EP0460813A2 - Schraubkappe mit integriertem Dichtungsmittel - Google Patents

Schraubkappe mit integriertem Dichtungsmittel Download PDF

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Publication number
EP0460813A2
EP0460813A2 EP91304233A EP91304233A EP0460813A2 EP 0460813 A2 EP0460813 A2 EP 0460813A2 EP 91304233 A EP91304233 A EP 91304233A EP 91304233 A EP91304233 A EP 91304233A EP 0460813 A2 EP0460813 A2 EP 0460813A2
Authority
EP
European Patent Office
Prior art keywords
seal
neck
sealing ring
linerless closure
closure
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Withdrawn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
EP91304233A
Other languages
English (en)
French (fr)
Other versions
EP0460813A3 (en
Inventor
Ronald L. Kelly
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.)
Tredegar Molded Products Co
Original Assignee
Tredegar Molded Products Co
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 Tredegar Molded Products Co filed Critical Tredegar Molded Products Co
Publication of EP0460813A2 publication Critical patent/EP0460813A2/de
Publication of EP0460813A3 publication Critical patent/EP0460813A3/en
Withdrawn legal-status Critical Current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
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0428—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a collar, flange, rib or the like contacting the top rim or the top edges or the external surface of a container neck

Definitions

  • the present invention is primarily directed to a linerless closure for bottles or other types of generally liquid carrying containers.
  • a normal application would be in connection with a carbonated beverage bottle which could either be a glass bottle or a plastic bottle.
  • the present invention may be utilized in connection with other types of bottles and containers.
  • United States Patent No. 4,156,490 discloses an annular boss 12 which extends into a bottle mouth.
  • United States Patent No. 4,206,852 is directed to a linerless closure which includes an annular wall 30 which also extends within a bottle neck 36.
  • United States Patent No. 4,343,408 discloses a plastic closure which includes annular ridges 34 which engage the upper end of the neck portion 5 of a container 3.
  • the present invention provides a linerless closure for use on a bottle or other container which includes an upper end having a threaded neck.
  • the linerless closure includes a one-piece body, which is normally a plastic body.
  • the body has a cylindrical skirt or sidewall and a top.
  • the container neck and the body sidewall define mating threads.
  • An internal sealing ring is mounted below and adjacent the top of the body.
  • the sealing ring includes a continuous flexible central member. Upward threading movement between the container neck and the cap positions the flexible central member between the neck and the top of the cap to form a continuous seal.
  • the sealing ring also includes a downwardly extending side member.
  • the neck engages the side member to form a side seal and a corner seal in addition to the top seal formed by the flexible central member and the top.
  • a linerless closure is indicated in Fig. 1 by the reference number 10.
  • a plastic container 12 has an upper end 13 and a neck 14 which defines threads 15.
  • the plastic container 12 is commonly constructed of polyethylene terephthalate.
  • the container may be constructed of numerous materials, such as metal, glass or thermoplastics, including polypropylene, high density polyethylene, nylon or polyvinyl chloride.
  • a linerless closure 10' is shown positioned over a glass bottle 18 having an upper end 19 and a neck 20 which defines a continuous thread 21.
  • the linerless closures 10 and 10' are preferably constructed of a plastic material.
  • the plastic material is normally a thermoplastic such as polypropylene, polyethylene terephthalate, polyethylene, nylon, blends of such materials and other resins.
  • the linerless closure 10 has a one-piece body 24 including a cylindrical skirt or sidewall 25 and an integral top 26.
  • the sidewall 25 defines threads 27 on its interior. The threads 27 mate with the threaded neck 14 of the container 12.
  • an integral sealing ring 29 is mounted below and adjacent the top 26.
  • the sealing ring 29 includes a downwardly extending circular side member 30 and a flexible central member 31.
  • the circular side member 30 and the top 26 define a continuous circular receiving groove 32.
  • a depending circular "V" shaped ridge is defined on the inner surface of the top 26 of the body 24.
  • the glass bottle embodiment shown in Fig. 4 operates in a similar manner. As the linerless closure 10' is threaded onto the neck 20 of the glass bottle 18, the side sealing, corner sealing, and top sealing occur.
  • a linerless closure provides a good seal, particularly on carbonated beverage containers, and also a cost effective seal.
  • FIG. 5 Another embodiment of a linerless closure, according to the present invention, is indicated in Fig. 5 by the reference number 40.
  • the closure 40 includes a continuous angle groove 41.
  • the linerless closure 40 As the linerless closure 40 is moved to its sealed position, the upper end 13' of the container 12' engages the circular sealing ring 29'. Further movement urges the flexible central member 31' upwardly into and against the continuous angle groove 41. This forms a side seal, a corner seal and a top seal between the upper end 13' of the container 12' and the closure 40.
  • FIG. 50 another embodiment of a linerless closure, according to the present invention, is indicated by the reference number 50.
  • the closure 50 includes a cylindrical skirt or sidewall 25' and an integral top 26'.
  • the sidewall 25' defines threads 27' on its interior.
  • An integral sealing ring 29' is integrally mounted below the top 26'.
  • a plurality of reinforcing ribs 52 depend downwardly from the top 26' of the closure 50.
  • the ribs 52 are the shape of a cross, however, differing shapes and numbers of ribs may be used.
  • the ribs serve to retard deflection of the top 26' of the closure 50 when under pressure.
EP19910304233 1990-05-25 1991-05-10 Threaded closure with integral sealing means Withdrawn EP0460813A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52875990A 1990-05-25 1990-05-25
US528759 1995-09-15

Publications (2)

Publication Number Publication Date
EP0460813A2 true EP0460813A2 (de) 1991-12-11
EP0460813A3 EP0460813A3 (en) 1992-03-11

Family

ID=24107062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910304233 Withdrawn EP0460813A3 (en) 1990-05-25 1991-05-10 Threaded closure with integral sealing means

Country Status (3)

Country Link
EP (1) EP0460813A3 (de)
JP (1) JPH0664656A (de)
AU (1) AU7720491A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568288A1 (de) * 1992-04-27 1993-11-03 Owens-Illinois Closure Inc., Kunststoff-Verpackungsbehälter mit einer abdichtenden Verschlussvorrichtung ohne Innenbekleidung
EP0580369A1 (de) * 1992-07-21 1994-01-26 CarnaudMetalbox plc Einstückiger Kunststoffverschluss
DE4301306A1 (de) * 1993-01-20 1994-07-21 Alcoa Gmbh Verpackwerke Kunststoffverschluß
WO1997034814A1 (en) * 1996-03-19 1997-09-25 Lawson Mardon (Sutton) Limited Cap for a container
US5782369A (en) * 1993-08-19 1998-07-21 Tansey; Charles Martin Linerless closure for container
US8596477B2 (en) 2005-12-28 2013-12-03 Silgan White Cap LLC Retortable package with plastic closure cap

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425675C3 (de) * 1994-07-20 2001-02-15 Frank Schellenbach Verschlußkappe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012584A1 (en) * 1988-06-17 1989-12-28 M.K. Plastics Pty. Limited Linerless closure for carbonated beverage container

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012584A1 (en) * 1988-06-17 1989-12-28 M.K. Plastics Pty. Limited Linerless closure for carbonated beverage container

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568288A1 (de) * 1992-04-27 1993-11-03 Owens-Illinois Closure Inc., Kunststoff-Verpackungsbehälter mit einer abdichtenden Verschlussvorrichtung ohne Innenbekleidung
EP0580369A1 (de) * 1992-07-21 1994-01-26 CarnaudMetalbox plc Einstückiger Kunststoffverschluss
US5439126A (en) * 1992-07-21 1995-08-08 Carnaudmetalbox Plc One-piece plastics
DE4301306A1 (de) * 1993-01-20 1994-07-21 Alcoa Gmbh Verpackwerke Kunststoffverschluß
US5782369A (en) * 1993-08-19 1998-07-21 Tansey; Charles Martin Linerless closure for container
WO1997034814A1 (en) * 1996-03-19 1997-09-25 Lawson Mardon (Sutton) Limited Cap for a container
US8596477B2 (en) 2005-12-28 2013-12-03 Silgan White Cap LLC Retortable package with plastic closure cap

Also Published As

Publication number Publication date
JPH0664656A (ja) 1994-03-08
AU7720491A (en) 1991-11-28
EP0460813A3 (en) 1992-03-11

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