EP0323812A2 - Improvement in the composite closure caps with evidencing of the tampering - Google Patents

Improvement in the composite closure caps with evidencing of the tampering Download PDF

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Publication number
EP0323812A2
EP0323812A2 EP88830480A EP88830480A EP0323812A2 EP 0323812 A2 EP0323812 A2 EP 0323812A2 EP 88830480 A EP88830480 A EP 88830480A EP 88830480 A EP88830480 A EP 88830480A EP 0323812 A2 EP0323812 A2 EP 0323812A2
Authority
EP
European Patent Office
Prior art keywords
tampering
evidencing
cap
container
band
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.)
Ceased
Application number
EP88830480A
Other languages
German (de)
French (fr)
Other versions
EP0323812A3 (en
Inventor
Luigi Taragna
Franco Iacoboni
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.)
Italcaps SpA
Original Assignee
Italcaps SpA
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 Italcaps SpA filed Critical Italcaps SpA
Publication of EP0323812A2 publication Critical patent/EP0323812A2/en
Publication of EP0323812A3 publication Critical patent/EP0323812A3/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/14—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars
    • B65D51/145—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars by means of an additional element connected directly to the container
    • 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

Definitions

  • the present invention refers to an improvement in the composite caps with evidencing of the tampering, i.e. in particular in such caps, which have a plastic molded portion like a ring or skirt and a separate metal portion like a cover and are provided with a tampering evidencing band in order to immediately make recognizable any action whatsoever for tampering the packing to which said cap has been ap­plied, even before that the very opening of the packing has taken place.
  • a number of composite closure caps are available on the market, for sealing containers.
  • they comprise a plas­tic molded portion like a ring or skirt, which has a thread to fasten the composite cap to the container, and a metal cover or other top disk which is inserted into the upper portion of the ring to complete the cap.
  • the ring portion is shaped so as to receive the metal cover by insertion of the cover itself from the top end of the ring inside the ring itself, where it is accommodated in a suitably shaped groove.
  • a tampering evidencing band is provided under the plastic ring, provided with a circumferential set of clamping tabs facing towards the inside of the cap, i.e. towards the neck of the container.
  • the tampering evidencing band is secured to the plastic ring by means of a number of breakable bridges and the clamp­ing tabs make an engagement along a suitable projection of the neck of the container, upon the unscrewing of the cap, the breakable bridges are torn away and the tampering evidencing band is separated from the ring of the cap.
  • the above mentioned composite closure caps suffer from the drawback that, due to the manufacturing tolerances and irregular­ities of the neck of the container, generally made from glass, and of the plastic cap ring itself, the clamping tabs do not engage all in the same manner the projection of the neck of the container and the breakable bridges do not tear themselves all at the same time upon the opening of the packing.
  • the main object of the present invention is to pro­vide an improved composite closure cap.
  • Another object of the present invention is to improve in partic­ular the embodiment of its band for evidencing the tampering.
  • Still another object of the present invention is to improve the phase of breaking away the tampering evidencing band in a cap of the above cited type.
  • the composite cap for the closure of a container, with evidencing of the tampering, of the above described type is characterized in that it comprises in combi­nation a continuous circumferential bead located on the tampering evidencing band, facing towards the inside of the cap and designed to engage a rib provided on the neck of the container, and a housing of a lengthened shape to accommodate the metal cover portion.
  • the continuous circumferential bead has a V-shaped vertical cross section with respect to the tampering evidencing band.
  • the main advantage that is achieved by means of the improvement according to the present invention lies in the stiffening of the tampering evidencing band.
  • a further advantage lies in the fact that the tampering evidenc­ing band, so stiffened, is more easily separated from the plastic ring of the cap and does not cause opening drawbacks in the contain­ers.
  • an improved composite cap 10 for closing a container 12, comprises a plastic molded ring 14 and a separate metal cover 16.
  • the metal cover 16 is comprised of a pressed and blanked disk, with a gasket 18, of a sprayed or other kind.
  • the gasket 18 can be the usual gasket of sprayed plasti­ sol or a cut disk fastened to the edge or to the full surface of the cover 16.
  • the metal cover 16 is mounted on the upper portion of the plas­tic ring 14, in a housing having the shape of a lengthened groove 20. More exactly, it is inserted from the upper edge of the ring 14 and is pressed downwardly until its circumferential edge 22 snaps into the groove 20. The edge of the metal cover 16 is loosely accommodated inside the groove 20, so that the metal cover 16 can reciprocate for while with respect to the plastic ring 14, as it will be better explained in the following.
  • the circumferential edge 22 of the cover 16 is shaped so that it snaps into the groove 20 when the cap is assembled and afterwards it can no longer come out from the groove 20.
  • the plastic ring 14 has threads 24, which engage corresponding threads 26 on the container and terminates, at its lower end, in a band 28 for evidencing the tampering.
  • the tampering evidencing band 28 has a continuous circumferen­tial bead 30, facing towards the inside of the cap.
  • the continuous circumferential bead 30 has a shape like a tab with a V-shaped verti­cal cross-section with respect to the band 28, as it is better shown in figure 2, and it is designed to engage a rib 32 provided on the neck of the container 12 when the cap 10 is in the position of complete closure of the container 12.
  • the rib 32 has a highly sloped upper surface and an almost horizontal lower surface, and this in order to make it easier for the continuous circumferential bead 30 to pass over the rib 32 upon the closure of the container.
  • the tampering evidencing band 28 is connected to the plastic ring 14 by means of a set of bridges 34, which remain in place after an interrupted weakening groove 36 has been carried out around the whole circumference of the ring 14 of the closure cap. Obviously, the bridges 34 fasten the band 28 to the ring 14 of the cap and are broken upon the opening of the container.
  • the continuous circumferential tab or bead 30 is resilient enough to bend and then to snap after having been pressed over the threads 26 and the rib 32 of the container, when the composite cap 10 is applied to the container 12 upon the closure of the container, but, at the same time, with its projection tab 30, continuous along all its circumference, it provides the tampering evidencing band 28 with a stiffening feature, which allows it to certainly separate from the plastic ring 14 upon the unscrewing of the cap for opening the container 12, when the continuous circumferential tab remains locked under the rib 32.

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

Abstract

There is described a composite cap (10) for the closure of a container (12), with evidencing of the tampering, in which a plastic molded portion like a threaded ring (14) has a housing to accommodate a metal cover portion (16) provided with a sealing gasket (18) and is joined, at its lower edge, to a tampering evidencing (28) band by means of a set of breakable bridges. The composite cap (10) is characterized in that the tampering evidencing band (28) is provided with a continuous circumferential bead (30), facing toward the inside of the cap and designed to engage a rib (32) provided on the neck of the container, whereas the housing has a lengthened shape.
Preferably, the continuous circumferential bead (30) has a V-shaped vertical cross-section with respect to the tampering evidencing band.

Description

  • The present invention refers to an improvement in the composite caps with evidencing of the tampering, i.e. in particular in such caps, which have a plastic molded portion like a ring or skirt and a separate metal portion like a cover and are provided with a tampering evidencing band in order to immediately make recognizable any action whatsoever for tampering the packing to which said cap has been ap­plied, even before that the very opening of the packing has taken place.
  • At present, a number of composite closure caps are available on the market, for sealing containers. Generally, they comprise a plas­tic molded portion like a ring or skirt, which has a thread to fasten the composite cap to the container, and a metal cover or other top disk which is inserted into the upper portion of the ring to complete the cap.
  • In order to facilitate the removal of the die, the ring portion is shaped so as to receive the metal cover by insertion of the cover itself from the top end of the ring inside the ring itself, where it is accommodated in a suitably shaped groove.
  • Furthermore, recently, to the composite closure caps of the above quoted kind, comprised of a plastic ring and a metal cover, there are added tampering indicating or evidencing members, at the bottom portion of the molded skirts, in the form of projections, or clamping tabs, or fishhooks.
  • In other words, a tampering evidencing band is provided under the plastic ring, provided with a circumferential set of clamping tabs facing towards the inside of the cap, i.e. towards the neck of the container. As the tampering evidencing band is secured to the plastic ring by means of a number of breakable bridges and the clamp­ing tabs make an engagement along a suitable projection of the neck of the container, upon the unscrewing of the cap, the breakable bridges are torn away and the tampering evidencing band is separated from the ring of the cap. This provides a clear evidence that one person has made an attempt to open the container, even before the metal cover is really separated from the mouth of the container.
  • However, the above mentioned composite closure caps suffer from the drawback that, due to the manufacturing tolerances and irregular­ities of the neck of the container, generally made from glass, and of the plastic cap ring itself, the clamping tabs do not engage all in the same manner the projection of the neck of the container and the breakable bridges do not tear themselves all at the same time upon the opening of the packing.
  • Even due to the flexibility of the tampering evidencing band, this fact sometimes causes disadvantages during the opening of the cap, such as the jamming of the cap itself in a partially open position and the removal of the tampering evidencing band along with the plastic ring of the cap, in case any of the breakable bridges succeed in remaining unbroken.
  • Therefore, the main object of the present invention is to pro­vide an improved composite closure cap.
  • Another object of the present invention is to improve in partic­ular the embodiment of its band for evidencing the tampering.
  • Still another object of the present invention is to improve the phase of breaking away the tampering evidencing band in a cap of the above cited type.
  • According to the present invention, the composite cap for the closure of a container, with evidencing of the tampering, of the above described type, is characterized in that it comprises in combi­nation a continuous circumferential bead located on the tampering evidencing band, facing towards the inside of the cap and designed to engage a rib provided on the neck of the container, and a housing of a lengthened shape to accommodate the metal cover portion.
  • Preferably, the continuous circumferential bead has a V-shaped vertical cross section with respect to the tampering evidencing band.
  • The main advantage that is achieved by means of the improvement according to the present invention lies in the stiffening of the tampering evidencing band.
  • A further advantage lies in the fact that the tampering evidenc­ing band, so stiffened, is more easily separated from the plastic ring of the cap and does not cause opening drawbacks in the contain­ers.
  • In the following, the present invention will be further clari­fied from the description of one form of practical embodiment of the improved composite closure cap with evidencing of the tampering according to the present invention, the description being made in a purely illustrative and not limiting way, with reference to the accompanying drawing, in which:
    • Figure 1 is a perspective view of an improved closure cap ac­cording to the present invention;
    • Figure 2 is a partial vertical cross-section view of the closure cap of the figure 1; and
    • Figure 3 is a bottom plan view of the cap of figures 1 and 2.
  • With reference to the figures of the accompanying drawing, an improved composite cap 10 according to the present invention, for closing a container 12, comprises a plastic molded ring 14 and a separate metal cover 16. Generally, the metal cover 16 is comprised of a pressed and blanked disk, with a gasket 18, of a sprayed or other kind. The gasket 18 can be the usual gasket of sprayed plasti­ sol or a cut disk fastened to the edge or to the full surface of the cover 16.
  • The metal cover 16 is mounted on the upper portion of the plas­tic ring 14, in a housing having the shape of a lengthened groove 20. More exactly, it is inserted from the upper edge of the ring 14 and is pressed downwardly until its circumferential edge 22 snaps into the groove 20. The edge of the metal cover 16 is loosely accommodated inside the groove 20, so that the metal cover 16 can reciprocate for while with respect to the plastic ring 14, as it will be better explained in the following.
  • The circumferential edge 22 of the cover 16 is shaped so that it snaps into the groove 20 when the cap is assembled and afterwards it can no longer come out from the groove 20.
  • The plastic ring 14 has threads 24, which engage corresponding threads 26 on the container and terminates, at its lower end, in a band 28 for evidencing the tampering.
  • The tampering evidencing band 28 has a continuous circumferen­tial bead 30, facing towards the inside of the cap. The continuous circumferential bead 30 has a shape like a tab with a V-shaped verti­cal cross-section with respect to the band 28, as it is better shown in figure 2, and it is designed to engage a rib 32 provided on the neck of the container 12 when the cap 10 is in the position of complete closure of the container 12.
  • As it is better shown in figure 2, the rib 32 has a highly sloped upper surface and an almost horizontal lower surface, and this in order to make it easier for the continuous circumferential bead 30 to pass over the rib 32 upon the closure of the container.
  • The tampering evidencing band 28 is connected to the plastic ring 14 by means of a set of bridges 34, which remain in place after an interrupted weakening groove 36 has been carried out around the whole circumference of the ring 14 of the closure cap. Obviously, the bridges 34 fasten the band 28 to the ring 14 of the cap and are broken upon the opening of the container.
  • The continuous circumferential tab or bead 30 is resilient enough to bend and then to snap after having been pressed over the threads 26 and the rib 32 of the container, when the composite cap 10 is applied to the container 12 upon the closure of the container, but, at the same time, with its projection tab 30, continuous along all its circumference, it provides the tampering evidencing band 28 with a stiffening feature, which allows it to certainly separate from the plastic ring 14 upon the unscrewing of the cap for opening the container 12, when the continuous circumferential tab remains locked under the rib 32.
  • This allows wide differences, due to the dimentional tolerances, to be absorbed both between the cap and the container, and in the manufacturing of the rib on the container.
  • It is to be noted that, when a packing is opened, starting to unscrew the cap, the tampering evidencing band 28 is immediately torn away from the plastic ring 14, whereas the separate metal cover 16 remains in its place on the mouth of the container 12, since its circumferential edge 22 is not immediately engaged by the lower surface of the groove 20. As it is clearly shown in figure 2, only after the composite cap 10 has been further rotated, the lower surface of the groove 20 engages the circumferential edge 22 of the separate metal cover 16 and lifts it from the mouth of the container 12, putting the contents of the packing in communication with the external environment. This provides a further guarantee that the tampering evidencing band is always torn away before the actual destroying of the sealing of the packing and not at the same time with it.
  • It is obvious that other numerous and different changes and modifications can be performed by those skilled in the art on the above described embodiment of the present invention, without depart­ing from its scope. It is intended therefore that all these changes and modifications are encompassed in the field of the invention.

Claims (4)

1. A composite cap for closing a container, with evidencing of the tampering, in which a plastic molded portion like a threaded ring has a housing to accommodate a metal cover portion provided with a sealing gasket and is joined, at its lower edge, to a tampering evidencing band by means of a set of breakable bridges, a cap which is characterized in that it comprises in combination:
a continuous circumferential bead, located onto said tampering evidencing band, facing towards the inside of the cap and designed to engage a rib provided on the neck of the container, and
a housing having a lengthened shape for accommodating said metal cover portion.
2. A composite cap according to claim 1, characterized in that said continuous circumferential bead has a V-shaped vertical cross-­section with respect to the tampering evidencing band.
3. A composite cap according to claim 1 or 2, characterized in that said rib provided on the neck of the container and engaged by said continuous circumferential bead has a highly sloped upper surface and an almost horizontal lower surface.
4. A composite cap according to any one of the preceding claims, characterized in that said housing of a lengthened shape for accommo­dating the metal cover portion allows a reciprocating movement of the cover portion with respect to the ring portion.
EP88830480A 1987-11-10 1988-11-08 Improvement in the composite closure caps with evidencing of the tampering Ceased EP0323812A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8748598A IT1211905B (en) 1987-11-10 1987-11-10 IMPROVEMENT IN COMPOSITE CLOSING CAPSULES WITH HIGHLIGHTS OF TAMPERING
IT4859887 1987-11-10

Publications (2)

Publication Number Publication Date
EP0323812A2 true EP0323812A2 (en) 1989-07-12
EP0323812A3 EP0323812A3 (en) 1990-01-10

Family

ID=11267548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88830480A Ceased EP0323812A3 (en) 1987-11-10 1988-11-08 Improvement in the composite closure caps with evidencing of the tampering

Country Status (2)

Country Link
EP (1) EP0323812A3 (en)
IT (1) IT1211905B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650565A1 (en) * 1989-08-07 1991-02-08 Ferembal Sa HERMETIC CLOSURE DEVICE OF A CONTAINER AND CONTAINER COMPRISING THE SAME
EP0427686A1 (en) * 1989-11-06 1991-05-15 ITALCAPS S.p.A. Screw-type closure cap with a yielding thread
FR2659065A1 (en) * 1990-03-02 1991-09-06 Barre Rene Tamper-evident screw cap device for bottle or similar
WO1991017093A1 (en) * 1990-05-07 1991-11-14 Anchor Hocking Corporation A composite closure, disk and package
DE4125468C1 (en) * 1991-08-01 1993-01-28 Gaplast Gmbh, 8111 Saulgrub, De
EP0541466A1 (en) * 1991-11-08 1993-05-12 Astra Plastique Plastic screw cap with anti tamper band
US5258191A (en) * 1991-05-01 1993-11-02 Anchor Hocking Corporation Vacuum-sealed food container having press-on, pry-off closure
US5341949A (en) * 1991-05-01 1994-08-30 Anchor Hocking Packaging Co. Press-on pry-off closure
US5443853A (en) * 1991-05-01 1995-08-22 Anchor Hocking Packaging Co. Press-on, pry-off closure for microwavable vacuum sealed container
EP1728727A2 (en) 2005-05-31 2006-12-06 Hosokawa Yoko Co., Ltd. Sealing mechanism for container opening
EP4257504A1 (en) * 2022-04-05 2023-10-11 Schoeller Allibert GmbH Container with a screw closure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154467A2 (en) * 1984-02-24 1985-09-11 Continental White Cap, Inc. Location of bridges on tamper band style closure
FR2563500A1 (en) * 1984-04-26 1985-10-31 Astra Plastique CONTAINER TO BE DISPOSED OF AFTER USE AND INTENDED MORE PARTICULARLY FOR INFANT FEEDING
EP0201613A1 (en) * 1985-05-14 1986-11-20 Aci Australia Limited A closure for an open necked container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154467A2 (en) * 1984-02-24 1985-09-11 Continental White Cap, Inc. Location of bridges on tamper band style closure
FR2563500A1 (en) * 1984-04-26 1985-10-31 Astra Plastique CONTAINER TO BE DISPOSED OF AFTER USE AND INTENDED MORE PARTICULARLY FOR INFANT FEEDING
EP0201613A1 (en) * 1985-05-14 1986-11-20 Aci Australia Limited A closure for an open necked container

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650565A1 (en) * 1989-08-07 1991-02-08 Ferembal Sa HERMETIC CLOSURE DEVICE OF A CONTAINER AND CONTAINER COMPRISING THE SAME
EP0412876A1 (en) * 1989-08-07 1991-02-13 Ferembal Seal locking device for a container and container using it
EP0427686A1 (en) * 1989-11-06 1991-05-15 ITALCAPS S.p.A. Screw-type closure cap with a yielding thread
FR2659065A1 (en) * 1990-03-02 1991-09-06 Barre Rene Tamper-evident screw cap device for bottle or similar
WO1991017093A1 (en) * 1990-05-07 1991-11-14 Anchor Hocking Corporation A composite closure, disk and package
US5258191A (en) * 1991-05-01 1993-11-02 Anchor Hocking Corporation Vacuum-sealed food container having press-on, pry-off closure
US5341949A (en) * 1991-05-01 1994-08-30 Anchor Hocking Packaging Co. Press-on pry-off closure
AU660614B2 (en) * 1991-05-01 1995-07-06 Anchor Hocking Packaging Company Press-on, pry-off closure
US5443853A (en) * 1991-05-01 1995-08-22 Anchor Hocking Packaging Co. Press-on, pry-off closure for microwavable vacuum sealed container
DE4125468C1 (en) * 1991-08-01 1993-01-28 Gaplast Gmbh, 8111 Saulgrub, De
EP0541466A1 (en) * 1991-11-08 1993-05-12 Astra Plastique Plastic screw cap with anti tamper band
FR2683509A1 (en) * 1991-11-08 1993-05-14 Astra Plastique SCREW CAP, IN SYNTHETIC MATERIAL, EQUIPPED WITH AN INVIOLABILITY RING.
EP1728727A2 (en) 2005-05-31 2006-12-06 Hosokawa Yoko Co., Ltd. Sealing mechanism for container opening
EP1728727A3 (en) * 2005-05-31 2007-02-07 Hosokawa Yoko Co., Ltd. Sealing mechanism for container opening
US8757410B2 (en) 2005-05-31 2014-06-24 Hosokawa Yoko Co., Ltd. Sealing mechanism for a cylindrical container opening using a cap having a cap body and an upper lid
EP4257504A1 (en) * 2022-04-05 2023-10-11 Schoeller Allibert GmbH Container with a screw closure

Also Published As

Publication number Publication date
EP0323812A3 (en) 1990-01-10
IT8748598A0 (en) 1987-11-10
IT1211905B (en) 1989-11-08

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