WO1985000154A1 - Wadded closure - Google Patents
Wadded closure Download PDFInfo
- Publication number
- WO1985000154A1 WO1985000154A1 PCT/AU1984/000114 AU8400114W WO8500154A1 WO 1985000154 A1 WO1985000154 A1 WO 1985000154A1 AU 8400114 W AU8400114 W AU 8400114W WO 8500154 A1 WO8500154 A1 WO 8500154A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- closure
- skirt
- protrusion
- top wall
- disc
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims 1
- 239000005038 ethylene vinyl acetate Substances 0.000 claims 1
- 210000003141 lower extremity Anatomy 0.000 claims 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims 1
- -1 polypropylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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
Definitions
- the present invention relates to a thermoplastic pre threaded screw closure for an externally threaded bottle neck and of the type utilising soft resilient circular liners or discs to provide a positive hermetic seal thus preventing liquid and gas loss in carbonated beverage containers.
- Such screw closures are generally known and used for beverages containing carbon dioxide.
- a sealing liner, held in place inside such closures between the intersection of the top and downward protruding sidewall is essential for provision of a positive seal after the closure has been first applied and after re-closing.
- This type of sealing medium also allows easy removal of the cap.
- any seal on the top alone of a container neck is not sufficiently positive as when pressure is developed inside the container the circular top wall of the closure lifts due to the flexibility of the thermoplastic material. In lifting, some top seal is lost, thus increasing the chance of pressure and liquid loss. It is therefore necessary to provide a seal either in the bottle bore or preferably on the top sealing surface to outside neck wall radius and down the vertical sidewall. In the case of glass finishes the outside wall tolerances are considerable and the neck top to sidewall intersection radius is subject to manufacturing variations thu making it difficult to design a closure to co-operate with this intersection and provide a side seal.
- the object of this invention is to ameliorate one or more of the problems of the prior art by providing a pre threaded screw clos ure with an adequate top and side seal.
- the invention discloses a thermoplastic closure adapted for use with a container having an externally threaded neck opening. Tne closure has a pre formed thread of at least one. radial turn which engages with the exter- nally threaded bottle neck.
- protrusion Inside the closure there is a downward extending protrusion from the top wall which forces a soft resilient circular liner against the top and side of the bottle neck or finish in order to provide a positive seal. It is important that the protrusion is from the top wall as the protrusion is. radially laterally flexible and will allow for inherent variation in the sealing liner thickness.
- FIG 1 being a part radial section through a closure in accordance with the present invention in sealing relationship with the bottle neck.
- Fig 2 depicts the same closure before application to a bottle.
- the closure is provided with an annular skirt (1) with an internally pre threaded section (2).
- the circular top wall (3) is integral with the skirt and has a protrusion (5) depending downwardly therefrom.
- Disc retaining means (4) are shown in the form of an annular flange extending inwardly from the skirt's inner wall.
- the thread (2) is in engagement with corresponding thread (7) on the bottle neck and the protrusion (5) has forced the periphery of the disc (6) down past the top of the bottle neck (8) onto the side surface and radius (9) of the bottle neck thus effecting a side seal.
- the downward extending protrusion defines a gap between itself and the closure skirt.
- the protrusio (5) is flexible and can therefore move radially thereby allowing for inherent variation in the thickness of disc (6).
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU16165/83A AU533823B3 (en) | 1983-06-23 | 1983-06-23 | Improvements to plastic closures for carbonated beverages |
AU16165/83 | 1983-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1985000154A1 true WO1985000154A1 (en) | 1985-01-17 |
Family
ID=3706078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1984/000114 WO1985000154A1 (en) | 1983-06-23 | 1984-06-22 | Wadded closure |
Country Status (4)
Country | Link |
---|---|
US (1) | US4629083A (en) |
EP (1) | EP0148880A4 (en) |
AU (1) | AU533823B3 (en) |
WO (1) | WO1985000154A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0179498A1 (en) * | 1984-10-19 | 1986-04-30 | Lynes Holding S.A. | Method of sealing a container |
US4911179A (en) * | 1987-05-28 | 1990-03-27 | Rolls-Royce Plc | Patient restraining device for use in physiotherapy |
EP0473529A1 (en) * | 1990-08-20 | 1992-03-04 | Ultimos Desarrollos, S.A. | Improved closure cap for bottles |
WO1994016962A1 (en) * | 1993-01-20 | 1994-08-04 | Alcoa Deutschland Gmbh Verpackungswerke | Plastic closure |
EP0688723A1 (en) * | 1994-06-22 | 1995-12-27 | Japan Crown Cork Co. Ltd. | Plastic container closure and method of producing the same |
Families Citing this family (17)
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 |
US5031787A (en) * | 1989-09-01 | 1991-07-16 | Anchor Hocking Packaging Company | Low height floating disk closure |
US5285913A (en) * | 1992-11-24 | 1994-02-15 | H-C Industries, Inc. | Closure assembly with insert liner |
FR2722764B1 (en) * | 1994-07-20 | 1996-10-04 | Rical Sa | SCREW SEALING CAPSULE |
IT239014Y1 (en) * | 1995-10-24 | 2001-02-19 | Sacmi | SCREW CAPS IN PLASTIC MATERIAL FOR CLOSING CONTAINERS |
JP3769074B2 (en) * | 1996-06-25 | 2006-04-19 | 株式会社共立 | Molded cap with gasket |
US6506330B1 (en) | 1998-03-17 | 2003-01-14 | Lothar Schweigert | Apparatus and method for molding plastic closures |
US6099785A (en) * | 1998-03-17 | 2000-08-08 | Schweigert; Lothar | Method for injection molding plastic closures |
US6477823B1 (en) | 1998-07-30 | 2002-11-12 | Kerr Group, Inc. | Closure and container system for hot filled containers |
EP0987190A1 (en) | 1998-09-14 | 2000-03-22 | Crown Cork & Seal Technologies Corporation | Closure cap |
FR2793216B1 (en) | 1999-04-20 | 2001-06-08 | Pechiney Emballage Alimentaire | COMPOSITE CAPPING CAPSULE |
US6874648B2 (en) * | 2001-09-21 | 2005-04-05 | Owens-Illinois Closure Inc. | Closure with gas-barrier liner and package incorporating same |
GB2410494A (en) * | 2004-01-30 | 2005-08-03 | Francis Showering | Pressure venting container closure |
CN101421166B (en) * | 2006-04-17 | 2011-06-15 | 大和制罐株式会社 | Can container with screw |
US9750398B2 (en) | 2010-10-14 | 2017-09-05 | Medivators Inc. | Universal cap |
US9315306B2 (en) | 2013-11-01 | 2016-04-19 | Silgan White Cap LLC | Composite closure |
CN113291618B (en) * | 2021-07-26 | 2021-11-19 | 常州树杰塑业有限公司 | A add bucket for bearing weight of plastic film additive usefulness |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3207350A (en) * | 1961-10-20 | 1965-09-21 | Foster M Hagmann | Sealing closure for a crown-type bottle |
US4034882A (en) * | 1975-10-15 | 1977-07-12 | Rockware Group Limited | Container closures |
AU5220679A (en) * | 1978-11-06 | 1980-05-15 | Hicks, D.M. | Screw on cap with seal |
AU8083582A (en) * | 1980-12-22 | 1982-07-20 | Crown Cork & Seal Company (Delaware) Inc. | Closure |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US910128A (en) * | 1908-01-29 | 1909-01-19 | American Metal Cap Co | Bottle cap or closure. |
FR850871A (en) * | 1939-02-25 | 1939-12-28 | Rapeaud & Cie | Bottle stopper |
GB683521A (en) * | 1946-11-27 | 1952-12-03 | Aluminum Co Of America | Improvements in or relating to closure blanks |
US3006493A (en) * | 1958-08-14 | 1961-10-31 | Anchor Hocking Glass Corp | Closure cap |
US3122254A (en) * | 1960-12-08 | 1964-02-25 | Hagmann | Crown-type sealing closure |
US4076152A (en) * | 1977-05-23 | 1978-02-28 | Owens-Illinois, Inc. | Fitment-retaining closure |
US4462502A (en) * | 1980-12-22 | 1984-07-31 | Ethyl Molded Products Company | Threaded closure with liner |
DE3130312A1 (en) * | 1981-07-04 | 1983-01-20 | Max Hübner GmbH & Co, 8950 Kaufbeuren | Snap-on rotary closure |
-
1983
- 1983-06-23 AU AU16165/83A patent/AU533823B3/en not_active Expired
-
1984
- 1984-06-22 US US06/713,399 patent/US4629083A/en not_active Expired - Fee Related
- 1984-06-22 WO PCT/AU1984/000114 patent/WO1985000154A1/en not_active Application Discontinuation
- 1984-06-22 EP EP19840902500 patent/EP0148880A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3207350A (en) * | 1961-10-20 | 1965-09-21 | Foster M Hagmann | Sealing closure for a crown-type bottle |
US4034882A (en) * | 1975-10-15 | 1977-07-12 | Rockware Group Limited | Container closures |
AU5220679A (en) * | 1978-11-06 | 1980-05-15 | Hicks, D.M. | Screw on cap with seal |
AU8083582A (en) * | 1980-12-22 | 1982-07-20 | Crown Cork & Seal Company (Delaware) Inc. | Closure |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0179498A1 (en) * | 1984-10-19 | 1986-04-30 | Lynes Holding S.A. | Method of sealing a container |
US4911179A (en) * | 1987-05-28 | 1990-03-27 | Rolls-Royce Plc | Patient restraining device for use in physiotherapy |
EP0473529A1 (en) * | 1990-08-20 | 1992-03-04 | Ultimos Desarrollos, S.A. | Improved closure cap for bottles |
WO1994016962A1 (en) * | 1993-01-20 | 1994-08-04 | Alcoa Deutschland Gmbh Verpackungswerke | Plastic closure |
EP0688723A1 (en) * | 1994-06-22 | 1995-12-27 | Japan Crown Cork Co. Ltd. | Plastic container closure and method of producing the same |
US5769255A (en) * | 1994-06-22 | 1998-06-23 | Japan Crown Cork Co., Ltd. | Plastic container closure with high sealing precision |
US5980806A (en) * | 1994-06-22 | 1999-11-09 | Japan Crown Cork Co., Ltd. | Method of producing a plastic container closure |
Also Published As
Publication number | Publication date |
---|---|
AU533823B3 (en) | 1984-01-05 |
EP0148880A1 (en) | 1985-07-24 |
EP0148880A4 (en) | 1988-02-15 |
US4629083A (en) | 1986-12-16 |
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