EP2218515A1 - Zerstäuber mit einem Einwegventil - Google Patents

Zerstäuber mit einem Einwegventil Download PDF

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Publication number
EP2218515A1
EP2218515A1 EP10152538A EP10152538A EP2218515A1 EP 2218515 A1 EP2218515 A1 EP 2218515A1 EP 10152538 A EP10152538 A EP 10152538A EP 10152538 A EP10152538 A EP 10152538A EP 2218515 A1 EP2218515 A1 EP 2218515A1
Authority
EP
European Patent Office
Prior art keywords
membrane
support
sealing means
rigid
product
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
EP10152538A
Other languages
English (en)
French (fr)
Other versions
EP2218515B1 (de
Inventor
Xavier Donnette
José Camba
Gaëtan Painchaud
Sylvain Lanzi
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.)
Nemera la Verpilliere SAS
Original Assignee
Rexam Healthcare La Verpilliere SAS
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 Rexam Healthcare La Verpilliere SAS filed Critical Rexam Healthcare La Verpilliere SAS
Publication of EP2218515A1 publication Critical patent/EP2218515A1/de
Application granted granted Critical
Publication of EP2218515B1 publication Critical patent/EP2218515B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • 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
    • B05B11/1066—Pump inlet valves
    • 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
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • 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
    • B05B11/0064—Lift valves
    • 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
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

Definitions

  • the present invention relates to the technical field of the delivery of liquid, semi-liquid, viscous or gaseous product, in particular in the medical field.
  • This device may comprise a pump, or another type of dispensing means comprising a non-return valve.
  • the device can be used in particular for nasal sprays, for dispensing ophthalmic liquid, or for inhalation of powder.
  • an elastic membrane forming a non-return valve is used which is attached to a support having a feed channel and serves as a seat configured so that the non-return valve is either pressed against the seat to block the liquid or remote from the seat. seat to let the liquid pass.
  • the membrane is slidably mounted in a pump metering chamber, in a sealed manner, to expel out of the chamber the product temporarily stored in the chamber.
  • the elastic membrane comprises a transverse wall, forming a non-return valve closing a supply orifice of the chamber, and a cylindrical skirt provided with one or two peripheral sealing lips, in sliding contact with the wall. internal of the dosing chamber.
  • the non-return valve portion can optimally take a product release configuration and a product blocking configuration.
  • this non-return valve portion so long as it is not subjected to depressions, is in sealing contact with a support to block the passage of product in one direction, and that as soon as it is subjected to a depression value as small as possible, allows the passage of product.
  • the non-return valve portion should be as accurate and dimensioned as possible.
  • the present invention aims to provide a membrane easy to achieve and reliably ensuring the sealing of the non-return valve.
  • the membrane has a position easier to control than in the case where the membrane is integrally made of a soft or soft material. Indeed, once the membrane assembled with other parts of the device, thanks to the more rigid part, the ribs associated with the assembly with the other parts will lead to closer tolerances. Thus, the membrane can satisfactorily perform its sealing functions of the non-return valve part and the sealing part of the metering chamber, thanks to the flexibility of the material of the first and second sealing means. , while having dimensions and precise positioning. In other words, the structure of the membrane is optimized, giving flexibility to the sealing zones, and rigidity to the zones which do not provide direct sealing, so as to control the dimensions and the position of the membrane during its assembly.
  • a membrane providing a non-return valve function it is particularly important for a membrane providing a non-return valve function to have precise dimensions and positioning. Indeed, to ensure the anti-return function, the membrane can be deformed against one or more feed orifices provided on the support, so as to be pressed against the support, and it is the force exerted by the membrane to resume its undeformed position which ensures the sealing of the valve. If the membrane is poorly positioned, or of imprecise dimensions, this force exerted by the membrane on the supply port is not sufficient or too important, or at least is poorly controlled in the context of industrial manufacturing, since this leads to very variable membrane opening pressures / depressions.
  • the rigid part makes it possible to better control the dimensions and the position of the membrane relative to the support, therefore the sealing force of the non-return valve, as well as the force exerted by the second sealing means against the wall. of the dosing chamber to ensure the tight sliding, and thus expel the product contained in the metering chamber.
  • the first sealing means form a non-return valve being able to take a liquid blocking configuration by cooperating with the support and a product release configuration, the blocking configuration of the product preventing the return of the product. inside a feed channel once this product has been released. It will be understood that, in the liquid blocking configuration, the first sealing means are pressed against the support, more precisely against the upper end of the support, forming a seat against which they are pressed by elastic return, and that in the configuration release of the product, the first sealing means are detached from this seat, by elastic deformation, under the effect of the pressure of the product, so as to create a passage space of the product.
  • the membrane is slidably mounted in the metering chamber between a rest position, also called low position, and an activated position, also called high position.
  • the dosing chamber thus defines a dosing volume corresponding to the difference between a volume of the chamber in the high position and a volume of the chamber in the low position, also called "dead volume".
  • the volume in the low position, or dead volume is substantially zero
  • the volume in the high position substantially corresponds to the volume of a delivered dose. Since the dead volume is not necessarily zero, the volume of the dosing chamber may be greater than the dosing volume.
  • the membrane may of course comprise other sealing means than the first and second means defined above.
  • the membrane may comprise third sealing means, sealing the membrane with respect to the membrane support. It will also be noted that the entire rigid portion, first and second, or even third, sealing means are integral in displacement, and therefore each slide in the metering chamber.
  • a device for delivering a liquid, semi-liquid, viscous or gaseous product comprises a pump 10, used for example for pharmaceutical nasal sprays.
  • This pump 10 is intended to be mounted on a reservoir (not shown) and is generally surmounted by a dispensing nozzle (not shown), on which the user presses.
  • the pump 10 comprises a first portion 12, said fixed portion, and a second portion 14, said movable portion or dispensing head, movable relative to the fixed portion 12 between a rest position, shown on the figure 2 , and an activated position, represented on the figure 1 .
  • the rest position corresponds to a so-called high position
  • the activated position to a so-called low position.
  • the fixed part 12 comprises a pump body 16, carrying a gripping tube 18, a piston 20 and a guide sleeve 22.
  • the tube 18 is connected to the reservoir, in order to draw product intended to pass through the pump.
  • the fixed part 12 comprises a fastening collar 24, for crimping the pump 10 on the tank. It is understood that the pump can also be mounted on the tank by screwing or snap.
  • the piston 20 comprises a support 26, fixedly mounted in the lower part of the pump body 16, traversed by a feed channel 28, arranged in the extension of the tube 18, and opening onto one or more feed orifices provided on the upper end 32 of the support.
  • the upper end 32 forms a seat for supporting first sealing means, as described below.
  • the support 26 has a generally tubular shape, having at its proximal end a tubular receiving housing of the tube 18 and at its distal end a tubular portion delimiting the channel 28 and extended by a seat 32 of support of Sealing means extending the channel 28.
  • the support 26 is attached to the pump body 16 by a transverse wall.
  • the support 26 is molded with the transverse wall and the pump body 16.
  • the support 26 is also capped, on its upper end 32, by a membrane 30, fixedly mounted on the support 26, around the tubular part delimiting the channel 28.
  • the membrane 30 comprises first sealing means 80, second sealing means 82 and a rigid portion 84.
  • the elements 80, 82, 84 can be obtained by co-injection, bi-injection, or overmolding.
  • the first 80 and second 82 sealing means are made of a flexible material, for example silicone or other elastomeric material or a polymer (for example, polyethylene, polypropylene, etc.).
  • the rigid portion 84 is made of a material that is more rigid than the material of the means 80, 82, for example of polymer (for example polypropylene, polyethylene, polyesters (such as polybutylene terephthalate (PBT), polyacetal, polyamide, etc.) or metal (eg stainless steel, etc.).
  • the membrane 30 is provided, in this example, with an upper transverse wall carrying the first means 80, and with a cylindrical skirt carrying the second means 82. As can be seen from FIG. figure 3 , the membrane defines an inner cavity fitted on the upper end 32 of the support 26. Furthermore, the membrane 30 has third sealing means 85, ensuring a permanent seal between the membrane 30 and the support 26. These third means are also made of a softer material than that of the rigid portion 84. More specifically, these third means are disposed within the cylindrical skirt of the membrane 30, between the first 80 and the second 82 sealing means. The means 85 prevent the passage of liquid in this zone between the support 26 and the membrane 30, so that the product contained in the internal cavity of the membrane, coming from the channel 28, can escape only through the anti-flow valve. return. Note that in this example, the membrane 30 is fitted on the support 26, but that other forms of assembly of these elements can be provided.
  • the first sealing means 80 form a non-return valve. They can take a liquid blocking configuration by being pressed against the support 26 and a release configuration of the product in which they deform elastically to let liquid from the channel 28 pass through. In their blocking configuration, the means 80 close off one or more feed orifices 86 formed on the support 26, preventing the return of the product inside the channel 28 once this product has been released.
  • the first sealing means take the form of one (or more) bead 80, made on the inner contour of one (or more) orifice 88 of liquid release, the orifice 88 being disposed here at center of the upper surface of the membrane. When they are in blocking configuration, the means 80 are pressed against the support 26 by elastic return.
  • the upper end 32 of the support 26 constitutes a support seat for the means 80.
  • This seat 32 is here in the form of a projecting element 32, of substantially cylindrical shape, carried by lugs coming in extension of the channel 28 and defining the orifices 86, so that the liquid from the channel 28 can pass on both sides of the legs, bypass the seat 32 and be blocked by the bead 80 pressed against the upper wall
  • the seat 32 is integrally molded with the support 26.
  • the means 80 deform so as to "loosen” from the upper surface of the seat 32 and thus create a space allowing the product to pass into a metering chamber 38.
  • the mobile part 14 of the pump comprises, in addition to the dispensing nozzle, a first cylinder 36, slidably mounted inside the pump body 16, and delimiting, with the piston 20, more precisely with the membrane 30, the chamber
  • the membrane 30 is slidably mounted in the first cylinder 36, therefore in the chamber 38.
  • the second sealing means 82 have one or more sealing lips 34, ensuring a leaktight sliding of the membrane 30 with respect to the metering chamber 38, in order to expel the product contained in the chamber 38.
  • the chamber 38 defines a dosing volume, corresponding to the difference between the volume of the chamber 38 in the high position and the volume of the chamber 38 in the low position. This dosing volume determines the dose of product delivered at each activation of the device.
  • the metering chamber 38 has a substantially zero volume, because the pump is in the activated position, the dose of product contained in the metering chamber has just been expelled.
  • the chamber 38 has a volume substantially equal to the volume of a dose of product.
  • the means 82 comprise two toric section lips.
  • the means 82 comprise two lips of angular section.
  • the rigid portion 84 is of revolution, it extends mainly in the cylindrical skirt of the membrane 30.
  • the rigid portion 84 has substantially the shape of a ring carrying, on its outer surface, the second means 82.
  • the rigid portion 84 comprises a base 90 bearing on the support 26, abutting against a shoulder 92 of the support to facilitate the precise assembly of the membrane 30.
  • the ring 84 is provided with a bearing surface 94 for an assembly tool. More specifically, this surface 94 takes the form of an upper flange 94, serving as a bearing surface for an assembly tool to easily press the membrane 30 against the support 26.
  • connection between this flange 94 and the remainder of the ring is perforated, so as to create a material bridge between the means 82 and the means 80 of the membrane, serving as mechanical catch for better holding the elements 80, 82 with the part Rigid 84.
  • a material bridge between the means 82 and the means 80 of the membrane serving as mechanical catch for better holding the elements 80, 82 with the part Rigid 84.
  • the dispensing head 14 further comprises a second cylinder 40, made in one piece with the first cylinder 36.
  • the cylinders 36 and 40 can be made of several parts.
  • a needle 42 is slidably mounted inside this second cylinder 40, between a rest position and an activated position, under the action of first return means 43, composed of a spring in compression.
  • the needle 42 is provided with a base 42a, sealingly mounted in the second cylinder 40, of a rod 42b, configured to be able to close, in the rest position of the pump, an orifice 44 formed on the lower end of the second cylinder 40, and an end 42c, projecting slightly inside the metering chamber 38 when the needle 42 is in the activated position.
  • This end 42c is configured to press the membrane 30 when the movable portion 14 is in the activated position, so as to ensure the opening of the orifice 44 in the priming phase of the device (so as to push the air of the metering chamber 38 towards the top of the device) and / or to close the supply orifice of the support 26.
  • the dispensing head 14 also comprises a support 46, fixedly mounted relative to the first 36 and second 40 cylinders, and delimiting a distribution chamber 48.
  • the support 46 could be made in one piece with the elements 36 and / or 40. It is generally on the support 46 that the dispensing nozzle of the device is mounted, the chamber 48 being connected to a dispensing nozzle provided on this nozzle. Note that the chamber 48 is not necessarily present on the support 46, it can provide only a connection of the support 46 and / or the cylinder 40 with the dispensing tip.
  • the support 46 of the head 14 is provided with an inner skirt 50 and an outer skirt 52, between which second return means 54 are housed.
  • the return means 54 are composed of a spring in compression, bearing on the one hand on the support 46, between the two skirts 50, 52, on the other hand on the fixed part 12, at the bottom of the sleeve 22. at the spring 54, the head 14, movable relative to the fixed part 12 between a rest position and an activated position, is held in the up position, as shown in FIG. figure 1 .
  • the support 46 Inside the inner skirt 50, the support 46 also has a seat for the first spring 43.
  • the support 46 further comprises means ensuring the passage of the liquid from the metering chamber 38 to the dispensing nozzle, specifically to the dispensing chamber 48, arranged in particular between the second cylinder 40 and the inner skirt 50, preferably so as to ensure the passage of liquid without this liquid being in contact with the return means 43 and 54.
  • the pump 10 also comprises means 56, 58 for abutment of the movable part 14 relative to the fixed part 12, to be forced past in order for the part 14 to move from its rest position to its activated position.
  • the means 56, 58 comprise in this example three stops 58 carried by the fixed part 12, and three stops 56, carried by the movable part 14 and deformable between an abutment configuration and an erasure configuration.
  • the means 56, 58 of abutment are permanent, and are intended to be crossed in force at each activation of the pump by the user. They are intended to force the user to exert minimal force on the moving part 14, in order to deliver complete doses, with a good quality spray, in particular from the point of view of the size and density of the particles.
  • the pump 10 Before the user delivers a dose of product, the pump 10 is in the rest position, or high position, represented on the figure 2 .
  • the rest position corresponds to a position in which the first cylinder 36, therefore the whole of the mobile part 14, is shifted upwards with respect to the fixed part 12, in particular with respect to the pump body 16.
  • the needle 42 is pressed against the lower end of the cylinder 40, under the action of the spring 43, the rod 42b cooperating with the orifice 44 so as to close this orifice.
  • the end 42c of the needle 42 is not in contact with the piston 20, the latter being at the bottom of the metering chamber 38.
  • the means 80 forming a non-return valve are here in configuration liquid blocking.
  • the movable portion 14 of the pump 10 When the user wishes to deliver a dose of product, he presses the movable portion 14 of the pump 10, possibly by pressing the dispensing tip. It thus exerts on the mobile part 14 a force schematized by the arrow 70 on the figure 1 , in order to activate the pump 10. Under the action of this support, the movable portion 14 begins to descend, until the abutment means 56, 58 are crossed in force.
  • the movable portion 14 continues its downward stroke, in accordance with the arrow 70.
  • the support 46 moving downwards, the first 36 and second 40 cylinders are also moved to the bottom, which has the effect of reducing the volume of the metering chamber 38, the membrane 30 sliding in the chamber 38. More specifically, the liquid contained in this chamber exerts an upward pressure on the needle 42, so that the rod 42b is displaced and no longer obturates the orifice 44. The liquid can thus escape from the chamber 38. Once the liquid has passed through the orifice 44, it flows between the second cylinder 40 and the inner skirt 50, and then passes into the distribution chamber 48, to be delivered out of the dispensing nozzle.
  • the liquid exerts a pressure on the needle 42 to raise it.
  • the end 42c of the needle in the low position presses on the membrane 30 so as to press against the upper end 32 of the support 26, and thus close the release orifice (s) 88.
  • the metering chamber 38 Once the metering chamber 38 reaches its volume in the low position, here substantially zero, that is to say once the dose of product has been dispensed, the user releases its support on the mobile part 14. Under the action of the spring 43, the needle 42 is again compressed against the bottom wall of the cylinder 40, so as to close the orifice 44. Moreover, under the effect of the spring 54, the movable portion 14 rises upwards in a direction opposite to the arrow 70, which slides the second cylinder 36 relative to the piston 20 in the direction opposite to the arrow 70. Thus, the metering chamber 38 increases in volume, so as to create a depression and aspirate the product through the grip tube 18. Specifically, the means 80 deform to take their liquid release configuration.
  • the movable portion 14 moves upward to the initial rest position. In this position, the metering chamber 38 is again filled with product, having an identical volume in the high position, and thus making it possible to deliver another dose, of identical volume to that just delivered.
  • the means 80 resume their liquid blocking position.
  • membrane-like membrane 30 may be used in a device other than a pump.
  • membrane 30 offers better control of the opening force of the orifice 88 of the membrane, thanks to the size and precise positioning.
  • the use of a bi-material membrane to form the non-return valve pressed against a seat 32 on which the membrane 30 is reported particularly reliably ensures the non-return function.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP10152538A 2009-02-06 2010-02-03 Zerstäuber mit einem Einwegventil Not-in-force EP2218515B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0950776 2009-02-06

Publications (2)

Publication Number Publication Date
EP2218515A1 true EP2218515A1 (de) 2010-08-18
EP2218515B1 EP2218515B1 (de) 2011-11-23

Family

ID=40790621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10152538A Not-in-force EP2218515B1 (de) 2009-02-06 2010-02-03 Zerstäuber mit einem Einwegventil

Country Status (4)

Country Link
US (1) US8408428B2 (de)
EP (1) EP2218515B1 (de)
CN (1) CN101797412B (de)
AT (1) ATE534470T1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286020B (zh) * 2013-07-02 2016-03-02 江苏新天宝机械有限公司 一种罐体中的清洗液喷头
EP3096889B1 (de) 2014-01-20 2019-10-09 Graco Minnesota Inc. Zerstäuber mit integrierten ventilsitzen
CA3035703A1 (en) * 2016-09-30 2018-04-05 Softhale Nv Atomiser, in particular inhaler, for atomising a liquid active agent to form an aerosol and a corresponding method
TWI703994B (zh) * 2017-11-06 2020-09-11 微邦科技股份有限公司 流體輸送裝置
CN111547368A (zh) * 2020-06-03 2020-08-18 麦嘉铖 一种出液控制机构及具有该出液控制机构的倒置式容器
CN111844655B (zh) * 2020-07-18 2021-12-03 宁波博纳机械有限公司 一种塑料产品加工用注塑机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2048416A5 (de) * 1969-08-27 1971-03-19 Pfeiffer Kg Erich
GB2176543A (en) * 1985-01-08 1986-12-31 Douglas Frank Corsette Manually operated pump
FR2885890A1 (fr) 2005-05-20 2006-11-24 Rexam Dispensing Systems Sas Dispositif pour la delivrance et l'admission d'un produit liquide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107043A (en) * 1977-03-03 1978-08-15 Creative Dispensing Systems, Inc. Inlet conduit fluid filter
GB8720978D0 (en) * 1987-09-07 1987-10-14 Bespak Plc Collapsible chamber metering valve
FR2731992B1 (fr) * 1995-03-21 1997-04-30 Oreal Distributeur de produit liquide ou pateux utilisable notamment en cosmetique
FR2885887B1 (fr) * 2005-05-20 2010-11-05 Rexam Dispensing Sys Pompe a pointeau pour la distribution de produit liquide
FR2917651B1 (fr) * 2007-06-20 2010-09-17 Rexam Dispensing Sys Pompe pour la distribution d'un produit liquide a amorcage ameliore

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2048416A5 (de) * 1969-08-27 1971-03-19 Pfeiffer Kg Erich
GB2176543A (en) * 1985-01-08 1986-12-31 Douglas Frank Corsette Manually operated pump
FR2885890A1 (fr) 2005-05-20 2006-11-24 Rexam Dispensing Systems Sas Dispositif pour la delivrance et l'admission d'un produit liquide

Also Published As

Publication number Publication date
US8408428B2 (en) 2013-04-02
EP2218515B1 (de) 2011-11-23
CN101797412B (zh) 2014-06-18
CN101797412A (zh) 2010-08-11
US20100213216A1 (en) 2010-08-26
ATE534470T1 (de) 2011-12-15

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