a manner similar to that discussed above.
  • the monolithic configuration of integral member 91 may simplify the design and production of the closure system, however, one will appreciate that the integral member must have sufficient structural integrity that protrusions 76 b will yield and separate from the corresponding structure of closure base 34 b before gripping member 63 b fails and is torn away from membrane 62 b.
  • integral member may take other forms and configurations in accordance with the present invention.
  • an integral member may be formed by monolithically forming sealing member 35 and connection member 36 as a single component that is releasably connected to closure base 34 .
  • an integral member may be formed by monolithically forming connection member 36 and closure base 34 as a single component in which case sealing member 35 is releasably connected to the integral member.
  • closure system 30 b is used in substantially the same manner as closure systems 30 and 30 a discussed above.
  • closure system 30 c is similar to closure systems 30 , 30 a and 30 b described above but includes a retainer 49 c used in combination with a monolithically-formed closure base, sealing member and connecting member, hereinafter fitment member 95 , as shown in FIG. 16 .
  • a retainer 49 c used in combination with a monolithically-formed closure base, sealing member and connecting member, hereinafter fitment member 95 , as shown in FIG. 16 .
  • Like reference numerals have been used to describe like components of closure system 30 c and closure systems 30 , 30 a and 30 b.
  • fitment member 95 includes a connecting member in the form of a circular line of weakness 96 that interconnects sealing member 35 c and closure base 34 c in a manner similar to a conventional fitment of the type disclosed by U.S. Pat. No. 6,464,096 to Adams et al, the entire content of which is incorporated herein by this reference.
  • the circular line of weakness is formed by a downward facing groove, however, one will appreciate that an upward facing groove may be utilized.
  • fitment member 95 is formed of low-density polyethylene (LDPE), however, one should appreciate that other suitable materials can be used to form the fitment member in accordance with the present invention.
  • LDPE low-density polyethylene
  • retainer 49 c includes gussets 51 c that are modified in that the gussets include an upper spiked edge 99 extending above the top edge of retaining band 50 c .
  • the spiked configuration of gussets 51 c not only allows the gussets to cooperate with corresponding structure on the container neck spaced radially inward from retaining band 50 c but also allows the gussets to cooperate with corresponding structure on the container neck that is axially space above retaining band 50 c.
  • fitment member 95 is applied to a container such that retainer 49 c engages the container in a snap-on manner similar to that of retainer 49 discussed above.
  • closure system 30 c is used in substantially the same manner as closure systems 30 , 30 a and 30 b discussed above.
  • closure system 30 d is similar to those described above but includes a modified closure base 34 d .
  • Like reference numerals have been used to describe like components of closure system 30 d and those of the closure systems described above.
  • closure system 34 d and sealing member 35 d are monolithically formed and are interconnected by a line of weakness 96 d in a manner similar to that discussed above.
  • closure system 30 d may be utilized on any one of the closure systems described above.
  • closure base 34 d includes a retainer in the form of a plurality of retaining flaps 99 which extend radially inwardly and upwardly from a lower portion 48 d of outer skirt 40 d thus forming a J-shaped structure that is dimensioned and configured to cooperate with a locking surface of the container (e.g., locking surface 52 a shown in FIG. 10 and locking surface 52 d shown in FIG. 21 ).
  • the closure base includes eight retaining flaps, however, one will appreciate that the number of retaining flaps may vary.
  • each retaining flap 99 includes an oblique, inwardly directed wing 100 that is dimensioned to closely conform to neck finish 32 d of container 31 d and engage locking surface 52 d of the container neck finish 32 d when the closure base is mounted on the container.
  • the retaining flaps are relatively flexible, the retaining flaps are hinged with respect to lower portion 48 d , whereby wings 100 initially extend substantially horizontally (see FIG. 19 ) and upon application to the container, the lower portion of flaps 99 extend substantially vertically (see FIG. 24 ).
  • wing 100 extends obliquely with respect to the lower portion of retaining flap 99 , preferably in the range of approximately 120° to 150°, and more preferably approximately 135°.
  • Wing 100 also includes a curved inner edge 102 and a lower concave face 103 .
  • the concave face is dimensioned to closely approximate the outer diameter of the container neck finish below the locking surface (see, e.g., locking surface 52 e in FIG. 21 ).
  • the concave configuration of the face allows the majority of the inner edge to abut against locking surface instead of tangential contact if the face were flat.
  • the concave configuration increases the amount of contact between inner edge 102 and locking surface 52 e when closure base 34 d is applied to the container 31 d as compared to prior restraining devices. Furthermore, the dogleg configuration of flap 99 (as shown in FIG. 24 ) ensures that an inner edge 102 of wing 100 remains positioned below locking surface 52 d.
  • the closure base is also provided with a plurality of circumferentially spaced biasing ribs 104 that extend radially inward from an inner surface of outer skirt 40 d .
  • the biasing ribs 104 are dimensioned and configured to abut against and bias retaining flaps 99 inwardly such that inner edge 102 of wing 100 remains below locking surface 52 d .
  • the provision of biasing ribs 104 may also minimize the amount of material necessary to form the closure base. For example, since the biasing ribs 104 abut against and thus bias wings 100 inwardly, the wall thickness of flaps 99 and wings 100 need not be sufficiently thick to provide a rigid member.
  • Each retaining flap 99 includes a gusset 51 d that is dimensioned to cooperate with anti-rotation structure 105 located on neck finish 32 d of container 31 d .
  • anti-rotation structure 105 includes a plurality of teeth 106 circumferentially spaced about the neck finish of container 31 d below the locking surface 52 d . As the effective inner diameter of gussets 51 d is less than the effective outer diameter of teeth 106 , gussets 51 d will abut against a respective tooth 106 and thus prevent rotation of closure base 34 d with respect to the neck finish of container 31 d.
  • the anti-rotation configuration not only facilitates removal of reclosure cap 45 d from closure base 34 d , the anti-rotation configuration also prevents removal of the closure base 34 d from the container 31 d .
  • removal of a snap-on closure may be facilitated by twisting or rotating the snap-on closure relative to the container while axially pulling the snap-on closure away from the container.
  • preventing rotation of the closure base will further prevent removal of the closure base from the container.
  • Closure base 34 d is also provided with a plurality of vertical lines of weakness similar to those described above.
  • lines of weakness 53 d extend upwardly along lower skirt portion 48 d .
  • the lines of weakness extend substantially vertically, however, one will appreciate that the lines of weakness may extend obliquely with respect to the bottom of lower skirt portion.
  • lines of weakness 53 d are provided on an interior surface of lower skirt portion 48 d that extends below retaining flaps 99 , however, the lines of weakness may be provided on an external surface of the lower skirt portion.
  • the lines of weakness may be symmetrically or asymmetrically around the outer skirt.
  • the wall thickness of lower skirt portion 48 d is significantly thinner than outer skirt 40 d , and the wall thickness of vertical lines of weakness 53 d is thinner still.
  • the force required to split lower skirt portion 48 d is minimal whereby substantially any attempt to pry closure base 34 d from the container neck 32 d will cause lower portion 34 d to split along one or more vertical lines of weakness 53 d thus providing visible evidence that the contends of the container may have been accessed and/or tampered with.
  • the wall thickness of the vertical lines of weakness and the wall thickness of the lower skirt portion may vary in accordance with the present invention.
  • the number of vertical lines of weakness, and the location may also vary.
  • annular top 39 d extends inwardly from the top of outer skirt 40 d , as shown in FIG. 19 , and allows for a lower-profile reclosure cap configuration.
  • the plug 46 d of reclosure cap 45 d may be dimensioned to provide an interference fit with inner skirt 56 d .
  • Such a configuration thus provides a primary sealing surface, once sealing member 35 is removed, between reclosure cap 45 d and closure base 34 d that is closer to the container aperture.
  • closure system 30 d is used in substantially the same manner as the closure systems discussed above.
  • closure system 30 e is similar in some aspects to those described above but includes a low-profile closure base that is designed for use with containers having a relatively wide-profile opening.
  • Like reference numerals have been used to describe like components of closure system 30 e and those of the closure systems described above.
  • Closure system 30 e is dimensioned and configured such that it may be used with containers having a relatively low profile and a relatively large container opening.
  • closure system 30 e may be used in combination with cosmetics containers, however, one will appreciate that closure system 30 e may be used in combination with other types of containers including, but not limited to, beverage containers.
  • closure system 30 e includes a closure base 34 e that is adapted for mounting on the container, a sealing member 35 e for sealing the container opening and thus the contents of the container, and a connection member 36 e for releasably connecting the sealing member 35 e to the closure base 34 e.
  • closure base 34 e includes an annular top 39 e and an outer skirt 40 e depending downwardly from an outer periphery of annular top 39 .
  • a lower portion of skirt 40 e includes retaining structure in the form of a retaining bead 109 which securely mounts closure base 34 e on a container in a well known manner.
  • closure system 30 e also includes a sealing member 35 e which is dimensioned and configured to substantially seal the aperture formed by inner edge 61 e of the closure base and thus seal the container.
  • Sealing member 35 e generally includes a relatively thin membrane 62 e and a gripping member 63 e .
  • Membrane 62 e has an outer diameter that is slightly less than the inner diameter of the aperture formed by inner edge 61 e.
  • gripping member 63 e in the form of a pull-ring 71 e that is connected to membrane 62 e by post 72 e and forms a generally circular loop.
  • the loop is dimensioned to receive the finger of a consumer thus allowing the consumer to grip and pull the pull-ring in order to remove sealing member 35 e from closure base 34 e.
  • Connection member 36 e connects and joins membrane 62 e of sealing member 35 e to annular ring 58 e of closure base 34 e in such a way that the connection member sealingly bonds but does not integrally bond to at least one of the sealing member and the closure base, namely, the component is formed of the different material.
  • connection member 36 e includes a center 84 e and a plurality of spokes 85 e interconnecting center 84 e and a continuous ring 74 e , as most clearly seen in FIG. 27 .
  • the spoke configuration of connection member 36 e allows central positioning of a injection molding hot tip. Although four spokes 85 e are illustrated, one should appreciate that one, two, three or more spokes may be utilized to provide a path of material from the center to the continuous ring.
  • Frangible bridges 110 may be provided, however, that extend between closure base 34 e and sealing member 35 e .
  • the frangible bridges may serve to provide a path for material to flow during the molding process from the sealing member to the closure base (and/or vise versa) and/or to position sealing member with respect to the closure base.
  • closure system 34 e is manufactured utilizing multi-shot or over-molding injection molding technologies.
  • closure base 34 e and sealing member 35 e are formed with a first injected shot utilizing a first mold core and/or cavity followed by in situ molding of connecting member 36 e in a subsequent shot utilizing a second mold core and/or cavity.
  • first mold core and/or cavity followed by in situ molding of connecting member 36 e in a subsequent shot utilizing a second mold core and/or cavity.
  • closure system 30 e is used in substantially the same manner as those discussed above.
  • closure system 30 f in some aspects, is similar to those described above. Like reference numerals have been used to describe like components of closure system 30 f and those of the closure systems described above.
  • closure system 30 f includes a closure base 34 f that is adapted for mounting on the container, a sealing member 35 f for sealing the opening and thus the contents of the container, and a connection member 36 f for releasably connecting the sealing member 35 f to the closure base 34 f.
  • closure base 34 f is in the form of an annular ring 113 that is applied to a container about the opening thereof.
  • the annular ring may be adhered, heat sealed, or otherwise affixed to the container by suitable well-known means.
  • closure system 30 f also includes a sealing member 35 f which is dimensioned and configured to substantially seal the aperture formed between inner edge 61 f of the closure base and the outer periphery of membrane 62 f of the sealing member, and thusly seal the container.
  • Sealing member 35 f generally includes a relatively thin membrane 62 f and a gripping member 63 f .
  • Membrane 62 f has an outer diameter that is slightly less than the inner diameter of the aperture formed by inner edge 61 f.
  • gripping member 63 f in the form of a pull tab 114 that is connected to membrane 62 f adjacent the perimeter thereof.
  • the tab is dimensioned to allow a consumer to grip and pull the pull tab in order to remove sealing member 35 f from closure base 34 f.
  • Connection member 36 f connects and joins membrane 62 f of sealing member 35 f to annular ring 58 f of closure base 34 f in such a way that the connection member sealingly bonds but does not integrally bond to at least one of the sealing member and the closure base, namely, the connection member is formed of the different material.
  • connection member 36 f includes a continuous ring 74 f which extend circumferentially around the sealing member and fills the void between the sealing member and the closure base 34 f .
  • the connection member 36 also includes an upper flange 116 and a lower flange 117 which provide the connection member with a substantially I-shaped cross-section.
  • the I-shaped configuration enhances the structural integrity of the mechanical joint by providing opposing channels that receive and thus engage the closure base and the sealing member, respectively.
  • the upper and lower flanges do not extend completely around the sealing member but instead terminate on either side of the pull tab.
  • Such a discontinuous-configuration facilitates removal of the sealing member. Namely, the amount of force required to initiate separation of the portion of sealing member 35 f immediately adjacent the pull tab from connection member 36 f , and/or connection member 36 f from closure base 34 f , is significantly less than the amount of force which would be required if this portion of the connection member were channel or I-shaped.
  • the flanges may extend continuously 360° around the sealing member.
  • Connection member 36 f also includes a center 84 f and a plurality of spokes 85 f interconnecting center 84 f and a continuous ring 74 f , as most clearly seen in FIG. 32 .
  • the spoke configuration of connection member 36 f allows central positioning of a injection molding hot tip in the same manner as discussed above.
  • closure system 34 f is manufactured utilizing multi-shot or over-molding injection molding technologies.
  • closure base 34 f and sealing member 35 f are formed with a first injected shot utilizing a first mold core and/or cavity followed by in situ molding of connecting member 36 f in a subsequent shot utilizing a second mold core and/or cavity.
  • frangible bridges may be provided that extend between closure base 34 f and sealing member 35 f in the same manner discussed above.
  • closure system 30 f is used in substantially the same manner as those discussed above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Closures For Containers (AREA)
  • Cartons (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
US10/854,925 2003-05-27 2004-05-26 Method of joining separable components and container closure system formed by the same Abandoned US20050092750A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US10/854,925 US20050092750A1 (en) 2003-05-27 2004-05-26 Method of joining separable components and container closure system formed by the same
US11/610,217 US20070095835A1 (en) 2003-05-27 2006-12-13 Design and manufacture of removable membrane sealing components for consumer packaging
US11/929,009 US20080272084A1 (en) 2003-05-27 2007-10-30 Design and manufacture of removable membrane sealing components for consumer packaging
US11/929,160 US7832579B2 (en) 2003-05-27 2007-10-30 Manufacture of removable manufacture sealing components for consumer packaging
US12/704,650 US20100140268A1 (en) 2003-05-27 2010-02-12 Dispensing closure with removable membrane
US12/892,218 US20110011821A1 (en) 2003-05-27 2010-09-28 Design and manufacture of removable membrane sealing components for consumer packaging
US12/965,160 US20110100948A1 (en) 2003-05-27 2010-12-10 Design and manufacture of removable membrane sealing components for consumer packaging

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47384703P 2003-05-27 2003-05-27
US10/854,925 US20050092750A1 (en) 2003-05-27 2004-05-26 Method of joining separable components and container closure system formed by the same

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/610,217 Continuation-In-Part US20070095835A1 (en) 2003-05-27 2006-12-13 Design and manufacture of removable membrane sealing components for consumer packaging

Publications (1)

Publication Number Publication Date
US20050092750A1 true US20050092750A1 (en) 2005-05-05

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US10/854,925 Abandoned US20050092750A1 (en) 2003-05-27 2004-05-26 Method of joining separable components and container closure system formed by the same
US11/610,217 Abandoned US20070095835A1 (en) 2003-05-27 2006-12-13 Design and manufacture of removable membrane sealing components for consumer packaging
US11/929,009 Abandoned US20080272084A1 (en) 2003-05-27 2007-10-30 Design and manufacture of removable membrane sealing components for consumer packaging
US11/929,160 Active 2024-11-19 US7832579B2 (en) 2003-05-27 2007-10-30 Manufacture of removable manufacture sealing components for consumer packaging
US12/892,218 Abandoned US20110011821A1 (en) 2003-05-27 2010-09-28 Design and manufacture of removable membrane sealing components for consumer packaging
US12/965,160 Abandoned US20110100948A1 (en) 2003-05-27 2010-12-10 Design and manufacture of removable membrane sealing components for consumer packaging

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US11/610,217 Abandoned US20070095835A1 (en) 2003-05-27 2006-12-13 Design and manufacture of removable membrane sealing components for consumer packaging
US11/929,009 Abandoned US20080272084A1 (en) 2003-05-27 2007-10-30 Design and manufacture of removable membrane sealing components for consumer packaging
US11/929,160 Active 2024-11-19 US7832579B2 (en) 2003-05-27 2007-10-30 Manufacture of removable manufacture sealing components for consumer packaging
US12/892,218 Abandoned US20110011821A1 (en) 2003-05-27 2010-09-28 Design and manufacture of removable membrane sealing components for consumer packaging
US12/965,160 Abandoned US20110100948A1 (en) 2003-05-27 2010-12-10 Design and manufacture of removable membrane sealing components for consumer packaging

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AU (1) AU2004243320B2 (zh)
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CN1816480A (zh) 2006-08-09
US20080179276A1 (en) 2008-07-31
WO2004106172A2 (en) 2004-12-09
US20110011821A1 (en) 2011-01-20
WO2004106172A3 (en) 2005-02-10
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CA2527007C (en) 2009-12-01
NZ568141A (en) 2009-09-25
US20080272084A1 (en) 2008-11-06
CN1816480B (zh) 2010-06-16
AU2004243320A1 (en) 2004-12-09
MXPA05012719A (es) 2006-02-22
US7832579B2 (en) 2010-11-16
CA2527007A1 (en) 2004-12-09
US20070095835A1 (en) 2007-05-03
US20110100948A1 (en) 2011-05-05
ZA200509843B (en) 2007-05-30
AU2004243320B2 (en) 2010-03-25

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