EP0909720A1 - Closure plug with gasket - Google Patents

Closure plug with gasket Download PDF

Info

Publication number
EP0909720A1
EP0909720A1 EP98105210A EP98105210A EP0909720A1 EP 0909720 A1 EP0909720 A1 EP 0909720A1 EP 98105210 A EP98105210 A EP 98105210A EP 98105210 A EP98105210 A EP 98105210A EP 0909720 A1 EP0909720 A1 EP 0909720A1
Authority
EP
European Patent Office
Prior art keywords
capsule
clutch
plug
interposed
top surface
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.)
Withdrawn
Application number
EP98105210A
Other languages
German (de)
English (en)
French (fr)
Inventor
Egidio Mezzadra
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.)
ALUCAPVIT SpA
Original Assignee
ALUCAPVIT 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 ALUCAPVIT SpA filed Critical ALUCAPVIT SpA
Publication of EP0909720A1 publication Critical patent/EP0909720A1/en
Withdrawn legal-status Critical Current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
    • B65D41/02—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
    • B65D41/045—Discs
    • 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs

Definitions

  • the invention relates to a plug for containers, particularly intended for food, comprising a shell in the form of a capsule or cap, made of a material unfit for contact with foodstuffs, provided with means for clamping it on the mouth of the container, and with an element interposed between the opening area of the mouth and the corresponding stop wall of the capsule, i.e. the inner side of its top surface.
  • Capsules of this type are currently known in the art. In order to ensure that the means for clamping the capsule to the container are provided with a sufficient strength and mechanical stiffness, advantages are obtained through making said capsules from a material, particularly from a plastic material, whose use is not allowed for contact with foodstuffs.
  • interposed disks which are superposed between the inner side of the capsule top surface, and the mouth area of the container, contacting the said inner side, and being closed by said capsule top surface.
  • the interposed disk is made from a material, especially from a plastic material fit for contact with foodstuffs.
  • the disk Besides having the function to separate the parts of the plug being made of the material unfit for contact with foodstuffs, from the mouth area and from contact with the foodstuff, the disk generally has an additional sealing function.
  • Prior art plugs of this type show a serious drawback in that, during the manufacturing process, an incomplete insertion of the interposed disk may occur, thus involving considerable inconveniences and problems during production and packaging.
  • the disk often remains on the mouth of the container, either for a suction effect, or due to small deposits of the product, which may remain between the opposite contact surfaces of the disk and of the mouth of the container.
  • the invention has the object to provide a plug of the type described hereinbefore, in such a way that, by means of a simple and cheap construction, the above listed drawbacks of prior art plugs may be effectively obviated.
  • the invention achieves the above objects, by providing the separating element and the plastic capsule of a plug of the type described hereinbefore with cooperating and complementary means for mutual attachment.
  • Said means may be of any type, and may provide either a time-resisting attachment, or an attachment resisting at least to a predetermined minimum detaching or separating force.
  • said mutual attachment means may consist of force-fitting means which make use of the elastic deformability of the material.
  • One embodiment provides the use of a clutch member, with transverse couplers, and of a clutch seat with undercut housings for said transverse couplers. Either of these two elements may be provided on either part respectively, or more elements may be provided on either part, i.e. on the inner side of the top surface of the capsule, and on the opposite side of the interposed member.
  • the clutch member and/or the clutch seat may be the one elastically compressible, and the other elastically expandable, to enable the transverse couplers to be clutched in the coupler seats.
  • the transverse couplers and the clutch seats may have cooperating draft surfaces for facilitating the interposed element to be clutched into the attachment position at the top surface of the capsule.
  • the transverse couplers and the clutch seats may be appropriately rounded.
  • an interposed element in the form of a disk having a surface arranged to cover the whole inner side of the capsule top surface, also circular, whereas there are provided a single clutch member and a single complementary clutch seat, respectively associated to the capsule top surface and to the opposite side of the interposed element or vice versa, which are coaxial with respect to the capsule top surface and to the interposed element.
  • the clutch element and the clutch seat also have a circular symmetry.
  • a coaxial appendix projects towards the mouth of the container, and may be substantially spherical or cylindrical, with an outer radial annular peripheral ledge, whereas the clutch seat is on the interposed element, on the side facing the capsule top surface and has a bush- or cup-like shape, whose inner profile is complementary to that of the clutch appendix respectively, i.e. spherical or cylindrical with a radial annular expansion.
  • the clutch seat and the clutch appendix of the type described above may have continuous walls or consist of one-piece bodies, or may consist of at least one tongue a pair of tongues or a crown of tongues, arranged in a predetermined pattern, and possibly separated by notches, gaps or slots.
  • the means for mutual snap attachment between the interposed element and the capsule may also be made in a different manner, there being provided transverse coupling expansions on the inner walls of the clutch seats, whereas the corresponding coupler seats are provided in the form of niches, sags or recesses in the outer surface of the clutch members.
  • the interposed element is firmly fixed to the capsule top surface and firmly held in position, both during production and packaging of the product, and on its use by consumers.
  • a screw plug for containers is formed by a capsule 1 having a cylindrical cap-like shape.
  • the capsule 1 consists of an outer shell 101, which is particularly made of metal, for example aluminum, or similar, and of an inner shell 201, which is made of a different material, particularly of a plastic material unfit or unusable with foodstuffs.
  • the inner shell 201 has an inner thread 301, which is complementary to that formed on the mouth of the container, whereas, on the top part, it terminates with a niche 401.
  • the niche 401 is closed, at its top, by the top surface of the inner shell 201 of the capsule, which has a circular shape.
  • a coaxial clutch appendix 2 which projects towards the open side of the capsule 1.
  • the clutch appendix 2 having a cylindrical symmetry with respect to the axis of the capsule 1, has radial expansions for coupling to lateral expansions 103 of a clutch seat 3, protruding out of the opposite side of an interposed disk 4.
  • the interposed disk 4 is made of a plastic material, whose usage is fit and allowed in contact with food, such as polyethylene, or similar.
  • the radial extension of the interposed disk 4 is such, that the latter wholly superposes the inner side of the top surface 501 of the inner shell 201 of the capsule 1, and at least partially, preferably entirely, the peripheral lateral wall of the niche 401.
  • the peripheral edge 104 of the interposed disk 4 may be appropriately shaped, as indicated in the figure, by at least partially folding it so as to have it superposed to the lateral wall of the niche 401, or this deformation may be made by the edge around the opening of the container, while it is clamped on its mouth.
  • the clutch seat 3 is placed coaxially, in a sag 204 of the interposed disk 4, so as to allow for a sufficient axial extension of the clutch appendix 2 and of the clutch seat 3.
  • This sag is preferably formed by deforming the interposed disk 4 and, on the side opposite to the clutch seat 3, it forms a protrusion 304.
  • the sag 204 which is provided with a truncated cone shape, helps, together with the folded peripheral edge 104, to provide the interposed disk 4 with a certain structural stiffness, and possibly with a certain elasticity, having the function to cushion and absorb the forces which tend to hold it against the bottle mouth, so as to reduce the effect thereof, directly on the clutch appendix and on the clutch seat 2, 3.
  • the clutch appendix has a spherical shape, having an angle greater than 180°, or substantially spherical, and so has the clutch seat. Both the clutch appendix and the clutch seat, or either of them, is formed by a one-piece body. Alternatively, the clutch seat and/or the clutch appendix may be made in the form of at least two pairs of diametrically opposite tongues or of a crown of tongues or other elements.
  • the clutch seat 3 and the clutch appendix 2 are substantially cylindrical, and have respective complementary radial annular expansions, inside the former 103 and outside the latter 102.
  • the appendix and the clutch seat may be either made of one-piece bodies or of groups or crowns of tongues, or similar.
  • both embodiments may be varied, in that the clutch seat 3 and the clutch appendix 2 may be also placed the former on the disk and the latter on the inner shell 201 of the capsule. Moreover, the coupling expansions 102 and recesses 103 may be also alternatively provided on the clutch seat 3, and on the coupling appendix 2, contrary to what has been described.
  • the interposed disk 4 and the inner shell 201 of the capsule 1 may have more than one clutch appendix and more than one complementary clutch seat, arranged in different patterns and also with different constructions.
  • the invention is not limited to the above disclosure and illustrations but may be greatly varied, particularly as regards construction to models reaching an equal utility and having the same guiding principle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP98105210A 1997-10-15 1998-03-23 Closure plug with gasket Withdrawn EP0909720A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITSV970007 IT243535Y1 (it) 1997-10-15 1997-10-15 Tappo per contenitori, in particolare per alimenti.
ITSV970007U 1997-10-15

Publications (1)

Publication Number Publication Date
EP0909720A1 true EP0909720A1 (en) 1999-04-21

Family

ID=11408201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98105210A Withdrawn EP0909720A1 (en) 1997-10-15 1998-03-23 Closure plug with gasket

Country Status (2)

Country Link
EP (1) EP0909720A1 (it)
IT (1) IT243535Y1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2520510A1 (de) * 2011-05-04 2012-11-07 G. Junghans Kunststoffwaren-Fabrik Siegelfolienverschluss sowie Deckel zum Verschliessen der Öffnungsmündung eines Behältnisses

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE547660A (it) *
US3189209A (en) * 1963-05-21 1965-06-15 Thatcher Glass Mfg Company Inc Closure for containers
DE9214073U1 (de) * 1992-10-09 1992-12-17 Hertrampf, Michael, Dr., 3007 Gehrden Verschluß für eine Flasche o.dgl.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE547660A (it) *
US3189209A (en) * 1963-05-21 1965-06-15 Thatcher Glass Mfg Company Inc Closure for containers
DE9214073U1 (de) * 1992-10-09 1992-12-17 Hertrampf, Michael, Dr., 3007 Gehrden Verschluß für eine Flasche o.dgl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2520510A1 (de) * 2011-05-04 2012-11-07 G. Junghans Kunststoffwaren-Fabrik Siegelfolienverschluss sowie Deckel zum Verschliessen der Öffnungsmündung eines Behältnisses

Also Published As

Publication number Publication date
ITSV970007U1 (it) 1999-04-15
IT243535Y1 (it) 2002-03-05
ITSV970007V0 (it) 1997-10-15

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