EP1372865B1 - Fluid product dispensing pump - Google Patents

Fluid product dispensing pump Download PDF

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Publication number
EP1372865B1
EP1372865B1 EP02730329A EP02730329A EP1372865B1 EP 1372865 B1 EP1372865 B1 EP 1372865B1 EP 02730329 A EP02730329 A EP 02730329A EP 02730329 A EP02730329 A EP 02730329A EP 1372865 B1 EP1372865 B1 EP 1372865B1
Authority
EP
European Patent Office
Prior art keywords
pump
pump body
input valve
valve seat
plunger tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02730329A
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German (de)
French (fr)
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EP1372865A1 (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
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Filing date
Publication date
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Publication of EP1372865A1 publication Critical patent/EP1372865A1/en
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Publication of EP1372865B1 publication Critical patent/EP1372865B1/en
Anticipated expiration legal-status Critical
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    • 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
    • B05B11/1019—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element the inlet valve moving concurrently with the controlling element during whole pressure and aspiration strokes, e.g. a cage for an inlet valve ball being part of the controlling element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
    • B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke

Definitions

  • the present invention relates to a product dispensing pump fluid, according to the preamble of claim 1, and a fluid dispenser device incorporating such pump.
  • EP-A-0 795 354 discloses such a pump.
  • a pump generally comprises a body of pump which defines a pump chamber usually arranged between a inlet flap and an outlet flap.
  • the user actuates an actuating rod connected to a piston that slides in the pump body which usually causes the displacement of a second piston, called piston low and which slides in a part reduced diameter of the pump body until opening of the outlet valve which causes the expulsion under pressure of the product contained in the chamber of pump.
  • piston low a second piston
  • the actuating rod go back to his resting position, under the effect of a return spring, the product is sucked into inside the pump chamber through said inlet valve.
  • the present invention aims to overcome certain disadvantages which arise with this type of pump.
  • One of the aims of the present invention is to reduce dead volumes and the discharge of the pump.
  • the present invention also aims to improve the priming of this type of pump, which usually requires three or four strokes actuating the pump before obtaining a filled pump chamber totally.
  • the present invention thus also aims to reduce the number of the priming necessary to prime the pump.
  • the return spring of the pump is usually mounted between the bottom of the pump body and the inlet valve seat that is mounted floating inside said pump body.
  • the spring is in contact with the product, which can pose a number of problems when said spring is metallic, which is often the case.
  • US-4,511,069, FR-1,486 392 and DE-28 38 613 disclose such devices.
  • Another object of the present invention is to eliminate any contact between the return spring of the pump and the product to be dispensed.
  • the subject of the present invention is therefore a pump for dispensing fluid product, according to claim 1.
  • the pump body has an upper opening in which is assembled an actuating rod, and an inner opening in which is assembled the dip tube, said pump body or said tube diver having at said lower opening of the pump body a tubular portion extending axially inside the pump body, said inlet valve being sealingly connected to said tubular portion.
  • said valve seat inlet comprises upstream of said inlet valve element, in the direction flow of the product, an axial tube whose end cooperates with sealed with said tubular portion of the pump body or the plunger tube.
  • the return spring of the pump is arranged in the pump body between the inlet valve seat and the pump body or a element integral with the pump body, such as a portion of the dip tube.
  • said axial tube of the inlet valve seat slides from sealed manner inside or outside said tubular portion.
  • the inlet valve seat comprises upstream of the valve element, a radial passage through to allow evacuation to the air tank contained in the pump chamber before the first actuation of the pump.
  • the outlet valve comprises an outlet valve seat and an outlet valve member, said outlet valve member having an enlarged head cooperating with said outlet valve seat, said element of outlet valve being urged towards its closed position by the pressure of the product contained in the pump chamber, and moved mechanically to its opening position at the end of the operating stroke of the actuating rod.
  • the present invention also relates to a dispensing device of fluid product comprising a fluid reservoir and a pump made as described above.
  • the present invention relates to a pump comprising a pump body 10 in which at least one piston 20 slides, 30, and wherein a pump chamber 40 is defined between an inlet valve 50 and an outlet valve 60.
  • An object of the invention is to connect directly and sealing said inlet valve 50 to the plunger tube 70 which extends the pump body 10 inside a tank 2 (which is only very schematically in dashed lines in Figure 3). This tight connection between the inlet valve 50 and the plunger tube limits the dead volume of the contained product upstream of said inlet valve 50, which has the effect of limiting the backflow, to facilitate the priming of the pump, and to make it possible to return spring 5 of the pump out of contact with the product to be dispensed.
  • the pump comprises a body of pump 10 comprising an upper part of larger diameter 11 and a lower part of smaller diameter 12.
  • the upper part 11 has a upper opening in which is assembled an actuating rod 1 connected a first piston 20, called high piston, which slides in said part of more large diameter 11 of the pump body.
  • the lower part 12 of the pump body has a lower opening in which is assembled a dip tube 70, and in which also slides a second piston 30, called low piston.
  • a pump chamber 40 is defined between an inlet valve 50 and a valve of outlet 60.
  • the outlet valve 60 is formed at the level of the actuating rod 1, which defines the outlet valve seat 61, with which an element of outlet valve 69.
  • this valve element 69 is made under the shape of a rod provided with a radially enlarged head 68, so that said outlet valve member 69 is pressed against the valve seat 61 by the pressure of the product contained in the pump chamber 40 until said outlet valve member 69 is mechanically moved away from said valve seat 61, at the end of actuation stroke of the actuating rod 1.
  • the valve member 69 has a shoulder 67, which at the moment the expulsion cooperates with a part of the pump adapted to move it relative to its valve seat 61.
  • the inlet valve is formed by a valve seat 51 and an element of inlet valve 59, generally made in the form of a ball.
  • This ball can advantageously be made of glass or plastic.
  • the valve seat is mounted floating inside the pump body and cooperates with the lower piston 30 of so that it moves together with it when the pump is actuated.
  • the valve seat 51 is biased by the return spring of the pump 5 which therefore relies on the one hand on said valve seat 51 and on the other hand on the bottom of the pump body 10 or on a member 70 secured to said bottom of the pump body.
  • said inlet valve seat 51 is directly connected in a sealed manner to the dip tube 70.
  • said inlet valve seat 51 comprises, upstream of the inlet valve element 59 in the flow direction of the product, a tube axial axis 55 of reduced dimension which extends towards the bottom of the body of correspondingly, the pump body 10, or shown in the figures, an element 70 fixed in the bottom of said pump body 10, has a tubular portion extending axially inwardly of the body pump.
  • the lower end 56 of the axial tube 55 of the inlet valve seat 51 cooperates sealingly with said tubular portion 80.
  • this tubular portion 80 is part of the dip tube 70, but it is quite possible to form this tubular projection 80 directly in the bottom of the pump body 10. Similarly, the lower end 56 of the tube 55 slides in a sealed manner inside the tubular part 80, but it is conceivable to slide this lower end of the tube 55 on the outer wall of said tubular portion 80.
  • the dead volume of the pump is severely limited, as is its delivery. Actuation of the pump is therefore more reliable, and complete emptying of the tank is facilitated.

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  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The invention concerns a fluid product dispensing pump, comprising a pump body (10) wherein slides at least a piston (20, 30), a pump chamber (40) being defined between an intake valve (50) and an outlet valve (60), and said pump body (10) extending towards the inside of a reservoir (2) through a plunger tube (70), said intake valve (50) being tightly connected to said plunger tube (70), the pump comprising a return spring (5) returning said pump towards its neutral position. The invention is characterised in that said spring (5) is arranged to be totally off-contact with the fluid product.

Description

La présente invention concerne une pompe de distribution de produit fluide, selon le préambule de la revendication 1, et un dispositif de distribution de produit fluide incorporant une telle pompe.The present invention relates to a product dispensing pump fluid, according to the preamble of claim 1, and a fluid dispenser device incorporating such pump.

Le document EP-A-0 795 354 divulgue une telle pompe.EP-A-0 795 354 discloses such a pump.

De manière connue, une pompe comporte généralement un corps de pompe qui définit une chambre de pompe habituellement disposée entre un clapet d'entrée et un clapet de sortie. Pour distribuer le produit contenu dans la chambre de pompe, l'utilisateur actionne une tige d'actionnement reliée à un piston qui coulisse dans le corps de pompe ce qui entraíne généralement le déplacement d'un second piston, appelé piston bas et qui coulisse dans une partie de diamètre réduit du corps de pompe jusqu'à ouverture du clapet de sortie qui provoque l'expulsion sous pression du produit contenu dans la chambre de pompe. Lorsque l'utilisateur laisse remonter la tige d'actionnement vers sa position de repos, sous l'effet d'un ressort de rappel, du produit est aspiré à l'intérieur de la chambre de pompe à travers ledit clapet d'entrée.In known manner, a pump generally comprises a body of pump which defines a pump chamber usually arranged between a inlet flap and an outlet flap. To distribute the product contained in the pump chamber, the user actuates an actuating rod connected to a piston that slides in the pump body which usually causes the displacement of a second piston, called piston low and which slides in a part reduced diameter of the pump body until opening of the outlet valve which causes the expulsion under pressure of the product contained in the chamber of pump. When the user lets the actuating rod go back to his resting position, under the effect of a return spring, the product is sucked into inside the pump chamber through said inlet valve.

La présente invention a pour but de surmonter certains inconvénients qui se posent avec ce type de pompe.The present invention aims to overcome certain disadvantages which arise with this type of pump.

Ainsi, un inconvénient se pose en raison du volume mort relativement important qui existe en amont du clapet d'entrée de la chambre de pompe, dans le sens d'écoulement du produit. En effet, généralement le tube plongeur débouche dans le fond du corps de pompe de sorte que toute cette partie du corps de pompe qui est située en dessous du piston bas et du clapet d'entrée se remplit de produit. Ceci a pour effet d'induire un refoulement non négligeable, qui rend difficile la vidange complète du réservoir.So, a disadvantage arises because of the relatively dead volume important that exists upstream of the inlet valve of the pump chamber, in the flow direction of the product. Indeed, generally the dip tube opens into the bottom of the pump body so that whole body part pump which is located below the bottom piston and the inlet valve fills of product. This has the effect of inducing a non-negligible repression, which makes difficult the complete emptying of the tank.

Un des buts de la présente invention est de diminuer les volumes morts et le refoulement de la pompe.One of the aims of the present invention is to reduce dead volumes and the discharge of the pump.

La présente invention a également pour but d'améliorer l'amorçage de ce type de pompe, celui-ci nécessitant généralement trois ou quatre coups d'actionnement de la pompe avant d'obtenir une chambre de pompe remplie totalement. The present invention also aims to improve the priming of this type of pump, which usually requires three or four strokes actuating the pump before obtaining a filled pump chamber totally.

La présente invention a ainsi également pour but de diminuer le nombre de coups d'amorçage nécessaire pour amorcer la pompe.The present invention thus also aims to reduce the number of the priming necessary to prime the pump.

D'autre part, le ressort de rappel de la pompe est généralement monté entre le fond du corps de pompe et le siège de clapet d'entrée qui est monté flottant à l'intérieur dudit corps de pompe. Le ressort est donc en contact avec le produit, ce qui peut poser un certains nombres de problèmes lorsque ledit ressort est métallique, ce qui est souvent le cas. Les documents US-4 511 069, FR-1 486 392 et DE-28 38 613 divulguent de tels dispositifs.On the other hand, the return spring of the pump is usually mounted between the bottom of the pump body and the inlet valve seat that is mounted floating inside said pump body. The spring is in contact with the product, which can pose a number of problems when said spring is metallic, which is often the case. US-4,511,069, FR-1,486 392 and DE-28 38 613 disclose such devices.

Un autre but de la présente invention est de supprimer tout contact entre le ressort de rappel de la pompe et le produit à distribuer.Another object of the present invention is to eliminate any contact between the return spring of the pump and the product to be dispensed.

La présente invention a donc pour objet une pompe de distribution de produit fluide, selon la revendication 1.The subject of the present invention is therefore a pump for dispensing fluid product, according to claim 1.

Avantageusement, le corps de pompe comporte une ouverture supérieure dans laquelle est assemblée une tige d'actionnement, et une ouverture intérieure dans laquelle est assemblé le tube plongeur, ledit corps de pompe ou ledit tube plongeur comportant au niveau de ladite ouverture inférieure du corps de pompe une partie tubulaire s'étendant axialement à l'intérieur du corps de pompe, ledit clapet d'entrée étant relié de manière étanche à ladite partie tubulaire.Advantageously, the pump body has an upper opening in which is assembled an actuating rod, and an inner opening in which is assembled the dip tube, said pump body or said tube diver having at said lower opening of the pump body a tubular portion extending axially inside the pump body, said inlet valve being sealingly connected to said tubular portion.

Avantageusement, ledit siège de clapet d'entrée comporte en amont dudit élément de clapet d'entrée, dans le sens d'écoulement du produit, un tube axial dont une extrémité coopère de manière étanche avec ladite partie tubulaire du corps de pompe ou du tube plongeur. advantageously, said valve seat inlet comprises upstream of said inlet valve element, in the direction flow of the product, an axial tube whose end cooperates with sealed with said tubular portion of the pump body or the plunger tube.

Avantageusement, le ressort de rappel de la pompe est disposé dans le corps de pompe entre le siège de clapet d'entrée et le corps de pompe ou un élément solidaire du corps de pompe, tel qu'une partie du tube plongeur.Advantageously, the return spring of the pump is arranged in the pump body between the inlet valve seat and the pump body or a element integral with the pump body, such as a portion of the dip tube.

Avantageusement, ledit tube axial du siège de clapet d'entrée coulisse de manière étanche à l'intérieur ou à l'extérieur de ladite partie tubulaire.Advantageously, said axial tube of the inlet valve seat slides from sealed manner inside or outside said tubular portion.

Avantageusement, le siège de clapet d'entrée comporte en amont de l'élément de clapet, un passage radial traversant pour permettre l'évacuation vers le réservoir de l'air contenu dans la chambre de pompe avant le premier actionnement de la pompe.Advantageously, the inlet valve seat comprises upstream of the valve element, a radial passage through to allow evacuation to the air tank contained in the pump chamber before the first actuation of the pump.

Avantageusement, le clapet de sortie comporte un siège de clapet de sortie et un élément de clapet de sortie, ledit élément de clapet de sortie comportant une tête élargie coopérant avec ledit siège de clapet de sortie, ledit élément de clapet de sortie étant sollicité vers sa position de fermeture par la pression du produit contenu dans la chambre de pompe, et déplacé mécaniquement vers sa position d'ouverture en fin de course d'actionnement de la tige d'actionnement.Advantageously, the outlet valve comprises an outlet valve seat and an outlet valve member, said outlet valve member having an enlarged head cooperating with said outlet valve seat, said element of outlet valve being urged towards its closed position by the pressure of the product contained in the pump chamber, and moved mechanically to its opening position at the end of the operating stroke of the actuating rod.

La présente invention a également pour objet un dispositif de distribution de produit fluide comportant un réservoir de produit fluide et une pompe réalisée telle que décrite ci-dessus.The present invention also relates to a dispensing device of fluid product comprising a fluid reservoir and a pump made as described above.

D'autres caractéristiques et avantages de la présente invention apparaítront plus clairement au cours de la description détaillée suivante d'un mode de réalisation particulier de celle-ci, qui sera faite en référence aux dessins joints, donnés à titre d'exemples non limitatifs, et sur lesquels :

  • la figure 1 est une vue schématique en section transversale d'un mode de réalisation avantageux de la présente invention, en position de repos, avant le premier actionnement de la pompe ;
  • la figure 2 est une vue similaire à celle de la figure 1, en cours d'amorçage de ladite pompe ; et
  • la figure 3 est une vue similaire aux figures 1 et 2, en position d'actionnement de ladite pompe.
Other features and advantages of the present invention will appear more clearly in the following detailed description of a particular embodiment thereof, which will be made with reference to the accompanying drawings, given by way of non-limiting examples, and on which:
  • Figure 1 is a schematic cross-sectional view of an advantageous embodiment of the present invention, in the rest position, before the first actuation of the pump;
  • Figure 2 is a view similar to that of Figure 1, in the process of priming said pump; and
  • Figure 3 is a view similar to Figures 1 and 2, in the actuated position of said pump.

De manière générale, la présente invention concerne une pompe comportant un corps de pompe 10 dans laquelle coulisse au moins un piston 20, 30, et dans lequel une chambre de pompe 40 est définie entre un clapet d'entrée 50 et un clapet de sortie 60. Un objet de l'invention est de relier directement et de manière étanche ledit clapet d'entrée 50 au tube plongeur 70 qui prolonge le corps de pompe 10 à l'intérieur d'un réservoir 2 (qui n'est représenté que très schématiquement en pointillés sur la figure 3). Cette liaison étanche entre le clapet d'entrée 50 et le tube plongeur limite le volume mort du produit contenu en amont dudit clapet d'entrée 50, ce qui a pour conséquence de limiter le refoulement, de faciliter l'amorçage de la pompe, et de permettre de disposer le ressort de rappel 5 de la pompe hors de tout contact avec le produit à distribuer.In general, the present invention relates to a pump comprising a pump body 10 in which at least one piston 20 slides, 30, and wherein a pump chamber 40 is defined between an inlet valve 50 and an outlet valve 60. An object of the invention is to connect directly and sealing said inlet valve 50 to the plunger tube 70 which extends the pump body 10 inside a tank 2 (which is only very schematically in dashed lines in Figure 3). This tight connection between the inlet valve 50 and the plunger tube limits the dead volume of the contained product upstream of said inlet valve 50, which has the effect of limiting the backflow, to facilitate the priming of the pump, and to make it possible to return spring 5 of the pump out of contact with the product to be dispensed.

L'invention va maintenant être décrite plus spécifiquement en référence au mode de réalisation particulier représenté sur les dessins.The invention will now be described more specifically with reference in the particular embodiment shown in the drawings.

Selon ce mode de réalisation avantageux, la pompe comporte un corps de pompe 10 comportant une partie supérieure de plus grand diamètre 11 et une partie inférieure de plus petit diamètre 12. La partie supérieure 11 comporte une ouverture supérieure dans laquelle est assemblée une tige d'actionnement 1 reliée à un premier piston 20, appelé piston haut, qui coulisse dans ladite partie de plus grand diamètre 11 du corps de pompe. La partie inférieure 12 du corps de pompe comporte une ouverture inférieure dans laquelle est assemblé un tube plongeur 70, et dans laquelle coulisse également un second piston 30, appelé piston bas. Une chambre de pompe 40 est définie entre un clapet d'entrée 50 et un clapet de sortie 60. Le clapet de sortie 60 est formé au niveau de la tige d'actionnement 1, qui définit le siège de clapet de sortie 61, avec lequel coopère un élément de clapet de sortie 69. Avantageusement, cet élément de clapet 69 est réalisé sous la forme d'une tige pourvue d'une tête élargie radialement 68, de sorte que ledit élément de clapet de sortie 69 est plaqué contre le siège de clapet 61 par la pression du produit contenu dans la chambre de pompe 40 jusqu'à ce que ledit élément de clapet de sortie 69 soit mécaniquement déplacé en éloignement dudit siège de clapet 61, en fin de course d'actionnement de la tige d'actionnement 1. A cet effet, l'élément de clapet 69 comporte un épaulement 67, qui au moment de l'expulsion coopère avec une pièce de la pompe adaptée à déplacer celui-ci par rapport à son siège de clapet 61. According to this advantageous embodiment, the pump comprises a body of pump 10 comprising an upper part of larger diameter 11 and a lower part of smaller diameter 12. The upper part 11 has a upper opening in which is assembled an actuating rod 1 connected a first piston 20, called high piston, which slides in said part of more large diameter 11 of the pump body. The lower part 12 of the pump body has a lower opening in which is assembled a dip tube 70, and in which also slides a second piston 30, called low piston. A pump chamber 40 is defined between an inlet valve 50 and a valve of outlet 60. The outlet valve 60 is formed at the level of the actuating rod 1, which defines the outlet valve seat 61, with which an element of outlet valve 69. Advantageously, this valve element 69 is made under the shape of a rod provided with a radially enlarged head 68, so that said outlet valve member 69 is pressed against the valve seat 61 by the pressure of the product contained in the pump chamber 40 until said outlet valve member 69 is mechanically moved away from said valve seat 61, at the end of actuation stroke of the actuating rod 1. For this purpose, the valve member 69 has a shoulder 67, which at the moment the expulsion cooperates with a part of the pump adapted to move it relative to its valve seat 61.

Le fonctionnement général de cette pompe ne va pas être décrite plus amplement en détail dans la présente demande de brevet, puisque ceci a déjà été fait dans le cadre d'une demande de brevet français déposée le 23 octobre 2000 par le même déposant (n° de dépôt 00 13569).The general operation of this pump will not be described anymore amply in detail in this patent application, since this has already been made in the context of a French patent application filed on October 23, 2000 by the same applicant (filing number 00 13569).

Le clapet d'entrée est formé par un siège de clapet 51 et un élément de clapet d'entrée 59, généralement réalisé sous la forme d'une bille. Cette bille peut avantageusement être réalisée en verre ou en plastique. Le siège de clapet est monté flottant à l'intérieur du corps de pompe et coopère avec le piston bas 30 de telle sorte qu'il se déplace ensemble avec celui-ci lorsque la pompe est actionnée. Le siège de clapet 51 est sollicité par le ressort de rappel de la pompe 5 qui s'appuie donc d'une part sur ledit siège de clapet 51 et d'autre part sur le fond du corps de pompe 10 ou sur un élément 70 solidaire dudit fond du corps de pompe.The inlet valve is formed by a valve seat 51 and an element of inlet valve 59, generally made in the form of a ball. This ball can advantageously be made of glass or plastic. The valve seat is mounted floating inside the pump body and cooperates with the lower piston 30 of so that it moves together with it when the pump is actuated. The valve seat 51 is biased by the return spring of the pump 5 which therefore relies on the one hand on said valve seat 51 and on the other hand on the bottom of the pump body 10 or on a member 70 secured to said bottom of the pump body.

Selon un aspect de l'invention, ledit siège de clapet d'entrée 51 est directement relié de manière étanche au tube plongeur 70. Dans l'exemple représenté sur les figures, ledit siège de clapet d'entrée 51 comporte, en amont de l'élément de clapet d'entrée 59 dans le sens d'écoulement du produit, un tube axial 55 de dimension réduite qui s'étend en direction du fond du corps de pompe 10. De manière correspondante, le corps de pompe 10, ou comme représenté sur les figures, un élément 70 fixé dans le fond dudit corps de pompe 10, comporte une partie tubulaire s'étendant axialement vers l'intérieur du corps de pompe. L'extrémité inférieure 56 du tube axial 55 du siège de clapet d'entrée 51 coopère de manière étanche avec ladite partie tubulaire 80. Dans les exemples représentés sur les figures, cette partie tubulaire 80 fait partie du tube plongeur 70, mais il est tout à fait envisageable de former cette projection tubulaire 80 directement dans le fond du corps de pompe 10. De même, l'extrémité inférieure 56 du tube 55 coulisse de manière étanche à l'intérieur de la partie tubulaire 80, mais il est envisageable de faire coulisser cette extrémité inférieure du tube 55 sur la paroi extérieure de ladite partie tubulaire 80.According to one aspect of the invention, said inlet valve seat 51 is directly connected in a sealed manner to the dip tube 70. In the example shown in the figures, said inlet valve seat 51 comprises, upstream of the inlet valve element 59 in the flow direction of the product, a tube axial axis 55 of reduced dimension which extends towards the bottom of the body of correspondingly, the pump body 10, or shown in the figures, an element 70 fixed in the bottom of said pump body 10, has a tubular portion extending axially inwardly of the body pump. The lower end 56 of the axial tube 55 of the inlet valve seat 51 cooperates sealingly with said tubular portion 80. In the examples shown in the figures, this tubular portion 80 is part of the dip tube 70, but it is quite possible to form this tubular projection 80 directly in the bottom of the pump body 10. Similarly, the lower end 56 of the tube 55 slides in a sealed manner inside the tubular part 80, but it is conceivable to slide this lower end of the tube 55 on the outer wall of said tubular portion 80.

Le fait que le tube 55 relié au clapet d'entré 50 coopère de manière étanche avec le tube plongeur 70 a pour effet que le ressort de rappel 5 peut être disposé en dehors de tout contact avec le produit. Ceci peut notamment être le cas si la partie tubulaire 80 est assemblée de manière étanche dans l'ouverture inférieure du corps de pompe 10. Ceci favorise la stabilité du produit lorsque le ressort est réalisé en métal et, évite généralement tous les problèmes rencontrés avec des ressort métalliques. Ainsi, avec une bille 59 en verre ou en plastique, le produit fluide à distribuer ne contacte plus aucun élément métallique.The fact that the tube 55 connected to the inlet valve 50 cooperates with tight with the plunger tube 70 has the effect that the return spring 5 can be disposed outside any contact with the product. This can especially be the case if the tubular portion 80 is sealingly assembled in the opening lower the pump body 10. This promotes the stability of the product when the spring is made of metal and, usually avoids all the problems encountered with metal springs. Thus, with a ball 59 made of glass or plastic, the fluid product to be dispensed does not contact any metal element.

D'autre part, les dimensions internes du tube 55 et de la partie tubulaire 80 étant nettement inférieures à celles du corps de pompe 10, le volume mort de la pompe est fortement limité, de même que son refoulement. L'actionnement de la pompe est donc plus fiable, et la vidange complète du réservoir est facilitée.On the other hand, the internal dimensions of the tube 55 and the tubular part 80 being significantly lower than those of the pump body 10, the dead volume of the pump is severely limited, as is its delivery. Actuation of the pump is therefore more reliable, and complete emptying of the tank is facilitated.

Du fait de la coopération étanche entre le tube axial 55 du siège de clapet d'entrée 51 et la partie tubulaire 80 du tube plongeur 70, il est préférable de prévoir un passage radial traversant 53 en amont de la bille 59 du clapet d'entrée 50. En effet, lors de l'amorçage de la pompe, représenté sur la figure 2, l'air est comprimé et s'échappe non pas à travers le clapet de sortie 60 de la pompe qui reste fermé, mais en direction de la partie inférieure 12 du corps de pompe 10 en passant à l'intérieur du piston bas 30. Le siège de clapet d'entrée 51 coopérant de manière étanche avec le tube plongeur 70 et ledit tube plongeur 70 pouvant être monté de manière étanche dans le fond du corps de pompe 10, il est avantageux de prévoir ce passage d'air radial 53 pour permettre à l'air de s'échapper à travers ledit tube plongeur 70 vers l'intérieur du réservoir, lors de l'amorçage de la pompe. En raison des volumes morts inférieurs formés par cette liaison directe entre le tube plongeur 70 et la clapet d'entrée 50, l'amorçage est facilité, de sorte que la pompe peut fonctionner après seulement un ou deux actionnements de celle-ci.Due to the tight cooperation between the axial tube 55 of the valve seat 51 and the tubular portion 80 of the plunger tube 70, it is preferable to provide a radial passage through 53 upstream of the ball 59 of the inlet valve 50. Indeed, when priming the pump, shown in FIG. 2, the air is compressed and escapes not through the outlet valve 60 of the pump which remains closed, but in the direction of the lower part 12 of the pump body 10 in passing through the bottom piston 30. The cooperating inlet valve seat 51 of sealing manner with the plunger tube 70 and said plunger tube 70 being sealed in the bottom of the pump body 10, it is advantageous to provide this passage of radial air 53 to allow air to escape through said plunger tube 70 towards the inside of the tank, during the priming of the pump. Due to the lower dead volumes formed by this direct link between the plunger tube 70 and the inlet valve 50, the priming is facilitated, so that the pump can run after only one or two actuations of it.

La présente invention a été décrite en référence à un mode de réalisation particulier de celle-ci, mais il est entendu que diverses modifications peuvent y être apportées par l'homme de l'art, sans sortir du cadre de la présente invention telle que définie par les revendications annexées.The present invention has been described with reference to an embodiment particular, but it is understood that various modifications may be made to be provided by those skilled in the art, without departing from the scope of the present invention as defined by the appended claims.

Claims (8)

  1. A dispensing pump for a fluid product, including a pump body (10) in which at least one piston (20, 30) slides, a pump chamber (40) being defined between an input valve (50) and an output valve (60), and said pump body (10) extending towards the inside of a tank (2) through a plunger tube (70), said input valve (50) being sealably connected to said plunger tube (70), the pump comprising a return spring (5) which brings said pump back towards its rest position, said spring being positioned out of any contact with the fluid product, said input valve (50) including an input valve seat (51) and an input valve component (59), such as a ball, which selectively seals and opens said input valve (50) characterized in that said input valve seat (51) is movable within said pump body (10).
  2. A pump according to claim 1, wherein the return spring (5) of the pump is positioned in the pump body (10) between the input valve seat (51) and the pump body or a component (70) securely fixed to the pump body (10), such as a portion of the plunger tube.
  3. A pump according to claim 1 or 2, wherein the pump body (10) includes an upper aperture in which an actuating rod (1) is assembled, and a lower aperture in which the plunger tube (70) is assembled, said pump body (10) or said plunger tube (70) including at said lower aperture of the pump body (10), a tubular portion (80) axially extending inside the pump body (10), said input valve (50) being sealably connected to said tubular portion (80).
  4. A pump according to claim 3, wherein said input valve seat (51) includes, upstream from said input valve component (59) in the flow direction of the product, an axial tube (55), an end (56) of which sealably cooperates with said tubular portion (80) of the pump body (10) or plunger tube (70).
  5. A pump according to claim 4, wherein said axial tube (55) of the input valve seat (51) sealably slides inside or outside said tubular portion (80).
  6. A pump according to any of the preceding claims, wherein the input valve seat (51) includes, upstream from the valve component (59), a radial through-hole (53) for allowing the air contained in the pump chamber (40) to be discharged towards the tank before the first actuation of the pump.
  7. A pump according to any of the preceding claims, wherein the output valve (60) includes an output valve seat (61) and an output valve component (69), said output valve component (69) including an expanded head (68) cooperating with said output valve seat (61), said output valve component (69) being attracted to its closed position through the pressure of the product contained in the pump chamber (40), and mechanically moved to its open position at the end of the actuation stroke of the actuating rod (1).
  8. A dispensing device for a fluid product including a tank of fluid product, characterized in that it includes a pump according to any of the preceding claims.
EP02730329A 2001-04-04 2002-04-03 Fluid product dispensing pump Expired - Lifetime EP1372865B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0104594A FR2823184B1 (en) 2001-04-04 2001-04-04 FLUID PRODUCT DISPENSING PUMP
FR0104594 2001-04-04
PCT/FR2002/001160 WO2002081100A1 (en) 2001-04-04 2002-04-03 Fluid product dispensing pump

Publications (2)

Publication Number Publication Date
EP1372865A1 EP1372865A1 (en) 2004-01-02
EP1372865B1 true EP1372865B1 (en) 2005-06-29

Family

ID=8861945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02730329A Expired - Lifetime EP1372865B1 (en) 2001-04-04 2002-04-03 Fluid product dispensing pump

Country Status (7)

Country Link
US (1) US6938802B2 (en)
EP (1) EP1372865B1 (en)
JP (1) JP4484433B2 (en)
CN (1) CN1309482C (en)
DE (1) DE60204858T2 (en)
FR (1) FR2823184B1 (en)
WO (1) WO2002081100A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2832079B1 (en) * 2001-11-14 2004-07-30 Valois Sa DISPENSING HEAD AND FLUID PRODUCT DISPENSER COMPRISING SUCH A DISPENSING HEAD
ITMI20020249A1 (en) * 2002-02-11 2003-08-11 Microspray Delta Spa PERFECTLY SEALED DISPENSING PUMP APPLICABLE ON LIQUID CONTAINERS
FR2862106B1 (en) * 2003-11-07 2007-08-24 Valois Sas FLUID PRODUCT DELIVERY PUMP.
FR2878002B1 (en) * 2004-11-16 2011-01-21 Valois Sas FLUID PRODUCT DELIVERY PUMP AND DISPENSER HAVING SUCH A DELIVERY PUMP.
CN100494008C (en) * 2006-06-15 2009-06-03 丁要武 Spring external emulsion pump
FR2905941B1 (en) * 2006-09-20 2011-02-11 Valois Sas FLUID PRODUCT DISTRIBUTION ASSEMBLY AND DISPENSER HAVING SUCH A DISPENSING ASSEMBLY
GB2453330A (en) * 2007-10-01 2009-04-08 Toly Products Cosmetic compact
US8376192B2 (en) 2008-03-24 2013-02-19 Mary Kay Inc. Apparatus for dispensing fluids using a press-fit diptube
USD636668S1 (en) 2008-03-24 2011-04-26 Mary Kay Inc. Dip tubes
US9789502B2 (en) 2008-06-05 2017-10-17 Mary Kay Inc. Apparatus for dispensing fluids using a removable bottle
FR2933679B1 (en) * 2008-07-10 2010-09-03 Valois Sas DEVICE FOR DISPENSING FLUID PRODUCT.
FR2971768B1 (en) * 2011-02-18 2013-03-22 Valois Sas HEAD OF DISTRIBUTION OF FLUID PRODUCT.
FR2999960B1 (en) * 2012-12-20 2015-02-27 Aptar France Sas RECHARGEABLE FLUID PRODUCT DISPENSER.
KR101514811B1 (en) * 2014-06-02 2015-04-23 주식회사 아폴로산업 Foaming generater for squeeze bottle

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290043B (en) * 1966-03-12 1969-02-27 Albert Rudolf Nebulizer pump, especially for perfumes or other cosmetic liquids
DE2017878A1 (en) * 1969-04-22 1970-10-29 Society de Fabrication et de Distribution de Parfumerie et Cosmetique Diparco S.A., Neuilly-sur-Seine, Hauts-de-Seine (Prankreich) Valve for atomizing liquid products under pressure
US4056216A (en) * 1976-04-13 1977-11-01 The Risdon Manufacturing Company Liquid dispensing pump automatically sealable against leakage
DE2838613A1 (en) * 1978-09-05 1980-03-13 Seltmann Hans Juergen Atomising pump for aerosol dispenser - has suction tube connected directly to inlet valve to eliminate vapour locking
DE2919686A1 (en) * 1979-05-16 1981-03-12 Seltmann, Hans-Jürgen, 2000 Hamburg Single acting finger pressure operated atomiser pump - has foot valve at bottom of rise tube to permit operation in upside down position
US4278189A (en) * 1979-12-17 1981-07-14 Ethyl Products Company Accumulative pressure pump
JPS58500845A (en) * 1981-06-04 1983-05-26 デラウェア・ケミカルス・コーポレーション pump
US4437588A (en) * 1981-12-29 1984-03-20 Ethyl Products Company Accumulative pressure pump
US4591077A (en) * 1985-01-28 1986-05-27 Corsette Douglas Frank Continuous discharge dispenser
US4991747A (en) * 1988-10-11 1991-02-12 Risdon Corporation Sealing pump
US5409146A (en) * 1993-06-03 1995-04-25 Hazard; Robert E. Dispensing pump with positive shut-off
US5560520A (en) * 1995-08-07 1996-10-01 Calmar Inc. Precompression pump sprayer
FR2740114B1 (en) * 1995-10-19 1998-01-02 Innovation Rech Plastique Sa PRODUCT PACKAGING DEVICE WITH SUPPORT RING OF A MANUAL PUMP FOR DISPENSING IN UNIT DOSES
US5720419A (en) * 1996-03-11 1998-02-24 Calmar Inc. Pre-compression pump sprayer having improved inlet and discharge valving and an improved pump priming feature
US5738250A (en) * 1997-04-07 1998-04-14 Calmar Inc. Liquid dispensing pump having water seal
FR2784717B1 (en) * 1998-10-16 2001-12-07 Sofab LOW CAPACITY PUMP WITH IMPROVED COMPATIBILITY

Also Published As

Publication number Publication date
US6938802B2 (en) 2005-09-06
FR2823184A1 (en) 2002-10-11
WO2002081100A1 (en) 2002-10-17
CN1309482C (en) 2007-04-11
CN1509212A (en) 2004-06-30
FR2823184B1 (en) 2003-08-15
JP2004524152A (en) 2004-08-12
DE60204858T2 (en) 2006-04-20
DE60204858D1 (en) 2005-08-04
US20020175189A1 (en) 2002-11-28
JP4484433B2 (en) 2010-06-16
EP1372865A1 (en) 2004-01-02

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