WO2018172979A1 - Bouchon annulaire en plastique moulé d'un seul tenant - Google Patents

Bouchon annulaire en plastique moulé d'un seul tenant Download PDF

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Publication number
WO2018172979A1
WO2018172979A1 PCT/IB2018/051961 IB2018051961W WO2018172979A1 WO 2018172979 A1 WO2018172979 A1 WO 2018172979A1 IB 2018051961 W IB2018051961 W IB 2018051961W WO 2018172979 A1 WO2018172979 A1 WO 2018172979A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
container
outer shell
sealing
threaded neck
Prior art date
Application number
PCT/IB2018/051961
Other languages
English (en)
Inventor
Ramesh Pillai
Original Assignee
Ramesh Pillai
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 Ramesh Pillai filed Critical Ramesh Pillai
Priority to US16/487,438 priority Critical patent/US20200062459A1/en
Priority to EP18770415.0A priority patent/EP3601084A4/fr
Publication of WO2018172979A1 publication Critical patent/WO2018172979A1/fr

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
    • B65D41/3404—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
    • 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
    • B65D41/325—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 with integral internal sealing means
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
    • B65D51/1616—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a filter
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • 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

Definitions

  • This invention relates generally to articles made of formable materials. More particularly, this invention relates to the inventive construction, methods of preparation and use of a chemical- resistant, leak-proof, tamper-evident, self-sealing, integrally moulded closure for use in conjunction with containers employed predominantly in the chemical, food, and pharmaceutical industries.
  • plastic majorly the ease of formability, lighter weight, ability to form thin-walled yet resilient structures, thermal and electrical insulating properties, appealing aesthetics, chemical inertness, ease of sterilization, decreased breakage, recyclability and lower costs as compared to glass, steel or other comparable materials have made them increasingly popular in the packaging industry.
  • Prime examples of such plastics are virgin PET, PP, and HDPE which have been approved by the Food and Drug Administration authorities globally as being safe for use in contact with foodstuffs, chemicals, and pharmacological materials.
  • Closable containers designed for holding chemical, food, or pharmaceutical preparations are conventionally manufactured by blow-molding of discrete plastic performs, or injection moulding in preformed moulds, that result in a paired couple consisting of a container and it's mated but removable closure.
  • the art abounds with examples of plastic bottles for aforementioned usages. Vials and tubes intended for use in laboratories for centrifugation, heating and freezing of sample fluids as well as dispensing valves are not difficult to envisage as an extension of such ambit.
  • a protective and sanitary seal between the container and its closure is an extremely critical aspect while achieving their intended application.
  • surfaces of the container and closure contacting each other may not provide a suitable barrier for limiting material, air and / or thermal leakage or risk of contamination.
  • FIGURE 1 Prior art, to the extent surveyed, lists some scattered attempts to address the issues mentioned hereinabove.
  • plastic caps with pre-cut wads (in the shape and size of the cap) inserted in them illustrated in FIGURE 1 are popular in the packaging industry. These caps need to be passed through an induction tunnel for induction sealing wherein electrical current causes wax layer on an aluminum foil seal to detach itself from the wad and cling onto neck of the container to made the seal.
  • This is not an ideal solution however, as it introduces multiplicity of operations and child components appreciably because the closure essentially requires two-components to be independently arranged (wad + cap), and applied via additional operations of wadding, and induction sealing.
  • Induction sealing wads are designed for one-time use, hence the seal is not 100% recyclable.
  • the resultant product is can be easily copied or duplicated, does not provide a positive leak-tight seal once induction seal is removed (the user has to tear the seal at first time use, which cannot be reversed).
  • induction sealing process cannot be 100% guaranteed, and rejections do often result in large losses. Rejections can be due to less-than perfect induction seal, wad-delamination, off-center wad seating, weak seal due to uneven mouth surfaces etc.
  • major fire /explosion hazards do exist if passing solvent-based pesticides / bottles through an induction tunnel. It is therefore a pressing need to have some safe means that can substitute the need for having inductive sealing processes for achieving purpose-oriented containers employed predominantly in the chemical, food, and pharmaceutical industries.
  • FIGURE 2 Another example of prior art attempts to resolve the aforementioned issues are inner plugs made of plastic illustrated in FIGURE 2 which are often used for containers directed towards storage of chemicals and pesticides.
  • plugs dimensioned for tight inner fit with mouth of the container need to be moulded separately in addition to a separate cap which is then screwed on the mouth of the container.
  • This solution though low cost, has same limitations as plastic caps with wad inserts, besides having very high risk of spillage (while pulling out the inner plug which is originally pushed in under high pressure), leakage (in case mouth dimensions are erroneous or inner mouth surface finish is not maintained). Therefore the need to have some safe means that can substitute the need for having inductive sealing processes for achieving purpose-oriented containers employed predominantly in the chemical, food, and pharmaceutical industries yet persists.
  • the plug ring helps to seal mouth of the container and provides leak-proof character.
  • the inner plug is made of the same material, most commonly PP or HDPE, as that of the cap, the seal between the mouth of the container and the cap is not hermetic, and hence the chances of leakage are very high. Leakages manifest even due to micro defects in the plug or the cap (fluids leak because of capillary action). Therefore, the need to have a better sealing closure which is not having deficiencies of background technologies yet persists.
  • a separate PE layer or a form layer is cut in dimensions of the annular region made in the cap by the inner plug ring.
  • This form component is not an integral part of the cap. It needs to be placed in a separate manual step and when inserted, sits on the lip at the mouth of the container for ensuring leak proof character.
  • PE forms or rubber gaskets that are commonly used in an attempt to ensure leak-proof seal between caps and containers.
  • forms or gaskets are third party components and need to be moulded separately or cut to size in case of form layer and manually inserted for implementation.
  • materials are not chemically resistant and hence susceptible to deleterious effects when used in conjunction with strong or hazardous chemicals.
  • these forms or gaskets are not fixedly attached to the caps and can therefore fall off during transportation. This increases the operational overheads which are majorly counterproductive. Therefore the need to have some safe means that can substitute the need for having inductive sealing processes for achieving purpose-oriented containers employed predominantly in the chemical, food, and pharmaceutical industries yet persists.
  • the inner plug or induction seal is not a part of the cap and needs to be incorporated in a discrete step / procedure performed either before or after screwing on the cap.
  • a leak-proof closure being a bottle cap, having an infallible but quick disconnect coupling when removably received in conjunction with means for holding chemical, food, or pharmaceutical preparations, particularly a container such as one among a bottle, vial, tube, jerry-can, or equivalent.
  • a leak-proof closure being a cap, having an infallible but quick disconnect coupling when removably received in conjunction with means for dispensing, such as a valve, tube or equivalent.
  • closure so provided has a unibody construction, and the manner of its production does away with multiplicity of operations and child components otherwise involved in manufacturing closures of equivalent function.
  • closure so provided exhibits high chemical resistance or better, inertness, while helping to contain chemical, food, or pharmaceutical preparations.
  • closure so provided allows protective and sanitary seal yet does not introduce additional cost and process burdens on the packaging process.
  • closure so provided allows ready integration with conventional bottle neck designs.
  • closure so provided allows safe and secure opening and closing the container or conduit the closure is received with.
  • closure so provided that it reduces a separate step of induction sealing or using inner plug fitting to containers, thereby streamlining and automating the packaging processes.
  • FIGURE 1 illustrates a prior art plastic cap with wad inserted in it, and the bottle to which it is coupled having an induction seal.
  • FIGURE 2 illustrates a prior art inner plug made of plastic and the container to which it is received.
  • FIGURE 3 (a) and (b) illustrate a schematic cross-sectional view and bottom side perspective view respectively of the CRTESS cap made according to the disclosures hereof.
  • FIGURE 4 (a) and (b) are schematic illustrations of the CRTESS cap in use in conjunction with a jerry-can and bottle respectively, particularly identifying therein the tamper-evident ring provided according to the disclosures hereof.
  • FIGURE 5 (a) to (d) are top view, isometric view, side view, front view, and bottom views respectively of the CRTESS cap made according to the disclosures hereof.
  • FIGURE 6 is a schematic cross-sectional view of the functional seal achieved by the CRTESS cap according to the disclosures hereof.
  • FIGURE 7 (a) to (c) are side view, top view, and isometric view of one embodiment hereof, being the 61 mm CRTESS CAP with provision in cap for vent plug.
  • FIGURE 8 (a) to (c) are side view, top view, and isometric view of another embodiment hereof, being the CRTESS CAP with racket type tamper-evidence.
  • FIGURE 9 (a) to (c) are side view, top view, and isometric view of another embodiment hereof, being the CRTESS CAP with sealing layer around annular space of the cap.
  • an inventive integrally moulded plastic plug ring cap for sealing a container having an externally threaded neck thereon. Also disclosed is a method for forming said cap.
  • the present inventor proposes to address at least majority of the shortcomings of state-of-art by advantageous implementation of a bi-injection moulding process wherein discrete thermoplastics are moulded sequentially for resulting correspondingly into a soft inner lip. Outer hard cap / shell is optionally provisioned with external knurling for better grip and to be compatible with automatic capping machines.
  • Usage of the closure proposed herein is of screw fit type for quick disconnect coupling with the container / conduit at which said closure is intended to be received.
  • Resulting article is a integrally moulded plastic plug ring cap capable of providing a guaranteed, reversible hermetic seal when received at the mouth of means for holding or conveying chemical, food, and pharmaceutical preparations.
  • the present invention primarily focuses on avoiding, or at least minimizing the issues recited in the background section of this paper. Accordingly, the disclosures herein are directed towards the inventive construction, methods of preparation and use of a leak-proof closure, being the CRTESS cap, having an infallible but quick disconnect coupling when removably received in conjunction with means for holding chemical, food, or pharmaceutical preparations, particularly a container having an externally threaded neck such as one among a bottle, vial, tube or equivalent. Further embodiments of the present invention are directed to a corollary aspect, being a leak-proof closure, being a cap, having an infallible but quick disconnect coupling when removably received in conjunction with means for dispensing, such as a valve, tube or equivalent.
  • construction of the CRTESS cap (01) includes a plastic outer shell (02) of cylindrical geometry that provides strength and rigidity, and a chemically resistant inner plug ring (03) that provides leak-proof character to the CRTESS cap (01).
  • the outer shell (02) is composed of a flat circular top having a circumferentially-continuous, internally-threaded side wall descending at a right angle from said flat circular top to end in an open mouth to be received on the externally threaded neck of the container for sealing the same.
  • inner sealing layer that is the inner plug ring (03) is of chemically resistant soft material (flexible sealing material which is moldable and compatible with PE materials for adhesion while injection moulding) which helps in effective sealing against lip (04) of mouth of the bottle (05) at which said CRTESS cap (01) is to be received.
  • the inner plug ring (03) is moulded to assume an annular geometry and arranged to descend concentrically from underbelly of the flat circular top of the outer shell to an extent (height, thickness, conicity, etc) sufficient to allow force-fitting onto the externally threaded neck of the container when the cap is screwed home thereon.
  • the soft material of the inner plug ring (03) ensures that undulations / unevenness in surface of the bottle lip (04) to be accommodated while providing a secure seal. This in turn, ensures that passage of air, heat, and / or materials in-between the CRTESS cap (01) and the bottle (05) at which it is received is nil, or at least limited to insignificant levels. Therefore, the CRTESS cap (01) has infallible leak-proof character when removably received in conjunction with means for holding chemical, food, or pharmaceutical preparations.
  • tamper-evident means continuous with mouth of the outer shell (02) are included for positive indication of tampering readily discernable to eyes of the user.
  • Said tamper-evident means being composed of two initially joined, but separable members, such as a perforated tear-type or ratchet-type ring, of which one member is attached at open end of the outer shell (02) and the other member fixedly embraces the externally threaded neck (08) of the container
  • the CRTESS cap (01) optionally is made to have knurling (06) on its external surface for aesthetics as well as for the CRTESS cap (01) to be used in conjunction with an automatic capping machine.
  • Internal surface of the outer shell (02) has a thread for screw fit onto matching thread (07) on neck (08) of the bottle (05). Mouth of bottle (05) sits in the annular area made in the CRTESS cap (01) by the inner plug ring (03).
  • the CRTESS cap (01) further includes a tamper-evident ring (09) that sits around neck (06) of the bottle (07).
  • the tamper-evident ring (09) is designed to be broken off and remains on the bottle (05) when the CRTESS cap (01) is removed from the bottle (05) for the first time, thereby giving an immediate positive indication of tampering readily discernable to eyes of the user.
  • it is critical that diameter and profile of the locking ring (10) that sits around neck (08) of the bottle (05) has to be maintained within tolerance.
  • the CRTESS cap (01) is prepared via a bi-injection moulding process wherein the inner plug ring (03) is molded first, and followed by molding of the outer shell (02). This ensures that the resulting product, that is the CRTESS cap (01), has a one piece construction being achieved via a simplistic process and thereby does away with multiplicity of operations and child components otherwise involved in manufacturing prior art closures of equivalent function.
  • Example 1 Protocol for production of the CRTESS Cap
  • the CRTESS cap (01) proposed herein is prepared via a bi-injection moulding process wherein the inner plug ring (03) is molded first, and followed by molding of the outer shell (02).
  • FIGURE 5 (a) to (d) are top view, isometric view, side view, front view, and bottom views respectively of the final product, that is the CRTESS cap (01) made according to the disclosures hereof.
  • a plastic HPDE cap is maintained during moulding at an increased temperature and sealing area is injected under high temperature and pressure conditions with a chemically-resistant material to form the inner plug ring.
  • Formable material of the inner plug ring is selected to be one having less rigidity than that of the outer shell.
  • High temperatures cause the sealing area to fuse into a single component.
  • the sealing portion is moulded to form a skirt, therein forming the walls and horizontal area beneath the cap. This imparts a very distinct advantage to the cap by providing a very good sealing around the mouth of the bottle as depicted in the accompanying Figure 6. Consequently, the sealing portion engages with the bottle neck and provides 100% leak-proof character every time the cap is closed.
  • the CRTESS cap proposed herein may be produced in alternative versions depending on the specific use-case and application intended.
  • the following versions are few non-limiting examples in this line- a) CRTESS Cap with a vent plug insertion option and self-sealing:
  • a) to (c) provision is made in the CRTESS cap itself to insert a vent plug (01 1).
  • the vent plugs are third party sourced components comprising a plastic plug with a membrane inside. The membrane doesn't allow liquid to pass only air to pass. Hence any pressure difference which occurs inside the container is solved by the vent plug.
  • the CRTESS cap proposed herein can be used on a large scale across all bottles with 46mm and 61 mm neck diameters. However nothing said in this paper shall prohibit scaling up or down, or assuming an alternative profile of the cap, for suiting different neck sizes and profiles of any of presently available or future means holding or conveying any among holding chemical, food, or pharmaceutical preparations.
  • the present invention encompasses the production and use of able caps, covers or seals for protecting means for holding or dispensing chemical, food, and pharmaceutical preparations.
  • the present invention is identified in having the following salient features-
  • Inner plug ring of the CRTESS cap chemically resistant and thus can be safely used in association with means holding or conveying any among holding chemical, food, or pharmaceutical preparations.
  • CRTESS cap can be used just like any other cap by the user
  • CRTESS cap can be screwed on using a capping machine
  • CRTESS cap can be screwed on and off any number of times, thereby allowing repeated usability and recyclability
  • the outer cap and inner plug ring can be provided in different colors, thereby affording greater choice for aesthetics besides being an anti- counterfeiting measure or to validate the authenticity of any product sold in the market (color of inner plug ring is only known to the bonafide manufacturer, and can be varied from batch to batch. Any discrepancy therefore will automatically count as a counterfeit article).
  • Presence of tamper-evident ring allows positive indication of tampering readily discernable to eyes of the user.

Landscapes

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

Abstract

L'invention concerne un bouchon à vis produit par un procédé de moulage par bi-injection, dans lequel des thermoplastiques distincts sont moulés séquentiellement pour obtenir de manière correspondante une lèvre intérieure souple et une coque dure extérieure pour sceller des contenats ou des conduits ayant un col fileté à l'extérieur, lesdits contenants ou conduits étant destinés à contenir ou à transporter des préparations chimiques, alimentaires et pharmaceutiques.
PCT/IB2018/051961 2017-03-23 2018-03-23 Bouchon annulaire en plastique moulé d'un seul tenant WO2018172979A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/487,438 US20200062459A1 (en) 2017-03-23 2018-03-23 Integrally moulded plastic plug ring cap
EP18770415.0A EP3601084A4 (fr) 2017-03-23 2018-03-23 Bouchon annulaire en plastique moulé d'un seul tenant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201721010214 2017-03-23
IN201721010214 2017-03-23

Publications (1)

Publication Number Publication Date
WO2018172979A1 true WO2018172979A1 (fr) 2018-09-27

Family

ID=63584284

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/051961 WO2018172979A1 (fr) 2017-03-23 2018-03-23 Bouchon annulaire en plastique moulé d'un seul tenant

Country Status (3)

Country Link
US (1) US20200062459A1 (fr)
EP (1) EP3601084A4 (fr)
WO (1) WO2018172979A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200981A (en) * 1961-10-03 1965-08-17 Wicanders Korkfabriker Ab Bottle caps
US3799380A (en) * 1968-08-18 1974-03-26 Sumitomo Chemical Co Screw lids or crown caps for bottles having improved sealing gaskets
US4717034A (en) * 1982-07-06 1988-01-05 Owens-Illinois Closure Inc. One-piece thermoplastic closure having press-on screw off structure including spaced vertical ribs in the skirt of the closure
US4978016A (en) * 1989-09-01 1990-12-18 Anchor Hocking Corporation Tamper indicating closure having retaining hoop with relief windows
US6696123B2 (en) * 1997-12-24 2004-02-24 Owens-Illinois Closure Inc. Plastic closure with compression molded barrier liner
US20040144474A1 (en) * 2000-11-07 2004-07-29 Drummond Desmond Charles Desiccant stopper
EP1698564A1 (fr) 2005-03-03 2006-09-06 Bericap Bouchon avec fonction anti-sabotage et sécurité au dégazage
US20150183148A1 (en) * 2013-12-31 2015-07-02 Kwong Fat LAU Demolding mechanism of a plastic bottle cap mold and a method therefor
EP3144245A1 (fr) 2015-09-15 2017-03-22 Mould & Matic Solutions GmbH Capuchon de fermeture

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631933B1 (fr) * 1988-05-30 1991-02-08 Astra Plastique Dispositif de bouchage hermetique
GB201501940D0 (en) * 2015-02-05 2015-03-25 Obrist Closures Switzerland A method of forming a closure

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200981A (en) * 1961-10-03 1965-08-17 Wicanders Korkfabriker Ab Bottle caps
US3799380A (en) * 1968-08-18 1974-03-26 Sumitomo Chemical Co Screw lids or crown caps for bottles having improved sealing gaskets
US4717034A (en) * 1982-07-06 1988-01-05 Owens-Illinois Closure Inc. One-piece thermoplastic closure having press-on screw off structure including spaced vertical ribs in the skirt of the closure
US4978016A (en) * 1989-09-01 1990-12-18 Anchor Hocking Corporation Tamper indicating closure having retaining hoop with relief windows
US6696123B2 (en) * 1997-12-24 2004-02-24 Owens-Illinois Closure Inc. Plastic closure with compression molded barrier liner
US20040144474A1 (en) * 2000-11-07 2004-07-29 Drummond Desmond Charles Desiccant stopper
EP1698564A1 (fr) 2005-03-03 2006-09-06 Bericap Bouchon avec fonction anti-sabotage et sécurité au dégazage
US20150183148A1 (en) * 2013-12-31 2015-07-02 Kwong Fat LAU Demolding mechanism of a plastic bottle cap mold and a method therefor
EP3144245A1 (fr) 2015-09-15 2017-03-22 Mould & Matic Solutions GmbH Capuchon de fermeture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3601084A4 *

Also Published As

Publication number Publication date
EP3601084A4 (fr) 2021-02-24
EP3601084A1 (fr) 2020-02-05
US20200062459A1 (en) 2020-02-27

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