EP0366617B1 - Tamper-evident composite snap closure - Google Patents

Tamper-evident composite snap closure Download PDF

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Publication number
EP0366617B1
EP0366617B1 EP89830411A EP89830411A EP0366617B1 EP 0366617 B1 EP0366617 B1 EP 0366617B1 EP 89830411 A EP89830411 A EP 89830411A EP 89830411 A EP89830411 A EP 89830411A EP 0366617 B1 EP0366617 B1 EP 0366617B1
Authority
EP
European Patent Office
Prior art keywords
ring portion
container
ring
cap
projections
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.)
Expired - Lifetime
Application number
EP89830411A
Other languages
German (de)
French (fr)
Other versions
EP0366617A2 (en
EP0366617A3 (en
Inventor
Luigi Taragna
Massimo Galieti
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.)
CMB ITALCAPS TECHNOLOGY S.R.L.
Original Assignee
CMB ITALCAPS TECHNOLOGY Srl
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 CMB ITALCAPS TECHNOLOGY Srl filed Critical CMB ITALCAPS TECHNOLOGY Srl
Priority to AT89830411T priority Critical patent/ATE103877T1/en
Publication of EP0366617A2 publication Critical patent/EP0366617A2/en
Publication of EP0366617A3 publication Critical patent/EP0366617A3/en
Application granted granted Critical
Publication of EP0366617B1 publication Critical patent/EP0366617B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B65D41/46—Snap-on caps or cap-like covers
    • 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

Definitions

  • the present invention refers to a composite closure cap provided with a tamper evidencing band such as known from US-A-4.694.970.
  • the ring or skirt portion is provided with a threading, in order to thread fasten the composite cap to the container, and the opening of the packing is carried out by unscrewing the cap with respect to the container.
  • opening aids are described, which support and thus enable easier opening of a container which is closed by a conventional closure cap.
  • the main object of the present invention is to provide a composite closure cap with evidencing of the tampering, of the snap opening type, for a better opening of the container to which said cap is applied.
  • Another object of the present invention is to provide a composite cap with evidencing of the tampering, of the snap type, in which the tamper evidencing band is automatically taken apart from the skirt portion upon opening of the packing, and stays around the neck of the container as a proof that tampering of the package has been carried out.
  • Still another object of the present invention is to provide a composite cap with evidencing of the tampering, of the snap type, of simple and cheap construction, suitable for a mass production.
  • the main advantage which is achieved with the composite cap according to the present invention is the opening easiness due to the fact that the sticking of the threads is prevented.
  • Another advantage of the present composite cap lies in the easiness of application to the container, without the need that one is concerned about closure torques or sealing precautions.
  • a composite cap of the snap type comprises a plastic molded lateral ring or skirt portion 10, and a separated metal cover or panel portion 12.
  • the metal cover 12 is generally comprised of a stamped and sheared disk, with a sealing gasket 14, sprayed or of another kind.
  • the gasket 14 can be the usual gasket of sprayed plastisol or a cut disk, fastened to the edge or the whole surface of the cover 12.
  • the metal cover 12 is assembled in the upper portion of the plastic ring 10, in a housing delimited in its upper part by a continuous circumferential bead 16, which radially projects towards the inside of the plastic ring 10.
  • the housing for the metal cover 12 is also delimited in its lower part by a set of four shoulders 18, located at an equal distance along an internal circle on the plastic ring 10 and radially projecting towards the inside of the ring 10.
  • the housing for the metal cover takes up a shape elongated along the vertical cross-section of the figure 1, and in this housing there is inserted from the top end the metal cover 12, which is housed in a loose way so as to be able to carry out a certain translational motion with respect to the plastic ring 10, as it will be better explained in the following.
  • the circumferential edge 20 of the cover 12 is shaped so as to snap in its housing after having passed over the continuous circumferential bead 16 upon the assembling of the cap and then it can no longer leave its housing, making the cap handling operations easier.
  • the plastic ring 10 has four projections 22, located at an equal distance along an internal circle on the plastic ring 10, radially projecting towards the inside of the ring 10 and offset and alternated in the plan view, with respect to the shoulders 18, as it is better shown in figure 2.
  • the projections 22 on the plastic ring 10 are designed to cooperate with a corresponding continuous circumferential bead 24 of the container 26 in order to keep the cap fastened to the container so as to sealingly close said container.
  • the plastic ring 10 ends, at its lower part, in a tamper evidencing band 28, provided with a continuous circumferential tab 30, facing towards the inside of the cap.
  • the continuous circumferential tab 30 has a shape with a V-shaped vertical cross-section with respect to the band 28, as it is better shown in figure 1, and it is designed to engage the bead 24 of the container 26 when the cap is in its position of complete closure of container 26.
  • the tamper evidencing band 28 is connected to the plastic ring 10 by a set of bridges, which remain in place after an interrupted weakening groove has been carried out around the whole circumference of the ring 10 of the composite closure cap. Obviously, the bridges fasten the band 28 to the plastic ring 10 and are broken upon the opening of the packing.
  • a jut 32 is provided on the outer surface of the plastic ring 10, designed to be engaged by the thumb of the person who desires to open the packing. In fact, by acting on the jut 32, one can cause the projections 22 to jump over the bead 24 and therefore the composite cap to be disengaged from the container.
  • the continuous circumferential tab 30 is resilient enough to bend and then to snap, after having jumped over the bead 24 of the container 26, when the composite cap is applied to the container upon the closure of the packing, but, at the same time, having a continuous shape along its whole circumference, it provides the tampering evidencing band 28 with a stiffening feature, which allows it to certainly separate from the plastic ring 10 upon the removal of the cap to open the packing, when the continuous circumferential tab 30 remains locked under the bead 24.
  • the tamper evidencing band 28 is immediately torn away from the plastic ring 10, whereas the separate metal cover 12 remains in its place on the mouth of the container 26, since its circumferential edge 20 is not immediately engaged by the shoulders 18.

Landscapes

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

Abstract

There is described a composite closure cap in which a metal cover or panel portion (12) is inserted from the top end in a lateral ring or skirt portion (10), plastic molded and joined, at its opposite end, to a tampering evidencing band (28) by means of breakable bridges. The cap is characterized in that at least one jut (32), designed to be engaged by hand to open the packing, is provided on the outer surface of the ring portion, and locking means are circumferentially located on the inner surface of said ring portion to cooperate with a bead (24) of the container (26) to keep the packing sealed.

Description

  • The present invention refers to a composite closure cap provided with a tamper evidencing band such as known from US-A-4.694.970.
  • Generally, in caps of such a kind, the ring or skirt portion is provided with a threading, in order to thread fasten the composite cap to the container, and the opening of the packing is carried out by unscrewing the cap with respect to the container.
  • In GB-A-2.164.028 and EP-A-0.092.884, opening aids are described, which support and thus enable easier opening of a container which is closed by a conventional closure cap.
  • However, sometimes the opening can be difficult since a sticking action can happen on the locking means due to various reasons.
  • Therefore, the main object of the present invention is to provide a composite closure cap with evidencing of the tampering, of the snap opening type, for a better opening of the container to which said cap is applied.
  • Another object of the present invention is to provide a composite cap with evidencing of the tampering, of the snap type, in which the tamper evidencing band is automatically taken apart from the skirt portion upon opening of the packing, and stays around the neck of the container as a proof that tampering of the package has been carried out.
  • Still another object of the present invention is to provide a composite cap with evidencing of the tampering, of the snap type, of simple and cheap construction, suitable for a mass production.
  • The technical solution with regard to the above mentioned objects is set out in the characterising portion of claim 1.
  • The main advantage which is achieved with the composite cap according to the present invention is the opening easiness due to the fact that the sticking of the threads is prevented.
  • Another advantage of the present composite cap lies in the easiness of application to the container, without the need that one is worried about closure torques or sealing precautions.
  • In the following, the present invention will be further clarified from the description of one form of a practical embodiment of the composite closure cap of the snap type, with evidencing of the tampering, according to the present invention, the description being made with reference to the accompanying drawing, in which:
    • Figure 1 is a partial vertical cross-sectional view of a packing with a composite closure cap according to the present invention; and
    • Figure 2 is a cross-sectional view of the composite cap, taken on the line II-II of the figure 1.
  • With reference to the figures of the accompanying drawing, a composite cap of the snap type according to the present invention comprises a plastic molded lateral ring or skirt portion 10, and a separated metal cover or panel portion 12.
  • The metal cover 12 is generally comprised of a stamped and sheared disk, with a sealing gasket 14, sprayed or of another kind. The gasket 14 can be the usual gasket of sprayed plastisol or a cut disk, fastened to the edge or the whole surface of the cover 12.
  • The metal cover 12 is assembled in the upper portion of the plastic ring 10, in a housing delimited in its upper part by a continuous circumferential bead 16, which radially projects towards the inside of the plastic ring 10. The housing for the metal cover 12 is also delimited in its lower part by a set of four shoulders 18, located at an equal distance along an internal circle on the plastic ring 10 and radially projecting towards the inside of the ring 10.
  • Therefore, the housing for the metal cover takes up a shape elongated along the vertical cross-section of the figure 1, and in this housing there is inserted from the top end the metal cover 12, which is housed in a loose way so as to be able to carry out a certain translational motion with respect to the plastic ring 10, as it will be better explained in the following.
  • The circumferential edge 20 of the cover 12 is shaped so as to snap in its housing after having passed over the continuous circumferential bead 16 upon the assembling of the cap and then it can no longer leave its housing, making the cap handling operations easier.
  • The plastic ring 10 has four projections 22, located at an equal distance along an internal circle on the plastic ring 10, radially projecting towards the inside of the ring 10 and offset and alternated in the plan view, with respect to the shoulders 18, as it is better shown in figure 2. The projections 22 on the plastic ring 10 are designed to cooperate with a corresponding continuous circumferential bead 24 of the container 26 in order to keep the cap fastened to the container so as to sealingly close said container.
  • The plastic ring 10 ends, at its lower part, in a tamper evidencing band 28, provided with a continuous circumferential tab 30, facing towards the inside of the cap. The continuous circumferential tab 30 has a shape with a V-shaped vertical cross-section with respect to the band 28, as it is better shown in figure 1, and it is designed to engage the bead 24 of the container 26 when the cap is in its position of complete closure of container 26.
  • The tamper evidencing band 28 is connected to the plastic ring 10 by a set of bridges, which remain in place after an interrupted weakening groove has been carried out around the whole circumference of the ring 10 of the composite closure cap. Obviously, the bridges fasten the band 28 to the plastic ring 10 and are broken upon the opening of the packing.
  • To open the packing, a jut 32 is provided on the outer surface of the plastic ring 10, designed to be engaged by the thumb of the person who desires to open the packing. In fact, by acting on the jut 32, one can cause the projections 22 to jump over the bead 24 and therefore the composite cap to be disengaged from the container.
  • The continuous circumferential tab 30 is resilient enough to bend and then to snap, after having jumped over the bead 24 of the container 26, when the composite cap is applied to the container upon the closure of the packing, but, at the same time, having a continuous shape along its whole circumference, it provides the tampering evidencing band 28 with a stiffening feature, which allows it to certainly separate from the plastic ring 10 upon the removal of the cap to open the packing, when the continuous circumferential tab 30 remains locked under the bead 24.
  • This allows wide differences, due to the dimensional tolerances, to be absorbed both between the cap and the container, and in the manufacturing of the bead on the container.
  • Upon the opening of the packing, starting to remove the cap by means of the action of the thumb on the jut 32, the tamper evidencing band 28 is immediately torn away from the plastic ring 10, whereas the separate metal cover 12 remains in its place on the mouth of the container 26, since its circumferential edge 20 is not immediately engaged by the shoulders 18.
  • As it is clearly shown in figure 1, only after the ring 10 has been further lifted, the shoulder 18 that is located near the jut 32, engages the circumferential edge 20 of the metal cover 12 and lifts it from the mouth of the container 26 in one point only due to the resilience of the plastic ring 10. For all that, the vacuum is broken and the contents of the packing is put in communication with the external environment.
  • This behaviour of the composite cap during its removal provides a further guarantee that the tamper evidencing band is always torn away before the actual destroying of the sealing of the packing and not at the same time with it.

Claims (3)

  1. A composite closure cap in which a metal cover or panel portion (12) is inserted from the top end in a lateral ring or skirt portion (10), plastic molded and joined, at its opposite end, to a tamper evidencing band (28) by means of breakable bridges, locking means (22) being circumferentially located on the inner surface of said ring portion to cooperate with a bead (24) of the container (26) to keep said container sealed, a housing provided for the cover portion (12) being delimited by a continuous circumferential bead (16) in the upper part of said ring portion, and by shoulder portion (18) radially projecting towards the inside of said ring portion (10) in the lower part thereof, characterized in that said locking means is comprised of a number of projections (22), provided on a circle inside the plastic ring portion (10) and radially extending towards the inside of the ring portion (10), said projections (22) being four in number and being equally spaced along said circle inside the ring portion (10), said shoulder portion (18) comprises a number of four equally spaced shoulders provided along a circle inside said ring portion (10), said four shoulders and said four projections being offset and alternated with respect of each other in the plan view, and in that at least one jut (32), designed to be engaged by hand to open the container, is provided on the outer surface of the ring portion.
  2. A composite cap according to claim 1, characterized in that one of said shoulders is provided on the inner side of said ring portion (10) at a position at which said at least one jut (32) is provided on the outer side thereof.
  3. A composite cap according to claim 1, characterized in that one of said projections is provided on the inner side of said ring portion (10) at a position at which said at least one jut (32) is provided on the outer side thereof.
EP89830411A 1988-09-26 1989-09-25 Tamper-evident composite snap closure Expired - Lifetime EP0366617B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89830411T ATE103877T1 (en) 1988-09-26 1989-09-25 MULTIPLE ORIGINALITY SNAP CLOSURE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8848381A IT1224533B (en) 1988-09-26 1988-09-26 COMPOSITE CAP OF CLOSURE CLOSURE, WITH HIGHLIGHTS OF TAMPERING
IT4838188 1988-09-26

Publications (3)

Publication Number Publication Date
EP0366617A2 EP0366617A2 (en) 1990-05-02
EP0366617A3 EP0366617A3 (en) 1991-01-02
EP0366617B1 true EP0366617B1 (en) 1994-04-06

Family

ID=11266225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830411A Expired - Lifetime EP0366617B1 (en) 1988-09-26 1989-09-25 Tamper-evident composite snap closure

Country Status (5)

Country Link
EP (1) EP0366617B1 (en)
AT (1) ATE103877T1 (en)
DE (1) DE68914393T2 (en)
ES (1) ES2050841T3 (en)
IT (1) IT1224533B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2109097A1 (en) * 1991-05-01 1992-11-02 Thomas H. Hayes Press-on, pry-off closure
US5258191A (en) * 1991-05-01 1993-11-02 Anchor Hocking Corporation Vacuum-sealed food container having 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
FR2695105B1 (en) * 1992-08-28 1994-11-10 Safet Embamet Metallic packaging for siccative and adherent products, in particular paints and varnishes.
FR2715637B1 (en) * 1994-01-28 1996-04-12 Safet Embamet Improved metal container for siccative and adherent products, in particular paints or varnishes.
GB9722898D0 (en) * 1997-10-30 1998-01-07 Metal Box Plc Vacuum closures
ES2187341B1 (en) * 2001-02-28 2004-08-16 Saint-Gobain Calmar S.A. CAPSULE OF A DEVICE FOR THE CLOSURE OF A BOTTLE.
US8627970B2 (en) 2010-01-06 2014-01-14 Capitol Medical Devices, Inc. Closure with shield, stopper, and pusher, and method for making the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930589A (en) * 1973-09-07 1976-01-06 Anchor Hocking Corporation Pry-off closure cap
NL8201681A (en) * 1982-04-22 1983-11-16 Lindner Ind SEALING COVER FOR SEALING A HOLDER UNDER VACUUM (VACUUM SNAP CAP).
CH664744A5 (en) * 1984-09-05 1988-03-31 Asepta Ag CONTAINER WITH FLEXIBLE LID.
US4694970A (en) * 1986-06-16 1987-09-22 Anchor Hocking Corporation Tamper evident composite closure

Also Published As

Publication number Publication date
IT1224533B (en) 1990-10-04
EP0366617A2 (en) 1990-05-02
DE68914393D1 (en) 1994-05-11
EP0366617A3 (en) 1991-01-02
IT8848381A0 (en) 1988-09-26
ATE103877T1 (en) 1994-04-15
ES2050841T3 (en) 1994-06-01
DE68914393T2 (en) 1994-08-25

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