EP0045274A1 - Fermeture hermétique pour récipients - Google Patents

Fermeture hermétique pour récipients Download PDF

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Publication number
EP0045274A1
EP0045274A1 EP81710033A EP81710033A EP0045274A1 EP 0045274 A1 EP0045274 A1 EP 0045274A1 EP 81710033 A EP81710033 A EP 81710033A EP 81710033 A EP81710033 A EP 81710033A EP 0045274 A1 EP0045274 A1 EP 0045274A1
Authority
EP
European Patent Office
Prior art keywords
edge
closure according
membrane
ring
support
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
EP81710033A
Other languages
German (de)
English (en)
Other versions
EP0045274B1 (fr
Inventor
Helmut Grüner
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19808020280 external-priority patent/DE8020280U1/de
Priority claimed from DE19818111728 external-priority patent/DE8111728U1/de
Application filed by Individual filed Critical Individual
Priority to AT81710033T priority Critical patent/ATE19613T1/de
Publication of EP0045274A1 publication Critical patent/EP0045274A1/fr
Application granted granted Critical
Publication of EP0045274B1 publication Critical patent/EP0045274B1/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
    • 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
    • B65D41/22—Caps or cap-like covers with elastic parts adapted to be stretched over the container

Definitions

  • the invention relates to an airtight closure for vessels which have an opening delimited by an approximately flat edge.
  • a cover plate which can be placed on the edge of the opening to be closed and which projects beyond the edge and which, at least in its area which can be placed on the opening edge, consists of soft sealing material which automatically adapts to the edge-side contact surface and in which the sealing material to be closed Opening spanning area can be deflected from its initial position against an elastic springback force.
  • the cover plate according to the invention only rests on the edge of the vessel to be closed, without interacting positively with it, all vessels can be operated with it, the opening diameter of which is not greater than the diameter of the cover plate, which is advantageous results in universal applicability for different vessel sizes or configurations and designs.
  • Another very special advantage of the measures according to the invention can be seen in the fact that the container sealed with the closure according to the invention is practically partially evacuated, which can have a highly positive effect on the freshness and preservation effect.
  • a particularly advantageous embodiment of the superordinate measures can consist in the fact that the cover plate has an annular body which is fanned out by a membrane, which is preferably attached to it with slight pretension and is made of rubber-elastic material.
  • odorless synthetic rubber can preferably be used to form the membrane.
  • the membrane used here also has the properties of a soft sealing material and the desired elastic springback properties, which results in a particularly simple design. This also ensures that the membrane can be easily and simply deflected strongly from its initial position, which enables a high vacuum to be achieved and thus an excellent holding force and an excellent preservation can be expected.
  • a further advantageous embodiment of the superordinate measures can consist in that the membrane consists of transparent material. This measure advantageously enables a simple tightness check of the contents of the vessel.
  • the ring body can have a support ring and a clamping ring encompassing it, between which the edge of the membrane can be clamped.
  • the clamping ring can expediently be designed as an annular spring, which can particularly facilitate assembly and disassembly.
  • the cover plate has a true-to-shape, elastically deformable carrier, on which an edge support made of soft, compressible material, preferably made of foam rubber, is fixed, the outer surface of which at least in the area covering the opening to be closed is impermeable to air.
  • the shape-retaining carrier gives the lid a high level of stability and thus a comparatively high load-bearing capacity, which advantageously enables a plurality of vessels provided with a closure according to the invention to be stacked.
  • the edge support ensures a clean, exact adaptation to unevenness in the opening edge.
  • the use of foam rubber to form the edge support has proven to be particularly expedient, since on the one hand this material has sufficient rigidity and on the other hand nevertheless ensures that the opening edge can sink comparatively deep.
  • the edge support can be designed as a cover that takes up the entire support-side support surface. This ensures that the entire surface of the cover plate according to the invention is available as a cover, so that there is great versatility with regard to the size or configuration of the vessel to be closed.
  • the closure shown in Figure 1 consists of an annular body 1, which is fanned out by a membrane 2.
  • the ring body 1 can be designed as a one-piece ring to which the membrane 2 is molded or glued or welded.
  • a two-part ring body is used, which consists of an inner Support ring 3 and a clamping ring 4 comprising this.
  • the membrane 2 is in this case formed by a section of a material web and is clamped with its edge 5 between the support ring 3 and the tension ring 4.
  • the support ring 3 is provided in the region of the end face which is filled out by the membrane 2 with an outwardly directed edge offset 6 which engages behind the edge 5 of the membrane 2 and thus relieves the clamping connection. At the same time, the clamping ring 4 is thereby secured in its position.
  • the support ring 1 is also provided in the region of its opposite end face with an outwardly bent edge, which practically results in a positive locking of the support ring 4.
  • the ring body 1 or its support ring 3 and clamping ring 4 can simply be designed as plastic moldings, the supporting ring 3 being dimensionally stable and the clamping ring 4 preferably being of resilient design.
  • the membrane 2 should consist of an odor-free, synthetic rubber, this material ensures an excellent elasticity, so that the membrane 2 springs back automatically and at the same time a full contact is ensured at the edge of the vessel to be closed, even if this edge has slight unevenness , which can occur, for example, with cans opened by means of a can opener. In addition, complete freedom from pores is ensured, so that the partial vacuum generated in the container to be sealed remains unchanged even over a long period of time will hold. It is also ensured that such a membrane does not accept the smell of the container contents, nor does it give off its own odor to the latter.
  • the membrane 2 formed by a section of a sheet-like material is to be made of transparent material, so that this practically results in a viewing window.
  • the closure shown in Figure 2 consists of a soft, acting as a seal edge support 11 and this receiving, rigid support 12.
  • the support 12 is simply formed by a plastic disc, which consists of true-to-shape, elastically deformable material that automatically deforms into its Springs back.
  • the edge pad 11 consists of a soft, compressible material which can compensate for unevenness in the edge delimiting the opening to be closed.
  • the edge support 11 is formed in two layers.
  • the lower layer 13 on the carrier side is made of foam rubber. This material ensures the desired resilience.
  • the foam rubber layer 13 is laminated in the area of its outer surface surrounding the opening to be covered with a rubber or plastic film 14, which results in the desired air impermeability.
  • it would also be readily conceivable to mold the air-impermeable outer layer onto the foam rubber layer for example in such a way that the material foamed into foam rubber is not foamed in the region of the desired air-impermeable outer layer.
  • the edge support 11 can be annular.
  • the edge support 11 is designed as a cover that covers the entire support-side support surface. This advantageously results in very simple handling, since it is not necessary to ensure that the edge support actually comes into contact with the edge of the opening to be closed. Rather, this results practically automatically when the closure is placed on this edge. In addition, this advantageously ensures that the foam rubber layer 13 does not require a coating in the region of its radial edge and can therefore simply be punched out of sheet-like material in an advantageous manner.
  • the closure according to the invention as a one-piece plastic molding such that a material is used which is foamed in its interior roughly according to the structure of foam rubber and the upper and lower top surfaces of which are not foamed.
  • the thicknesses of the non-foamed cover surfaces can expediently be selected so that the desired support is obtained on the one hand and the desired air-impermeable lamination results on the other hand.
  • the closure according to the invention is simply placed with the membrane 2 or the edge support 11 on the edge of the vessel 7, indicated by its outline, and simply pushed slightly towards the interior of the vessel with the area spanning the edge of the vessel, as indicated in Figure 1 at 2a or in Figure 2 at 12a is.
  • an amount of air corresponding to the curvature of the membrane 2 is displaced from the container contents.
  • an amount of air corresponding to the curvature of the carrier 12 and the flexibility of the edge support 11 is displaced from the interior of the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP81710033A 1980-07-29 1981-07-24 Fermeture hermétique pour récipients Expired EP0045274B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81710033T ATE19613T1 (de) 1980-07-29 1981-07-24 Luftdichter verschluss fuer gefaesse.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19808020280 DE8020280U1 (de) 1980-07-29 1980-07-29 Luftdichter Gefaessverschluss
DE8020280U 1980-07-29
DE19818111728 DE8111728U1 (de) 1981-04-18 1981-04-18 Luftdichter Gefaessverschluss
DE8111728U 1981-04-18

Publications (2)

Publication Number Publication Date
EP0045274A1 true EP0045274A1 (fr) 1982-02-03
EP0045274B1 EP0045274B1 (fr) 1986-05-07

Family

ID=25948697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81710033A Expired EP0045274B1 (fr) 1980-07-29 1981-07-24 Fermeture hermétique pour récipients

Country Status (2)

Country Link
EP (1) EP0045274B1 (fr)
DE (1) DE3174557D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002386A1 (fr) * 1992-07-24 1994-02-03 Environ Products, Inc. Couvercle de puisard
GB2429200A (en) * 2005-08-15 2007-02-21 Peter George Morrison A reusable cover for a vessel
JP2010500235A (ja) * 2006-08-05 2010-01-07 ゼット． カイ、エドワード 腐敗しやすい製品を密閉するための真空生成装置および使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9023445B2 (en) 2011-10-14 2015-05-05 Kellogg North America Company Composite containers for storing perishable products

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH23525A (de) * 1900-12-29 1902-08-15 Johann Kroog Verschlußvorrichtung für vollständig mit Flüssigkeit gefüllte Flaschen und andere Gefäße
US3901405A (en) * 1974-02-04 1975-08-26 Robert B Norberg Hermetic closure member

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH23525A (de) * 1900-12-29 1902-08-15 Johann Kroog Verschlußvorrichtung für vollständig mit Flüssigkeit gefüllte Flaschen und andere Gefäße
US3901405A (en) * 1974-02-04 1975-08-26 Robert B Norberg Hermetic closure member

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002386A1 (fr) * 1992-07-24 1994-02-03 Environ Products, Inc. Couvercle de puisard
GB2429200A (en) * 2005-08-15 2007-02-21 Peter George Morrison A reusable cover for a vessel
JP2010500235A (ja) * 2006-08-05 2010-01-07 ゼット． カイ、エドワード 腐敗しやすい製品を密閉するための真空生成装置および使用方法
JP2012140187A (ja) * 2006-08-05 2012-07-26 Edward Z Cai 腐敗しやすい製品を密閉するための真空生成装置および使用方法

Also Published As

Publication number Publication date
EP0045274B1 (fr) 1986-05-07
DE3174557D1 (en) 1986-06-12

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