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WO2021009551A1 - A metal screw cap for beverage bottle - Google Patents

A metal screw cap for beverage bottle Download PDF

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Publication number
WO2021009551A1
WO2021009551A1 PCT/IB2019/056164 IB2019056164W WO2021009551A1 WO 2021009551 A1 WO2021009551 A1 WO 2021009551A1 IB 2019056164 W IB2019056164 W IB 2019056164W WO 2021009551 A1 WO2021009551 A1 WO 2021009551A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw cap
dome
radius
bottle
cylinder
Prior art date
Application number
PCT/IB2019/056164
Other languages
French (fr)
Inventor
Andrzej FURMAN
Tomasz LATOS
Maciej KOCIOLEK
Original Assignee
Can-Pack Spolka Akcyjna
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 Can-Pack Spolka Akcyjna filed Critical Can-Pack Spolka Akcyjna
Priority to PCT/IB2019/056164 priority Critical patent/WO2021009551A1/en
Priority to US17/628,212 priority patent/US20220250804A1/en
Publication of WO2021009551A1 publication Critical patent/WO2021009551A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/348—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being rolled or pressed to conform to the shape of the container, e.g. metallic closures
    • 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
    • B65D41/0442—Collars or rings
    • 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
    • B65D41/3404—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element
    • B65D41/3409—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element the tamper element being integrally connected to the closure by means of bridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00277—Metal
    • 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
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
    • 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
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
    • B65D41/0421—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck and combined with integral sealing means contacting other surfaces of a container neck

Definitions

  • the object of the present invention is a metal screw cap for a beverage bottle consisting of a dome and a cylinder having internal thread adapted to co-operate with a threaded neck of the bottle and a liner affixed to the inner surface of the screw cap.
  • Screw caps of the presented type are used for closing bottles for beverages, in particular for carbonated beverages. After filling and closing bottles, carbonated beverages may also be subjected to pasteurization process. Because of high temperatures and a carbon dioxide contained in beverages, it may lead to very high inner pressure inside the bottle, e.g. 5-6 bar, what can undesirably cause escape of carbon dioxide in the area of the screw cap, since the sealing in the area of the bottle closure may become unsatisfactory because of high inner pressure. However reducing of the amount of the carbon dioxide results in undesirable decrease in the beverage quality. Therefore it is necessary to seal the screw cap in such a way that the“escape” of carbon dioxide does not happen.
  • a permeable closure may also cause penetration of air from outside inside the bottle, what may lead to fermentation of the beverage, and in case of beverages comprising oxidisable substances, to alteration of the chemical composition of the beverage (what is particularly undesirable in case of the beverages comprising vitamins or medicinal substances).
  • Patent specification PL374268A discloses a screw cap for containers equipped with a threaded neck, in particular polyethylene bottles, in which beverages containing carbon dioxide are stored.
  • the cap comprises a top plate, a cap jacket provided with an interior thread, an inner sealing ring having cylindrical shape, whose part extends outside in circumferential way and an outer sealing ring also having cylindrical shape, which is placed concentrically in relation to the inner ring.
  • Patent specification US2016288945 discloses a bottle with a screw cap made from light metal intended in particular for storing carbonated beverages. Improvement in relation to the tightness of the closure of the bottle was achieved by modification of the upper edge of the neck of the bottle and appropriate adjustment of the screw cap to such modified neck.
  • Patent specification US2016318674 discloses a screw cap intended for closing bottles for storing oxygen-sensitive medicines, which comprises a dome and a threaded skirt. Outstanding sealing was achieved by adding annular pliable gasket secured to the circumferential portion of the inner section of the dome and a layer of lacquer applied on the inner surface of the dome inside the gasket. In this construction, threaded connection of the twisted closing skirt with the pharmaceutical bottle under pressure causes, that the pliable gasket seals the upper edge of the pharmaceutical bottle, to provide a gas-tight seal.
  • a metal screw cap for a beverage bottle consisting of a dome and a cylinder having internal thread adapted to co-operate with a threaded neck of the bottle and a liner affixed to the inner surface of the screw cap in accordance with the invention is characterised by this that the dome is concave and is connected with the cylinder through a top ring, where between the dome and the top ring there is a circumferential groove having the radius of the inner curvature R1.
  • the cylinder is connected with a security band by frangible bridges.
  • the depth of the screw cap is from 1 to 10 mm, preferably from 1.2 to 8 mm.
  • the radius R1 is from 0.5 to 4 mm, when the screw cap is not twisted.
  • the radius R1 is from 1 to 3 mm.
  • the diameter of the cylinder is from 10 to 100 mm.
  • the radius of the curvature of the dome of the screw cap is from 35 to 105 mm.
  • the radius R2 is from 45 to 50 mm.
  • the screw cap according to the invention allows to increase force of the sealing of the system by use of the inner pressure.
  • Special shape of the screw cap causes that the pressure inside the bottle deforms the screw cap in a controlled way and pushes its wall to the wall of the bottle in the place, where the groove is in the dome.
  • the screw cap according to the invention is a self-sealing screw cap.
  • the dome 1 is concave and is connected with the cylinder 3 having the height H through the top ring 2. Between the dome 1 and the top ring 2 is placed the circumferential groove having the radius of the inner curvature R1.
  • the cylinder 3 is equipped with a tread 4.
  • the cylinder 3 is connected with a security band 5 by the frangible bridges 6.
  • the depth of the screw cap D is from 1 to 10 mm, preferably from 1.2 to 8 mm.
  • the radius R1 is from 0.5 to 4 mm, when the screw cap is not twisted.
  • the radius R1 is from 1 to 3 mm.
  • the diameter of the cylinder S is from 10 to 100 mm.
  • the radius R2 of the curvature of the dome 1 of the screw cap is from 35 to 105 mm.
  • the radius R2 is from 45 to 50 mm.
  • the screw cap 8 is applied on the threaded neck 9 of the bottle 10. Twisting of the screw cap causes sealing of the outlet of the bottle, because the radius R1 is reduced, owing to that the wall of the screw cap is being pushed to the wall of the bottle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

A metal screw cap for a beverage bottle consisting of a dome (1) and a cylinder (3) having internal thread (4) adapted to co-operate with a threaded neck of the bottle and a liner (7) affixed to the inner surface of the screw cap, where the dome (1) is concave and is connected with the cylinder (3) through a top ring (2), where between the dome (1) and the top ring (2) there is a circumferential groove having the radius of the inner curvature R1.

Description

A METAL SCREW CAP FOR BEVERAGE BOTTLE
TECHNICAL FIELD
The object of the present invention is a metal screw cap for a beverage bottle consisting of a dome and a cylinder having internal thread adapted to co-operate with a threaded neck of the bottle and a liner affixed to the inner surface of the screw cap.
BACKGROUND ART.
Screw caps of the presented type are used for closing bottles for beverages, in particular for carbonated beverages. After filling and closing bottles, carbonated beverages may also be subjected to pasteurization process. Because of high temperatures and a carbon dioxide contained in beverages, it may lead to very high inner pressure inside the bottle, e.g. 5-6 bar, what can undesirably cause escape of carbon dioxide in the area of the screw cap, since the sealing in the area of the bottle closure may become unsatisfactory because of high inner pressure. However reducing of the amount of the carbon dioxide results in undesirable decrease in the beverage quality. Therefore it is necessary to seal the screw cap in such a way that the“escape” of carbon dioxide does not happen. A permeable closure may also cause penetration of air from outside inside the bottle, what may lead to fermentation of the beverage, and in case of beverages comprising oxidisable substances, to alteration of the chemical composition of the beverage (what is particularly undesirable in case of the beverages comprising vitamins or medicinal substances).
Patent specification PL374268A discloses a screw cap for containers equipped with a threaded neck, in particular polyethylene bottles, in which beverages containing carbon dioxide are stored. The cap comprises a top plate, a cap jacket provided with an interior thread, an inner sealing ring having cylindrical shape, whose part extends outside in circumferential way and an outer sealing ring also having cylindrical shape, which is placed concentrically in relation to the inner ring.
Patent specification US2016288945 discloses a bottle with a screw cap made from light metal intended in particular for storing carbonated beverages. Improvement in relation to the tightness of the closure of the bottle was achieved by modification of the upper edge of the neck of the bottle and appropriate adjustment of the screw cap to such modified neck. Patent specification US2016318674 discloses a screw cap intended for closing bottles for storing oxygen-sensitive medicines, which comprises a dome and a threaded skirt. Outstanding sealing was achieved by adding annular pliable gasket secured to the circumferential portion of the inner section of the dome and a layer of lacquer applied on the inner surface of the dome inside the gasket. In this construction, threaded connection of the twisted closing skirt with the pharmaceutical bottle under pressure causes, that the pliable gasket seals the upper edge of the pharmaceutical bottle, to provide a gas-tight seal.
DISCLOSURE OF THE INVENTION
A metal screw cap for a beverage bottle consisting of a dome and a cylinder having internal thread adapted to co-operate with a threaded neck of the bottle and a liner affixed to the inner surface of the screw cap in accordance with the invention is characterised by this that the dome is concave and is connected with the cylinder through a top ring, where between the dome and the top ring there is a circumferential groove having the radius of the inner curvature R1.
The cylinder is connected with a security band by frangible bridges. The depth of the screw cap is from 1 to 10 mm, preferably from 1.2 to 8 mm.
The radius R1 is from 0.5 to 4 mm, when the screw cap is not twisted.
The radius R1 is from 1 to 3 mm.
The diameter of the cylinder is from 10 to 100 mm.
The radius of the curvature of the dome of the screw cap is from 35 to 105 mm.
The radius R2 is from 45 to 50 mm.
The screw cap according to the invention allows to increase force of the sealing of the system by use of the inner pressure. Special shape of the screw cap causes that the pressure inside the bottle deforms the screw cap in a controlled way and pushes its wall to the wall of the bottle in the place, where the groove is in the dome. Thereby the screw cap according to the invention, is a self-sealing screw cap.
The subject of the invention is disclosed at the drawings, where fig. 1 illustrates the screw cap, fig. 2 - its cross-section, fig.3 - a cross- section of the neck of the bottle with the screw cap, fig. 4 and 5 - illustrate the mode of action of the screw cap, fig.4 - before closing, fig. 5 - after closing. EXAMPLE
The dome 1 is concave and is connected with the cylinder 3 having the height H through the top ring 2. Between the dome 1 and the top ring 2 is placed the circumferential groove having the radius of the inner curvature R1. The cylinder 3 is equipped with a tread 4. The cylinder 3 is connected with a security band 5 by the frangible bridges 6. The depth of the screw cap D is from 1 to 10 mm, preferably from 1.2 to 8 mm. The radius R1 is from 0.5 to 4 mm, when the screw cap is not twisted. Preferably the radius R1 is from 1 to 3 mm. The diameter of the cylinder S is from 10 to 100 mm. The radius R2 of the curvature of the dome 1 of the screw cap is from 35 to 105 mm. Preferably the radius R2 is from 45 to 50 mm.
Inside of the screw cap is lined with a liner 7.
The screw cap 8 is applied on the threaded neck 9 of the bottle 10. Twisting of the screw cap causes sealing of the outlet of the bottle, because the radius R1 is reduced, owing to that the wall of the screw cap is being pushed to the wall of the bottle.

Claims

PATENT CLAIMS
1. A metal screw cap for a beverage bottle consisting of a dome and a cylinder having internal thread adapted to co-operate with a threaded neck of the bottle and a liner affixed to the inner surface of the screw cap, characterized in that, the dome (1) is concave and is connected with the cylinder (3) through a top ring (2), where between the dome (1) and the top ring (2) there is a circumferential groove having the radius of the inner curvature R1.
2. The screw cap according to claim 1, characterized in that, the cylinder (3) is connected with a security band (5) by frangible bridges (6).
3. The screw cap according to claim 1 or 2, characterized in that, the depth of the screw cap (D) is from 1 to 10 mm, preferably from 1.2 to 8 mm.
4. The screw cap according to claim 1 or 2 or 3, characterized in that, the radius (R1) is from 0.5 to 4 mm, when the screw cap is not twisted.
5. The screw cap according to claim 4, characterized in that, the radius (R1) is from 1 to 3 mm.
6. The screw cap according to any of the preceding claims, characterized in that, the diameter of the cylinder (S) is from 10 to 100 mm.
7. The screw cap according to any of the preceding claims, characterized in that, the radius (R2) of the curvature of the dome (1) of the screw cap is from 35 to 105 mm.
8. The screw cap according to claim 7, characterized in that, the radius R2 is from 45 to 50 mm.
PCT/IB2019/056164 2019-07-18 2019-07-18 A metal screw cap for beverage bottle WO2021009551A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IB2019/056164 WO2021009551A1 (en) 2019-07-18 2019-07-18 A metal screw cap for beverage bottle
US17/628,212 US20220250804A1 (en) 2019-07-18 2019-07-18 A metal screw cap for beverage bottle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2019/056164 WO2021009551A1 (en) 2019-07-18 2019-07-18 A metal screw cap for beverage bottle

Publications (1)

Publication Number Publication Date
WO2021009551A1 true WO2021009551A1 (en) 2021-01-21

Family

ID=67997661

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/056164 WO2021009551A1 (en) 2019-07-18 2019-07-18 A metal screw cap for beverage bottle

Country Status (2)

Country Link
US (1) US20220250804A1 (en)
WO (1) WO2021009551A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197055A (en) * 1963-07-09 1965-07-27 Aluminum Co Of America Plastic container, metallic closure packaging
US4813557A (en) * 1984-03-05 1989-03-21 Sewell Plastics Inc. Pasteurizable container closure
WO2009064032A1 (en) * 2007-11-12 2009-05-22 Hyunjin Cho Dual sealing structure for container
GB2542641A (en) * 2015-07-24 2017-03-29 Threadless Closures Ltd Container and closure

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556335A (en) * 1969-06-06 1971-01-19 Brockway Glass Co Inc Container closure
GB1505082A (en) * 1974-11-13 1978-03-22 Searle & Co Containers with screw caps
US5458252A (en) * 1994-06-03 1995-10-17 American Precision Plastics Corporation Invertible, pressure-responsive sealing cap
US20050147773A1 (en) * 2004-01-06 2005-07-07 Saliaris George P. Thermally conductive cap
GB0406764D0 (en) * 2004-03-25 2004-04-28 Carbonite Corp Beverage containers
US9211969B2 (en) * 2010-02-22 2015-12-15 Medline Industries, Inc Specimen container
FR3019148B1 (en) * 2014-03-26 2016-03-25 Ardagh Mp West France METAL CONTAINER COMPRISING A CLAMP ADAPTED TO RECEIVE A SCREW CAPSULE TYPE SHUTTING ELEMENT
US20170197764A1 (en) * 2014-07-25 2017-07-13 Threadless Closures Limited Container And Closure
AT516972B1 (en) * 2015-04-02 2019-02-15 Red Bull Gmbh Bottle with a cap
AU2020304624A1 (en) * 2019-06-26 2022-01-27 Ball Corporation A method and apparatus for sealing a metallic container with a metallic end closure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197055A (en) * 1963-07-09 1965-07-27 Aluminum Co Of America Plastic container, metallic closure packaging
US4813557A (en) * 1984-03-05 1989-03-21 Sewell Plastics Inc. Pasteurizable container closure
WO2009064032A1 (en) * 2007-11-12 2009-05-22 Hyunjin Cho Dual sealing structure for container
GB2542641A (en) * 2015-07-24 2017-03-29 Threadless Closures Ltd Container and closure

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