EP1048583A1 - Verschluss mit Dichtscheibe für Behälter mit verschiedenen Hälsen - Google Patents

Verschluss mit Dichtscheibe für Behälter mit verschiedenen Hälsen Download PDF

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Publication number
EP1048583A1
EP1048583A1 EP00303252A EP00303252A EP1048583A1 EP 1048583 A1 EP1048583 A1 EP 1048583A1 EP 00303252 A EP00303252 A EP 00303252A EP 00303252 A EP00303252 A EP 00303252A EP 1048583 A1 EP1048583 A1 EP 1048583A1
Authority
EP
European Patent Office
Prior art keywords
closure
finish
diameter
sealing
configurations
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.)
Withdrawn
Application number
EP00303252A
Other languages
English (en)
French (fr)
Inventor
James L. Gregory
Stephanie L. Kurtz-Rooney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BPrex Healthcare Brookville Inc
Original Assignee
Owens Illinois Closure Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Owens Illinois Closure Inc filed Critical Owens Illinois Closure Inc
Publication of EP1048583A1 publication Critical patent/EP1048583A1/de
Withdrawn legal-status Critical Current

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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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045—Discs
    • 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
    • B65D41/3428—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 the tamper element being integrally connected to the closure by means of bridges

Definitions

  • the present invention is directed to plastic container closures for beverage (e.g., soft drink) applications, and more particularly to a lined closure designed for use in combination with containers having identical thread diameter but differing finish configurations.
  • beverage e.g., soft drink
  • U.S. Patent 4,984,703 discloses a plastic closure that comprises a shell having a base wall with a peripheral skirt and an internal thread for securing the closure to a container, and a sealing liner compression molded in situ on the interior of the shell base wall.
  • U.S. Patent 5,451,360 discloses a method and apparatus for compression molding the liner in situ within the shell.
  • U.S. Patent 5,462,187 discloses a closure in which the liner periphery is contoured for sealing engagement with the axially oriented sealing surface and the outside or "E" diameter of the container finish.
  • a more specific object of the present invention is to provide a closure of the described character that can be utilized in combination with both returnable and single-use glass and PET containers of a given thread diameter and pitch.
  • a further object of the present invention is to provide a closure of the described character in which the liner may be either permanently secured to the closure shell or peelable therefrom.
  • Yet another object of the invention is to provide a method of manufacturing such a closure, and a container package that embodies such a closure.
  • a closure in accordance with the present invention includes a closure shell having a base wall and a peripheral skirt with internal means for affixing the closure to a container finish, and a resilient liner secured to the base wall of the closure for sealing engagement with the sealing surface of a container finish.
  • the liner has a first axially extending lip adjacent to the skirt with a radially inwardly facing concave first surface, a circumferentially continuous axially extending second lip spaced radially inwardly from the first lip and having a radially outwardly facing concave second surface, and a flat axially facing third surface extending between the first and second surfaces.
  • the axially facing third surface sealingly engages the axially facing sealing surface of the container finish, and preferably the first and second concave surfaces engage either the outside edge or the inside edge of the finish sealing surface, or both, depending upon the finish configuration of the container.
  • the present invention thus contemplates a closure for use in combination with containers having at least first and second configurations with identical thread diameters, a sealing surface and differing inside diameters and/or outside diameters at the finish sealing surface.
  • the closure includes a shell having a base wall with a peripheral skirt and an internal thread of a diameter to be received over the thread in either of the finish configurations.
  • a resilient liner is disposed on the base wall, and has a radially inwardly facing concave peripheral first surface adjacent to the skirt at a diameter for sealing engagement with the outside sealing surface diameter of at least one of the finish configurations, a circumferentially continuous axially extending lip spaced inwardly from the skirt and having a radially outwardly facing concave second surface at a diameter for engagement with the inside sealing surface diameter of at least one of the finish configurations, and a flat axially facing third surface extending between the concave surfaces for sealing engagement with the container sealing surface of both of the finish configurations.
  • the first and second concave surfaces have surface edges spaced from the third surface, and the radial spacing between such surface edges is in the range of 0.238 to 0.258 inches, preferably about 0.248 inches.
  • the first surface has a radius of curvature of about 0.040 ⁇ 0.007 inches
  • the second surface has a radius of curvature of about 0.035 ⁇ 0.007 inches.
  • the first surface has an axial edge spaced from the third surface by an axial dimension of about 0.036 ⁇ 0.007 inches
  • the second surface has an axial edge spaced from the third surface by an axial dimension of 0.029 ⁇ 0.005 inches.
  • a package comprises a container having a finish of one of first and second finish configurations with identical thread diameters, and a closure having a shell with a base wall and a peripheral skirt with internal thread at a diameter to be received over the finish external thread in either of the finish configurations.
  • a resilient liner is disposed on the base wall, and has a radially inwardly facing concave peripheral first surface adjacent to the skirt at a diameter for sealing engagement with the sealing surface outside diameter of at least one of the finish configurations, a circumferentially continuous axially extending lip spaced radially inwardly from the skirt and having a radially outwardly facing concave second surface at a diameter for engagement with the sealing surface inside diameter of at least one of the finish configurations, and a flat axially facing third surface extending between the concave surfaces for axial sealing engagement with the container sealing surface of both finish configurations.
  • a method of making a closure in accordance with a further aspect of the present invention contemplates either compression molding the liner in situ on the base wall of the closure shell, or compression or injection molding the liner separately and securing the same to the shell base wall.
  • the liner profile can be employed as a peelable liner by utilizing the inner lip or rib for grasping and removing the liner form the closure shell.
  • FIGS. 1-2 illustrate a package 10 that comprises a glass container 12 and a plastic closure 14.
  • Container 12 has a finish 16 of industry standard so-called MCA-2 configuration.
  • Container finish 16 has an axially facing generally flat sealing surface 18 with an inside diameter defined by the bore diameter of finish 16 and an outside diameter that defines the so-called "E" diameter of the container finish.
  • Finish 16 also has an external thread 20 for securing closure 14 on the container finish.
  • Thread 20 has a specified external diameter or "T" dimension, such as 28 mm.
  • Closure 14 includes a one-piece integrally molded plastic shell 22 having a base wall 24 and a peripheral skirt 26. An internal thread 28 is formed on skirt 26 for engaging external thread 20 on container finish 16.
  • a tamper-indicating band 30 is secured by frangible means to the lower edge of skirt 26, and a stop flange 32 extends axially inwardly and upwardly from the lower edge of band 28 for engaging the bead 34 on finish 16.
  • Flange 32 thus resists removal of closure 14 from container 12 absent fracture of the frangible means, by means of which separation of band 30 from skin 26 indicates that the package has been opened.
  • a resilient liner 36 is internally secured to closure base wall 24.
  • base wall 24 preferably, but not necessarily, has a peripheral depression 38 that receives the peripheral portion of liner 36.
  • the peripheral portion of liner 36 has a first axially extending lip 40 adjacent to and engaging closure skirt 26, with a radially inwardly facing concave first surface 42.
  • the axial edge of lip 40 remote from base wall 24 has a conical surface 44 that widens radially outwardly axially away from base wall 24, and extends to the enlarged shoulder 46 of skirt 26.
  • a second circumferentially continuous axially extending lip 48 extends away from base wall 24 in general axial alignment with the radially inner ledge of base wall pocket 38.
  • Lip 48 is thus concentrically spaced radially inwardly from lip 40, and has a radially outwardly facing concave second surface 50 opposed to concave surface 42 of lip 40.
  • a flat axially facing third surface 52 extends between and interconnects surfaces 42, 50 at the points at which these concave surfaces are horizontal.
  • surface 52 is tangential to and smoothly interconnects surfaces 42, 50.
  • the central portion of liner 36 on base wall 24 - i.e., radially inwardly of lip 48 - may be of any suitable configuration. As best seen in FIG. 4, the axial edge of lip 48 is convex, and the radially inwardly facing surface of lip 48 is concave.
  • surface 42 of lip 40 is also engaged and compressed by the opposing outer diameter edge of the finish sealing surface.
  • sealing engagement is made with sealing surface 18 and the outside diameter of sealing surface 18.
  • the phantom lines in FIG. 2 illustrate tolerance limits on the standard finish configuration.
  • FIG. 5 illustrates closure 14 used in conjunction with a 28 mm glass container 12a having an industry standard MCA-1 finish configuration.
  • the E-wall of the container finish will contact lip 40 during further compression and at extreme tolerance conditions.
  • FIGS. 6 and 7 illustrate closure 14 in conjunction with 28 mm PET containers 12b, 12c of industry standard PCO and BPF finish configurations respectively.
  • Use in conjunction with a glass container of industry standard MCA-3 finish configuration would be similar to FIG. 2 in the sealing surface area.
  • liner 36 makes sealing contact with the container finish at axially oriented liner surface 52, and preferably either concave surface 42 or concave surface 50, or both.
  • a single closure 14 is usable in conjunction with glass container 12, 12a having standard MCA-1, MCA-2 and MCA-3 finish configurations, and with PET containers 12b, 12c having standard PCO and BFP finish configurations.
  • the axial edges of surfaces 42, 50 - i.e., the edges spaced from surface 52 and base wall 24, have a radial separation in the range of 0.238 to 0.258 inches, preferably about 0.248 inches (i.e. 0.248 ⁇ 0.010 inches).
  • Surface 42 has a radius of curvature in the range of 0.033 to 0.047 inches, preferably about 0.040 inches (i.e., 0.040 ⁇ 0.007 inches), and surface 50 has a radius of curvature in the range of 0.028 to 0.042 inches, preferably about 0.035 inches (i.e., 0.035 ⁇ 0.007 inches).
  • the axial dimension of surface 48 from surface 52 is in the range of 0.029 to 0.43 inches, preferably about 0.036 inches (i.e., 0.036 ⁇ 0.007 inches), and the axial dimension of surface 50 from surface 52 is in the range of 0.024 to 0.034 inches, preferably 0.029 inches (i.e., 0.029 ⁇ 0.005 inches).
  • these dimensions are illustrated in conjunction with various finish configurations having a 28 mm thread diameter, which is particularly prevalent in the soft drink market, these dimensions will also apply in conjunction with containers having the same finish configurations but of differing thread diameter.
  • the diameter at the axial edge of surface 50 in the exemplary 28 mm closure is in the range of 0.713 to 0.723 inches, preferably 0.718 inches (i.e., 0.718 ⁇ 0.005 inches), and the diameter at the axial edge of surface 42 is in the range of 0.961 to 0.971 inches, preferably 0.966 inches (i.e., 0.966 ⁇ 0.005 inches).
  • the circle of tangency between surfaces 42, 52 has a diameter in the range of 0.907 to 0.921 inches, preferably about 0.914 inches (i.e., 0.914 ⁇ 0.007 inches).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP00303252A 1999-04-27 2000-04-18 Verschluss mit Dichtscheibe für Behälter mit verschiedenen Hälsen Withdrawn EP1048583A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30032399A 1999-04-27 1999-04-27
US300323 1999-04-27

Publications (1)

Publication Number Publication Date
EP1048583A1 true EP1048583A1 (de) 2000-11-02

Family

ID=23158628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00303252A Withdrawn EP1048583A1 (de) 1999-04-27 2000-04-18 Verschluss mit Dichtscheibe für Behälter mit verschiedenen Hälsen

Country Status (9)

Country Link
EP (1) EP1048583A1 (de)
JP (1) JP2000355343A (de)
CN (1) CN1271684A (de)
AU (1) AU3015800A (de)
BR (1) BR0002127A (de)
CA (1) CA2305227A1 (de)
ID (1) ID27077A (de)
MX (1) MXPA00003987A (de)
ZA (1) ZA200001956B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114423688A (zh) * 2019-09-25 2022-04-29 日本山村硝子株式会社 盖

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2725204T3 (es) 2010-10-14 2019-09-20 Medivators Inc Tapa universal
CN102795392B (zh) * 2012-09-06 2014-10-01 湖南乐福地医药包材科技有限公司 饮料包装
CN102941963A (zh) * 2012-11-22 2013-02-27 中山环亚塑料包装有限公司 一种高质密封型锁瓶盖
CN204056499U (zh) * 2014-07-03 2014-12-31 可口可乐公司 一种改进的pco瓶的瓶口及具有该瓶口的瓶

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721221A (en) * 1987-01-20 1988-01-26 Owens-Illinois Closure Inc. Molded plastic closure with sealing liner
US4984703A (en) 1989-10-03 1991-01-15 Owens-Illinois Closure Inc. Plastic closure with compression molded sealing liner
US5297688A (en) * 1992-03-03 1994-03-29 Creative Packaging Corp. Closure for sealing a container rim
EP0669261A1 (de) * 1994-02-23 1995-08-30 Japan Crown Cork Co. Ltd. Behälterverschluss mit einer Kunststoffkappe und einer Kunststoffabdichtung
US5451360A (en) 1993-10-14 1995-09-19 Owens-Illinois Closure Inc. Method and apparatus for compression molding closure liners
US5462187A (en) 1992-07-28 1995-10-31 Owens-Illinois Closure Inc. Plastic beverage closure
EP0931728A1 (de) * 1998-01-27 1999-07-28 Rical Schraubkappe zum Schliessen eines Behälterhalses

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4721221A (en) * 1987-01-20 1988-01-26 Owens-Illinois Closure Inc. Molded plastic closure with sealing liner
US4984703A (en) 1989-10-03 1991-01-15 Owens-Illinois Closure Inc. Plastic closure with compression molded sealing liner
US5297688A (en) * 1992-03-03 1994-03-29 Creative Packaging Corp. Closure for sealing a container rim
US5462187A (en) 1992-07-28 1995-10-31 Owens-Illinois Closure Inc. Plastic beverage closure
US5451360A (en) 1993-10-14 1995-09-19 Owens-Illinois Closure Inc. Method and apparatus for compression molding closure liners
EP0669261A1 (de) * 1994-02-23 1995-08-30 Japan Crown Cork Co. Ltd. Behälterverschluss mit einer Kunststoffkappe und einer Kunststoffabdichtung
EP0931728A1 (de) * 1998-01-27 1999-07-28 Rical Schraubkappe zum Schliessen eines Behälterhalses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114423688A (zh) * 2019-09-25 2022-04-29 日本山村硝子株式会社 盖
CN114423688B (zh) * 2019-09-25 2024-05-28 日本山村硝子株式会社 盖

Also Published As

Publication number Publication date
MXPA00003987A (es) 2002-03-08
CN1271684A (zh) 2000-11-01
CA2305227A1 (en) 2000-10-27
JP2000355343A (ja) 2000-12-26
ZA200001956B (en) 2000-11-01
AU3015800A (en) 2000-11-02
BR0002127A (pt) 2000-10-31
ID27077A (id) 2001-02-22

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