EP1588956B1 - Récipient pour produit liquide - Google Patents

Récipient pour produit liquide Download PDF

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Publication number
EP1588956B1
EP1588956B1 EP20040011935 EP04011935A EP1588956B1 EP 1588956 B1 EP1588956 B1 EP 1588956B1 EP 20040011935 EP20040011935 EP 20040011935 EP 04011935 A EP04011935 A EP 04011935A EP 1588956 B1 EP1588956 B1 EP 1588956B1
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EP
European Patent Office
Prior art keywords
liquid
storage container
opening
canister
gas
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
EP20040011935
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German (de)
English (en)
Other versions
EP1588956A1 (fr
Inventor
Gerold Franz Keil
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.)
Chemische Fabrik Dr Weigert GmbH and Co
Original Assignee
Chemische Fabrik Dr Weigert GmbH and Co
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
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Application filed by Chemische Fabrik Dr Weigert GmbH and Co filed Critical Chemische Fabrik Dr Weigert GmbH and Co
Priority to EP20040011935 priority Critical patent/EP1588956B1/fr
Publication of EP1588956A1 publication Critical patent/EP1588956A1/fr
Application granted granted Critical
Publication of EP1588956B1 publication Critical patent/EP1588956B1/fr
Anticipated expiration legal-status Critical
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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
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
    • B65D51/1616—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a filter

Definitions

  • the invention relates to a reservoir for a liquid having a removal opening, which is arranged in the operating position of the container above the liquid level and having a receptacle for a fluid coupling, and having a withdrawal line which extends from the removal opening into the liquid reservoir.
  • consumer fluids are often provided in storage containers such as canisters or drums.
  • storage containers such as canisters or drums.
  • commercial machine cleaning of dishes or medical instruments and apparatus often uses liquid detergents that are provided in larger containers such as canisters.
  • the dishwasher has a metering pump and an associated suction line or lances, which is inserted into the canister.
  • US-A-2003/038147 discloses a reservoir in which a suction line from the discharge opening into the canister extends, which can be connected to a Jerusalem frequency coupling. If a sealed removal opening is to be connected to a fluid coupling, first unscrew a screw cap and then remove a cap. In this condition, the canister is "vulnerable” to repelling. Subsequently, the fluid coupling is screwed on.
  • a designed as a gas-impermeable membrane closure is off EP-A-0 587 412 known.
  • the invention has for its object to provide a reservoir of the type mentioned, which is more versatile and is also suitable for cleaning or disinfecting medical instruments frequently used liquids.
  • the invention solves this problem in that the removal opening has a liquid-tight disposable closure according to claim 1 with a gas-permeable region.
  • Storage containers for liquids are any disposable or reusable containers in which a certain liquid for removal by means of a pump or other removal devices can be provided at or near the place of use.
  • it can be canisters, barrels or the like.
  • removal opening that opening is designated by the intended use of liquid can be removed.
  • the removal opening may (optionally in one piece) be formed in a wall of the canister, in a preferred embodiment of the invention, however, it is arranged in a separate closure device for the canister, as further described below.
  • the removal opening is arranged in the operating position of the container above the liquid level. This means that in the usual container position or optionally in at least one of several conventional container positions (for example in the case of a standing drum or canister), this removal opening is located above the liquid level of the liquid in the container.
  • a withdrawal line extends into the liquid reservoir.
  • this extraction line extends to or into the vicinity of the lowest point of the container in which there is still liquid, so that a complete or at least substantial emptying of the container is possible by aspirating the container contents through removal line and removal opening.
  • the removal opening is in fluid communication with a receptacle for a fluid coupling.
  • "Intake for a fluid coupling” means that a corresponding fluid coupling, such as in a auf deciden cover, can be used as a counterpart in this first fluid coupling in use, so that then a removal of liquid through the sampling line, the removal opening, the Fluid coupling and arranged thereon another external suction line is possible.
  • the terms fluid coupling and the associated receptacle as a counterpart are to be understood functionally and include any means that enable a reliable fluid connection between the extraction port and the extraction line on the one hand and the connected suction line on the other.
  • a one-way closure is a closure device that becomes unusable after being opened or removed once for closure.
  • the one-way closure may be formed in the form of a film which closes the removal opening of a storage container.
  • Liquid-tight means that this one-way closure has a sufficient liquid-tightness during handling of the canister, so that, for example, liquid does not leak out or only to a slight extent when a filled canister falls over.
  • the liquid-tight disposable closure is usually not the only closure for storage and transportation purposes.
  • an additional closure of the removal opening for example a conventional screw cap
  • the one-way closure according to the invention is usually only an additional safeguard against spilling the contents in already removed cover and the handling of the canister, for example, to set up the fluid coupling.
  • the liquid-tight disposable closure according to the invention has a gas-permeable region.
  • This gas permeable area serves the purpose of storage and allow the transport of outgassing liquids in a reservoir according to the invention.
  • Such outgassing liquids may be, for example, peroxide-containing liquids which are frequently used in the medical field for cleaning or disinfection and which often emit oxygen during storage and transport with the decomposition of the peroxide.
  • the escaping gas can escape through the gas-permeable region of the one-way closure. If an additional cover is provided, this also has a gas outlet opening, which can communicate with the gas-permeable region of the one-way closure.
  • the one-way closure is destroyed, a film is pierced by the liquid coupling.
  • the gas-permeable region is preferably formed as an opening in the film, which is closed with a liquid-tight and gas-permeable material. It may in particular be a nonwoven that can easily pass through the low outgassing without causing an impermissible pressure in the canister. On the other hand, it is sufficiently dense woven or knitted to liquid not or at most to pass in small drops. Suitable nonwovens are, for example, woven or knitted fabrics made of synthetic fibers, which are gas-permeable, but not permeable to liquid. Such materials are known to the person skilled in the art. For example. are suitable as nonwovens PTFE membranes under the name Gore-Tex® available.
  • the connection between the fleece and the film takes place for example by gluing or welding.
  • the film is preferably a composite film of aluminum or an aluminum alloy and a thermoplastic material, for example polyethylene.
  • the nonwovens may also comprise or be coated with a thermoplastic material.
  • the web is then overlapped onto the opening in the film and the overlapping edges are welded together by application of heat.
  • the welding or bonding can be made weaker in an edge region (for example by a narrower region in which bonding or welding takes place), so that when the film is pierced with the liquid coupling in the area of the nonwoven, this weakened connection region represents a predetermined breaking point.
  • the fleece will first come loose from the film at this predetermined breaking point and thus release the opening for the fluid coupling through defined folding away.
  • the film may tear in the region of this compound. This embodiment avoids that during the piercing, the fleece or parts thereof hang or adhere to the leading end of the fluid coupling and are pressed into the receptacle, so that no tight fluid connection between fluid coupling and recording comes about.
  • the area of the fluid coupling which penetrates the film and the gas-permeable fleece is preferably designed so as to ensure that in each case an air gap remains in the inserted state of the fluid coupling between the latter and the rest of the film.
  • the opening in the cover film is preferably arranged axially aligned with the receptacle for the fluid coupling.
  • Axially aligned means that the opening is located on the axis which connects the fluid coupling and the associated receptacle for the fluid coupling in the mounting direction. Since the cover usually closes a circular opening, accordingly, the opening is usually arranged centrally on the cover. This has the advantage that when the liquid coupling is placed for the first time, the covering film can be pierced in the region of the opening and thus at its weak point.
  • the receptacle for the fluid coupling is preferably arranged in an insert which can be inserted into the removal opening.
  • a conventional and known in the art canister, a barrel or the like is filled in a known manner with liquid.
  • the insert is inserted into the filling opening with removal line arranged thereon, for example, by means of a positive or frictional engagement, and the removal opening is additionally closed by a screw cap or the like.
  • the user unscrews this screw cap again. If the canister falls by careless handling with unscrewed Cover around, the content can not escape due to the one-way closure.
  • the fluid coupling is inserted into the corresponding receptacle, while or before the disposable closure is destroyed.
  • the canister contents can be taken out clean. If the canister is empty, it will be disconnected from the fluid coupling and a new canister connected. If it is a Mehrwergkanister, the insert with the removal line disposed thereon is removed only when refilling and optionally refilled after cleaning the container.
  • the insert overhangs the edge of the removal opening of the canister.
  • the one-way closure (preferably the film) is then arranged on the overhanging edge of the insert.
  • This variant makes it possible to prefabricate the insert with one-way closure and insert it into a completely filled canister.
  • the insert additionally has a ventilation opening in order, on the one hand, to enable the outgassing and, on the other hand, to allow the subsequent flow of air in accordance with the removal of the contents of the container.
  • the insert is pressed into the removal opening, the edge of the insert is flush with the edge of the removal opening.
  • the sealing film is applied.
  • This is preferably a composite foil of aluminum or an aluminum alloy and a thermoplastic material, for example polyethylene.
  • the PE layer of the composite film is welded to the canister edge and merges with both this canister edge and with the flush adjoining edge of the insert This weld fixes the insert additionally in the removal opening of the canister and provides additional protection against accidental kicking the insert in the canister when placing a fluid coupling.
  • the procedure is preferably as follows:
  • the canister is first filled and the insert with the withdrawal tube is inserted into the removal opening of the canister. Then a transport cover is screwed on.
  • a multi-layer disc is used. In particular, form-tightly clamped.
  • This disc has a cardboard disc to which an aluminum foil adheres by means of wax. On the side facing the canister opening, this aluminum foil is again provided with a PE coating.
  • the entire area is heated by means of an induction heat sealer.
  • the PE coating of the aluminum foil welded to the plastic both the edge of the removal opening and the edge of the canister insert.
  • the wax which binds the cardboard and aluminum foil, melts and is drawn into the cardboard by capillary forces. When removing the transport cover for the first time, therefore, the cardboard no longer adheres to the aluminum foil and remains trapped in the transport cover.
  • the area of the gas-permeable area is significantly smaller than the total area of the cover film. It is preferably smaller by at least the factors 10, 50, 100, 500 or 1000 than the total area of the film.
  • This film may in particular be an aluminum foil.
  • the invention further provides a lid for the removal opening of a storage container according to the invention, which has a liquid coupling connected to a suction line, which occurs during the placement of the lid in fluid communication with the receptacle for the fluid coupling.
  • a device which destroys the liquid-tight disposable closure when first placed on the removal opening may be a corresponding pointed or otherwise sharp-edged leading tip of the fluid coupling.
  • This lid according to the invention preferably has a ventilation opening in order to allow outgassing or air outflow during emptying of the container.
  • the insert 2 has a receptacle 3 for a fluid coupling, which is formed substantially cylindrical. It continues into the canister 1 into a withdrawal tube 5, which extends to the lowest point of the canister. In the insert 2, a ventilation opening 4 is also arranged.
  • the cover film according to the invention is marked with 6, in it is a cylindrical opening 7, which is closed with a non-illustrated in the drawing PTFE fleece (Gore-Tex®).
  • the disposable closure 6 (aluminum foil with a Gore-Tex insert) seals the canister in a liquid-tight manner. If the canister falls over with the transport cover removed or the like, liquid may run into the insert, but leakage from the canister is prevented by the disposable closure 6. By contrast, the canister contents can outgas through the ventilation opening 4 and the fleece 7 in the covering film 6.
  • a lid 8 For the purpose of removing liquid, a lid 8 according to the invention is screwed on.
  • the sharp-edged at the leading tip formed liquid coupling 9 pierces the cover 6 and engages liquid-tight in the receptacle 3 of the insert 2 (see Fig. 2 ).
  • the canister content can now be removed by means of a pump not shown in the drawing.
  • a region of the fluid coupling 9 is enclosed by the pierced residues of the cover 6.
  • the covering film 6 In order to allow access of air into the canister (through the ventilation opening 4), the covering film 6 must not enclose this area of the fluid coupling 9 in an airtight manner.
  • the fluid coupling 9 in the said areas of the outer surface for example, have one or more notches, which allow air access.
  • the fluid coupling can be enclosed in this area by a clamping ring or the like with corresponding notches, which also allows access of air.
  • the leading end of the fluid coupling 9 for example, has a larger diameter or is provided with a radially outwardly facing notch or the like, so that the covering film 6 is pierced on a comparatively large cross-sectional area. This is greater than the cross-sectional area of the fluid coupling in the top of the lid 8 facing area.
  • the lid 8 can be removed and replaced by a conventional transport lid.
  • the canister can then be returned to the manufacturer and bottler for refilling.

Landscapes

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

Claims (8)

  1. Réservoir (1) pour un liquide avec une ouverture de soutirage qui est disposée, dans la position active du réservoir (1), au-dessus du niveau du liquide et présente un logement (3) pour une pièce de raccordement de liquide (9) et avec une conduite de soutirage (5) qui s'étend depuis l'ouverture jusqu'à la réserve de liquide, caractérisé en ce que l'ouverture de soutirage présente un obturateur à sens unique étanche aux liquides (6) avec une zone perméable aux gaz (7) et que l'obturateur à sens unique (6) est un dispositif de fermeture constitué d'une feuille qui, lors de la première utilisation du réservoir (1), est percée et devient inutilisable pour des besoins d'obturation et avec un couvercle (8) pour l'ouverture de soutirage du réservoir, ce couvercle présentant une pièce de raccordement de liquide (9) reliée à une conduite d'aspiration, la pièce (9) étant en liaison de fluide avec le logement (3) pour la pièce de raccordement de liquide (9) lorsque le couvercle (8) est mis en place et celle-ci détruisant l'obturateur à sens unique étanche aux liquides (6) lors de la première mise en place sur l'ouverture de soutirage.
  2. Réservoir selon la revendication 1, caractérisé en ce que la zone perméable aux gaz est formée par une ouverture (7) dans la feuille (6) qui est obturée par un matériau étanche aux liquides et perméable aux gaz.
  3. Réservoir selon la revendication 2, caractérisé en ce que le matériau étanche aux liquides et perméable aux gaz est un non tissé perméable aux gaz.
  4. Réservoir selon l'une des revendications 2 et 3, caractérisé en ce que l'ouverture (7) dans la feuille est alignée axialement avec le logement (3) pour la pièce de raccordement de liquide (9), l'ouverture de soutirage.
  5. Réservoir selon l'une des revendications 1 à 4, caractérisé en ce que le logement (3) pour la pièce de raccordement de liquide (9) est disposée dans une garniture (2) qui peut être installée dans l'ouverture de soutirage.
  6. Réservoir selon la revendication 5, caractérisé en ce que la garniture (2) fait saillie au-delà du bord de l'ouverture de soutirage et en ce que l'obturateur à sens unique est disposé sur le bord en saillie de la garniture.
  7. Réservoir selon l'une des revendications 1 à 6, caractérisé en ce que la surface de la zone perméable aux gaz (7) est plus petite d'au moins un facteur 10, de préférence d'au moins un facteur 50, de préférence encore d'au moins un facteur 50, de préférence encore d'au moins un facteur 100, de préférence encore d'au moins un facteur 500, de préférence encore d'au moins un facteur 1.000, que la surface totale de la feuille (6).
  8. Réservoir selon l'une des revendications 1 à 7, caractérisé en ce que l'obturateur à sens unique (6) est en aluminium.
EP20040011935 2004-04-19 2004-05-19 Récipient pour produit liquide Expired - Lifetime EP1588956B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20040011935 EP1588956B1 (fr) 2004-04-19 2004-05-19 Récipient pour produit liquide

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04009206 2004-04-19
EP04009206 2004-04-19
EP20040011935 EP1588956B1 (fr) 2004-04-19 2004-05-19 Récipient pour produit liquide

Publications (2)

Publication Number Publication Date
EP1588956A1 EP1588956A1 (fr) 2005-10-26
EP1588956B1 true EP1588956B1 (fr) 2009-01-07

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EP20040011935 Expired - Lifetime EP1588956B1 (fr) 2004-04-19 2004-05-19 Récipient pour produit liquide

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EP (1) EP1588956B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010044333B3 (de) * 2010-09-03 2011-12-29 Carl Freudenberg Kg Verschlusselement mit Druckausgleichselement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104709581B (zh) * 2013-12-16 2016-11-02 蔡合旺事业股份有限公司 一种电解质溶液盛放装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2403244C3 (de) * 1974-01-24 1980-12-04 Riedel-De Haen Ag, 3016 Seelze Für Gase permeable, flüssigkeitsdichte Absperrvorrichtung
US5335821A (en) * 1992-09-11 1994-08-09 Now Technologies, Inc. Liquid chemical container and dispensing system
US6425502B1 (en) * 1998-02-19 2002-07-30 Entegris, Inc. Containment system
DE10029760A1 (de) * 2000-06-16 2002-01-03 Kador Utz Verschlusseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010044333B3 (de) * 2010-09-03 2011-12-29 Carl Freudenberg Kg Verschlusselement mit Druckausgleichselement

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Publication number Publication date
EP1588956A1 (fr) 2005-10-26

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