EP0697348A1 - Ensemble vanne de distribution et poche soudée avec celui-ci - Google Patents

Ensemble vanne de distribution et poche soudée avec celui-ci Download PDF

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Publication number
EP0697348A1
EP0697348A1 EP95111710A EP95111710A EP0697348A1 EP 0697348 A1 EP0697348 A1 EP 0697348A1 EP 95111710 A EP95111710 A EP 95111710A EP 95111710 A EP95111710 A EP 95111710A EP 0697348 A1 EP0697348 A1 EP 0697348A1
Authority
EP
European Patent Office
Prior art keywords
bag
valve body
discharge tube
dispensing
tube
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
EP95111710A
Other languages
German (de)
English (en)
Other versions
EP0697348B1 (fr
Inventor
Adalberto Geier
Giuseppe Dalsant
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.)
Coster Technologie Speciali SpA
Original Assignee
Coster Technologie Speciali SpA
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Filing date
Publication date
Application filed by Coster Technologie Speciali SpA filed Critical Coster Technologie Speciali SpA
Publication of EP0697348A1 publication Critical patent/EP0697348A1/fr
Application granted granted Critical
Publication of EP0697348B1 publication Critical patent/EP0697348B1/fr
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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated
    • B65D83/62—Contents and propellant separated by membrane, bag, or the like

Definitions

  • the invention relates to a structural unit consisting of a dispensing valve for dispensing pressurized liquids, foams, gels or the like, and a bag made of flexible film material welded to it, according to the preamble of claim 1.
  • Such a unit is known from WO 90/10583.
  • part of a dispensing valve extends through a bag which is tightly welded to the valve body of the dispensing valve. This prevents the contents of the bag from escaping through a space between the bag and the dispensing valve and ensures a good hold.
  • a bag which consists of a flexible film material which is composed of several layers.
  • the innermost layer is usually polyethylene or polypropylene.
  • polyethylene or polypropylene have the property, among other things, that they can only be welded well to themselves or to one another, that is to say in turn to polyethylene or polypropylene. Welding with another material has proven to be unsustainable. Since the bag is welded directly to the dispensing valve, the dispensing valve had to be made from polyethylene or polypropylene. However, these materials have the disadvantage that on the one hand they break easily and on the other hand they are permeable to organic media. Thus, it is easily possible for the dispensing valve to break inside the container when the container falls to the bottom.
  • Permeability to organic media is also extremely disadvantageous.
  • a gel filled in a bag can contain isopentane, which must be kept under pressure and foams at about 34 ° C.
  • an organic medium such as butane, which is good for the environment, is used as a pressure medium with the unit, then when using polyethylene or polypropylene for the dispensing valve, the butane slowly diffuses through the dispensing valve and a pressure equalization takes place between the bag and the interior of the container .
  • a medium contained in the gel, in particular a solvent can also diffuse out of the bag.
  • the object of the invention is therefore to provide a structural unit of the type mentioned at the outset, which is shatterproof, in which an exchange of individual substances, in particular organic media, between the bag interior and the surroundings is effectively prevented, and in which a good seal between the bag and the dispensing valve is nevertheless achieved is ensured.
  • a discharge tube of a dispensing valve which is arranged inside a bag, passes through the bag film and with a valve body of the dispensing valve is connectable, provided with a surface or with a covering which allows a good welding between the bag film and the discharge tube.
  • the discharge tube is made from a material which is unbreakable and, in particular, is not permeable to organic media; and on the other hand the surface or the covering consists of a material which can be easily welded to the bag film. Storage periods of three or more years are therefore easily possible. Appropriate guarantee periods can be given.
  • a technically simple possibility to provide a covering on the discharge tube is provided by a sleeve which can be pushed onto or pushed onto the discharge tube.
  • the discharge tube can thus be made entirely of a material that is unbreakable and not permeable to organic media.
  • the sleeve is also easy to manufacture and consists of a material that can be welded well to the inside of the bag film.
  • An advantageous embodiment is characterized in that the discharge tube has a disk-like, in particular a cylindrical cap-like widening which adjoins the bag directly within the bag and delimits an annular space around the discharge tube which is open towards the inside of the bag. This widening increases the stability of the discharge tube. Furthermore, this measure provides an enlarged welding area with the bag film, so that it does not tear out even under the slightest stress.
  • the outer circumference of this widening is provided with a covering or is formed with a surface which can be easily welded to the inside of the bag film.
  • the discharge tube has a tube section which extends through an opening of the bag and which can be latched within an associated opening of the valve body of the dispensing valve, in such a way that the valve body with the interior of the bag is fluid-tight with respect to the interior of the outer container is fluidly connectable.
  • the discharge tube and the valve body can be manufactured separately.
  • an opening is provided in the still open and not welded-together bag film, the tube section of the discharge tube is inserted through this opening and inserted into the valve body in a latching manner. If the pouch film is then welded together at its edges, forming the pouch, the structural unit is finished. When the edge welds are formed, the bag is also welded to the discharge tube.
  • a riser pipe extending close to the bottom of the bag is connected to the discharge tube. This allows the contents on the bottom of the bag to be discharged and the bag to be emptied better. Furthermore, the riser gives the bag additional stability.
  • the discharge tube preferably has a lateral opening which extends into the annular space defined by the widening like a cylinder cap, which is open towards the bag. This creates a further fluid connection between the interior of the bag and the valve body which is arranged in the top of the bag and by means of which the contents of the bag can be discharged via the dispensing valve. This prevents the upper part of the same from being emptied when the bag is constricted in the central area.
  • valve body and the discharge tube are polyacetal; the sleeve welded to the bag film is made of polyethylene, polypropylene, polyamide or the like material.
  • the polyacetal material used for the valve body and discharge tube is unbreakable and not permeable to organic media.
  • the materials that can be used for the sleeve can be welded well to the inner layer of the bag film.
  • FIG. 1 to 6 show a structural unit consisting of a dispensing valve 12 and a bag 24 welded to it.
  • An outer container 22, which may consist, for example, of tinplate or plastic, surrounds the bag 24 in such a way that a receiving space is defined between these two components.
  • the container 22 has at its upper end an opening 23 through which the bag 24 is inserted into the container 22 or, in the inserted state, the dispensing valve 12 protrudes beyond the container 22.
  • the opening 23 is closed by a cover 25 in the usual way.
  • a cover opening 26 is in turn formed in the cover 25.
  • a valve body 14 of the dispensing valve 12 is held by its edge 21 such that the dispensing tube 18 passes through the lid opening 26.
  • the dispensing tube 18 can thus be operated from the outside.
  • the bag 24 and the container 22 thus represent a two-chamber pack, a liquid or pasty filling material being filled in the bag 24 (in the present exemplary embodiment) and a pressure medium such as air or butane being able to be filled in the container 22.
  • the above-mentioned bag or container contents can be filled into the bag or container via the dispensing valve 12.
  • the bag 24 expands in the container 22 and takes up a substantial part of the container volume.
  • the contents of the bag can be squeezed out through the dispensing valve 12 with the corresponding expansion of the pressure medium in the container 22, specifically through the dispensing tube 18.
  • the bag 24 consists of a flexible film material, which is composed of several layers.
  • the film comprises three layers, namely an outer polyamide or polyester layer, a middle aluminum layer and an inner polyethylene or polypropylene layer.
  • the bag 24 extends essentially over the entire length of the interior of the container 22. Specifically, it is formed by the film of the above-mentioned type which is folded over and welded or sealed to one another at the edges.
  • the bag 24 is welded and held in a fluid-tight manner on a section of the dispensing valve 12.
  • Dispensing tube 18 which is displaceably mounted in the axial direction from a closed position to an open position and vice versa, is accommodated in valve body 14 and can be moved out of its closed position against the action of a helical compression spring 20.
  • the helical compression spring 20 is supported on the one hand on a seat in the lower region of the valve body 14 and on the other hand on the dispensing tube 18 itself.
  • annular seal 28 for example made of rubber, which also surrounds the dispensing tube 18 in a fluid-tight manner.
  • This ring seal 28 closes off the cylindrical valve body 14, which is open at the top. So it has a double function. First, it prevents a substance from the bag from accidentally escaping through the valve body interior; on the other hand, no medium from the container interior can inadvertently get into the external environment.
  • the ring seal 28 also serves to close a lateral access 54 to a discharge channel 56 formed in the dispensing tube 18 in the closed position of the dispensing tube 18.
  • the access 54 is released, as can be seen in particular from FIG. 4.
  • a fluid connection is created between the discharge channel 56 in the discharge tube 18 and the interior of the valve body, which - as will be explained later - is in turn fluidly connected to the interior of the bag.
  • the valve body 14 has at its lower end - in the figures shown - a bore 64 which defines access to the inner cavity of the valve body 14.
  • a tube section 44 of a discharge tube 56 can be inserted through this bore 64 and engages in the fully inserted state.
  • the locking effect is achieved in that a radially outwardly projecting annular flange is formed at the discharge valve-side end of the tube section 44, which engages behind the bore 64 within the valve body 14 in the assembled state.
  • the tube section 44 has been inserted through an opening of the bag film before being inserted into the bore 64 of the valve body 14, so that the bag 24 is clamped between the discharge tube 58 and the valve body 14 with the interposition of a further sealing ring 32. A complete seal with respect to the container interior is achieved by the interposed sealing ring 32.
  • the discharge tube 58 which is located inside the bag, immediately after the bag 24 comprises a cylinder cap-like widening 38, which defines an annular disk-like contact surface 40 for the bag film clamped between the discharge tube 58 and the valve body 14. This significantly reduces the risk of the bag tearing out at this point.
  • An annular space 60 is defined between the cylinder-cap-like widening 38 and the discharge tube 58 continuing into the bag 24, which opens (downwards in FIG. 4) towards the bag interior 52.
  • a radially outwardly projecting peripheral edge 37 is provided at the free end of the cylinder-cap-like widening 38.
  • a sleeve 36 is pushed onto the cylinder-cap-like widening 38, which is supported on the peripheral edge 37 in the fully pushed-on or plugged-on state.
  • the sleeve 36 is held upward by the bag 24.
  • the bag 24 is welded or sealed in a fluid-tight manner on the sleeve 36.
  • the dispensing valve 12, namely the valve body 14, the dispensing tube 18 and the dispensing tube 58 are made of a material which is both unbreakable and not permeable to organic media. Polyacetal, for example, is suitable for this.
  • the sleeve 36 consists of a material which can be sealed well with the bag 24 or the inside of the bag film. Polyethylene, polypropylene or similar materials are suitable as materials for this.
  • the construction described ensures a high level of break resistance. Furthermore, media exchange between the container and the bag is prevented. In addition, a permanent sealing of the bag on the dispensing valve 12 and us can thus achieve a correspondingly permanent connection between the bag and the dispensing valve.
  • a riser 42 is connected, which extends close to the bottom of the bag 24. This riser 42 also has a stabilizing function for the bag 24.
  • a filling cap 67 is placed on the dispensing valve 12 or the upper end of the container 22, which is suitable for filling the container 22.
  • a flow path is formed within the filling cap 67 in such a way that a medium can be introduced into the area in which the dispensing tube 18 protrudes from the lid opening 26. If a medium is now supplied under pressure via the flow paths formed in the filling cap 67, the ring seal 28, as can be seen in FIG. 3 and also in FIG.
  • a blowing agent or gas is introduced into the interior of the container, preferably air, butane or another environmentally friendly blowing agent being used.
  • a filling cap 69 shown in FIGS. 4 and 6 which has an O-ring seal for sealing between the dispensing tube 18 and the filling cap 69.
  • the dispensing tube 18 is moved from its closed position into an open position counter to the direction of the compression spring 20.
  • the discharge channel 56 is fluidly connected via the access 54 to the interior of the valve body 14, which in turn opens into the interior of the bag 24 via a continuous axial bore in the tube section 44 and the discharge tube 58.
  • the mouth occurs on the one hand at the lower end of the riser 42, that is to say in the lower region of the bag, and on the other hand at the lateral opening 65 of the discharge tube in the region of the annular space 60 in the upper part of the bag 24.
  • the dispensing tube 18 When the bag is emptied, the dispensing tube 18 is pressed down against the action of the helical compression spring 20, so that the contents of the bag are pressed out in the container 22 with expansion of the compressed gas.
  • This assembly creates a device that is unbreakable, prevents an exchange of organic media between the bag and container interior and also ensures good and permanent welding between the bag and the valve body.
  • the widening 38 prevents the bag 24 from being torn out quickly.
  • the cylinder-cap-like widening 38 is replaced by a simple disk which extends transversely to the discharge tube 58 to form an annular disk-shaped contact surface corresponding to the contact surface 40 for the bag.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Bag Frames (AREA)
EP95111710A 1994-08-01 1995-07-25 Ensemble vanne de distribution et poche soudée avec celui-ci Expired - Lifetime EP0697348B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427175 1994-08-01
DE4427175A DE4427175A1 (de) 1994-08-01 1994-08-01 Baueinheit

Publications (2)

Publication Number Publication Date
EP0697348A1 true EP0697348A1 (fr) 1996-02-21
EP0697348B1 EP0697348B1 (fr) 2000-04-19

Family

ID=6524633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111710A Expired - Lifetime EP0697348B1 (fr) 1994-08-01 1995-07-25 Ensemble vanne de distribution et poche soudée avec celui-ci

Country Status (4)

Country Link
US (1) US5630530A (fr)
EP (1) EP0697348B1 (fr)
DE (2) DE4427175A1 (fr)
ES (1) ES2147809T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001017689A1 (fr) 1999-09-03 2001-03-15 Coster Tecnologie Speciali S.P.A. Pompe de distribution servant a distribuer des liquides, gels ou substances similaires
DE19832824C2 (de) * 1998-07-21 2002-05-16 Coster Tecnologie Speciali Spa Abgabepumpe für die Abgabe von Flüssigkeiten, Gelen oder dgl. Medien
EP1473246A1 (fr) * 2003-04-28 2004-11-03 Coster Tecnologie Speciali S.P.A. Ensemble comportant une vanne de distribution et une poche liée étanchement avec celle-ci
US7350676B2 (en) 1996-12-27 2008-04-01 Smithkline Beecham Corporation Valve for aerosol container
EP1932775A2 (fr) * 2002-08-15 2008-06-18 Olaf Kersten Valve de distribution dotée d'un sac
DE202011108514U1 (de) 2011-12-01 2012-01-20 Olaf Kersten Kolbendose als Zweikammersystem
CN111801284A (zh) * 2018-03-16 2020-10-20 阿普塔多特蒙德有限公司 阀布置结构和分配设备

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6127009A (en) * 1996-05-08 2000-10-03 Pactiv Corporation Dispenser unit, process for manufacturing the same and its use
JP2000062870A (ja) * 1998-08-19 2000-02-29 Toyo Aerosol Ind Co Ltd 二重エアゾール容器
DE10126489A1 (de) * 2001-05-31 2002-12-05 Hilti Ag Druckdose
US7913877B2 (en) * 2003-01-21 2011-03-29 Aptargroup Inc. Aerosol mounting cup for connection to a collapsible container
US7124788B2 (en) * 2003-07-10 2006-10-24 Precision Valve Corporation Means and method for filling bag-on-valve aerosol barrier packs
WO2006133328A1 (fr) * 2005-06-07 2006-12-14 Powers Products Iii, Llc Appareil et procede permettant d'etancheifier une valve de distribution sur une poche
MY150898A (en) * 2005-11-03 2014-03-14 Southern Star Corp Improved plastic aerosol container
US20070286814A1 (en) * 2006-06-12 2007-12-13 Medispray Laboratories Pvt. Ltd. Stable aerosol pharmaceutical formulations
CN101883726B (zh) * 2007-12-18 2011-11-30 倚峰（南京）科技实业有限公司 钉枪气雾罐及其灌装方法
US20090236363A1 (en) * 2008-03-14 2009-09-24 Bissell Homecare, Inc. Manual Spray Cleaner
TW201024050A (en) * 2008-12-23 2010-07-01 Superior Power Tool Co Ltd Fuel gas tank for fuel gas-powered nail gun and inner bag connector structure used in the fuel gas tank
US8844584B1 (en) * 2010-02-05 2014-09-30 Bissell Homecare, Inc. Apparatus and method for a pressurized dispenser refill system
JP5952739B2 (ja) * 2010-10-29 2016-07-13 株式会社ダイゾー 複数液吐出用エアゾール容器、複数液吐出エアゾール製品およびそれに用いられる内部容器
US9522775B2 (en) 2012-10-15 2016-12-20 Smart Wave Technologies Corp. Aerosol dispensing apparatus
US20170121098A1 (en) * 2015-11-02 2017-05-04 American Sterilizer Company Non-aspirating transport gel dispenser

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704013A1 (de) * 1977-02-01 1978-08-03 Gustav Beyer Membran-spruehdose
EP0105537A2 (fr) * 1982-10-04 1984-04-18 Aerosol-Service Ag Emballage à deux compartiments
WO1990010583A1 (fr) 1989-03-10 1990-09-20 Coster Tecnologie Speciali S.P.A. Conditionnement a deux chambres
EP0585908A2 (fr) * 1992-09-01 1994-03-09 Präzisions-Werkzeuge AG Réceptacles avec sachet interne

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE585908C (de) * 1933-10-12 Anton Weinberger Elektrischer Viehtreibstock
JP2612758B2 (ja) * 1987-06-26 1997-05-21 ヴエルデイング，ヴインフリート・ジヤン 加圧下にある製品の貯蔵及び排出制御のための装置
DE9010583U1 (de) * 1990-07-13 1990-12-06 Albert Maier GmbH, 7252 Weil der Stadt Vorrichtung zum Einlegen von Dichtungsringen
DE4131437A1 (de) * 1991-09-21 1993-03-25 Roland Lechner Kunststoffwerkstoff und dessen verwendung
DE4131436A1 (de) * 1991-09-21 1993-03-25 Roland Lechner Kunststoffwerkstoff und dessen verwendung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704013A1 (de) * 1977-02-01 1978-08-03 Gustav Beyer Membran-spruehdose
EP0105537A2 (fr) * 1982-10-04 1984-04-18 Aerosol-Service Ag Emballage à deux compartiments
WO1990010583A1 (fr) 1989-03-10 1990-09-20 Coster Tecnologie Speciali S.P.A. Conditionnement a deux chambres
EP0585908A2 (fr) * 1992-09-01 1994-03-09 Präzisions-Werkzeuge AG Réceptacles avec sachet interne

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7350676B2 (en) 1996-12-27 2008-04-01 Smithkline Beecham Corporation Valve for aerosol container
DE19832824C2 (de) * 1998-07-21 2002-05-16 Coster Tecnologie Speciali Spa Abgabepumpe für die Abgabe von Flüssigkeiten, Gelen oder dgl. Medien
WO2001017689A1 (fr) 1999-09-03 2001-03-15 Coster Tecnologie Speciali S.P.A. Pompe de distribution servant a distribuer des liquides, gels ou substances similaires
EP1932775A2 (fr) * 2002-08-15 2008-06-18 Olaf Kersten Valve de distribution dotée d'un sac
EP1932775A3 (fr) * 2002-08-15 2008-06-25 Olaf Kersten Valve de distribution dotée d'un sac
EP1473246A1 (fr) * 2003-04-28 2004-11-03 Coster Tecnologie Speciali S.P.A. Ensemble comportant une vanne de distribution et une poche liée étanchement avec celle-ci
WO2004096665A1 (fr) * 2003-04-28 2004-11-11 Coster Tecnologie Speciali S.P.A. Unite composee d'une soupape de distribution et d'une poche reliee a la soupape de façon etanche aux fluides
CN100513274C (zh) * 2003-04-28 2009-07-15 科斯特专业技术股份公司 包括输出阀和与之流体密封连接的袋的组件
US7828173B2 (en) 2003-04-28 2010-11-09 Coster Tecnologie Speciali S.P.A. Assembly consisting of a dispensing valve and a pouch in fluid-tight connection therewith
DE202011108514U1 (de) 2011-12-01 2012-01-20 Olaf Kersten Kolbendose als Zweikammersystem
CN111801284A (zh) * 2018-03-16 2020-10-20 阿普塔多特蒙德有限公司 阀布置结构和分配设备
CN111801284B (zh) * 2018-03-16 2023-03-10 阿普塔多特蒙德有限公司 阀布置结构和分配设备

Also Published As

Publication number Publication date
DE59508189D1 (de) 2000-05-25
EP0697348B1 (fr) 2000-04-19
US5630530A (en) 1997-05-20
DE4427175A1 (de) 1996-02-08
ES2147809T3 (es) 2000-10-01

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