GB2033350A - Tamperproof closure - Google Patents

Tamperproof closure Download PDF

Info

Publication number
GB2033350A
GB2033350A GB7843501A GB7843501A GB2033350A GB 2033350 A GB2033350 A GB 2033350A GB 7843501 A GB7843501 A GB 7843501A GB 7843501 A GB7843501 A GB 7843501A GB 2033350 A GB2033350 A GB 2033350A
Authority
GB
United Kingdom
Prior art keywords
skirt portion
cap
container
directed
lower skirt
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.)
Granted
Application number
GB7843501A
Other versions
GB2033350B (en
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.)
Ug Closures & Plastics Ltd
Original Assignee
Ug Closures & Plastics Ltd
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 Ug Closures & Plastics Ltd filed Critical Ug Closures & Plastics Ltd
Priority to GB7843501A priority Critical patent/GB2033350B/en
Publication of GB2033350A publication Critical patent/GB2033350A/en
Application granted granted Critical
Publication of GB2033350B publication Critical patent/GB2033350B/en
Expired legal-status Critical Current

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
    • B65D41/3423—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
    • 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
    • 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
    • B65D2401/25—Non-metallic tear-off strips

Landscapes

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

Abstract

The skirt of a container cap comprises an upper skirt portion 1 of relatively rigid plastics material joined at its lower margin to a lower skirt portion 2 of relatively flexible plastics material, the lower skirt portion having means 5 directed inwardly thereof for engaging an outwardly-directed feature 4 on the neck of the container, said engagement tending to resist axial movement of the lower skirt portion in a direction removing the cap from the container. The inwardly- directed means may be an annular flange or an annular series of spaced fingers directed towards the top of the cap. <IMAGE>

Description

SPECIFICATION Tamperproof closure This invention relates to closures for containers, and especially to a closure of the tamperproof variety.
Tamperproof closures are well known. They are normally made of metallic material, for example aluminium ortinplate, and comprise an upper skirt portion separated from a security ring by a series of spaced bridges. When the closure is applied to a container, the upper skirt portion is conformed to thread formed in the container neck, and the security band is crimped beneath an annular bead or rib formed below the thread. When the upper skirt portion of the cap is removed from the container by unscrewing, the joining bridges break and the security ring remains on the container.
This is a visual indication that the cap has been removed from the container.
Attempts have been made in the recent past to produce tamperproof closures from plastics materials, and these have been made in a generally similar manner to the metal tamperproof closures described above, save for the fact that the upper skirt portion in a plastics closure has a pre-formed thread for engagement with the threaded portion of the container neck. The lower skirt portion, or security ring, of these plastics closures is normally thermally deformed or heatshrunk into place beneath the co-operating bead on the container.
One disadvantage of metal tamperproof closures of the above-described type is that the security ring which remains on the container has a sharp and therefore potentially dangerous edge.
The plastics tamperproof closure is much better in this respect, but has the defect that if the top of the closure and the upper skirt portion thereof are too resilient the top and upper skirt portion may not be sufficiently rigid to combat changes of pressure within the container, e.g. in those instances where carbonated beverages are involved.
It is an object of the present invention to provide a cap for a container which is of the tamperproof variety and which does not suffer from the disadvantages encountered with metal and plastics tamperproof caps knwon hitherto.
According to the present invention a cap for a container comprises a top and a peripherally depending skirt, the skirt comprising an upper skirt portion of relatively rigid plastics material joined at its lower margin to a lower skirt portion of relatively flexible plastics material, the lower skirt portion having means directed inwardly thereof for engaging an outwardly directed feature on the neck of the container, said engagement tending to resist axial movement of the lower skirt portion in a direction removing the cap from the container.
In a preferred embodiment the inwardly directed means on the lower skirt portion of the cap comprises either an annular flange directed not only inwardly but upwardly towards the top of the cap; or a series of spaced fingers similarly directed.
Preferably also the upper skirt portion of the cap, which is rigid relative to the lower skirt portion, together with the top thereof, is formed of a thermosetting plastics material or a rigid or semi-rigid thermoplastics material, the lower skirt portion being formed of a thermoplastics material.
Thus, the upper skirt portion may be formed of rigid or semi-rigid polystyrene, polyethylene or polypropylene, suitably rigid polystyrene; the lower skirt portion, less rigid than the upper skirt portion, may be made of a similar material, but is preferably of impact-modified polystyrene.
Although the lower skirt portion is relatively less rigid than the upper skirt portion it may nevertheless have a degree of rigidity, and indeed it must clearly not be too flexible since otherwise the proper application of the cap to a container would be impossible. Other suitable materials for forming the upper part of the cap include phenolic and amino resins, specifically phenolformaldehyde resins, urea-formaldehyde resins and melamine-formaldehyde resins.
The upper and lower skirt portion are preferably joined by welding (e.g. ultrasonic, friction or thermal welding), and the joint may comprises a thin annular web of thermoplastics material or a series of spaced brides of thermoplastics material, preferably integrally formed with the lower skirt portion. The upper and lower portions of the cap may alternatively be joined by means of suitable adhesives.
The upper rigid part of the cap is suitably provided with means engaging co-operating means on the container neck. That is to say, the upper skirt portion may be provided interiorly with a single- or multi-start thread which engages a complementary thread on the container neck.
Beneath the thread on the container neck is preferably an annular outstanding bead or rib, beneath which is engaged the engaging means on the lower skirt portion of the cap.
The lower skirt portion may, if desired, itself provide or be provided with a tear-tab, whereby the lower skirt portion of the cap may be removed from the container before the upper skirt portion of the cap can be removed.
In manufacturing a cap according to the invention, the upper part of the cap is formed by an injection or compression-moulding process, and the lower skirt portion by an injection process.
The two skirt portions of the cap are then joined together, e.g. by ultrasonic thermal or friction welding or adhesive bonding.
The accompanying drawings illustrate two embodiments of the present invention.
Figure 1 is a part-sectional view of a cap according to the invention applied to a container, e.g. of glass or a thermoplastics material. The cap comprises a circular top 10 and a peripherally depending skirt comprising an upper skirt portion 1 and a lower skirt portion 2. Upper skirt portion 1 is provided with an internal thread for threaded engagement with the neck 3 of a bottle. Upper skirt portion 1 is integrally formed with top 10 by means for example of an injection or compression moulding process, from a relatively rigid plastics material. Security ring 2 is formed from a more flexible plastics material, e.g. polystyrene, polyethylene or polypropylene, by an injection moulding process, and is then attached to the lower margin of upper skirt portion 1 by a continuous web or a series of spaced bridges 6.
Formed integrally with the lower skirt portion 2 is an inwardly directed annular rib 5. This may alternatively comprise a series of circumferentially spaced fingers. It will be seen from Figure 1 that such web or fingers engages beneath an annular bead 4 on the container neck.
The cap is applied to the neck of the container by a simple screwing procedure. As the cap is screwed on to the container, the lower skirt portion 2 flares outwardly as the web or fingers 5 passes over the bead 4, and then reverts to size as the web or fingers 5 snap beneath the said bead.
Figure 1 shows the closure fully applied to the container. When the cap is rotated to unscrew it from the container, the engagement between the web/fingers 5 and the bead 4 causes the lower skirt portion 2 to remain on the container. The upper skirt portion 1 being removed axially from the container by an unscrewing motion, the bridges or web 6 breaks, thus allowing the upper part of the cap to be removed and the lower skirt portion to remain on the container neck.
In the embodiment shown in Figure 2 the lower skirt portion is provided with a split 7 parallel to the axis of the closure. Either side of this split then constitutes a tear-tab, which may be grasped and pulled, thus breaking the bridges 6 and separating the upper skirt portion of the cap from the lower skirt portion. The lower skirt portion of the cap of Figure 2 will have approximately the same configuration as the lower skirt portion 2 of Figure 1, whereby unscrewing of the cap is prevented until such time as the lower skirt portion is removed, by tearing in this case, from the upper skirt portion.
In accordance with a modification of the present invention there is provided a synthetic plastics cap for a container comprising a top and a peripherally depending skirt, the skirt comprising an upper skirt portion joined at its lower margin through a frangible connection to a lower skirt portion having means directed inwardly thereof for engaging an outwardly directed feature on the neck of the container, said engagement tending to resist axial movement of the lower skirt portion in a direction removing the cap from the container, the lower skirt portion being formed separately from the rest of the cap and thereafter attached thereto.
As with the main invention the upper and lower skirt portions of this modification are suitably joined through a thin annular web of material or by means of spaced frangible bridges. The inwardly directed feature may again be a continuous annular bead or a series of circumferentially arranged fingers adapted to bear against the underside of an annular bead formed on the container neck.
In contrast to the main invention, however, the upper and lower skirt portions may be made of similar plastics material although it is preferred that the upper skirt portion should be of a more rigid material than the lower portion. Thus, both parts of the cap are suitably made from polystyrene, e.g. unmodified polystyrene for the upper part and impact-modified polystyrene for the lower skirt portion. The lower portion may be made in a differently coloured material from the upper part.
In all aspects of the invention it is preferred that the inside diameter of the inwardly directed web or fingers on the lower skirt portion and the diameter of the crests of the thread formed on the upper skirt portion should be substantially the same, i.e. to within about 109/0.

Claims (13)

1. A cap for a container comprising a top and a peripherally depending skirt, the skirt comprising an upper skirt portion of relatively rigid plastics material joined at its lower margin to a lower skirt portion of relatively flexible plastics material, the lower skirt portion having means directed inwardly thereof for engaging an outwardly-directed feature on the neck of the container, said engagement tending to resist axial movement of the lower skirt portion in a direction removing the cap from the container.
2. A cap according to claim 1 wherein said inwardly-directed means comprises an annular flange directed towards the top of the cap.
3. A cap according to claim 1 wherein said inwardly-directed means comprises an annular series of spaced fingers each directed towards the top of the cap.
4. A cap according to claim 1, 2 or 3 wherein the upper skirt portion is formed from a thermosetting plastics material or a rigid or semirigid thermoplastics material.
5. A cap according to claim 4 wherein the upper skirt portion is formed from rigid or semirigid polystyrene, polyethylene or polypropylene.
6. A cap according to any of claims 1 to 5 in which the lower skirt portion is formed from impact-modified polystyrene.
7. A cap according to any of claims 1 to 6 in which the upper and lower skirt portions are joined together by welding.
8. A cap according to any of claims 1 to 7 in which the joint between the upper and lower skirt portions comprises an annular web of thermoplastics material or a series of spaced bridges of thermoplastics material.
9. A cap according to claim 8 wherein said annular web or said series of bridges is or are formed integrally with said lower skirt portion.
10. A cap according to any of claims 1 to 9 wherein the lower skirt portion provides or is provided with a tear-tab.
11. A synthetic plastics cap for a container comprising a top and a peripherally depending skirt, the skirt comprising an upper skirt portion joined at its lower margin through a frangible connection to a lower skirt portion having means directed inwardly thereof for engaging an outwardly-directed feature on the neck of the container, said engagement tending to resist axial movement of the lower skirt portion in a direction removing the cap from the container.
12. A cap according to claim 11 wherein the lower skirt portion is made separately from the rest of the cap and is thereafter attached thereto.
13. A cap for a container, substantially as described with reference to the drawings.
GB7843501A 1978-11-07 1978-11-07 Tamperproof closure Expired GB2033350B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7843501A GB2033350B (en) 1978-11-07 1978-11-07 Tamperproof closure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7843501A GB2033350B (en) 1978-11-07 1978-11-07 Tamperproof closure

Publications (2)

Publication Number Publication Date
GB2033350A true GB2033350A (en) 1980-05-21
GB2033350B GB2033350B (en) 1983-05-05

Family

ID=10500856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7843501A Expired GB2033350B (en) 1978-11-07 1978-11-07 Tamperproof closure

Country Status (1)

Country Link
GB (1) GB2033350B (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049876A1 (en) * 1980-10-11 1982-04-21 Deussen Kunststofftechnik Inhaber Heino Deussen Tamperproof screw closure
EP0072924A1 (en) * 1981-07-24 1983-03-02 H-C Industries, Inc. Plastic closure with mechanical pilfer band
US4394918A (en) * 1981-02-11 1983-07-26 Charles A. Breskin Assoc. Inc. Screw cap with tamper-proof hold ring
DE3206245A1 (en) * 1982-02-20 1983-09-01 Alcoa Deutschland Gmbh Verpackungswerke, 6520 Worms Construction kit for a cap-type closure
DE3227510A1 (en) * 1982-07-23 1984-01-26 Alcoa Deutschland Gmbh Verpackungswerke, 6520 Worms Module with a plastic ring for a closure cap, especially made of metal for containers with a threaded neck or undercuts
EP0111559A1 (en) * 1982-06-11 1984-06-27 Continental White Cap, Inc. Closure with tamper indicating band
US4497765A (en) * 1979-09-21 1985-02-05 H-C Industries, Inc. Process for making a closure
US4546892A (en) * 1982-04-23 1985-10-15 Cebal Plastic sealing screw cap with improved tamper-proof strip
FR2562875A1 (en) * 1984-04-13 1985-10-18 Joints Bouchons Stopper with tamper-evident ring
US4592475A (en) * 1982-12-06 1986-06-03 Charles N. Hannon Plastic closure with mechanical pilfer-proof
EP0201613A1 (en) * 1985-05-14 1986-11-20 Aci Australia Limited A closure for an open necked container
EP0213742A2 (en) * 1985-07-31 1987-03-11 Aci Australia Limited Tamper indicating closure member for containers
EP0224649A1 (en) * 1981-07-24 1987-06-10 H-C Industries, Inc. A plastic closure for a container
EP0229206A1 (en) * 1986-01-13 1987-07-22 Ewit S.A. Container closure with a tamper-indicating band
AU572572B2 (en) * 1983-10-27 1988-05-12 Continental White Cap, Inc. Closure with tamper indicating band
US4889249A (en) * 1988-06-30 1989-12-26 Hulon Walter C Urine bottle with cap
EP0381118A1 (en) * 1989-01-30 1990-08-08 H-C Industries, Inc. Tamper-indicating plastic closure
US4978016A (en) * 1989-09-01 1990-12-18 Anchor Hocking Corporation Tamper indicating closure having retaining hoop with relief windows
US5007545A (en) * 1990-03-15 1991-04-16 Seaquist Closures Removal resistant member
US5058755A (en) * 1989-09-01 1991-10-22 Anchor Hocking Packaging Company Tamper indicating closure having retaining hoop with relief windows
US5080246A (en) * 1989-09-01 1992-01-14 Anchor Hocking Packaging Company Closure having a spring open tamper evidencing band
WO1992003370A1 (en) * 1990-08-16 1992-03-05 Anchor Hocking Packaging Co. Press on, screw tight means for applying a closure
US5096079A (en) * 1989-12-08 1992-03-17 Astra Plastique Screw-on stopper cap, having a tamper-proof band
DE4340229A1 (en) * 1993-11-25 1995-06-14 Innocos Gmbh Closure cap for bottle neck with threaded bead
US5992661A (en) * 1997-04-14 1999-11-30 Zumbuhl; Bruno Tab construction for closures having tamper evident rings
US6085921A (en) * 1998-02-26 2000-07-11 Crown Cork & Seal Technologies Corporation Tamper evident band with undercut
US6253939B1 (en) 1999-01-04 2001-07-03 Crown Cork & Seal Technologies Corporation Tamper-evident closure having improved drainage
CH692697A5 (en) * 1998-07-03 2002-09-30 Tetra Laval Holdings & Finance Closure cap of plastic for aperture, has areas forming together at least one bending component, at least one sealing component, at least one clamping component and at least one covering component
US6877624B2 (en) * 2002-01-02 2005-04-12 Erie County Plastics Method of injection molding closure with continuous internal rigid rib, closure made thereby having a lead-in structure and mold for forming same
DE102013007192B3 (en) * 2013-04-25 2014-08-28 Gaplast Gmbh Tamper with tamper evidence

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497765A (en) * 1979-09-21 1985-02-05 H-C Industries, Inc. Process for making a closure
EP0049876A1 (en) * 1980-10-11 1982-04-21 Deussen Kunststofftechnik Inhaber Heino Deussen Tamperproof screw closure
US4394918A (en) * 1981-02-11 1983-07-26 Charles A. Breskin Assoc. Inc. Screw cap with tamper-proof hold ring
EP0224649A1 (en) * 1981-07-24 1987-06-10 H-C Industries, Inc. A plastic closure for a container
EP0072924A1 (en) * 1981-07-24 1983-03-02 H-C Industries, Inc. Plastic closure with mechanical pilfer band
DE3206245A1 (en) * 1982-02-20 1983-09-01 Alcoa Deutschland Gmbh Verpackungswerke, 6520 Worms Construction kit for a cap-type closure
US4546892A (en) * 1982-04-23 1985-10-15 Cebal Plastic sealing screw cap with improved tamper-proof strip
EP0111559A1 (en) * 1982-06-11 1984-06-27 Continental White Cap, Inc. Closure with tamper indicating band
EP0111559A4 (en) * 1982-06-11 1985-09-16 Continental White Cap Inc Closure with tamper indicating band.
DE3227510A1 (en) * 1982-07-23 1984-01-26 Alcoa Deutschland Gmbh Verpackungswerke, 6520 Worms Module with a plastic ring for a closure cap, especially made of metal for containers with a threaded neck or undercuts
US4592475A (en) * 1982-12-06 1986-06-03 Charles N. Hannon Plastic closure with mechanical pilfer-proof
AU572572B2 (en) * 1983-10-27 1988-05-12 Continental White Cap, Inc. Closure with tamper indicating band
FR2562875A1 (en) * 1984-04-13 1985-10-18 Joints Bouchons Stopper with tamper-evident ring
EP0201613A1 (en) * 1985-05-14 1986-11-20 Aci Australia Limited A closure for an open necked container
EP0213742A2 (en) * 1985-07-31 1987-03-11 Aci Australia Limited Tamper indicating closure member for containers
EP0213742A3 (en) * 1985-07-31 1987-09-16 Aci Australia Limited Tamper indicating closure member for containers
EP0229206A1 (en) * 1986-01-13 1987-07-22 Ewit S.A. Container closure with a tamper-indicating band
US4889249A (en) * 1988-06-30 1989-12-26 Hulon Walter C Urine bottle with cap
EP0381118A1 (en) * 1989-01-30 1990-08-08 H-C Industries, Inc. Tamper-indicating plastic closure
US5080246A (en) * 1989-09-01 1992-01-14 Anchor Hocking Packaging Company Closure having a spring open tamper evidencing band
US5058755A (en) * 1989-09-01 1991-10-22 Anchor Hocking Packaging Company Tamper indicating closure having retaining hoop with relief windows
US4978016A (en) * 1989-09-01 1990-12-18 Anchor Hocking Corporation Tamper indicating closure having retaining hoop with relief windows
US5096079A (en) * 1989-12-08 1992-03-17 Astra Plastique Screw-on stopper cap, having a tamper-proof band
US5007545A (en) * 1990-03-15 1991-04-16 Seaquist Closures Removal resistant member
WO1992003370A1 (en) * 1990-08-16 1992-03-05 Anchor Hocking Packaging Co. Press on, screw tight means for applying a closure
DE4340229A1 (en) * 1993-11-25 1995-06-14 Innocos Gmbh Closure cap for bottle neck with threaded bead
US5992661A (en) * 1997-04-14 1999-11-30 Zumbuhl; Bruno Tab construction for closures having tamper evident rings
US6085921A (en) * 1998-02-26 2000-07-11 Crown Cork & Seal Technologies Corporation Tamper evident band with undercut
CH692697A5 (en) * 1998-07-03 2002-09-30 Tetra Laval Holdings & Finance Closure cap of plastic for aperture, has areas forming together at least one bending component, at least one sealing component, at least one clamping component and at least one covering component
US6253939B1 (en) 1999-01-04 2001-07-03 Crown Cork & Seal Technologies Corporation Tamper-evident closure having improved drainage
US6877624B2 (en) * 2002-01-02 2005-04-12 Erie County Plastics Method of injection molding closure with continuous internal rigid rib, closure made thereby having a lead-in structure and mold for forming same
DE102013007192B3 (en) * 2013-04-25 2014-08-28 Gaplast Gmbh Tamper with tamper evidence

Also Published As

Publication number Publication date
GB2033350B (en) 1983-05-05

Similar Documents

Publication Publication Date Title
GB2033350A (en) Tamperproof closure
EP1710167B1 (en) Child-resistant closure and container package
CA2469907C (en) Composite closure having disk tightening feature
AU632025B2 (en) Tamper-indicating plastic closure
US6581792B1 (en) Closure cap
US5411157A (en) Container and the manufacture thereof
US5415306A (en) Foil lined snap-on, screw-off closure and container neck
US4938370A (en) Tamper-indicating plastic closure
EP0119055A2 (en) Improvements relating to closures
JPH0210024B2 (en)
EP0127943B1 (en) Tamper-resistant press-and-turn closure
EP1802534B1 (en) Child-resistant tamper-indicating package
US5503282A (en) Closure for pressurized container
WO1990006268A2 (en) Closure system with extendable tamper band bonded to container
WO2000034133A2 (en) Closure cap
US10689164B2 (en) Container with heat-sealed composite plastic and metal screw closure
US5242068A (en) Tamper-indicating plastic closure
EP1273524A2 (en) Closure cap
MXPA00000563A (en) Closure with extended seal member

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee