EP0990594A1 - Vorrichtung zum Ausbringen pastöser Massen - Google Patents

Vorrichtung zum Ausbringen pastöser Massen Download PDF

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Publication number
EP0990594A1
EP0990594A1 EP98830553A EP98830553A EP0990594A1 EP 0990594 A1 EP0990594 A1 EP 0990594A1 EP 98830553 A EP98830553 A EP 98830553A EP 98830553 A EP98830553 A EP 98830553A EP 0990594 A1 EP0990594 A1 EP 0990594A1
Authority
EP
European Patent Office
Prior art keywords
chamber
closure member
container
variable volume
aperture
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Withdrawn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
EP98830553A
Other languages
English (en)
French (fr)
Inventor
Marco Gramola
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.)
Guala Dispensing SpA
Guala Dispensing SRL
Original Assignee
Guala Dispensing SpA
Guala Dispensing SRL
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 Guala Dispensing SpA, Guala Dispensing SRL filed Critical Guala Dispensing SpA
Priority to EP98830553A priority Critical patent/EP0990594A1/de
Publication of EP0990594A1 publication Critical patent/EP0990594A1/de
Withdrawn legal-status Critical Current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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B65D83/0033—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container the piston being a follower-piston and the dispensing means comprising a hand-operated pressure-device at the opposite part of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00446—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being located at the bottom of the container or of an enclosure surrounding the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1032—Pumps having a pumping chamber with a deformable wall actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1036—Pumps having a pumping chamber with a deformable wall the outlet valve being opened in the direction opposite to the fluid flow downstream the outlet valve by the pressure acting on a valve controlling element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container

Definitions

  • the present invention relates to a device for dispensing pasty products of the type comprising a container that extends along a longitudinal axis from a bottom end having an air inlet aperture to an opposite end on which a dispensing head is mounted, a piston located inside the said container and which can move along the said axis only in the direction leading towards the dispensing head, and a chamber of variable volume formed inside the said dispensing head, the said chamber being delimited by a rigid wall that divides it from the said container and is positioned transversely to the said longitudinal axis and by a peripheral wall, one portion of which is deformable on manual application of an external pressure, the said chamber also being fitted with an inlet valve formed in the said dividing wall that allows the product to pass from the container into the chamber but not vice versa, and with an outlet valve that allows the product to be dispensed from the chamber to the outside, the said outlet valve comprising an aperture formed in a rigid portion of the peripheral wall of the said chamber and, located inside the chamber, a closure member on
  • Dispensing devices of the type mentioned above are known in the art and are widely used, especially for products such as, for example, toothpaste and cosmetic creams.
  • Dispensing devices of the type described above are, for example, disclosed in EP-A-0,363,307, EP-A-0,282,791 and in DG-A-9,518,670.
  • valve for dispensing the product to the outside opens when a given pressure is reached inside the chamber of variable volume as a result of the pumping action exerted manually on the flexible portion of the peripheral wall.
  • This state generally leads to an initial uncontrolled dose of product being spurted out on account of the sudden displacement of the closure member and the consequent opening of the dispensing aperture when the pressure inside the chamber of variable volume reaches a level such that it generates a thrust force on the closure member which is only just greater than the counter-force exerted by the elastic members designed to keep it in the closed position.
  • the object of the present invention is to eliminate the abovementioned drawback of known devices by proposing a device that allows the product to be dispensed in a controlled manner, even during the initial phase, irrespective of the pressure reached inside the chamber of variable volume.
  • the numeral 1 denotes a cylindrical container designed to contain a pasty product such as, for example, cream.
  • the bottom 2 has a hole 3.
  • the container 1 mainly extends along the longitudinal axis X-X.
  • a piston 4 Located inside the cylinder 1 is a piston 4 which, in the conventional manner, is designed to move along the axis X-X only in the direction leading away from the bottom 2 and towards a dispensing head, which is denoted overall as 5.
  • the piston 4 defines a cylindrical chamber 6, which contains the product 7 to be dispensed, and an opposite chamber 8 into which air enters, via the hole 3, when the dispenser is operated.
  • the head 5 comprises a chamber 9 of variable volume which is defined by a wall 10 that divides it from the chamber 6 of the container 1 and by an outer peripheral wall 11.
  • the dividing wall 10 is made of a rigid material and is positioned perpendicularly to the longitudinal axis X-X.
  • This wall 10 is fixed to the edge 12 of the container 1 by means of a collar 13 which is inserted like a stopper into the end aperture 14 of the said container 1.
  • the peripheral wall of the chamber 9, denoted overall as 11, is fastened on to the said edge 12 of the container 1 via a sleeve 15 which is attached like a cap and held in position by an annular projection 16 that engages by snap-action underneath a corresponding annular projection 17 on the external surface of the edge 12.
  • the dividing wall 10 has a through hole 18 over which a plate-like closure element 19, housed in the chamber 9, operates.
  • the hole 18 and the plate 19 constitute a conventional inlet valve that allows the pasty product 7 to pass only from the container 1 into the chamber of variable volume 9 and not vice versa.
  • the plate 19 is connected to the wall 10 via a flexible strip 20 that acts as a hinge and a peg 21 that fits securely into a corresponding hole 22 in the wall 10.
  • the wall 10 has a cylindrical collar 23 which, in the example illustrated, is hollow and communicates with the chamber 6 of the container 1.
  • the collar 23 extends towards the chamber of variable volume 9 and extends axially into it for a certain length.
  • the closure member 24 mounted so that it can slide axially on the collar 23 is the closure member 24 on which presses the periphery 25 of an aperture 26 formed in a rigid portion 27 of the peripheral wall 11 of the chamber 9.
  • the closure member 24 and the aperture 26 constitute an outlet valve through which the pasty product is dispensed to the outside once it has passed from the container 1 into the chamber 9.
  • the closure member 24 comprises a first conical portion 28 which is connected, via a first elastic bellows-type flexible diaphragm 29, to a second cylindrical portion 30 having a diameter larger than that of the first conical portion 28 at the point where it connects to the diaphragm 29.
  • the portion 31 is connected to a second elastic bellows-type flexible diaphragm 33.
  • This diaphragm contains a plurality of through holes 33a which allow the space beneath the diaphragm to communicate with the chamber 9 so as to keep the respective local pressures equal.
  • the said diaphragm 33 is connected to the strip 20 and, via the peg 21, to the dividing wall 10.
  • the sliding connection between the closure member 24 and the collar 23 is achieved by virtue of the cavities 34 inside the cylindrical portions 30 and 31.
  • the aperture 26 is surrounded by a sleeve 35 which extends inside the chamber of variable volume 9, coaxially with the conical portion 28 of the closure member 24, forming a conical cavity 35a whose shape corresponds to the external shape of the said conical portion 28.
  • a sleeve 35 which extends inside the chamber of variable volume 9, coaxially with the conical portion 28 of the closure member 24, forming a conical cavity 35a whose shape corresponds to the external shape of the said conical portion 28.
  • the abovementioned closure member engages with an intermediate zone 37 of a tongue-like element 38 which is made of an elastically flexible material.
  • the end 39 of the said element 38 is connected to an annulus 40 while its opposite end 41 extends towards an elastically flexible portion 42 of the peripheral wall 11 of the chamber 9.
  • the intermediate zone 37 of the element 38 is in the shape of a ring 43, with the second cylindrical portion 30 of the closure member 24 engaging axially inside this ring 43.
  • That edge 44 of the element 38 that axially faces the dividing wall 10 has a projecting portion 45 with a cam profile which is designed to engage operationally with the step 32 on the closure member during operation of the device.
  • the tongue-like element 38 is anchored to the dividing wall 10 by inserting the annulus 40 into an annular groove 48 formed in the external face of the sleeve 13.
  • the element 38 is positioned such that it projects out and such that it can bend at the end 39 when the end 41 is pressed.
  • a tubular sleeve 49 integral with the rigid portion 27 of the wall 11, is also provided around the closure member 24 and extends into the chamber 9.
  • This sleeve 49 is coaxial with the portion 30 of the closure member against which its front end abuts when the closure member is in the closed position, as illustrated in Figure 1.
  • the sleeve 49 thus isolates the portion 28 of the closure member and the flexible diaphragm 29 from the chamber 9 when the closure member is in the closed position, offering the advantage that it will be unaffected by any induced pressure fluctuations that may arise inside the chamber 9, for example as a result of changes in temperature.
  • the sleeve 49 thus ensures that the device is fully sealed when not in use or during transportation and storage.
  • the dispensing valve opens as a result of the mechanical displacement of the closure member 24 relative to the hole 26, irrespective of the pressure reached inside the chamber of variable volume 9.
  • the pasty material present in the chamber 9 can thus be dispensed via the aperture 26 in a consistent and controlled manner, without the risk of it being spurting out as is the case in known devices in which the opening of the closure member can be abrupt, depending as it does on the pressure reached inside the chamber 9.
  • the product normally flows out through the annular gap 36. However, if, as the product is dispensed, high internal pressures are reached following a rapid and repeated manual pumping action on the flexible portion 42, the flow rate of the dispensed product can be increased since, following the collapse of the bellows diaphragm 29 as illustrated in Figure 3, the entire through passage of the sleeve 35 and the aperture 26 is opened up.
  • the area of the annular gap 36 must of course be calculated as a function of the viscosity of the product to be dispensed so that a certain amount of product remains in this gap such that only some of it will be sucked back into the chamber 9 when the flexible portion 42 is released.
  • the piston 4 acts in a conventional manner inside the container 1 and so does not need to be described here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP98830553A 1998-09-23 1998-09-23 Vorrichtung zum Ausbringen pastöser Massen Withdrawn EP0990594A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98830553A EP0990594A1 (de) 1998-09-23 1998-09-23 Vorrichtung zum Ausbringen pastöser Massen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830553A EP0990594A1 (de) 1998-09-23 1998-09-23 Vorrichtung zum Ausbringen pastöser Massen

Publications (1)

Publication Number Publication Date
EP0990594A1 true EP0990594A1 (de) 2000-04-05

Family

ID=8236797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830553A Withdrawn EP0990594A1 (de) 1998-09-23 1998-09-23 Vorrichtung zum Ausbringen pastöser Massen

Country Status (1)

Country Link
EP (1) EP0990594A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006126014A3 (en) * 2005-05-26 2008-02-28 Incro Ltd A check valve and a split-body fluid device having such a check valve
WO2008046897A1 (en) * 2006-10-20 2008-04-24 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Novel device
DE102007060359A1 (de) * 2007-05-16 2008-12-24 Seaquist Perfect Dispensing Gmbh Abgabevorrichtung
CN101272865B (zh) * 2005-05-26 2010-06-16 英克罗有限公司 止回阀和带有该止回阀的分体式流体设备
CN101528563B (zh) * 2006-10-20 2012-02-08 葛兰素史密斯克兰消费者保健股份有限公司 阀门致动器和结合该阀门致动器的分配器
FR2969935A1 (fr) * 2011-01-03 2012-07-06 Cinqpats Conditionnement, distribution, application d'un contenu a consistance de liquide a pateux.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282791A2 (de) * 1987-03-18 1988-09-21 Bramlage GmbH Spender für pastöse Massen
EP0363307A1 (de) * 1988-10-03 1990-04-11 Plasco Sa Als Spender für pastöse Produkte ausgebildete Dose
EP0782963A1 (de) * 1995-12-18 1997-07-09 Guala Dispensing S.P.A. Verteiler für pastöse Produkte wie Zahnpasta,kosmetische Cremes oder dgl

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282791A2 (de) * 1987-03-18 1988-09-21 Bramlage GmbH Spender für pastöse Massen
EP0363307A1 (de) * 1988-10-03 1990-04-11 Plasco Sa Als Spender für pastöse Produkte ausgebildete Dose
EP0782963A1 (de) * 1995-12-18 1997-07-09 Guala Dispensing S.P.A. Verteiler für pastöse Produkte wie Zahnpasta,kosmetische Cremes oder dgl

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006126014A3 (en) * 2005-05-26 2008-02-28 Incro Ltd A check valve and a split-body fluid device having such a check valve
CN101272865B (zh) * 2005-05-26 2010-06-16 英克罗有限公司 止回阀和带有该止回阀的分体式流体设备
WO2008046897A1 (en) * 2006-10-20 2008-04-24 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Novel device
CN101528563B (zh) * 2006-10-20 2012-02-08 葛兰素史密斯克兰消费者保健股份有限公司 阀门致动器和结合该阀门致动器的分配器
AU2007312225B2 (en) * 2006-10-20 2012-10-25 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Novel device
AU2007312225B8 (en) * 2006-10-20 2013-02-21 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Novel device
DE102007060359A1 (de) * 2007-05-16 2008-12-24 Seaquist Perfect Dispensing Gmbh Abgabevorrichtung
FR2969935A1 (fr) * 2011-01-03 2012-07-06 Cinqpats Conditionnement, distribution, application d'un contenu a consistance de liquide a pateux.
WO2012093222A1 (fr) * 2011-01-03 2012-07-12 Cinqpats Conditionnement, distribution, application d'un contenu a consistance de liquide a pateux.
US9446424B2 (en) 2011-01-03 2016-09-20 Cinqpats Packaging, dispensing and use of contents having a liquid to pasty consistency

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