EP1216104A1 - Improved pump for dispensing fluid product,and fluid product dispensing device comprising same - Google Patents

Improved pump for dispensing fluid product,and fluid product dispensing device comprising same

Info

Publication number
EP1216104A1
EP1216104A1 EP00960826A EP00960826A EP1216104A1 EP 1216104 A1 EP1216104 A1 EP 1216104A1 EP 00960826 A EP00960826 A EP 00960826A EP 00960826 A EP00960826 A EP 00960826A EP 1216104 A1 EP1216104 A1 EP 1216104A1
Authority
EP
European Patent Office
Prior art keywords
pump
pump body
ferrule
upper edge
air passage
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
EP00960826A
Other languages
German (de)
French (fr)
Other versions
EP1216104B1 (en
Inventor
Ludovic Petit
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.)
Aptar France SAS
Original Assignee
Valois 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 Valois SAS filed Critical Valois SAS
Publication of EP1216104A1 publication Critical patent/EP1216104A1/en
Application granted granted Critical
Publication of EP1216104B1 publication Critical patent/EP1216104B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B05B11/0005—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
    • 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
    • B05B11/00442—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 actuated by the difference between the atmospheric pressure and the pressure inside 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
    • B05B11/00444—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 with provision for filtering or cleaning the air flow drawn into 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
    • B05B11/01—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
    • 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
    • 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
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve

Definitions

  • the present invention relates to an improved fluid dispenser pump and a fluid dispenser device comprising such a pump. More particularly, the present invention relates to a fluid dispenser pump incorporating means for filtering and / or treating vent air.
  • the first solution consists in using an airless system, that is to say without air intake, in this case with a reservoir of product which decreases in volume with each dispensing to compensate for the depression created by the expulsion of a quantity of specific product. This can be done, for example, using a flexible bag that gradually empties or a follower piston placed in the tank.
  • the second solution is to treat or filter the incoming air, respectively, after each product distribution. To do this, it is advantageous to use filtration elements arranged in the venting air passage of the pump or of the distribution device.
  • document EP-0 189 549 discloses having a filter against the vertical side wall of the pump body incorporating a vent hole.
  • EP-0 800 869 discloses having a filter on the upper edge of the container neck.
  • Document WO 97/18902 discloses having a filter inside the pump body between the piston and said pump body.
  • the systems described above have the major drawback of a complicated implementation. he at least one component of the pump or of the dispensing device incorporating said pump must be modified, and assembly is thus made more complex. This therefore increases the cost of manufacture and assembly.
  • the present invention aims to provide a fluid dispenser pump and a fluid dispenser device comprising such a pump which does not reproduce the aforementioned drawbacks.
  • the object of the present invention is to provide such a fluid dispensing pump and such a fluid dispensing device comprising such a pump which make it possible to filter and / or treat the vent air in a simple and reliable manner, without having to modify any component of the pump or of the fluid dispenser device.
  • the present invention also aims to provide such a fluid dispenser pump and a fluid dispenser device incorporating such a pump, for which the implementation of the vent air filtration system is simplified and less expensive, in particular in terms of its industrialization.
  • the present invention therefore relates to a fluid dispenser pump comprising a pump body, a piston sliding in leaktight manner in said pump body between a rest position and a dispensing position, the upper edge of the pump body being fixed in a fixing ring intended to assemble said pump on a tank, an annular seal being disposed between said pump body and said fixing ring, said pump further comprising a vent air passage between the tank and the atmosphere, characterized in that a filtering and / or venting air treatment element is provided in said venting air passage, said element being disposed between said upper edge of the pump body and said fixing ring.
  • said vent air passage is open in all positions of the pump.
  • said annular seal forms the filtration element, said seal being permeable to air and impermeable to the fluid product distributed by said pump.
  • the pump comprises a ferrule mounted on the upper edge of the pump body between said upper edge on the one hand, and said annular seal on the other hand, said ferrule extending inside said body pump to cooperate with said piston in the rest position, the filter element being disposed between the upper edge of the pump body and said ferrule.
  • the upper edge of the pump body has a through bore defining a part of the vent air passage, said filtration element being disposed between said upper edge of the pump body and said ferrule, completely covering said through bore.
  • said filtration element comprises passage means for defining an air passage part between the ferrule and the annular seal.
  • said vent air passage is defined between the ferrule and said pump body so that the ferrule closes said air passage in the pump rest position, said air passage being open when said piston moves to its dispensing position.
  • said ferrule comprises a radial flange cooperating with the upper edge of the pump body, said flange incorporating an opening and / or passage means, such as groove (s) and / or rib (s) to define a portion of vent air passage.
  • said upper edge of the pump body comprises passage means, such as groove (s) and / or rib (s), to define a part for the passage of vent air.
  • said filtration element is disposed on the end wall of said upper edge of the pump body, between said means for passing said flange and said means for passing said pump body.
  • the pump comprises a ferrule mounted on the upper edge of the pump body between said upper edge on the one hand, and said annular seal on the other hand, said ferrule extending inside said body of pump for cooperating with said piston in the rest position of said piston, the filter element being disposed between said ferrule and said fixing ring.
  • the pump body incorporates a vent hole forming part of the vent passage defined between the ferrule and the pump body.
  • the present invention also relates to a device for dispensing a fluid product comprising such a dispensing pump as defined above.
  • FIG. 1 is a view schematic in cross section of a fluid dispenser pump according to a first embodiment of the present invention
  • - Figure 2 is an enlarged schematic view of a detail of Figure 1
  • Figure 3 is a schematic view similar to Figure 1 showing a second embodiment of the invention
  • Figure 4 is an enlarged schematic view of a detail of Figure 3
  • Figure 5 is a schematic sectional view transverse of a dispensing device comprising a pump according to a preferred embodiment of the invention
  • - Figure 6 is a schematic view similar to Figures 1 and 3 of an alternative embodiment of the invention
  • Figure 7 is an enlarged schematic view of a detail of FIG. 6
  • FIG. 8 is a schematic view of another alternative embodiment of the invention
  • FIG. 9 is a schematic view of yet another alternative embodiment of the invention.
  • the fluid dispensing pump comprises a pump body 10 in which a piston 20 slides in leaktight manner, advantageously connected to an actuating rod 21.
  • the pump body 10 is generally assembled on the neck of the pump. 'a tank 1 using a fixing ring 5, which can be any, in particular snap-on, screwable, or crimp.
  • the seal between the pump and the fixing ring 5 is produced by means of an annular seal 100, 200 and the sealing between the fixing ring 5 and the reservoir 1 is carried out by means of a neck seal 300.
  • a pump chamber 30 is defined between an inlet valve 40, 41 and an outlet valve 50, 51, so that the pump shown in the figures is a pre-compression pump.
  • the pump according to the invention includes a vent air passage 80 connecting the inside of the tank to the atmosphere.
  • this vent air passage 80 is open in all positions of the pump. It advantageously extends between the upper edge 11 of the pump body 10 and the fixing ring 5.
  • the annular seal 100 forms an element for filtering and / or treating the vent air.
  • it is impermeable to the fluid product contained in the tank, but permeable to air, by having a filtering action on the incoming air. This saves a part, namely the filter, which simplifies manufacturing and assembly and reduces costs.
  • the filter element 100 is separate from the seal 200 and is disposed between the upper edge 11 of the pump body 10 and a ferrule 60.
  • This ferrule 60 is it even arranged between the upper edge 11 of the pump body 10 and the fixing ring 5, with interposition of the seal 200.
  • the ferrule 60 extends inside the pump body 10 to cooperate with the piston 20 and define its rest position.
  • the ferrule 60 has a radial flange 61 which rests on the end wall of the upper edge 11 of the pump body, with interposition of the filter element.
  • the air passage 80 can be defined by a through bore 70 produced in the upper edge 11 of the pump body 10.
  • the filtration element 100 is then preferably disposed between said upper edge 11 of the pump body 10 and said ferrule 60, completely covering said bore 70.
  • said filtration element 100 may include passage means for defining an air passage part between the ferrule 60 and the annular seal 200 sealing between the pump and the fixing ring 5.
  • it is the ferrule 60 which can incorporate passage means to define an air passage part.
  • these passage means may include an opening 63 provided in the radial flange 61 of the ferrule 60.
  • ribs and / or grooves 62 may be formed in the radial flange, on its side in contact with the seal.
  • the vent air passage 80 is not open in all the positions of the pump.
  • said ferrule In the pump rest position, shown in Figure 1, said ferrule not only defines the piston rest position by forming a stop for the axial movement of said piston 20, but said ferrule 60 also cooperates sealingly with said piston to seal said vent air passage 80.
  • This vent air passage first passes between the actuating rod 21 and the upper end of the ferrule 60. It descends along the internal wall of the ferrule 60 to the lower end thereof, where it is closed by the piston 20 in the rest position.
  • vent air passage 80 is open at this location and it extends between the pump body 10 and the outside of the ferrule 60 up to the level of the upper edge 11 of the pump body 10. Then it passes between the outside of the pump body 10 and the fixing ring 5 and enters the inside the tank (not shown in Figure 1).
  • the element for filtering and / or treating the vent air 100 is also disposed between the upper edge 11 of the pump body 10 and said ferrule 60.
  • the arrows schematically show l vent air flow at this location.
  • this filter element 100 is permeable to air but impermeable to the product contained in the tank and / or the pump.
  • the radial flange 61 of the ferrule 60 preferably comprises passage means 62 such as one or more groove (s) and / or rib (s) to define a passage for venting air.
  • the upper edge 11 of the pump body 10 may also include passage means 12, such as one or more groove (s) and / or rib (s), to define an air passage.
  • the filtration element 100 is interposed between said passage means 12 of the pump body 10 and said passage means 62 of the ferrule 60.
  • the filtration element 100 which can be made in the form of a radial annular element, is very easily achievable and simple to assemble, without requiring significant modification of any component part of the pump. In the particular example shown in FIGS.
  • the filtration ring 100 is simply placed on the upper edge 11 of the pump body before the ferrule 60 is put in place.
  • the passage means 62, 12 or 102 , respectively in the shell 60, the pump body 10 or the filter element 100 are very simple and inexpensive to produce, and it is clear that any suitable passage means are possible without departing from the scope of the present invention.
  • Figures 6 to 9 show different embodiments in which the venting passage 80 extends first between the ferrule 60 and the fixing ring 5 and then between the ferrule 60 and the pump body 10.
  • the pump body 10 then has a vent hole 85 opening into the tank.
  • This implementation makes it possible to produce the neck seal 300 completely sealed on the pump body 10, and therefore to prevent any risk of contact of the product with the venting passage 80, the vent hole 85 being closed by the piston 20 in the pump rest position.
  • the neck seal 300 may include a valve 310, visible in Figure 9, to isolate the vent hole 85.
  • the ferrule 60 cooperates sealingly with the actuating rod 21, for example by means of a sealing lip 65 provided on the internal surface of the ferrule 60.
  • the seal 100 forms the filter in a similar manner to the embodiment of FIG. 5. In these variants, it is arranged between the radial flange 61 of the ferrule 60 and the fixing ring 5.
  • the filter 100 is disposed on the seal 200, these two elements being provided between the radial flange 61 of the ferrule 60 and the fixing ring 5.
  • the filter 100 is disposed between the seal 200 and the fixing ring.
  • the filter element can be made of any suitable material suitable for filtering and / or treating the vent air entering the interior of the tank and intended to come into contact with the product.

Landscapes

  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Compressor (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Abstract

The invention concerns a fluid product dispensing pump comprising a pump body (10), a piston (20) sealingly sliding in said pump body (10) between a neutral position and a dispensing position, the upper edge (11) of the pump body (10) being fixed in a fixing ring (5) for assembling said pump on a tank (1), an annular sealing joint (100, 200) being arranged between said pump body (10) and said fixing ring (5), said pump further comprising a ventilating air passage (80) between the tank and the ambient atmosphere. The invention is characterised in that an element filtering and/or treating the ventilating air (100) is provided in said ventilating air passage (80), said filtering element (100) being arranged between said upper edge (11) of the pump body and said fixing ring (5).

Description

Pompe de distribution de produit fluide améliorée, et dispositif de distribution de produit fluide comportant une telle pompe. Improved fluid dispensing pump, and fluid dispenser device including such a pump.
La présente invention concerne une pompe de distribution de produit fluide améliorée et un dispositif de distribution de produit fluide comportant une telle pompe. Plus particulièrement, la présente invention concerne une pompe de distribution de produit fluide incorporant des moyens de filtration et/ou de traitement de l'air d'éventation.The present invention relates to an improved fluid dispenser pump and a fluid dispenser device comprising such a pump. More particularly, the present invention relates to a fluid dispenser pump incorporating means for filtering and / or treating vent air.
Dans de nombreuses applications, notamment pharmaceutiques, il est souhaitable d'éviter d'incorporer des conservateurs dans le produit fluide à distribuer. Pour ce faire, deux solutions sont possibles. La première solution consiste à utiliser un système airless, c'est à dire sans reprise d'air, avec dans ce cas un réservoir de produit qui diminue de volume à chaque distribution pour compenser la dépression créée par l'expulsion d'une quantité de produit déterminé. Ceci peut être réalisé par exemple à l'aide d'une poche souple se vidant progressivement ou d'un piston suiveur disposé dans le réservoir. La seconde solution est de traiter, respectivement de filtrer l'air entrant, après chaque distribution de produit. Pour ce faire, on utilise avantageusement des éléments de filtration disposés dans le passage d'air d'éventation de la pompe ou du dispositif de distribution. Ainsi, le document EP-0 189 549 divulgue de disposer un filtre contre la paroi latérale verticale du corps de pompe incorporant un trou d'évent. Le documentIn many applications, in particular pharmaceuticals, it is desirable to avoid incorporating preservatives in the fluid product to be dispensed. To do this, two solutions are possible. The first solution consists in using an airless system, that is to say without air intake, in this case with a reservoir of product which decreases in volume with each dispensing to compensate for the depression created by the expulsion of a quantity of specific product. This can be done, for example, using a flexible bag that gradually empties or a follower piston placed in the tank. The second solution is to treat or filter the incoming air, respectively, after each product distribution. To do this, it is advantageous to use filtration elements arranged in the venting air passage of the pump or of the distribution device. Thus, document EP-0 189 549 discloses having a filter against the vertical side wall of the pump body incorporating a vent hole. The document
EP-0 800 869 divulgue de disposer un filtre sur le bord supérieur du col du récipient. Le document WO 97/18902 divulgue de disposer un filtre à l'intérieur du corps de pompe entre le piston et ledit corps de pompe. Les systèmes décrits ci-dessus présentent l'inconvénient majeur d'une mise en œuvre compliquée. Il faut modifier au moins une pièce constitutive de la pompe ou du dispositif de distribution incorporant ladite pompe, et l'assemblage est ainsi rendu plus complexe. Ceci augmente donc le coût de fabrication et d'assemblage. La présente invention a pour but de fournir une pompe de distribution de produit fluide et un dispositif de distribution de produit fluide comportant une telle pompe qui ne reproduisent pas les inconvénients précités.EP-0 800 869 discloses having a filter on the upper edge of the container neck. Document WO 97/18902 discloses having a filter inside the pump body between the piston and said pump body. The systems described above have the major drawback of a complicated implementation. he at least one component of the pump or of the dispensing device incorporating said pump must be modified, and assembly is thus made more complex. This therefore increases the cost of manufacture and assembly. The present invention aims to provide a fluid dispenser pump and a fluid dispenser device comprising such a pump which does not reproduce the aforementioned drawbacks.
La présente invention a pour but de fournir une telle pompe de distribution de produit fluide et un tel dispositif de distribution de produit fluide comportant une telle pompe qui permettent de filtrer et/ou de traiter l'air d'éventation de manière simple et fiable, sans avoir à modifier aucune pièce constitutive de la pompe ou du dispositif de distribution de produit fluide.The object of the present invention is to provide such a fluid dispensing pump and such a fluid dispensing device comprising such a pump which make it possible to filter and / or treat the vent air in a simple and reliable manner, without having to modify any component of the pump or of the fluid dispenser device.
La présente invention a également pour but de fournir une telle pompe de distribution de produit fluide et un dispositif de distribution de produit fluide incorporant une telle pompe, pour lesquels la mise en œuvre du système de filtration d'air d'éventation est simplifiée et moins coûteuse, en particulier au niveau de son industrialisation.The present invention also aims to provide such a fluid dispenser pump and a fluid dispenser device incorporating such a pump, for which the implementation of the vent air filtration system is simplified and less expensive, in particular in terms of its industrialization.
La présente invention a donc pour objet une pompe de distribution de produit fluide comportant un corps de pompe, un piston coulissant de manière étanche dans ledit corps de pompe entre une position de repos et une position de distribution, le bord supérieur du corps de pompe étant fixé dans une bague de fixation destinée à assembler ladite pompe sur un réservoir, un joint d'étanchéité annulaire étant disposé entre ledit corps de pompe et ladite bague de fixation, ladite pompe comportant en outre un passage d'air d'éventation entre le réservoir et l'atmosphère, caractérisée en ce qu'un élément de filtration et/ou de traitement d'air d'éventation est prévu dans ledit passage d'air d'éventation, ledit élément de filtration étant disposé entre ledit bord supérieur du corps de pompe et ladite bague de fixation.The present invention therefore relates to a fluid dispenser pump comprising a pump body, a piston sliding in leaktight manner in said pump body between a rest position and a dispensing position, the upper edge of the pump body being fixed in a fixing ring intended to assemble said pump on a tank, an annular seal being disposed between said pump body and said fixing ring, said pump further comprising a vent air passage between the tank and the atmosphere, characterized in that a filtering and / or venting air treatment element is provided in said venting air passage, said element being disposed between said upper edge of the pump body and said fixing ring.
Selon une première variante de réalisation, ledit passage d'air d'éventation est ouvert dans toutes les positions de la pompe.According to a first alternative embodiment, said vent air passage is open in all positions of the pump.
De préférence, ledit joint annulaire forme l'élément de filtration, ledit joint étant perméable à l'air et étanche au produit fluide distribué par ladite pompe.Preferably, said annular seal forms the filtration element, said seal being permeable to air and impermeable to the fluid product distributed by said pump.
Selon un autre mode de réalisation, la pompe comporte une virole montée sur le bord supérieur du corps de pompe entre ledit bord supérieur d'une part, et ledit joint annulaire d'autre part, ladite virole s 'étendant à l'intérieur dudit corps de pompe pour coopérer avec ledit piston dans la position de repos, l'élément de filtration étant disposé entre le bord supérieur du corps de pompe et ladite virole.According to another embodiment, the pump comprises a ferrule mounted on the upper edge of the pump body between said upper edge on the one hand, and said annular seal on the other hand, said ferrule extending inside said body pump to cooperate with said piston in the rest position, the filter element being disposed between the upper edge of the pump body and said ferrule.
Avantageusement, le bord supérieur du corps de pompe comporte un alésage traversant définissant une partie du passage d'air d'éventation, ledit élément de filtration étant disposé entre ledit bord supérieur du corps de pompe et ladite virole, en recouvrant complètement ledit alésage traversant .Advantageously, the upper edge of the pump body has a through bore defining a part of the vent air passage, said filtration element being disposed between said upper edge of the pump body and said ferrule, completely covering said through bore.
Avantageusement, ledit élément de filtration comporte des moyens de passage pour définir une partie de passage d'air entre la virole et le joint annulaire.Advantageously, said filtration element comprises passage means for defining an air passage part between the ferrule and the annular seal.
Selon une seconde variante de réalisation, ledit passage d'air d'éventation est défini entre la virole et ledit corps de pompe de telle sorte que la virole ferme ledit passage d'air en position de repos de la pompe, ledit passage d'air étant ouvert lorsque ledit piston se déplace vers sa position de distribution.According to a second alternative embodiment, said vent air passage is defined between the ferrule and said pump body so that the ferrule closes said air passage in the pump rest position, said air passage being open when said piston moves to its dispensing position.
Avantageusement, ladite virole comporte une bride radiale coopérant avec le bord supérieur du corps de pompe, ladite bride incorporant une ouverture et/ou des moyens de passage, tels que des rainure (s) et/ou nervure (s) pour définir une partie de passage d'air d' éventation.Advantageously, said ferrule comprises a radial flange cooperating with the upper edge of the pump body, said flange incorporating an opening and / or passage means, such as groove (s) and / or rib (s) to define a portion of vent air passage.
Avantageusement, ledit bord supérieur du corps de pompe comporte des moyens de passage, tels que des rainure (s) et/ou nervure (s), pour définir une partie de passage d'air d'éventation.Advantageously, said upper edge of the pump body comprises passage means, such as groove (s) and / or rib (s), to define a part for the passage of vent air.
Avantageusement, ledit élément de filtration est disposé sur la paroi d'extrémité dudit bord supérieur du corps de pompe, entre lesdits moyens de passage de ladite bride et lesdits moyens de passage dudit corps de pompe.Advantageously, said filtration element is disposed on the end wall of said upper edge of the pump body, between said means for passing said flange and said means for passing said pump body.
Selon une variante de réalisation avantageuse la pompe comporte une virole montée sur le bord supérieur du corps de pompe entre ledit bord supérieur d'une part, et ledit joint annulaire d'autre part, ladite virole s 'étendant à l'intérieur dudit corps de pompe pour coopérer avec ledit piston dans la position de repos dudit piston, l'élément de filtration étant disposé entre ladite virole et ladite bague de fixation.According to an advantageous alternative embodiment the pump comprises a ferrule mounted on the upper edge of the pump body between said upper edge on the one hand, and said annular seal on the other hand, said ferrule extending inside said body of pump for cooperating with said piston in the rest position of said piston, the filter element being disposed between said ferrule and said fixing ring.
Avantageusement, le corps de pompe incorpore un trou d'évent formant partie du passage d'éventation défini entre la virole et le corps de pompe.Advantageously, the pump body incorporates a vent hole forming part of the vent passage defined between the ferrule and the pump body.
La présente invention a également pour objet un dispositif de distribution de produit fluide comportant une telle pompe de distribution telle que définie ci- dessus.The present invention also relates to a device for dispensing a fluid product comprising such a dispensing pump as defined above.
Les avantages et caractéristiques de la présente invention apparaîtront plus clairement au cours de la description détaillée suivante de plusieurs modes de réalisation de l'invention, donnés à titre d'exemples non limitatifs en référence aux dessins joints sur lesquels : la figure 1 est une vue schématique en section transversale d'une pompe de distribution de produit fluide selon une première variante de réalisation de la présente invention, - la figure 2 est une vue schématique agrandie d'un détail de la figure 1, la figure 3 est une vue schématique similaire à la figure 1, montrant une seconde variante de réalisation de l'invention, la figure 4 est une vue schématique agrandie d'un détail de la figure 3, la figure 5 est une vue schématique en section transversale d'un dispositif de distribution comportant une pompe selon un mode de réalisation préféré de l'invention, - la figure 6 est une vue schématique similaire aux figures 1 et 3 d'une variante de réalisation de 1 ' invention, la figure 7 est une vue schématique agrandie d'un détail de la figure 6, - la figure 8 est une vue schématique d'une autre variante de réalisation de l'invention, et la figure 9 est une vue schématique d'encore une autre variante de réalisation de l'invention.The advantages and characteristics of the present invention will appear more clearly during the following detailed description of several embodiments of the invention, given by way of nonlimiting examples with reference to the accompanying drawings in which: FIG. 1 is a view schematic in cross section of a fluid dispenser pump according to a first embodiment of the present invention, - Figure 2 is an enlarged schematic view of a detail of Figure 1, Figure 3 is a schematic view similar to Figure 1 showing a second embodiment of the invention, Figure 4 is an enlarged schematic view of a detail of Figure 3, Figure 5 is a schematic sectional view transverse of a dispensing device comprising a pump according to a preferred embodiment of the invention, - Figure 6 is a schematic view similar to Figures 1 and 3 of an alternative embodiment of the invention, Figure 7 is an enlarged schematic view of a detail of FIG. 6, FIG. 8 is a schematic view of another alternative embodiment of the invention, and FIG. 9 is a schematic view of yet another alternative embodiment of the invention.
En référence aux figures, la pompe de distribution de produit fluide comporte un corps de pompe 10 dans lequel coulisse de manière étanche un piston 20, avantageusement relié à une tige d' actionnement 21. Le corps de pompe 10 est généralement assemblé sur le col d'un réservoir 1 à l'aide d'une bague de fixation 5, qui peut être quelconque, notamment encliquetable, vissable, ou à sertir. L'étanchéité entre la pompe et la bague de fixation 5 est réalisée au moyen d'un joint annulaire 100, 200 et l'étanchéité entre la bague de fixation 5 et le réservoir 1 est réalisée au moyen d'un joint de col 300. Dans le corps de pompe 10, une chambre de pompe 30 est définie entre un clapet d'entrée 40, 41 et un clapet de sortie 50, 51, de sorte que la pompe représentée sur les figures est une pompe à pré- compression. Lorsque l'utilisateur actionne une tête de distribution (non représentée), celle-ci coopère avec la tige d' actionnement 21 pour déplacer le piston 20 de manière étanche dans le corps de pompe 10. Ce déplacement entraîne la fermeture du clapet d'entrée 40 de sorte que le volume de produit est défini à l'intérieur de la chambre de pompe 30. Ensuite, le clapet de sortie 50 s'ouvre par la pression créée à l'intérieur de la chambre de pompe 30, de sorte que ladite dose de produit est expulsée à travers le canal d'expulsion 6.With reference to the figures, the fluid dispensing pump comprises a pump body 10 in which a piston 20 slides in leaktight manner, advantageously connected to an actuating rod 21. The pump body 10 is generally assembled on the neck of the pump. 'a tank 1 using a fixing ring 5, which can be any, in particular snap-on, screwable, or crimp. The seal between the pump and the fixing ring 5 is produced by means of an annular seal 100, 200 and the sealing between the fixing ring 5 and the reservoir 1 is carried out by means of a neck seal 300. In the pump body 10, a pump chamber 30 is defined between an inlet valve 40, 41 and an outlet valve 50, 51, so that the pump shown in the figures is a pre-compression pump. When the user actuates a dispensing head (not shown), this cooperates with the actuating rod 21 to move the piston 20 in a sealed manner in the pump body 10. This movement causes the inlet valve 40 to close so that the volume of product is defined inside the pump chamber 30. Then, the outlet valve 50 opens by the pressure created inside the pump chamber 30, so that said dose of product is expelled through the expulsion channel 6.
Pour éviter la création d'une dépression à l'intérieur du réservoir, la pompe selon l'invention comporte un passage d'air d'éventation 80 reliant l'intérieur du réservoir à l'atmosphère. Selon une première variante de réalisation représentée sur les figures 3 à 5 , ce passage d'air d'éventation 80 est ouvert dans toutes les positions de la pompe. Il s'étend avantageusement entre le bord supérieur 11 du corps de pompe 10 et la bague de fixation 5.To avoid the creation of a vacuum inside the tank, the pump according to the invention includes a vent air passage 80 connecting the inside of the tank to the atmosphere. According to a first alternative embodiment shown in Figures 3 to 5, this vent air passage 80 is open in all positions of the pump. It advantageously extends between the upper edge 11 of the pump body 10 and the fixing ring 5.
Dans un mode de réalisation préféré de l'invention, représenté sur les figures 5, 6, 7 et 9 le joint annulaire 100 forme un élément de filtration et/ou de traitement de l'air d'éventation. Il est dans ce cas étanche au produit fluide contenu dans le réservoir, mais perméable à l'air, en ayant une action filtrante sur l'air entrant. Ceci permet d'économiser une pièce, à savoir le filtre, ce qui simplifie la fabrication et l'assemblage et diminue les coûts.In a preferred embodiment of the invention, shown in FIGS. 5, 6, 7 and 9, the annular seal 100 forms an element for filtering and / or treating the vent air. In this case, it is impermeable to the fluid product contained in the tank, but permeable to air, by having a filtering action on the incoming air. This saves a part, namely the filter, which simplifies manufacturing and assembly and reduces costs.
Dans un autre mode de réalisation avantageux, représenté sur les figures 3 et 4 , l'élément de filtration 100 est distinct du joint 200 et est disposé entre le bord supérieur 11 du corps de pompe 10 et une virole 60. Cette virole 60 est elle-même disposée entre le bord supérieur 11 du corps de pompe 10 et la bague de fixation 5, avec interposition du joint d'étanchéité 200. La virole 60 s'étend à l'intérieur du corps de pompe 10 pour coopérer avec le piston 20 et définir sa position de repos. Avantageusement, la virole 60 comporte une bride radiale 61 qui repose sur la paroi d'extrémité du bord supérieur 11 du corps de pompe, avec interposition de l'élément de filtration.In another advantageous embodiment, shown in Figures 3 and 4, the filter element 100 is separate from the seal 200 and is disposed between the upper edge 11 of the pump body 10 and a ferrule 60. This ferrule 60 is it even arranged between the upper edge 11 of the pump body 10 and the fixing ring 5, with interposition of the seal 200. The ferrule 60 extends inside the pump body 10 to cooperate with the piston 20 and define its rest position. Advantageously, the ferrule 60 has a radial flange 61 which rests on the end wall of the upper edge 11 of the pump body, with interposition of the filter element.
Avantageusement, le passage d'air 80 peut être défini par un alésage traversant 70 réalisé dans le bord supérieur 11 du corps de pompe 10. L'élément de filtration 100 est alors de préférence disposé entre ledit bord supérieur 11 du corps de pompe 10 et ladite virole 60, en recouvrant complètement ledit alésage 70. Eventuellement, ledit élément de filtration 100 peut comporter des moyens de passage pour définir une partie de passage d'air entre la virole 60 et le joint annulaire 200 réalisant l'étanchéité entre la pompe et la bague de fixation 5. En variante, c'est la virole 60 qui peut incorporer des moyens de passage pour définir une partie de passage d'air. Dans ce cas, ces moyens de passage peuvent comporter une ouverture 63 prévue dans la bride radiale 61 de la virole 60. De plus, des nervures et/ou rainures 62 peuvent être ménagées dans la bride radiale, sur son côté en contact avec le joint 200. Selon une seconde variante de réalisation représentée sur les figures 1 et 2 , le passage d'air d'éventation 80 n'est pas ouvert dans toutes les positions de la pompe. En position de repos de la pompe, représentée sur la figure 1, ladite virole définit non seulement la position de repos du piston en formant butée pour le déplacement axial dudit piston 20, mais ladite virole 60 coopère également de manière étanche avec ledit piston pour obturer ledit passage d'air d'éventation 80. Ce passage d'air d'éventation passe d'abord entre la tige d' actionnement 21 et l'extrémité supérieure de la virole 60. Il descend le long de la paroi interne de la virole 60 jusqu'à l'extrémité inférieure de celle-ci, où il est obturé par le piston 20 en position de repos. Lorsque le piston 20 se déplace vers sa position de distribution lors de 1 ' actionnement de la pompe, le passage d'air d'éventation 80 est ouvert à cet endroit et il se prolonge entre le corps de pompe 10 et l'extérieur de la virole 60 jusqu'au niveau du bord supérieur 11 du corps de pompe 10. Ensuite, il passe entre l'extérieur du corps de pompe 10 et la bague de fixation 5 et pénètre à l'intérieur du réservoir (non représentés sur la figure 1) .Advantageously, the air passage 80 can be defined by a through bore 70 produced in the upper edge 11 of the pump body 10. The filtration element 100 is then preferably disposed between said upper edge 11 of the pump body 10 and said ferrule 60, completely covering said bore 70. Optionally, said filtration element 100 may include passage means for defining an air passage part between the ferrule 60 and the annular seal 200 sealing between the pump and the fixing ring 5. As a variant, it is the ferrule 60 which can incorporate passage means to define an air passage part. In this case, these passage means may include an opening 63 provided in the radial flange 61 of the ferrule 60. In addition, ribs and / or grooves 62 may be formed in the radial flange, on its side in contact with the seal. 200. According to a second alternative embodiment shown in FIGS. 1 and 2, the vent air passage 80 is not open in all the positions of the pump. In the pump rest position, shown in Figure 1, said ferrule not only defines the piston rest position by forming a stop for the axial movement of said piston 20, but said ferrule 60 also cooperates sealingly with said piston to seal said vent air passage 80. This vent air passage first passes between the actuating rod 21 and the upper end of the ferrule 60. It descends along the internal wall of the ferrule 60 to the lower end thereof, where it is closed by the piston 20 in the rest position. When the piston 20 moves to its dispensing position when the pump is actuated, the vent air passage 80 is open at this location and it extends between the pump body 10 and the outside of the ferrule 60 up to the level of the upper edge 11 of the pump body 10. Then it passes between the outside of the pump body 10 and the fixing ring 5 and enters the inside the tank (not shown in Figure 1).
Dans cette variante, l'élément de filtration et/ou de traitement de l'air d'éventation 100 est également disposé entre le bord supérieur 11 du corps de pompe 10 et ladite virole 60. Sur la figure 2, les flèches montrent schématiquement l'écoulement de l'air d'éventation à cet endroit. De préférence, cet élément de filtration 100 est perméable à l'air mais étanche au produit contenu dans le réservoir et/ou la pompe.In this variant, the element for filtering and / or treating the vent air 100 is also disposed between the upper edge 11 of the pump body 10 and said ferrule 60. In FIG. 2, the arrows schematically show l vent air flow at this location. Preferably, this filter element 100 is permeable to air but impermeable to the product contained in the tank and / or the pump.
La bride radiale 61 de la virole 60 comporte de préférence des moyens de passage 62 tel qu'une ou plusieurs rainure (s) et/ou nervure (s) pour définir un passage d'air d'éventation. De manière similaire, le bord supérieur 11 du corps de pompe 10 peut également comporter des moyens de passage 12, tel qu'une ou plusieurs rainure (s) et/ou nervure (s), pour définir un passage d'air. Ainsi, dans l'exemple représenté sur la figure 2, l'élément de filtration 100 est interposé entre lesdits moyens de passage 12 du corps de pompe 10 et lesdits moyens de passage 62 de la virole 60. L'élément de filtration 100, qui peut être réalisé sous la forme d'un élément annulaire radial, est très facilement réalisable et simple à assembler, sans nécessiter de modification importante d'une quelconque pièce constitutive de la pompe. Dans l'exemple particulier représenté sur les figures 1 à 4, l'anneau de filtration 100 est simplement posé sur le bord supérieur 11 du corps de pompe avant la mise en place de la virole 60. Les moyens de passage 62, 12 ou 102, respectivement dans la virole 60, le corps de pompe 10 ou l'élément de filtration 100 sont très simples et peu coûteux à réaliser, et il est clair que des moyens de passage quelconque appropriés sont envisageables sans sortir du cadre de la présente invention.The radial flange 61 of the ferrule 60 preferably comprises passage means 62 such as one or more groove (s) and / or rib (s) to define a passage for venting air. Similarly, the upper edge 11 of the pump body 10 may also include passage means 12, such as one or more groove (s) and / or rib (s), to define an air passage. Thus, in the example shown in FIG. 2, the filtration element 100 is interposed between said passage means 12 of the pump body 10 and said passage means 62 of the ferrule 60. The filtration element 100, which can be made in the form of a radial annular element, is very easily achievable and simple to assemble, without requiring significant modification of any component part of the pump. In the particular example shown in FIGS. 1 to 4, the filtration ring 100 is simply placed on the upper edge 11 of the pump body before the ferrule 60 is put in place. The passage means 62, 12 or 102 , respectively in the shell 60, the pump body 10 or the filter element 100 are very simple and inexpensive to produce, and it is clear that any suitable passage means are possible without departing from the scope of the present invention.
Les figures 6 à 9 montrent différentes variantes de réalisation dans lesquelles le passage d'éventation 80 s'étend d'abord entre la virole 60 et la bague de fixation 5 puis entre la virole 60 et le corps de pompe 10. Le corps de pompe 10 comporte alors un trou d'évent 85 débouchant dans le réservoir. Cette mise en œuvre permet de réaliser le joint de col 300 complètement étanche sur le corps de pompe 10, et donc d'empêcher tout risque de contact du produit avec le passage d'éventation 80, le trou d'évent 85 étant obturé par le piston 20 en position de repos de la pompe. Eventuellement, le joint de col 300 peut comporter un clapet 310, visible sur la figure 9, pour isoler le trou d'évent 85. Dans ces variantes des figures 6 à 9, la virole 60 coopère de manière étanche avec la tige d' actionnement 21, par exemple au moyen d'une lèvre d'étanchéité 65 prévue sur la surface interne de la virole 60. Dans le mode de réalisation des figures 6, 7 et 9, le joint 100 forme le filtre de manière similaire au mode de réalisation de la figure 5. Il est dans ces variantes disposé entre la bride radiale 61 de la virole 60 et la bague de fixation 5. Dans l'exemple de la figure 8, le filtre 100 est disposé sur le joint 200, ces deux éléments étant prévus entre la bride radiale 61 de la virole 60 et la bague de fixation 5. En particulier, le filtre 100 est disposé entre le joint 200 et la bague de fixation. L'élément de filtration peut être réalisé en un matériau quelconque approprié adapté à filtrer et/ou à traiter l'air d'éventation pénétrant à l'intérieur du réservoir et destiné à entrer en contact avec le produit.Figures 6 to 9 show different embodiments in which the venting passage 80 extends first between the ferrule 60 and the fixing ring 5 and then between the ferrule 60 and the pump body 10. The pump body 10 then has a vent hole 85 opening into the tank. This implementation makes it possible to produce the neck seal 300 completely sealed on the pump body 10, and therefore to prevent any risk of contact of the product with the venting passage 80, the vent hole 85 being closed by the piston 20 in the pump rest position. Optionally, the neck seal 300 may include a valve 310, visible in Figure 9, to isolate the vent hole 85. In these variants of Figures 6 to 9, the ferrule 60 cooperates sealingly with the actuating rod 21, for example by means of a sealing lip 65 provided on the internal surface of the ferrule 60. In the embodiment of FIGS. 6, 7 and 9, the seal 100 forms the filter in a similar manner to the embodiment of FIG. 5. In these variants, it is arranged between the radial flange 61 of the ferrule 60 and the fixing ring 5. In the example of FIG. 8, the filter 100 is disposed on the seal 200, these two elements being provided between the radial flange 61 of the ferrule 60 and the fixing ring 5. In particular, the filter 100 is disposed between the seal 200 and the fixing ring. The filter element can be made of any suitable material suitable for filtering and / or treating the vent air entering the interior of the tank and intended to come into contact with the product.
Bien que représentée en relation avec des types de pompes particuliers, il est entendu, que la présente invention s'applique à tous types de pompes de distribution de produit fluide. D'autres modifications sont également envisageables sans sortir du cadre de la présente invention dont la portée est définie par les revendications annexées. Although shown in relation to particular types of pumps, it is understood that the present invention applies to all types of pumps. distribution of fluid. Other modifications can also be envisaged without departing from the scope of the present invention, the scope of which is defined by the appended claims.

Claims

Revendications claims
1.- Pompe de distribution de produit fluide comportant un corps de pompe (10) , un piston (20) coulissant de manière étanche dans ledit corps de pompe (10) entre une position de repos et une position de distribution, le bord supérieur (11) du corps de pompe (10) étant fixé dans une bague de fixation (5) destinée à assembler ladite pompe sur un réservoir (1), un joint d'étanchéité annulaire (100, 200) étant disposé entre ledit corps de pompe (10) et ladite bague de fixation (5) , ladite pompe comportant en outre un passage d'air d'éventation (80) entre le réservoir (1) et l'atmosphère, caractérisée en ce qu'un élément de filtration et/ou de traitement d'air d'éventation (100) est prévu dans ledit passage d'air d'éventation (80), ledit élément de filtration (100) étant disposé entre ledit bord supérieur (11) du corps de pompe et ladite bague de fixation (5) .1.- Fluid product distribution pump comprising a pump body (10), a piston (20) sliding in leaktight manner in said pump body (10) between a rest position and a distribution position, the upper edge ( 11) of the pump body (10) being fixed in a fixing ring (5) intended to assemble said pump on a tank (1), an annular seal (100, 200) being arranged between said pump body ( 10) and said fixing ring (5), said pump further comprising a venting air passage (80) between the tank (1) and the atmosphere, characterized in that a filtration element and / or vent air treatment (100) is provided in said vent air passage (80), said filter element (100) being disposed between said upper edge (11) of the pump body and said ring fixing (5).
2.- Pompe selon la revendication 1, dans laquelle ledit passage d'air d'éventation (80) est ouvert dans toutes les positions de la pompe (20) . 2.- Pump according to claim 1, wherein said vent air passage (80) is open in all positions of the pump (20).
3.- Pompe selon la revendication 1 ou 2 , dans laquelle ledit joint annulaire (100) forme l'élément de filtration, ledit joint (100) étant perméable à l'air et étanche au produit fluide distribué par ladite pompe.3.- Pump according to claim 1 or 2, wherein said annular seal (100) forms the filtration element, said seal (100) being permeable to air and impermeable to the fluid product distributed by said pump.
4.- Pompe selon la revendication 1 ou 2 , dans laquelle la pompe comporte une virole (60) montée sur le bord supérieur (11) du corps de pompe (10) entre ledit bord supérieur d'une part, et ledit joint annulaire (200) d'autre part, ladite virole (60) s 'étendant à l'intérieur dudit corps de pompe (10) pour coopérer avec ledit piston (20) dans la position de repos dudit piston (20) , l'élément de filtration (100) étant disposé entre le bord supérieur (11) du corps de pompe (10) et ladite virole (60) . 4.- Pump according to claim 1 or 2, wherein the pump comprises a ferrule (60) mounted on the upper edge (11) of the pump body (10) between said upper edge on the one hand, and said annular seal ( 200) on the other hand, said ferrule (60) extending inside said pump body (10) to cooperate with said piston (20) in the rest position of said piston (20), the filter element (100) being disposed between the upper edge (11) of the pump body (10) and said ferrule (60).
5.- Pompe selon la revendication 4, dans laquelle le bord supérieur (11) du corps de pompe (10) comporte un alésage traversant (70) définissant une partie du passage d'air d'éventation (80), ledit élément de filtration (100) étant disposé entre ledit bord supérieur (11) du corps de pompe (10) et ladite virole (60), en recouvrant complètement ledit alésage traversant (70) .5.- Pump according to claim 4, wherein the upper edge (11) of the pump body (10) has a through bore (70) defining a part of the vent air passage (80), said filter element (100) being disposed between said upper edge (11) of the pump body (10) and said ferrule (60), completely covering said through bore (70).
6.- Pompe selon la revendication 5, dans laquelle ledit élément de filtration (100) comporte des moyens de passage pour définir une partie de passage d'air entre la virole (60) et le joint annulaire (200) .6.- Pump according to claim 5, wherein said filtration element (100) comprises passage means for defining an air passage part between the ferrule (60) and the annular seal (200).
7.- Pompe selon les revendications 1 et 4, dans laquelle ledit passage d'air d'éventation (80) est défini entre la virole (60) et ledit corps de pompe (10) de telle sorte que la virole (60) ferme ledit passage d'air (80) en position de repos de la pompe, ledit passage d'air (80) étant ouvert lorsque ledit piston (20) se déplace vers sa position de distribution.7.- Pump according to claims 1 and 4, wherein said vent air passage (80) is defined between the ferrule (60) and said pump body (10) so that the ferrule (60) closes said air passage (80) in the pump rest position, said air passage (80) being open when said piston (20) moves to its dispensing position.
8.- Pompe selon l'une quelconque des revendications 4 à 7, dans laquelle ladite virole (60) comporte une bride radiale (61) coopérant avec le bord supérieur (11) du corps de pompe (10) , ladite bride (61) incorporant une ouverture (63) et/ou des moyens de passage (62) , tels que des rainure (s) et/ou nervure (s) pour définir une partie de passage d'air d'éventation.8.- Pump according to any one of claims 4 to 7, wherein said ferrule (60) comprises a radial flange (61) cooperating with the upper edge (11) of the pump body (10), said flange (61) incorporating an opening (63) and / or passage means (62), such as groove (s) and / or rib (s) to define a part for the passage of vent air.
9.- Pompe selon la revendication 7 ou 8 , dans laquelle ledit bord supérieur (11) du corps de pompe (10) comporte des moyens de passage (12), tels que des rainure (s) et/ou nervure (s), pour définir une partie de passage d'air d'éventation.9.- Pump according to claim 7 or 8, wherein said upper edge (11) of the pump body (10) comprises passage means (12), such as groove (s) and / or rib (s), to define a vent air passage part.
10.- Pompe selon les revendications 7, 8 et 9, dans laquelle ledit élément de filtration (100) est disposé sur la paroi d'extrémité dudit bord supérieur (11) du corps de pompe (10) , entre lesdits moyens de passage (62) de ladite bride (60) et lesdits moyens de passage (12) dudit corps de pompe (10) . 10.- Pump according to claims 7, 8 and 9, wherein said filter element (100) is disposed on the end wall of said upper edge (11) of the pump body (10), between said passage means ( 62) of said flange (60) and said passage means (12) of said pump body (10).
11. - Pompe selon l'une quelconque des revendications 1 à 3, dans lequel la pompe comporte une virole (60) montée sur le bord supérieur (11) du corps de pompe (10) entre ledit bord supérieur d'une part, et ledit joint annulaire (200) d'autre part, ladite virole (60) s 'étendant à l'intérieur dudit corps de pompe (10) pour coopérer avec ledit piston (20), l'élément de filtration (100) étant disposé entre ladite virole (60) et ladite bague de fixation (5) . 11. - Pump according to any one of claims 1 to 3, in which the pump comprises a ferrule (60) mounted on the upper edge (11) of the pump body (10) between said upper edge on the one hand, and said annular seal (200) on the other hand, said ferrule (60) extending inside said pump body (10) to cooperate with said piston (20), the filter element (100) being disposed between said ferrule (60) and said fixing ring (5).
12. - Pompe selon l'une quelconque des revendications précédentes, dans lequel le corps de pompe (10) incorpore un trou d'évent (85) formant partie du passage d'éventation (80) défini entre la virole (60) et le corps de pompe (10) . 12. - Pump according to any one of the preceding claims, in which the pump body (10) incorporates a vent hole (85) forming part of the venting passage (80) defined between the ferrule (60) and the pump body (10).
13.- Dispositif de distribution de produit fluide, caractérisé en ce qu' il comporte une pompe de distribution selon l'une quelconque des revendications 1 à 12. 13. A fluid product dispensing device, characterized in that it comprises a dispensing pump according to any one of claims 1 to 12.
EP20000960826 1999-09-09 2000-09-07 Improved pump for dispensing fluid product,and fluid product dispensing device comprising same Expired - Lifetime EP1216104B1 (en)

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FR9911262A FR2798368B1 (en) 1999-09-09 1999-09-09 IMPROVED FLUID PRODUCT DISPENSING PUMP, AND FLUID PRODUCT DISPENSING DEVICE COMPRISING SUCH A PUMP
FR9911262 1999-09-09
PCT/FR2000/002475 WO2001017690A1 (en) 1999-09-09 2000-09-07 Improved pump for dispensing fluid product,and fluid product dispensing device comprising same

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EP1216104A1 true EP1216104A1 (en) 2002-06-26
EP1216104B1 EP1216104B1 (en) 2004-05-06

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EP (1) EP1216104B1 (en)
JP (1) JP4778652B2 (en)
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FR2798368A1 (en) 2001-03-16
DE60010488T2 (en) 2005-05-12
EP1216104B1 (en) 2004-05-06
FR2798368B1 (en) 2001-11-23
WO2001017690A1 (en) 2001-03-15
JP4778652B2 (en) 2011-09-21
DE60010488D1 (en) 2004-06-09
US7040511B1 (en) 2006-05-09
CN1373692A (en) 2002-10-09
CN1213814C (en) 2005-08-10
JP2003518216A (en) 2003-06-03

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