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EP0092884B1 - Couvercle pour fermer un récipient sous vide - Google Patents

Couvercle pour fermer un récipient sous vide Download PDF

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Publication number
EP0092884B1
EP0092884B1 EP83200583A EP83200583A EP0092884B1 EP 0092884 B1 EP0092884 B1 EP 0092884B1 EP 83200583 A EP83200583 A EP 83200583A EP 83200583 A EP83200583 A EP 83200583A EP 0092884 B1 EP0092884 B1 EP 0092884B1
Authority
EP
European Patent Office
Prior art keywords
skirt
tear
tab
closure cap
container
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
Application number
EP83200583A
Other languages
German (de)
English (en)
Other versions
EP0092884A1 (fr
Inventor
Jacques Adriaan De Wijn
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.)
LINDNER INDUSTRIE BV
Original Assignee
LINDNER INDUSTRIE BV
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 LINDNER INDUSTRIE BV filed Critical LINDNER INDUSTRIE BV
Publication of EP0092884A1 publication Critical patent/EP0092884A1/fr
Application granted granted Critical
Publication of EP0092884B1 publication Critical patent/EP0092884B1/fr
Expired 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

Definitions

  • This invention relates to a closure cap for closing a container under vacuum, said container provided with two beads, the first one being located at the container rim and the second one spaced apart from the first one on the neck of said container, the closure cap comprising a circular closing disc having a flanged edge, a sealing compound provided therein, and a sealing ring of synthetic plastics material having an L-shaped cross-section, and including an edge directed radially inwardly and forming an abutment for the circular closing disc and a substantially cylindrical skirt enclosing the flanged edge of the circular closing disc, said skirt having on its inside radially inwardly directed projections adapted to engage underneath the first bead of the container to be sealed, and the sealing ring being further provided with a guaranty construction, to render the closure cap tamper proof.
  • a cap of this type which is sometimes referred to as a vacuum snap cap, is disclosed in Dutch patent application 7407362 (corresponding to GB-A-1 446 388).
  • the guaranty construction is formed by a tear-off guaranty ring provided at the bottom of the skirt, which ring is fitted with a pull tab projecting radially outwardly of the cap, and with which the cap can be opened without any tool being required.
  • the tear-off guaranty ring forms an extension of the skirt of the sealing ring and is in circumferential sealing contact with the outer surface of the second bead of said container.
  • the radially projecting pull tab impedes the automatic supply of sealing rings via a sealing-ring hopper, since sealing rings thus designed continually become jammed in the hopper. It is true that after the guaranty ring has been torn off, the cap can be reused for closing containers, but is not suitable for re-closing jars, i.e. containers provided with a double thickened edge, as those which are usually employed for the vacuum preservation of foodstuffs. In order to get, after re-closing, a closure which is insect- infection-proof, the lower edge of the skirt in such containers or jars should be in sealing contact with the second bead of the container.
  • the invention provides a cap in which the guaranty construction comprises a tiltable tear-off tab disposed within the overall height of the skirt of the sealing ring, which tear-off tab is connected to the skirt by means of two tear lines extending in axial direction of the skirt, said sealing ring adjacent the tear-off tab is made double-walled, with an outer wall being formed by the tear-off tab itself and an inner wall constituting a continuous extension of the lower edge of the skirt, said lower edge being designed to be in circumferential sealing contact with the outer surface of the second bead of said container.
  • the lower edge of the skirt outside the tear-off tab is preferably bevelled inwardly. In this manner there is no proper grip on the cap except at the tear-off tab.
  • the tear-off tab extends radially slightly beyond the peripheral edge of the skirt and is provided at the bottom with a nail edge.
  • the wall thickness of the skirt at said tab is thinner than the rest of the skirt.
  • the sealing ring 1 (see Figs. 1-5) has an L-shaped cross-section, the one leg of which is formed by the skirt 4, substantially of cylindrical shape and the other leg by the radially inwardly extending edge 3, forming an abutment for a closing disc 18 usually made of metal (see Figs. 6-7).
  • a tear-off tab 2 which is connected through tear lines to the wall of the skirt 4.
  • the tear lines 6 extend only along a part of the height h of the sealing ring.
  • the wall thickness 7 of the skirt 4 is thinner, so that the tear-off tab 2 is adapted for tilting movement, as will be explained in the following.
  • the lower edge 5 of the skirt 4 is bevelled inwardly in order to thus reduce the grip on the cap beside the tear-off tab 2.
  • projections 8 are provided on the inside of the skirt wall. These projections 8 have a triangular cross-section and are adapted to engage underneath an outwardly thickened edge of a container to be sealed.
  • Fig. 5 shows the construction of the sealing ring 1 at the position of the tear-off tab 2 on an enlarged scale.
  • the top face 23 of the sealing ring 1 is stepped to cause the thrust face 24 of the edge 3 to be off-set axially towards the centre plane through the skirt 4.
  • a chamber 9 which serves as a mechanical buffer for absorbing shocks on the edge, so that the risk of vacuum leaks is substantially reduced.
  • wall 7 is thinner than the normal wall thickness of the skirt, the difference in thickness being indicated by reference numeral 10.
  • the top side of the tear-off tab 2 has a bevelled face 14, so that when a force F is exerted on the tear-off tab 2, said tab will tilt about the tilting line 11, until the bevelled face 14 comes to abut against the thinned wall portion 7.
  • the tear lines 6 through which the tear-off tab 2 is connected to the skirt 4 are broken. Accordingly it can be verified whether a container closed by means of a snap cap according to the invention is actually remained closed.
  • a recess 13 designed as a nail edge in order to provide a better grip on the tear-off tab 2. Adjacent to the tear-off tab 2 to the skirt 4 is double-walled.
  • the inner wall 12 is, in axial direction, a continuous extension of the thinned wall 7 and in circumferential direction a continuous extension of the wall of the skirt 4.
  • Figs. 6-7 show the snap cap according to the invention disposed on a jar-type container to be sealed.
  • the jar has a glass wall 15 with two thickened rims respectively designated by numerals 16 and 17.
  • the snap cap comprises a disc 18 usually of metal, and profiled for strengthening.
  • the closing disc 18 is provided with a flange 19, and a sealing compound 20 is provided at the inner side of the closing disc 18, to provide a vacuum-tight seal on the upper rim 16 of the glass wall 15.
  • the closing disc 18 is pressed on the wall (15) of the jar by means of the sealing ring 1, whereby the radially inwardly directed edge 3 comes to lie in contact with the closing disc 18, while the inwardly directed projections 8 engage underneath the upper thickened rim 16 of the glass wall 15.
  • the upper edge of the sealing ring 1 is stepped to form a buffer space 9.
  • the bevelled lower edge 5 should, at 25, be in sealing contact with the outer wall of the thickened rim 17.
  • the space 22 must remain sealed and this can be achieved by means of the double-walled form of the skirt 4 of the sealing ring, as shown in Fig. 7.
  • the inner wall 12 is in surface-to-surface contact with the outer.wall of the thickened rim 17, so that even after the tilting of the tear-off tab 2 a sealing of the space 22 is achieved at the edge 21.

Landscapes

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

Claims (4)

1. Une capsule de fermeture pour fermer un récipient sous vide, ledit récipient ayant deux chapelets, le premier 16 étant placé au rebord du récipient et le second 17 espacé du premier sur le col dudit récipient, la capsule de fermeture comprenant un disque de fermeture circulaire 18 ayant un bord à brides 19, un composé d'étanchéité 20 prévu là-dedans, et un anneau d'étanchéité 1 en matière plastique synthétique ayant une second transversale en forme de L, et comprenant un bord 3 orienté radialement vers l'entérieur, formant une butée pour le disque de fermeture circulaire 18 et une bordure substantiellement cylindrique 4 entourant le bord à brides 19 du disque de fermeture circulaire 18, ladite bordure 4 ayant sur son intérieur des projections 8 orientées radialement vers l'intérieur ménagées à se mettre en prise avec le dessous du premier chapelet 16 du récipient à sceller, l'anneau d'étancheiité 1 étant également muni d'une construction de garantie pour rendre la capsule de fermeture inviolable, caractérisée en ce que la construction de garantie comprend une patte d'affaiblissement 2 inclinable disposée dans la hauteur totale h de la bordure 4 de l'anneau d'étanchéité 1, laquelle patte d'afaiblissement 2 est connectée à la bordure 4 à l'aide de deux lignes d'affaiblissement 6 s'étendant en direction axiale de la bordure 4, ledit anneau d'étanchéité 1 voisin de la patte d'affaiblissement 2 étant à double paroi, avec une paroi extérieure formée par la patte d'affaiblissement 2 et une paroi intérieure 12 constituant une extension continue du bord inférieur 5 de la bordure 4, ledit bord inférieur 5 étant ménagé à être en contact d'étanchéité circonférentiel avec la surface extérieure du second chapelet 17 dudit récipient.
2. Une capsule de fermeture selon la revendication 1, caractérisée en ce que le bord inférieur 5 de la bordure 4 à l'extérieur de la patte d'affaiblissement 2 est un biseau vers l'intérieur.
3. Une capsule de fermeture selon la revendication 1 ou 2, caractérisée en ce que la patte d'affaiblissement 2 s'étend radialement légèrement ou delà de la paroi périphérique de la bordure 4 et est munie au fond d'un bord d'ongle 13.
4. Une capsule de fermeture selon la revendication 1, 2 ou 3, caractérisée en ce que la paroi 7 de la bordure 4 est plus mince près de la patte d'affaiblissement 2.
EP83200583A 1982-04-22 1983-04-20 Couvercle pour fermer un récipient sous vide Expired EP0092884B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8201681A NL8201681A (nl) 1982-04-22 1982-04-22 Afsluitdeksel voor het onder vacuuem afsluiten van een houder (vacuuem snap cap).
NL8201681 1982-04-22

Publications (2)

Publication Number Publication Date
EP0092884A1 EP0092884A1 (fr) 1983-11-02
EP0092884B1 true EP0092884B1 (fr) 1986-09-03

Family

ID=19839635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83200583A Expired EP0092884B1 (fr) 1982-04-22 1983-04-20 Couvercle pour fermer un récipient sous vide

Country Status (5)

Country Link
EP (1) EP0092884B1 (fr)
JP (1) JPS58193265A (fr)
AU (1) AU564151B2 (fr)
DE (1) DE3365805D1 (fr)
NL (1) NL8201681A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8733576B2 (en) 2002-06-11 2014-05-27 Crown Packaging Technology, Inc. Easily openable can lid having a movable portion for pull tab access
US9387959B2 (en) 2008-03-20 2016-07-12 Crown Packaging Technology, Inc. Closure
EP3292855A1 (fr) * 2016-08-30 2018-03-14 B. Braun Avitum AG Capuchon de fermeture pour un contenant en forme de cartouche

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201613A1 (fr) * 1985-05-14 1986-11-20 Aci Australia Limited Capuchon pour un récipient à goulot ouvert
US4664288A (en) * 1986-04-28 1987-05-12 Clairol Incorporated Pressure venting closure cap for a container spout
IT1224533B (it) * 1988-09-26 1990-10-04 Italcaps Spa Capsula composita di chiusura a scatto, con evidenziazione della manomissione
FR2718714B1 (fr) * 1994-04-15 1996-07-19 Rical Sa Capsule à vis pour le bouchage du goulot d'un récipient.
GB9606378D0 (en) 1996-03-26 1996-06-05 Metal Box Plc Composite closures for containers
EP1918041A1 (fr) 2006-10-31 2008-05-07 Crown Packaging Technology, Inc Fermeture métallique et procédé de fabrication d'une telle fermeture métallique avec disque et bague séparés à partir d'une seule ébauche de fermeture

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB369494A (en) * 1931-07-08 1932-03-24 Samuel Davison Young Improvements in or relating to closures for bottles and other containers
GB1000164A (en) * 1963-05-10 1965-08-04 Metal Closures Ltd Improvements in closure seals

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES305802A1 (es) * 1964-01-25 1965-03-16 Angelo Guala Di Angelo Guala & C Perfeccionamientos en los dispositivos de cierre para botellas y similares.
FR1513468A (fr) * 1966-12-30 1968-02-16 Perfectionnements au montage et au bouchage des bidons et autres récipients à goulot rapporté
SE329786B (fr) * 1969-03-12 1970-10-19 R Winberg
NL7400941A (fr) * 1973-01-26 1974-07-30
US3913771A (en) * 1973-06-01 1975-10-21 Anchor Hocking Corp Closure cap with tamper indicator
US4066181A (en) * 1976-03-16 1978-01-03 Buckeye Molding Company Container and closure assembly
GB2082151A (en) * 1980-08-19 1982-03-03 Mardon Illingworth Tamperproof cap for a keg spear

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB369494A (en) * 1931-07-08 1932-03-24 Samuel Davison Young Improvements in or relating to closures for bottles and other containers
GB1000164A (en) * 1963-05-10 1965-08-04 Metal Closures Ltd Improvements in closure seals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8733576B2 (en) 2002-06-11 2014-05-27 Crown Packaging Technology, Inc. Easily openable can lid having a movable portion for pull tab access
US9387959B2 (en) 2008-03-20 2016-07-12 Crown Packaging Technology, Inc. Closure
EP3292855A1 (fr) * 2016-08-30 2018-03-14 B. Braun Avitum AG Capuchon de fermeture pour un contenant en forme de cartouche

Also Published As

Publication number Publication date
NL8201681A (nl) 1983-11-16
DE3365805D1 (en) 1986-10-09
AU1384683A (en) 1983-10-27
JPS58193265A (ja) 1983-11-10
AU564151B2 (en) 1987-08-06
EP0092884A1 (fr) 1983-11-02

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