EP0286925B1 - Dispositif pour la distribution de liquides - Google Patents

Dispositif pour la distribution de liquides Download PDF

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Publication number
EP0286925B1
EP0286925B1 EP88105328A EP88105328A EP0286925B1 EP 0286925 B1 EP0286925 B1 EP 0286925B1 EP 88105328 A EP88105328 A EP 88105328A EP 88105328 A EP88105328 A EP 88105328A EP 0286925 B1 EP0286925 B1 EP 0286925B1
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EP
European Patent Office
Prior art keywords
discharge
channel
pump
valve
compressed air
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
EP88105328A
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German (de)
English (en)
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EP0286925A2 (fr
EP0286925A3 (en
Inventor
Karl-Heinz Fuchs
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 Radolfzell GmbH
Original Assignee
Ing Erich Pfeiffer GmbH
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Publication date
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Publication of EP0286925A2 publication Critical patent/EP0286925A2/fr
Publication of EP0286925A3 publication Critical patent/EP0286925A3/de
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Publication of EP0286925B1 publication Critical patent/EP0286925B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
    • B05B7/0031—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns
    • B05B7/0037—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
    • B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump
    • B05B9/0822—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump a discharge device being fixed to the container

Definitions

  • the invention relates to a discharge device according to the preamble of claim 1.
  • a discharge device is known for example from US-A-3 860 150.
  • the pump is mostly designed to act directly on the medium to be conveyed, i.e. designed the medium in the pump chamber under delivery pressure pushing piston pump, so that with a pump piston stroke only a quantity of medium dependent on the size of the pump chamber can be delivered.
  • the medium in larger or smaller amounts, for example by eye, in a simple manner, as is the case, for example, with cosmetic or similar media to be foamed.
  • the invention has for its object to provide a discharge device of the type mentioned, which makes it possible in a simple manner to transfer the medium into a single one Discharge position, i.e. in a single continuous discharge process, regardless of the pump's lifting capacity, in a larger or smaller quantity.
  • the compressed-air pump which can be actuated by pressure actuation with a handle, expediently has a pump chamber, as a result of which the outlet or.
  • Media channel is assigned a feed channel that can be closed against the discharge direction for the stored medium and the media channel is open in the discharge position of the discharge device.
  • the discharge channel and the inlet channel in the discharge position can be connected directly to one another, essentially bypassing the pump chamber, to form a media channel passing between an inlet opening on the container side and the discharge opening.
  • the preferably essentially pressure-tight container can be placed under a gas overpressure with the aid of the compressed air pump above the media level, that is to say can be charged with a substantially greater delivery capacity than the pump, for which purpose the inlet channel is kept closed. If the medium is now to be discharged, then only the channel connection between the inlet opening and the outlet opening needs to be established or opened, so that any quantity of the medium can then be discharged in one pass until the stated conveying capacity is exhausted.
  • the gas which is prestressed in the manner of a capacity in the container or in the media storage space, can be fed between the inlet opening and the outlet opening at the same time as the medium flowing through the media channel in a branch flow and can thereby be admixed, the gas then supplied for example, for foaming the medium before or in the area of the closable point of the inlet channel.
  • a partial stroke of the pump handle extending from the initial position of the pump over a larger part of the actuation stroke serves for the exclusive actuation of the compressed air pump, which can also be repeated over several strokes, for charging the pressure of the container, during a subsequent partial stroke, in particular extending to the end of the pump stroke serves to establish the open media channel connection between the inlet opening and the discharge opening, so that both functions can be triggered in succession with one-handed actuation of only a single handle.
  • the discharge device can be designed to be particularly compact and at least substantially axially symmetrical over the entire length of the pump chamber and of the valve arrangements associated with the media channel if the media channel is guided through the pump chamber in an essentially sealed manner.
  • the outlet channel can be transferred to its discharge position in simply moved together with the pump piston and transferred to its position, which is essentially close to the inlet channel, to form the media channel.
  • the discharge device 1 shown in FIGS. 1 to 4 is provided for pressure-tight, possibly detachable attachment to the narrowed neck of a bottle-shaped container 2, which forms a storage space for the medium and a compressed gas storage above the media level, the discharge device 1 engaging in the container neck fills almost the entire neck.
  • the discharge device 1 has an essentially axially symmetrical compressed air pump 3, which is designed as a push piston pump and which has a fastening cap which engages over the container neck 4, how a cap provided with an internal thread is centered with respect to the container neck and is tensioned with the interposition of an annular seal against the end face of the container neck.
  • the compressed air pump 3 has an essentially cylindrical cylinder housing 5, which is relatively closely matched to the inner cross section of the neck of the container 2 indicated by dash-dotted lines in FIG. 2 and is essentially cup-shaped.
  • the cylinder housing 5 has an enlarged housing flange 6 which adjoins it via an annular disk-shaped projection, in the annular jacket part of which forms the associated end of the cylinder housing 5, an essentially annular disk-shaped cylinder cover 7 is inserted and is axially so by resilient detonation is securely fastened that the cylinder cover 7 rests with prestress on the inside of the annular disk-shaped projection and a projecting annular projection engages in the center of the cylinder housing 5.
  • the associated shoulder surface of the housing flange 6 serves to support the front surface of the container neck or on the associated ring seal.
  • the cylinder flange 6 engages with its outer circumference and its end face centered in an annular recessed inner recess of the fastening cap 4, with which it can be clamped against the container neck.
  • the compressed air pump 3 thus forms a structural unit which can be assembled together with the cap 4.
  • the cylinder housing 5 encloses a pump chamber 8 of the compressed air pump 3 that extends almost over its entire length and forms with the inner surface of its jacket a piston raceway 9 for a pot-shaped, essentially one-piece pump piston 10, the opposite with two at the ends of its jacket part obliquely directed sealing lips is guided sealed on this piston raceway 9.
  • the pump piston 10 is tubular with an outgoing from its bottom and less than half in outside diameter piston shaft 11, which is so large and lies in its central axis, which protrudes essentially beyond the outside of the bottom of the pump piston 10 and penetrates a central opening of the cylinder cover 7 and the associated section of the fastening cap 4 to the outside.
  • An actuating head 12 protruding from the associated end of the fastening cap 4 is fastened to the piston shaft 11, which engages in an end collar of the fastening cap 4 with a reduced diameter and can be displaced in the axial direction of the pump 3 up to the stop on the cylinder cover 7.
  • the actuating head 12 has on the inside a tubular socket, in which the piston shaft 11 engages for fastening and which projects through the cylinder cover 7 into the pump chamber 8 at the end of the pump stroke.
  • the pump piston 10 is loaded with a return spring 13 located inside the pump chamber 8, which is designed as a helical compression spring and with one end on the inside of the bowl bottom 16 of the pump piston 10 and the other end on the ring-shoulder-shaped bowl bottom 17 of the cylinder housing 5 biased.
  • a return spring 13 located inside the pump chamber 8, which is designed as a helical compression spring and with one end on the inside of the bowl bottom 16 of the pump piston 10 and the other end on the ring-shoulder-shaped bowl bottom 17 of the cylinder housing 5 biased.
  • the compressed air pump 3 has at least one suction check valve 14 and at least one discharge check valve 15 for filling and emptying the pump chamber 8.
  • Lip, flap, ball, hose or similar valves are conceivable as valves, it being advantageous if both check valves 14, 15 are of essentially the same or similar design.
  • the valve seat of the respective check valve 14 or 15 by an annular end face of the associated bottom, namely in the case of the suction check valve 14 through the inside of the cup bottom 16 of the pump piston 10 and in the case of the discharge check valve 15 through the outside of the Bottom wall 17 of the cylinder housing 5 is formed.
  • the valve closing part 18 of the fully provided on the pump piston 10 and with this as a whole displaceable suction check valve 14 is formed by an elastic, very flat or plate-shaped annular disc which needs to be axially movable over just a little more than twice its thickness and in the closed position covers a ring of suction openings which are in the bowl bottom 16 immediately adjacent to and around the piston shaft 11 are provided as through openings so that outside air can be drawn in via the end collar of the cap 4 and through the central opening of the cylinder cover 7 into it and thus into the pump chamber 8.
  • a disk-shaped stop ring 20 is attached to the valve closing part 18 on its side facing away from the valve seat at a correspondingly small distance in the pump piston 10 or in its cup bottom 16, the stop ring 20 being provided through openings on the outer circumference, on the inner circumference and / or is permeable to air in the area between these peripheral edges.
  • the discharge check valve 15 has a corresponding, but larger in diameter valve closing part 19 and an associated stop ring 21, but these two parts are in a projecting beyond the outside of the bottom wall 17 forming an extension of the jacket wall of the cylinder housing 5 and the ring of compressed air openings close to the inner circumference of the cylinder housing 5 is provided.
  • the pump piston 10 When the compressed air pump 3 is actuated by depressing the actuating head 12, the pump piston 10 is moved against the force of the return spring 13 and with a corresponding reduction in the size of the pump chamber 8 in the direction of the bottom wall 17, the suction check valve 14 being closed automatically while the exhaust Check valve 15 is open, so that air is pumped into the container 2 and thereby an excess pressure is generated.
  • the discharge check valve 15 closes automatically, while the suction check valve 15 opens, so that air flows into the pump chamber 8 in the manner described is sucked in.
  • the discharge device 1 has an outlet channel 22 which is essentially constantly closed with respect to the pump chamber 8 and which is guided through or essentially formed by the piston shaft 11 and leads at the outer end into a discharge opening 23 which leads to the outside and is provided on the actuating head 12.
  • the discharge opening 23 can lie in the axis of the pump 3 or, as shown, can be formed by the end of an end channel lying at an angle to it in the actuating head 12.
  • the discharge device 1 has an inlet channel 24 lying essentially in the axis of the pump 3, which has an inlet opening close to the container bottom opposite the pump 3, closed or formed in one piece with the rest of the container, and for example by a hose-like elastic or rigid Riser pipe 25 is formed, which is attached to the cylinder housing 5.
  • a cup-shaped sleeve 26 protruding into the pump chamber 8 is connected in one piece to the bottom wall 17 of the cylinder housing 5 and extends approximately over half the length of the pump chamber 88 and the outside width of the pump chamber 8 is so small that the inside width is smaller the compressed air openings in the bottom wall 17 lie between the outer circumference of this sleeve 26 and the piston raceway 9.
  • the return spring 13 is also guided centered on the outer circumference of the sleeve 26.
  • the associated end of the riser 25 is inserted and fixed, for example, by clamping or pressing.
  • the inlet end of the outlet channel 22 is in the form of a socket on the inside of the cup base 16 of the pump piston 10, on which the piston shaft 11 protrudes slightly with a corresponding extension and is surrounded by the check valve 14.
  • the outlet end of the inlet channel 24 is axially aligned and opposite in the bottom of the sleeve 26.
  • the outlet channel 22 has a transition opening 27 and the inlet channel 24 has a transition opening 28 which have the same width and a width which are slightly larger than that smallest clear width of the respective channel 22, 24.
  • the transfer openings 27, 28 pass through mutually facing end faces 29, 30 on the one hand of the associated end of the piston skirt 11 and on the other hand the bottom wall of the sleeve 26.
  • the inlet channel 24 and the outlet channel 22 form a media channel 31 which is continuous from the inlet end to the discharge opening 23 and which, although it passes through the pump chamber 8, is essentially sealed off from it, since the end face 29, 30, optionally using additional Sealing members are provided as sealing surfaces.
  • the outlet channel 22 can be closed with an outlet valve 32 which is expediently located in the region of its transition opening 27, while the inlet channel 24 also with one Expediently in the region of its transfer opening 28 inlet valve 33 can be closed.
  • Both valves are expediently designed as conical seat valves that can be opened mechanically by pressure or axial actuation, and essentially so that the two valve closing parts 34, 35 and the associated valve springs can be mounted interchangeably.
  • the outlet valve 32 closes against the overpressure in the pump chamber 8, while the inlet valve 33 closes against the overpressure in the container 2. Both valves can be opened by hand against spring force, whereby instead of a separate actuation the arrangement is such that both valves can be opened essentially simultaneously with the actuating head 12.
  • valve closing part 35 of the inlet valve 33 has a driving stop 36 lying in the path of movement of an opening or stop member of the actuating head 12, which is formed by the end face of a plunger 37 projecting beyond the tapered end of the conical valve closing part 35.
  • the valve closing part 34 of the outlet valve 32 has a stop 38 in the relative movement path of an opening or stop member of the part of the pump which is fixed relative to the container 2 or the cap 4, and is formed in the same way by the end of a plunger 39 on.
  • the stop 36 or 38 of the one valve closing part 35 or 34 forms the opening or stop member 38 or 36 for the other valve closing part 34 or 35, so that the two valves 32, 33 are at the end of the pump stroke of the compressed air pump 3 open each other against the force of their closing spring by moving in opposite directions with respect to their valve seats.
  • the stops 36, 38 and the plungers 37, 39 protrude through the transfer openings 28, 27 in the closed position over the end faces 30, 29 and are approximately in the plane in the open or discharge position according to FIGS. 3 and 4 of these abutting end faces.
  • valve seat or the valve housing for the valve closing part 34 of the outlet valve 32 is formed directly by the piston shaft 11 or the pump piston 10, the valve seat being formed by the inner boundary of an annular end wall penetrated by the transition opening 27 and having the end face 29 on its outside.
  • a collar sleeve 40 is inserted within the socket of the actuating head 12, at the inner end of which the associated end of the valve spring 41, embodied as a helical compression spring and lying within the outlet channel 22, is supported, the other end of which has a centering mandrel surrounds at the rear of the valve closing part 34.
  • the valve housing 42 of the inlet valve 33 is formed by a separate, sleeve or cup-shaped component which is anchored to an outer jacket by insertion in the sleeve 26 and receives the valve closing part 35 and the associated valve spring 43 in an inner jacket, the associated one End of the riser 25 clamped between the outer and inner sheath of the valve housing 42 engages and is thereby fixed.
  • the valve seat of this inlet valve 33 is formed by the inside of the bottom wall of the sleeve 26.
  • a compressed air duct 44 opens into the media duct and preferably into the inlet duct 24, the inlet of which is connected to the pressure accumulator of the container 2 sunk and is therefore protected from spray liquid inside the sleeve 26, while its outlet opens transversely to the axis of the transfer opening 28 or the inlet channel 24 into the inlet valve 33 immediately adjacent to the valve seat thereof.
  • the compressed air duct 44 has significantly smaller, throttled cross sections than the media duct and is formed, for example, by a helical groove on the outer circumference of the outer casing of the valve housing 42, which lies against the inner surface of the casing wall of the sleeve 26.
  • This helical, directly connected to the pressure accumulator circumferential section of the compressed air channel 44 merges into an end section which is provided in the end face of the valve housing 42 abutting the bottom wall of the sleeve 26 and can have a spiral course instead of a radial course directed against the channel axis, so that the compressed air swirling into inlet channel 24 or the associated valve housing.
  • the discharge device works according to the following method: By depressing the actuating head 12, the pressure in the container 2 is charged in the manner described with the compressed air pump 3, whereby actuation of the pump 3 can only avoid a partial stroke that medium is discharged. If medium is to be discharged, the actuating head 12 is pressed down as far as it will go, the plungers 37, 39 of the valves 33, 32 meeting one another and the valves 32, 33 being opened substantially simultaneously with the application of the end faces 29, 30 to one another, so that the continuous media channel is formed and is continuously open from the inlet end of the inlet channel 24 to the discharge opening 23.
  • the excess pressure in the container 2 drives the medium through the inlet channel 24, bypassing the pump chamber 8, into the outlet channel 22 and from there through the discharge opening 23 into the open.
  • part of the compressed air compressed in the container 2 is admixed via the compressed air duct 44 to the medium flowing through the media or inlet duct 24 in an injection-like manner, so that it can be foamed up relatively far away from the discharge opening 23 and only in the fully foamed state Discharge opening 23 leaves.
  • a foaming body in the form of, for example, a sieve 45 can also be provided in the flow direction after the supply of the foaming air in the media channel, which is expediently attached as a cup-shaped body to the inner end of the collar sleeve 40 and thus within of the outlet channel 22, namely in the flow direction immediately after the outlet valve 32, so that a relatively wide flow path is also provided from the sieve 45 to the discharge opening 23.
  • a collecting space 46 is provided in this for this leak medium, from which a return connection leads to the container 2.
  • the annular collecting space can be formed in a simple manner by the space of the pump chamber 8 adjoining the bottom wall 17 and not reached by the pump piston 10 at the end of the pump stroke, while the return connection is formed by the discharge check valve 15 or its valve openings, so that possibly Leak medium located in the pump chamber 8 is forcibly pressed out of the compressed air pump 3 and back into the container 2 at the beginning of each pump stroke.
  • the cup opening of the pump piston 10 lies in the direction of the pump stroke at the front.

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  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Claims (16)

  1. Dispositif (1) pour distribuer des matières, comprenant une pompe à air (3) et un canal de matière (31), canal pouvant être fermé et ouvert manuellement pour la distribution de matière et devant être raccordé à un récipient (2) formant un réservoir, caractérisé en ce qu'au moins une pompe à air (3) est pourvue d'un raccordement d' air comprimé (15), pouvant être fermé et ouvert et menant au récipient (2), lequel constitue un accumulateur de pression chargeable.
  2. Dispositif de distribution selon la revendication 1, caractérisé en ce que la pompe à air (3) peut être actionnée par pression au moyen d'un élément de commande (12) et présente une chambre de pompe (8), qu'un canal d'arrivée (24) pour la matière, canal qui peut être fermé dans la direction de distribution, est coordonné à un canal de sortie (22) pour la matière, canal de sortie qui est ouvert à une position de distribution (Fig. 3) du dispositif et qui mène à un orifice de distribution (23), et que, à la position de distribution (Fig. 3), le canal de sortie (22) et le canal d'arrivée (24) sont directement raccordés l'un à l'autre, en contournant pour l'essentiel la chambre de pompe (8), en vue de la formation d'au moins un canal de matière (31).
  3. Dispositif de distribution selon la revendication 1 ou 2, caractérisé en ce qu'il comprend au moins un canal d'air comprimé (44), pour l'amenée d'air de moussage ou analogue, menant dans le canal de matière (31), en particulier dans le canal d'arrivée (24) pour la matière contenue dans le récipient, et que de préférence au moins un canal, en particulier le canal de sortie (22) menant à un orifice de distribution (23), est disposé de façon à pouvoir être transféré depuis une position de départ (Fig. 2) où il est séparé de l'autre canal (24), à une position de distribution (Fig. 3) où il est raccordé à cet autre canal (24) et est situé par exemple sur le même axe.
  4. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce qu'un canal de sortie (22), menant à un orifice de distribution (23), est relié, en vue de son transfert à une position de distribution, à une tête d'actionnement (12) de la pompe à air (3), présentant éventuellement l'orifice de distribution (23), le canal de sortie (22) étant disposé en particulier en position essentiellement rigide et/ou sur le même axe que le canal d'arrivée (4) dans la tête d'actionnement (12), et est raccordé au canal d'arrivée (24) à la fin de la course de pompage (Fig. 3).
  5. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce que, à la position de distribution (Fig.3), le canal de sortie (22) et le canal d'arrivée (24) sont appliqués l'un contre l'autre par des faces d'extrémité (29, 30) dirigées sensiblement l'une vers l'autre, en particulier des faces planes, et le canal transférable (22), de préférence, est disposé mobile en translation en direction de son axe.
  6. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce qu'un canal d'arrivée (24) pour la matière contenue dans le récipient, peut être fermé par une soupape d'admission (33) à ouvrir par commande manuelle, soupape qui comporte notamment un obturateur (35) chargé par ressort dans la direction de fermeture, et qui peut être amenée à la position d'ouverture par l'élément de commande (12) de la pompe à air (3) à la fin de la course de pompage.
  7. Dispositif de distribution selon la revendication 6, caractérisé en ce que l'obturateur (35) de la soupape d'admission (33) présente une butée (36) située sur le trajet de mouvement d'un élément d'ouverture de l'élément de commande (12), en particulier un poussoir (37) situé sur le même axe que l'obturateur et qui, de préférence, fait saillie à travers un orifice de passage (28) pour le canal de sortie (22), orifice qui est situé à l'extrémité coordonnée du canal d'arrivée (24).
  8. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce que le canal de sortie (22) peut être fermé par un e soupape d'échappement (32), à ouvrir notamment par commande manuelle, et/ou comportant un obturateur (34) chargé par ressort dans le sens de la fermeture et qui peut être amené à la position d'ouverture par l'élément de commande (12) de la pompe à air (3) à la fin de la course de pompage.
  9. Dispositif de distribution selon la revendication 8, caractérisé en ce que l'obturateur (34) de la soupape d'échappement (32) présente une butée (38) destinée à venir s'appliquer contre un élément d'ouverture, butée qui est formée en particulier par un poussoir (39) situé sur le même axe que l'obturateur, lequel fait de préférence saillie à travers un orifice de passage (27) pour le canal d'arrivée (24), orifice qui est situé à l'extrémité coordonnée du canal de sortie (22), et qui (39) forme l'élément d'ouverture pour la soupape d'admission (33).
  10. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce que le canal de matière (31) traverse une chambre de pompe (8) de la pompe à air (3) et que, en particulier, un canal de sortie (22) menant à un orifice de distribution, forme en partie au moins un composant qui traverse un piston de pompe (10) de la pompe à air (3) et/ou est réalisé d'un seul tenant avec le piston de pompe (10).
  11. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce qu'un piston de pompe (10) de la pompe à air (3) est réalisé en forme de coupelle et est traversé au fond de la coupelle (16) par le canal de sortie (22), l'extrémité coordonnée d'un canal d'arrivée (24) pour la matière contenue dans le récipient, étant formée en particulier par un manchon (26) d'un corps de cylindre (5), manchon qui fait saillie dans la chambre de pompe (8) à partir d'une paroi de fond (17).
  12. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce que le système de commande à soupapes de la pompe à air (3) comprend au moins une soupape antiretour, en particulier une soupape antiretour d'aspiration et une soupape antiretour d'expulsion (14 et 15) dont de préférence une soupape de retour (14) est prévue sur le fond de coupelle (16) du piston de pompe (10) et/ou une soupape antiretour (15) est prévue sur une paroi de fond (17) d'un corps de cylindre (5) de la pompe (3).
  13. Dispositif de distribution selon la revendication 12, caractérisé en ce que la soupape antiretour (14, 15) comporte un obturateur (18, 19) en forme de disque annulaire, auquel est coordonnée une couronne d'orifices et qui est appliqué en position d'ouverture contre un anneau de garde (20, 21).
  14. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce qu'un orifice d'admission du canal d'air comprimé (44) de la pompe à air (3) est raccordé, extérieurement à la chambre de pompe (8) de celle-ci, au récipient-réservoir (2), et est situé de préférence dans un manchon (26) du corps de cylindre (5).
  15. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce qu'un canal d'air comprimé (44) de la pompe à air (3) débouche à proximité immédiate d'un orifice de passage (27) pour la matière contenue dans le récipient, ou à proximité immédiate d'une soupape (33) d'un canal d'arrivée (24) pour la matière contenue dans le récipient, et est réalisé de préférence sous la forme d'un canal hélicoïdal ou rectiligne, essentiellement à la périphérie extérieure d'un corps de soupape (42) disposé dans un manchon (26) d'un corps de cylindre (5) de la pompe à air (3).
  16. Dispositif de distribution selon une des revendications précédentes, caractérisé en ce qu'une chambre de pompe (8) de la pompe à air (3) présente une liaison de retour pour la matière de fuite, liaison qui mène au récipient (2), part de préférence d'un espace collecteur (46) situé près d'une paroi de fond (17) d'un corps de cylindre (5) de la pompe (3) et est constituée en partie par une soupape antiretour d'expulsion (15).
EP88105328A 1987-04-11 1988-04-01 Dispositif pour la distribution de liquides Expired - Lifetime EP0286925B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873712327 DE3712327A1 (de) 1987-04-11 1987-04-11 Austragvorrichtung fuer medien
DE3712327 1987-04-11

Publications (3)

Publication Number Publication Date
EP0286925A2 EP0286925A2 (fr) 1988-10-19
EP0286925A3 EP0286925A3 (en) 1988-12-28
EP0286925B1 true EP0286925B1 (fr) 1991-08-07

Family

ID=6325427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105328A Expired - Lifetime EP0286925B1 (fr) 1987-04-11 1988-04-01 Dispositif pour la distribution de liquides

Country Status (2)

Country Link
EP (1) EP0286925B1 (fr)
DE (2) DE3712327A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911510A1 (de) * 1989-04-08 1990-10-11 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
DE4008069A1 (de) * 1990-03-14 1991-09-19 Pfeiffer Erich Gmbh & Co Kg Austragkopf fuer medien
WO1995003131A1 (fr) * 1993-07-23 1995-02-02 Unilever Plc Dispositif delivrant un aerosol
US5425477A (en) * 1994-06-29 1995-06-20 Monturas, S.A. Pump sprayer with stationary discharge
US5503306A (en) * 1994-10-19 1996-04-02 Aptar Group, Inc. Manually actuated pump
US5505343A (en) * 1994-10-19 1996-04-09 Knickerbocker; Michael G. Manually actuated pump
FR2757786B1 (fr) * 1996-12-26 1999-03-26 Sanofi Sa Ensemble de conditionnement de liquide, notamment d'un produit cosmetique ou d'un medicament
DE19727356B4 (de) 1997-06-27 2006-04-20 Ing. Erich Pfeiffer Gmbh Spender für Medien
NL1039786C2 (en) * 2012-09-03 2014-03-04 Markus Franciscus Brouwer Foam dispenser.
ITMI20121678A1 (it) * 2012-10-08 2014-04-09 Meadwestvaco Calmar S R L Pompa ad azionamento manuale per l'erogazione di sostanze fluide, ad innesco perfezionato

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793319A (fr) * 1971-12-28 1973-06-27 Ciba Geigy Distributeur aerosol pour produits fluides
GB1551038A (en) * 1975-08-01 1979-08-22 Unilever Ltd Finger operable pump for dispensing liquids

Also Published As

Publication number Publication date
DE3712327A1 (de) 1988-10-20
DE3864059D1 (de) 1991-09-12
EP0286925A2 (fr) 1988-10-19
EP0286925A3 (en) 1988-12-28

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