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EP2707148B1 - Pumpe zum dosieren und zur abgabe eines flüssigen oder viskosen produktes - Google Patents

Pumpe zum dosieren und zur abgabe eines flüssigen oder viskosen produktes Download PDF

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Publication number
EP2707148B1
EP2707148B1 EP12723130.6A EP12723130A EP2707148B1 EP 2707148 B1 EP2707148 B1 EP 2707148B1 EP 12723130 A EP12723130 A EP 12723130A EP 2707148 B1 EP2707148 B1 EP 2707148B1
Authority
EP
European Patent Office
Prior art keywords
pump
piston
product
chamber
punch
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.)
Not-in-force
Application number
EP12723130.6A
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English (en)
French (fr)
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EP2707148A1 (de
Inventor
Jacques Gerbron
Patrick Lagneaux
Jian Jun YUAN
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Individual
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Individual
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Publication of EP2707148A1 publication Critical patent/EP2707148A1/de
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Publication of EP2707148B1 publication Critical patent/EP2707148B1/de
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0062Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064Lift valves
    • B05B11/0067Lift valves having a valve seat located downstream the valve element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0062Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072A valve member forming part of an outlet opening
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/04Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/047Deformable containers producing the flow, e.g. squeeze bottles characterised by the outlet or venting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1073Springs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00Piston machines or pumps characterised by having positively-driven valving
    • F04B7/02Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated

Definitions

  • the present invention relates to a dosing pump and dispensing a liquid or viscous product, this pump being intended to be associated with a dispensing element forming part of a container containing said product.
  • the document US-A-4,830,284 discloses a dosing and dispensing pump of a product, in particular a liquid or a pasty substance, this product being contained in a receptacle on which the pump is fixed, for example by screwing onto a threaded portion carried by an element of this receptacle .
  • the dosing pump described in this document comprises in its interior a chamber, called pressure chamber, this chamber having an inlet for the product coming from the container and thus receiving this product prior to its distribution to the outside.
  • This chamber houses a piston that can move inside said chamber in the direction of its length, this piston being biased by a spring in a so-called rest position.
  • This chamber also communicates with a discharge chamber through an intermediate opening.
  • the delivery chamber communicates to the outside of the metering pump through an outlet opening of the product. This discharge opening is closed in the rest position of the piston by a shut-off valve.
  • the volume of this chamber is variable and its increase causes the opening of the shutter valve.
  • the metering pump operates in the following manner. Due to the action of a means for activating the dispensing of product to the outside, the product to be dispensed is introduced into the pressure chamber through the inlet opening of this chamber with the container. The piston is then moved from its rest position and no longer blocks the intermediate opening between the pressure chamber and the discharge chamber.
  • the product can therefore flow to the discharge chamber that it fills. Due to the pressure of the product in the discharge chamber, the volume of the discharge chamber is increased and the shut-off valve no longer closes the discharge opening of the metering pump. The product can therefore flow out of said pump.
  • the dosing pump according to this state of the art has several notorious disadvantages.
  • the first disadvantage is that the return spring is inside the pressure chamber. It is thus in contact with the product to be dispensed, which can both pollute the product to be dispensed and damage the return spring, for example by corrosion of said spring by the product if the latter is an acidic or basic substance or fouling of said spring by the product if it is viscous or pasty.
  • the second drawback is that the communication between the pressure chamber and the discharge chamber involves a high number of elements. Indeed in this document, there is provided a first elastic sleeve for the piston head in the first chamber cooperating with a sealing shoulder and a second elastic sleeve for the piston head in the discharge chamber. This communication should be simplified by not involving such a large number of elements.
  • the publication DE 10 2008 027 598-A1 shows a fluid dispenser whose head comprises a fluid outlet opening. A spring is housed to recall in position a piston moved during distribution. A disadvantage is that the tightness control of such an assembly is in practice difficult or impossible so that scrap is detected late. Another disadvantage is the complexity of the system.
  • This publication discloses a pump according to the preamble of claim 1. The problem underlying the present invention is to solve all or part of the disadvantages of current techniques.
  • a technical effect thus obtained is a protection of the return means housed in a sealed chamber to the product to be dispensed against any damage by said product, for example by fouling or corrosion of these means due to a deposit of product on these products. means or prolonged contact of these means with the product. This allows safer operation of the entire pump as well as an increased life of the various elements of this pump.
  • the peripheral wall of the pump comprises an orifice which serves as a mouthpiece for checking any leaks.
  • this type of pump is normally difficult to control and the orifice solves this problem, as described below.
  • the container has an advantageously collapsable reservoir of product, and an outer shell deformable by pressure on the shell exerting pressure outside the tank and initiating the flow of the product to the pump.
  • the sealed chamber is also intended to be used during phases of leak testing of the device. Indeed, by injecting a control gas (such as air) into the chamber, it is possible to detect possible leaks, at the level of the assembly between the piston and surrounding components including the needle and the areas in contact with the piston on its periphery.
  • a control gas such as air
  • the invention may comprise a hole, accessible from the outside, to cooperate either with means for injecting a control fluid through the hole, or with leak detection means (a pressure sensor for example) when injecting fluids at other locations of the device).
  • leak detection means a pressure sensor for example
  • the invention also relates to a reportable cap to be associated with a container containing a liquid or viscous product, characterized in that it incorporates such a metering pump and dispensing.
  • the invention relates to a container containing a liquid or viscous product and having a dispensing element of said product, characterized in that it comprises such a dosing pump and dispensing or such a plug reportable, the pump or cap being secured with said dispensing element.
  • the tank of the container is of flexible material, the pump being supplied with product by one or more manual pressures exerted on said reservoir and initiating the flow of the product to the pump.
  • the container has an advantageously collapsable reservoir of product and a bulb remotely connected to said reservoir by a conduit, one or more pressures exerted on said bulb being transmitted to the outside of the reservoir and initiating the flow of the product towards the pump.
  • the distribution of the product out of the container is by spraying, projection or flow.
  • the present invention relates to a pump 1 for dosing and dispensing a liquid or viscous product intended to be associated with the dispensing element 3 of a container 2 containing said product.
  • dispensing is meant any form of application of the product, for example spraying, spraying or flowing.
  • the dosing and dispensing pump 1 is integrally formed in a plug 4 which can be attached to any type of receptacle 2, mainly flexible tubes.
  • this plug 4 is screwed by a thread 8 on a dispensing element 3 which cap said container 2.
  • the container 2 will be described with the pump 1 dosing and dispensing disposed at its upper part.
  • This position is the conventional operating position of the pump 1 but it can operate when its longitudinal axis has an inclination relative to the vertical.
  • up and down will refer to what is opposite or turned towards the container 2.
  • the same will apply to the upper and lower parts, the upper parts being closer to the opening of the pump outlet as the lower parts and conversely with regard to their proximity to the container 2.
  • the dosing pump 1 receives the product from the container 2 through an inlet opening 18 and distributes the product to the outside of the pump through an outlet opening 7.
  • This outlet opening 7, in both embodiments shown to figures 1 and 6 forms the dispensing opening of the container 2.
  • the dosing pump 1 and distribution also has in its interior a first room called master bedroom 9.
  • This room main 9 receives a piston 10.
  • This piston 10 is hollow in its interior by having an internal pipe 11 for the passage of the liquid or viscous product to be metered and dispensed.
  • the internal pipe 11 passes at least partially through the piston 10 in its length.
  • This internal pipe 11 may also be called the compression chamber of the product to be dispensed and may have a tank-shaped element which can thus serve as a product reservoir to be dispensed but it is not mandatory.
  • the piston 10 has a body 10a extending in the length of the main chamber 9 and a head 10b at its end farthest from the container 2.
  • the body 10a of the piston 10 comprises inside the internal pipe 11 and defines this internal pipe 11 of the main chamber 9, this sealingly by not allowing the product to enter the remaining portion of the main chamber 9 not occupied by the piston.
  • This remaining portion of the main chamber 9, referenced 9a to the figure 1 and disposed between the body 10a of the piston 10 and the lower part of the piston head 10b 10, will hereinafter be called the separation chamber.
  • return means 16 of the piston 10 recalling the latter in a position in which its head 10b is in the farthest position of the container 2, this position being designated by high position, this for the closure of the discharge opening 7 of the pump 1, as will be described later.
  • return means 16 advantageously comprise a return spring 16 at least partially surrounding the body 10a of the piston, this spring being advantageously a helical spring wound around the body 10a. It may also be other flexible elements, such as at least one flexible blade, for example plastic.
  • the body 10a of the piston entirely traversed in the direction of its length by the internal pipe 11, cooperates with its lower end, that is to say its end closest to the container 2, directly with the inlet opening 18 of the pump 1 for the flow of the product in said pump 1 from the dispensing element 3 of the container 2 so that all the product leaving this distribution element 3 passes directly through the internal pipe 11 of the piston 10.
  • the end of the body 10a is advantageously guided in translation by a surface serving as a guide liner 20 for the base 21 of the piston 10a.
  • the guide liner is preferably cylindrical and may be formed in the cap 4, advantageously integrally with the latter.
  • a cylinder-to-cylinder contact is, in the embodiment illustrated in particular in FIG. figure 1 produced between the guide sleeve 20 and the base 21 of the piston, and seals at the inlet opening 18.
  • the base 21 has a flared profile widening towards the end of the body 10a of the piston 10.
  • this flared profile is curvilinear so as to form a bulge on the inner face and / or the outer face.
  • the flared shape preferably has a decrease in thickness towards the end of the body 10a so as to increase its deformability at this level.
  • the flared profile makes it possible to limit the friction between the jacket 20 and the base 21 by reducing the contact surface.
  • a natural propensity of the product to be delivered is added to pass through the internal pipe 11.
  • the upper part of the head 10b of the piston 10 delimits a separating chamber 9a and a third chamber, hereinafter referred to as the delivery chamber 5.
  • the head 10b is arranged to present the internal pipe 11 under its lower part and the discharge chamber 5 over a large part of its upper surface with the exception of the middle portion of this upper surface forming a support carrying the closure means 12a pointing to the outlet opening 7 of the pump 1 .
  • This discharge chamber 5 has a variable volume as will be seen later as will be detailed the characteristics of the closure means 12a and its support.
  • the closure means 12a carried by the head 10b of the piston that is to say the upper end opposite the container, is formed of the upper end or distal end of a needle 12 extending in the length of the piston 10, starting from the underside of the piston head 10b and projecting from the upper face of said head 10b towards the outlet opening of the pump.
  • the needle 12 thus forms the sealing means 12a and its support.
  • This needle 12 is formed of an upper end 12a, acting as a closure means of the outlet opening and a rod 12b received at least partially in the piston 10, Figures 2 to 5 its lower part and a portion of its middle part.
  • This upper end 12a of the needle 12 may have a rounded or pointed shape. A rounded or pointed shape ensures a better seal between the upper end 12a of the needle 12 and the outlet opening of the product out of the pump.
  • the rod 12b of the needle 12 may be of cylindrical shape.
  • the needle 12 has a longitudinal groove 6 on a major portion of its middle portion and on its lower part, this groove 6 passing entirely in the direction of its width.
  • This longitudinal groove 6 opens at its lower part above the internal pipe 11 of the piston 10 and thus allows the flow of the product contained in this pipe 11 through the portion of the needle 12 in which it extends.
  • the longitudinal groove 6 communicates in a sealed manner with said internal pipe 11.
  • the internal pipe 11 opens indirectly into the discharge chamber to allow the flow of the product into said chamber, since it is the groove 6 inside the needle 12 which forms the flow passage of the product being connected to the upper end of the inner pipe 11 and opening into the discharge chamber.
  • this longitudinal groove partially leaves the piston 10 when the needle 12 is disposed in and on the piston head 10b 10 to form the upper part.
  • This provides at least one slot 6a formed by a portion of this groove, this slot 6a acting as a filling opening to serve for the flow of the product from the internal pipe into the discharge chamber which had been referenced 5 to the figure 1 .
  • This delivery chamber is thus placed in communication with the container for the flow in this chamber of the product to be assayed and dispensed. Since the longitudinal groove passes through the needle 12 in all its width, it creates two slots forming two diametrically opposed openings.
  • the head 10b of the piston is composed of an outer flange 13 projecting laterally from the body 10a of the piston flaring upwards.
  • the piston head 10b also comprises an inner flange 14 surrounding the lower part and at least partially the middle part of the needle 12.
  • the piston head 10b therefore consists of the needle 12 and the flanges 13 and 14.
  • the outer flange 13 and the inner flange 14 define a space 15 between them.
  • This space 15 decreases as it approaches the body 10a of the piston 10.
  • This space 15 is part of the discharge chamber and advantageously serves as a storage tank. produced when it is contained in the delivery chamber.
  • the upper end 12a of the needle 12 serves as a closure element, this upper end 12a being able to close off the outlet opening 7 of the delivery chamber 5, thus preventing the product contained in the delivery chamber 5 from leaving the to be dispensed to the outside of the metering pump 1 and accordingly to the container 2.
  • the figure 6 shows another embodiment of the arrangement of a dosing and dispensing pump according to the present invention on a liquid or viscous product container to be dispensed.
  • the cap 4a of the container incorporates the dosing and dispensing pump 1 always towards its upper part but perpendicularly to a conduit 17 for feeding the product contained in the tank not shown in this figure.
  • This pipe 17 opens on the internal pipe 11 of the pump 1.
  • the pipe 17 and the inner pipe 11 then form between them an angle, at the figure 6 a right angle, in the cap 4a of the container.
  • the outlet opening 7 of the product is then positioned laterally to the plug 4a and not above it as was the case at the figure 1 .
  • the operation of the pump 1 is the same and it has the same constituent elements as those mentioned in the first embodiment shown in FIG. figure 1 , in particular with the presence of the needle 12 and its upper end 12a acting as a sealing element at the outlet opening 7 of the product.
  • an orifice 22 is formed through the peripheral wall 24 delimiting the main chamber 9.
  • the peripheral wall 24 is also, in the case of the illustration, embedded in a seat 23, for example integral with the remainder of the plug 4, so as to preserve an air passage between the outside and the orifice 22.
  • Several orifices 22 may be provided. Their placement may also differ from the example shown.
  • the return means 16 are as in the previous cases housed in the volume of the chamber 9a. By cons, they are here made in the form of an element whose material is elastically deformable. Preferably, an elastomer is used to form the biasing means 16 in this case.
  • the return means 16 are in the form of a cylindrical element, of circular section, extending between the guide sleeve 20 with respect to which the body of the piston 10 is slidably mounted and, at the other end, a bearing end 25 being applied to an application portion of the piston head. It is understood that when the fluid exerts a pressure in the discharge chamber 5, the piston compresses the return means 16 in the form of elastically deformable material. This compression is a booster energy store that is used to release the system to ensure the return to the closed position of the needle 12. Other forms are possible for the element of elastically deformable material.
  • the return means consist or comprise at least one flexible panel 26.
  • a single panel 26 is formed and extends from a base portion of the piston 28 connected to the peripheral wall. 24 tightly.
  • a hinge 27 constitutes the connection point between the base 28 and the flexible panel 26.
  • the flexible panel also has a hinge area 27 relative to the rest of the body 10a of the piston 10.
  • the flexible panel 26 has a geometric shape such that it comprises a component which is not oriented in the longitudinal direction of the assembly (the direction of translation of the piston 10). In this way, during a translational movement of the piston 10, the pan 26 undergoes a stress differing from a compression and in particular a bending that can be used as an elastic return element.
  • the joints 27 may comprise a constriction, that is to say make a variation in thickness relative to the thickness of the panel 26.
  • This embodiment is apparent from the figure 8 .
  • the body 10a and the head 10b are made of two separate rooms. These parts are assembled by a female male fitting system.
  • the body 10a which comprises a sleeve 30 of the female type adapted to receive the lower end of the piston head 10b.
  • the pipe 11 of the piston 10 is thus formed partly in the body part 10a and for another part in the head piece 10b.
  • the portions of the pipe 11 of these two parts are configured to achieve continuity and are preferably of the same shape and the same diameter.
  • this embodiment makes it possible in particular to differentiate the materials used for the body 10a and for the head 10b or to replace a defective part without having to replace the other part.
  • the figure 9 presents another possibility of realization of the return means.
  • it takes advantage of the bending pan 26.
  • a plurality of sections 26 are implemented and, more particularly, made in adjacent form so as to form bellows.
  • the panels 26 are here contiguous and of alternating direction around joints 27.
  • it is advantageous to implement panels which are parts of the length of the body 10a of frustoconical section.
  • the number of sections 26 is not limited and it will be noted that in the case shown in FIG. figure 9 eight alternating-direction flanks were used to form the bellows.
  • the piston 10 is directly secured to the base at the peripheral wall 24 so that its lower end does not have to translate vis-à-vis a guide jacket 20 as in the preceding embodiments. This eliminates the need for mobility and sealing.
  • EVA ethylene vinyl acetate
  • SEBS polystyrene-b-poly (ethylene-butylene) -b-polystyrene
  • one aspect of the invention consists in implementing a method of checking the seal at the piston 10.
  • a defined pressure gas is injected through the orifice 22. Any leaks are detected in case of pressure drop.
  • the control has the advantage of being operable without deterioration of the pump and without disassembly of its components. It can therefore be repetitive on many parts produced or even be systematic.
  • the separation chamber 9a therefore also serves as a sealing control volume.
  • the orifices 22 are releasable after control.
  • the method of the invention may be such that the orifice 22 is used to position a leak detector.
  • other parts of the pump are pressurized and leaks are detected at the orifice 22.
  • the test is started by the admission of a fluid of control via the inlet opening 18 of the pump and it is verified that no leak is observed at the orifice 22. Then, a control fluid is admitted via the outlet opening and the verification is carried out determining whether leaks are detected at the orifice 22.
  • the initial verification may then be resumed by the admission of control fluid through the inlet opening 18.
  • the pump 1 can operate in the following manner.
  • Pressure is exerted on an element of the container 2 containing the product to be dispensed. This may, for example, be done on the wall of the body of the container 2 even when it is of flexible or deformable material, especially when the container is made of plastic material and preferably when it has the shape of a tube, this by one or more manual pressures.
  • the discharge chamber 5 expands and its volume increases, which lowers the piston head 10b towards the bottom of the pump 1 and lowers the needle 12 with the entire head 10b. This occurs against the restoring force exerted by the return means 16 housed in the separation chamber 9a sealed and / or formed by the flexible panels.
  • the upper end 12a of the needle 12 serving as a closure element to the outlet opening 7 of the pump, is released from its closed position of this outlet opening 7 and no longer obturates it.
  • the product can leave the discharge chamber 5 to be dispensed to the outside, preferably by spraying, this especially for liquids.
  • the advantages of using a needle to shut off the outlet opening of the pump are among other things that the needle can be advantageously made as an independent part of the flanges forming with it the piston head. Indeed, as the needle and in particular its upper end is the part of the piston head receiving the most loads, this when it is pushed against the outlet opening of the pump under the action of the return means, the needle is more likely to wear than other parts forming the piston head. With a removable needle, it is possible to make its change without having to change the entire piston head and even the entire piston if the head is integral with the piston body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (15)

  1. Pumpe (1) zum Dosieren und zur Abgabe eines flüssigen oder viskosen Produktes, die dazu bestimmt ist, einem Behälter (2) zugeordnet zu werden, der das besagte Produkt enthält, wobei die besagte Pumpe (1) an einem unteren Ende genannten Längsende eine Eingangsöffnung (18) für den Durchlass des Produktes aus dem Behälter (2) aufweist, und an einem oberen Ende genannten Längsende eine Ausgangsöffnung (7) zur Abgabe des Produktes aus der Pumpe (1) heraus, wobei die besagte Pumpe (1) in ihrem Inneren eine Hauptkammer (9) aufweist, die einen Kolben (10) aufnimmt, der mit einem Korpus (10a) und einem Kopf (10b) versehen ist, wobei der besagte Kolben (10) in der Länge der Hauptkammer (9) mobil ist,
    - wobei der besagte Korpus (10a) eine interne Kanalisation (11) aufweist, die in Richtung seiner Länge durch ihn hindurchführt und für die Strömung des Produktes aus der besagten Eingangsöffnung (18) in seinem unteren Abschnitt mit der Eingangsöffnung (18) verbunden ist,
    - wobei der besagte Korpus (10a) und der untere Abschnitt des besagten Kopfes (10b) des Kolbens (10) die Hauptkammer (9) einnehmen, und nur eine Trennkammer (9a) leer lassen, die um den Korpus (10a) des Kolbens (10) herum angeordnet ist,
    - wobei der besagte Kopf (10b) des Kolbens durch einen externen Kragen (13) die Trennkammer (9a) vollkommen von einer Druckkammer (5) trennt, die in der Nähe der Ausgangsöffnung angeordnet ist, wobei der obere Abschnitt des besagten Kopfes (10b) in seinem oberen Mittelteil ein Mittel zum Verschließen (12a) der besagten Ausgangsöffnung (7) aufweist, wobei die interne Kanalisation (11) zum Abfluss des Produktes in die besagte Kammer (5) in ihrem oberen Abschnitt indirekt in die Druckkammer (5) mündet, wobei die besagte Druckkammer (5) ein Volumen aufweist, das je nach Bewegung des Kolbens (10) in der Hauptkammer (9) variabel ist,
    - wobei Rückstellmittel (16) vorgesehen sind, um auf den Kolben (10) einzuwirken, indem das Mittel zum Verschließen (12a) in die Schließposition der besagten Ausgangsöffnung (7) gesetzt wird,
    wobei die Trennkammer (9a) im Verhältnis zur Strömung des Produktes dicht ist, indem es von diesem nicht durchströmt wird,
    wobei das Mittel zum Verschließen (12a) das obere Ende einer Düsennadel (12) ist, die sich zwischen dem oberen Ende der internen Kanalisation (11) und der Ausgangsöffnung (7) der Pumpe (1) erstreckt, wobei die Düsennadel (12) einen Schaft (12b) und ein oberes Ende (12a) in einer abgerundeten Form oder in Form einer Spitze aufweist;
    und wobei die Düsennadel (12) einen Durchlass für das Produkt aus der internen Kanalisation (11) aufweist, indem sie in ihrem unteren Abschnitt an die besagte interne Kanalisation (11) angeschlossen ist, und zumindest eine Füllöffnung (6a), die in die Druckkammer (5) mündet, für die Strömung des besagten Produktes in die Druckkammer (5) und wobei der Durchlass durch eine längliche Nut (6) realisiert wird, die vom unteren Abschnitt der Düsennadel (12) gegenüber der internen Kanalisation (11) ausgeht, und in dichter Form mit der besagten Kanalisation (11) verbunden ist, wobei zumindest ein Abschnitt der Nut (6) einen Schlitz (6a) an der Peripherie der Düsennadel (12) bildet, wobei dieser Schlitz (6a) als Füllöffnung dient, und wobei sich die eine längliche Nut (6) über die gesamte Breite der Düsennadel (12) erstreckt, wobei zwei Abschnitte der Nut (6) jeweils einen Schlitz (6a) an der Peripherie der Düsennadel (12) bilden, wobei die besagten Schlitze (6a) gegenüberliegend an der besagten Peripherie angeordnet sind,
    dadurch gekennzeichnet, dass ein Abschnitt des Schaftes (12b) von einem internen Kragen (14) umgeben ist, wobei ein verbleibender Abschnitt des Schaftes (12b) und das obere Ende (12a) in abgerundeter Form oder als Spitze der Düsennadel (12) aus dem besagten inneren Kragen (14) nach oben überstehen, wobei der besagte innere Kragen (14) vom äußeren Kragen (13) umgeben ist, und dabei einen Raum (15) zwischen sich freilässt, wobei die Düsennadel (12) und die besagten Kragen (13, 14) den Kopf (10b) des Kolbens (10) bilden, wobei der innere Kragen (14) einen oberen kegelstumpfförmigen Abschnitt aufweist, der sich bis zum verbleibenden Abschnitt des Schaftes (12b) der Düsennadel (12) verjüngt, und dadurch, dass sich der Durchlass im verbleibenden Abschnitt des Schaftes (12b) der Düsennadel (12) befindet.
  2. Pumpe (1) nach dem vorhergehenden Anspruch, wobei die Schlitze (6a) unmittelbar über dem kegelstumpfförmigen Abschnitt des internen Kragens (14) in die Druckkammer (5) münden.
  3. Pumpe (1) nach dem vorhergehenden Anspruch, wobei die Hauptkammer (9) zumindest teilweise durch eine periphere Wand (24) eingegrenzt wird, die zumindest eine Öffnung aufweist, die einerseits in die Hauptkammer (9) und andererseits in die Außenseite der Pumpe (1) mündet.
  4. Pumpe (1) nach einem der vorhergehenden Ansprüche, wobei die Rückstellmittel (16) zumindest teilweise in der Trennkammer (9a) untergebracht sind.
  5. Pumpe (1) nach dem vorhergehenden Anspruch, wobei die Rückstellmittel (16) eine Spiralfeder oder zumindest eine flexible Klinge umfassen, die den Korpus (10a) des Kolbens (10) auf zumindest einem Teil seiner Länge umgeben.
  6. Pumpe (1) nach Anspruch 4, wobei die Rückstellmittel (16) ein Element aus einem elastisch verformbaren Material umfassen.
  7. Pumpe (1) nach dem vorhergehenden Anspruch, wobei das Element aus einem elastisch verformbaren Material ein zylindrischer Hohlkörper ist, der den Korpus (10a) des Kolbens (10) umgibt.
  8. Pumpe (1) nach einem der Ansprüche 4 bis 7, wobei die Rückstellmittel vollkommen in der Trennkammer (9a) untergebracht sind.
  9. Pumpe (1) nach einem der Ansprüche 1 bis 7, wobei die Rückstellmittel zumindest ein flexibles Teil (26) umfassen, das auf dem Korpus (10a) gebildet wird.
  10. Pumpe (1) nach dem vorhergehenden Anspruch, mehrere flexible Teile (26) umfassend und wobei zumindest zwei flexible Teile (26) konfiguriert sind, sodass sie einen Balg bilden.
  11. Pumpe (1) nach einem der vorhergehenden Ansprüche, wobei der Korpus (10a) und der Kopf (10b) zwei unterschiedliche eingepasste Teile sind.
  12. Pumpe (1) nach irgendeinem der Ansprüche 1 bis 8, wobei der Korpus (10a) des Kolbens (10) eine Basis (21) zu seinem freien Ende gegenüber dem Kopf (10a) umfasst, wobei die Basis (21) in Form einer Gleitpassung mit einer Führungshülse (20) zusammenwirkt, und wobei die Basis (21) ein internes Profil umfasst, das sich zum freien Ende des Korpus (10a) hin erweitert, und wobei die Stärke der Basis (21) in Richtung des freien Endes des Korpus (10a) abnimmt.
  13. Pumpe (1) nach dem vorhergehenden Anspruch, wobei das interne Profil geschwungen ist, um eine Konkavität zu bilden.
  14. Hinzufügbarer Verschluss (4, 4a), der dazu bestimmt ist, einem Behälter (2) zugeordnet zu werden, der ein flüssiges oder viskoses Produkt enthält, dadurch gekennzeichnet, dass er eine Pumpe (1) zum Dosieren und zur Abgabe nach irgendeinem der vorhergehenden Ansprüche enthält.
  15. Behälter (2), ein Reservoir für ein flüssiges oder viskoses Produkt umfassend, und ein Element zur Abgabe (3) des besagten Produktes aufweisend, dadurch gekennzeichnet, dass er eine Pumpe (1) zum Dosieren und zur Abgabe nach irgendeinem der Ansprüche 1 bis 13 oder einen hinzufügbaren Verschluss (4, 4a) nach dem vorhergehenden Anspruch enthält, wobei die Pumpe (1) oder der Verschluss (4, 4a) fest mit dem Element zur Abgabe (3) verbunden ist.
EP12723130.6A 2011-05-11 2012-05-11 Pumpe zum dosieren und zur abgabe eines flüssigen oder viskosen produktes Not-in-force EP2707148B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1154045A FR2975021B1 (fr) 2011-05-11 2011-05-11 Pompe de dosage et de distribution d'un produit liquide ou visqueux
PCT/EP2012/058717 WO2012152901A1 (fr) 2011-05-11 2012-05-11 Pompe de dosage et de distribution d'un produit liquide ou visqueux

Publications (2)

Publication Number Publication Date
EP2707148A1 EP2707148A1 (de) 2014-03-19
EP2707148B1 true EP2707148B1 (de) 2017-04-05

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EP12723130.6A Not-in-force EP2707148B1 (de) 2011-05-11 2012-05-11 Pumpe zum dosieren und zur abgabe eines flüssigen oder viskosen produktes

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US (1) US9353735B2 (de)
EP (1) EP2707148B1 (de)
DK (1) DK2707148T3 (de)
FR (1) FR2975021B1 (de)
WO (1) WO2012152901A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3004128B1 (fr) * 2013-04-08 2017-01-13 Aptar France Sas Tete de pulverisation amelioree.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009149825A1 (de) * 2008-06-10 2009-12-17 Meadwestvaco Calmar Gmbh Fluidaustragkopf

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE3315334A1 (de) 1983-04-28 1984-10-31 Pfeiffer Erich Gmbh & Co Kg Zerstaeuber- oder dosierpumpe
FR2671329B1 (fr) * 1991-01-07 1993-03-19 Valois Embout-poussoir a jets multiples et a fermeture.
US5842616A (en) * 1996-04-24 1998-12-01 Ter S.R.L. Atomized liquid dispenser applicable to manually operated pumps
DE19627228A1 (de) * 1996-07-05 1998-01-08 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
IT1294275B1 (it) * 1997-07-24 1999-03-24 Giovanni Albini Pulsante per l'erogazione di fluidi attraverso un ugello mobile sul pulsante stesso
FR2815611B1 (fr) * 2000-10-23 2003-04-11 Valois Sa Tete de distribution et distributeur de produit fluide comportant une telle tete de distribution
DE102005043258A1 (de) * 2004-09-14 2006-03-16 Eric Schliemann Vorrichtung zum dosierten Ausbringen eines Mediums
GB0610666D0 (en) * 2006-05-30 2006-07-05 Glaxo Group Ltd Fluid dispenser
DE102008027598A1 (de) * 2008-06-10 2009-12-24 Meadwestvaco Calmar Gmbh Fluidaustragkopf

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2009149825A1 (de) * 2008-06-10 2009-12-17 Meadwestvaco Calmar Gmbh Fluidaustragkopf

Also Published As

Publication number Publication date
FR2975021B1 (fr) 2014-03-07
US20150139834A1 (en) 2015-05-21
WO2012152901A1 (fr) 2012-11-15
DK2707148T3 (en) 2017-07-24
FR2975021A1 (fr) 2012-11-16
EP2707148A1 (de) 2014-03-19
US9353735B2 (en) 2016-05-31

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