EP0499520A1 - Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebeteil in ihrem Saugrohr - Google Patents

Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebeteil in ihrem Saugrohr Download PDF

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Publication number
EP0499520A1
EP0499520A1 EP92400340A EP92400340A EP0499520A1 EP 0499520 A1 EP0499520 A1 EP 0499520A1 EP 92400340 A EP92400340 A EP 92400340A EP 92400340 A EP92400340 A EP 92400340A EP 0499520 A1 EP0499520 A1 EP 0499520A1
Authority
EP
European Patent Office
Prior art keywords
rod
actuation
reservoir
valve
inlet 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
EP92400340A
Other languages
English (en)
French (fr)
Other versions
EP0499520B1 (de
Inventor
Claude Jouillat
Michel Brunet
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.)
Societe Technique de Pulverisation STEP
Original Assignee
Societe Technique de Pulverisation STEP
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 Societe Technique de Pulverisation STEP filed Critical Societe Technique de Pulverisation STEP
Publication of EP0499520A1 publication Critical patent/EP0499520A1/de
Application granted granted Critical
Publication of EP0499520B1 publication Critical patent/EP0499520B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0029—Valves not actuated by pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/30—Dip tubes
    • 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
    • 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
    • B05B11/0078—Arrangements for separately storing several components
    • 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
    • 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
    • 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
    • B05B11/1059—Means for locking a pump or its actuation means in a fixed position

Definitions

  • the present invention relates to a device for spraying or distributing a fluid product comprising a member sliding in its inlet orifice. More particularly, the present invention relates to miniaturized pumps or valves which can be held in the hand, intended to spray or distribute a fluid product, which may be liquid or pasty, such as a perfume, a cosmetic product or a pharmaceutical product. Such pumps or valves are generally actuated using a finger, but can also be actuated by mechanical and / or electrical means.
  • the pumps or valves have an inlet port through which they communicate with a product reservoir.
  • this inlet orifice is fitted with a plunger tube fitted by force into an inlet pipe of the pump or valve body, and therefore integral with the pump body or the valve.
  • the elongated member can be linked to the actuating member.
  • the device further comprises said reservoir, and said elongated member exercises on each actuation of said actuating member a remote control function of an organ disposed in the reservoir, such as a valve or a valve. .
  • the elongated member is a rod which is pushed towards the reservoir only during the first actuation of the actuating member, said rod comprises a part in sealed peripheral contact with the inlet passage before the first actuation of the actuator, so that the inlet passage is closed before the first actuation, and the rod comprises a part having means of communication adapted to allow the passage of the product in the inlet passage of the body, after the first actuation of the actuating means.
  • Said communication means can be longitudinal grooves formed over part of the length of the rod, outside of said rod.
  • the device further comprises said reservoir, and said reservoir is separated into at least two compartments by at least one separation means, and the elongated member is adapted to open said separation means during the first actuation of the actuator.
  • the separation means can be a tearable membrane or a plug.
  • the compartments may contain gases under pressure, be placed under vacuum, and / or contain products which mix at the time of the first actuation of the actuator.
  • the friction between the elongated member and the entry passage is such that the elongated member is not moved as long as it is subjected to a stress of less than about 49N (5kg).
  • the elongated member is a tube, and the tube has one end close to the valve member which is cut so that the support of the valve member on the tube does not is not waterproof.
  • FIGS 1 to 6 show an example of a pump according to a first embodiment of the invention.
  • a manual pump for dispensing or spraying a fluid product is described in documents FR 2 305 241 and 2 314 772.
  • the various parts of the pump are made of plastic, outside the spring. metallic.
  • the pump of FIG. 1 comprises a hollow cylindrical pump body 1, having an axis of revolution.
  • the pump body 1 has a first open end 11 provided with means for fixing to a product reservoir, such as for example a crimpable metal capsule 13, and a second end 12 intended to be located inside the reservoir. product.
  • the pump body 1 Near its end 12, the pump body 1 has an annular bottom 15 pierced with a central intake orifice 16.
  • the annular bottom 15 is extended towards the end 11 of the pump body by a cylindrical wall 17 of diameter reduced, itself extended radially outwards by a widening 18 which is extended to the end 11 by a substantially cylindrical wall 19.
  • the bottom 15 can be extended axially outwards from the pump body - it that is to say towards the inside of the product reservoir - by a tubular conduit 14, up to an inlet end 14c of said tubular conduit, and the cylindrical wall 17 is extended axially towards the end 11 by a tubular endpiece 4 which extends over a certain distance inside the pump body 1.
  • the cylindrical wall 17 of reduced diameter and the widening 18 could be omitted without departing from the scope of the present invention: in this case, the tubular end piece 4 would extend from the bottom 15 towards the end 11, and the bottom 15 would be directly linked to the cylindrical wall 19.
  • a piston 2 slides in the cylindrical wall 19 of the pump body 1, defining with the pump body 1 a pump chamber 20.
  • the piston 2 is extended towards the end 11 of the pump body 1 by a push rod 3 which extends beyond said end 11.
  • the push rod 3 has a central or axial channel 3a, which opens on the one hand into the pump chamber 20, and on the other hand outside the pump body 1. From the pump chamber 20, the channel 3a first has a wide part, then a narrowing 7a forming a valve seat, as will be seen below.
  • the pump also comprises a valve 6 arranged between the piston 2 and the bottom 15 of the pump body 1, and urged elastically towards the piston 2 by a spring 10 which bears on the bottom 15 of the pump body.
  • the valve 6 has an axial point 7 applied elastically to the valve seat 7a of the channel 3a, under the stress of the spring 10.
  • the valve 6 is provided with a cylindrical skirt 8 extending over a certain distance towards the bottom 15 of the pump body, and adapted to be fitted onto the tubular end piece 4.
  • the skirt 8 may include an inner peripheral sealing lip 8a adapted to perfect the sealing of the fitting of said skirt 8 on the end piece 4.
  • the skirt 8 can be guided by external ribs 8 which slide in the pump body 1. It will be noted that the skirt 8 could be adapted to be fitted inside the end piece 4 or of the cylindrical wall 17, without departing from the scope of the present invention.
  • the end 11 of the pump body is finally provided with an attached ferrule 21, fixed to the pump body 1, which serves as a stop for the movement of the piston 3 towards said end 11.
  • the pump of Figure 1 operates as described below. In the description of this operation, we will assume the pump chamber 20 filled with product to be dispensed or sprayed.
  • the spring 10 pushes the valve 6 upwards, at the same time driving the piston 2.
  • the pump chamber 20 is isolated by fitting the the skirt 8 on the tubular end piece 4, and by application of the needle 7 on its seat 7a.
  • the rise of the piston 2 therefore creates a depression.
  • the skirt 8 emerges from the nozzle 4. Under the effect of the vacuum prevailing in the pump chamber 20, the product contained in the tank is then sucked towards said pump chamber, which is refilled.
  • a cylindrical rod 25 is slidably mounted in the pump inlet duct 14, having one end 25a disposed inside the pump body 1, and one end 25b disposed outside said pump body 1.
  • the inner end 25a of the rod is placed in abutment against the valve 6 of the pump.
  • the inlet pipe of the pump may include a peripheral inner sealing cord 14a.
  • the diameter of the tubular inlet pipe 14 is slightly greater than the diameter of the rod 25, so that only the sealing bead 14a is in elastic abutment against the rod 25, which limits the friction between said rod and the conduit 14 and allows the rod to slide under sufficient force, while keeping it in place during storage or editing.
  • the rod 25 could possibly be replaced by a dip tube, without departing from the scope of the present invention.
  • the rod 25 is provided with longitudinal grooves 26, which allow communication between the pump chamber 20 and a product reservoir.
  • These grooves can be formed over the entire length of the rod 25, but more advantageously, the grooves 26 are not formed over the entire length of the rod 25, so that said rod 25 comprises a smooth portion 27 not grooved, placed at the level of the sealing bead 14a of the conduit 14 during pump assembly.
  • the sealing bead 14a is in elastic peripheral support on the non-grooved part 27 of the rod 25 , so that the pump chamber 20 is isolated from the product contained in the reservoir.
  • the product contained in the tank therefore does not risk being polluted by the springs or lubricants of the pump during storage. It also limits the risk of leakage of said product and entry of air into the tank.
  • the outer end 25b of the rod 25 can be cut at an angle or at a bevel, so as to form a point.
  • the rod 25 may also be provided with hollow longitudinal grooves 28, or possibly longitudinal ribs (28a, FIG. 8c) projecting outside the rod, or other reliefs, which extend over a certain distance from the vicinity of its end 25b, as shown in section in FIG. 4: the role of the grooves 28 will appear clearly in the following description.
  • the end 25b of the rod 25 can be formed in a warhead, still with longitudinal grooves 28.
  • the end 25b can be of upper section to the section of the rod 25, forming a pestle.
  • the rod 25, or possibly the dip tube will preferably be made of a rigid material, such as, for example, acetal resin, PBT or polypropylene.
  • the rod 25 is pushed axially towards the reservoir, by pressing the valve 6 on its inner end 25a.
  • the valve 6 By this movement, one can for example pierce a membrane or move a plug separating the product reservoir into two compartments, as will be seen in the application examples given below.
  • the rod 25 no longer moves. It is thus possible to mix two products at the time of use, at least one of the products being liquid, and one of the products possibly being a powder or a lyophilisate to be mixed with a liquid.
  • the reservoir of product to be dispensed can be pressurized at the time of use, thus avoiding losses. pressure leakage at the tank seal during storage.
  • the axial movement of the rod 25 brings part of the grooves 26 out of the tubular conduit 14, that is to say into the reservoir of product.
  • the grooves 26 constitute a passage between the product reservoir and the pump chamber 20, allowing the suction of product at the end of each actuation of the pump.
  • the rod 25, or possibly a dip tube placed in abutment against the valve 6 or in the vicinity of said valve, prevents actuation accidental pump under low stress applied to the push rod 3 of said pump, for example during transport or handling, thanks to the friction existing between the rod 25 and the bead 14a sealing the conduit 14.
  • these friction will be sufficient to prevent movement of the rod 25 under a stress of less than 49 N (5 kg), said friction being able to have another value without departing from the scope of the present invention.
  • the rod 25 may be integral with the valve 6, so that it slides axially in the intake duct 14 each time the pump is actuated, following the movement of the valve 6. It is thus possible to use the rod 25 to control a member, such as a valve or a valve, each time the pump is actuated or to actuate an agitator fixed to the free end of the rod.
  • the grooves 26 extend over the entire length of the rod 25 or at least over a length sufficient for said ribs 26 to allow communication between the pump chamber 20 and the product reservoir when the pump is in its rest position.
  • the rod 25 can also slide without sealing in the intake duct 14.
  • the valve 6 can push the rod 25 out of the intake duct 14 at the end of the first actuation of the pump, after said rod 25 has fulfilled its function of perforating a membrane or moving a plug or another member, so that said rod 25 falls into the product reservoir and can then serve as an agitator to facilitate the homogenization of said product.
  • the invention is not limited to the particular pump of FIG. 5: it applies to any pump or to any valve in which the rod 25, or a dip tube, can extend to the interior of the pump or valve to the vicinity of a movable member sliding axially in said pump or valve when said pump or valve is actuated.
  • FIGs 9a to 9c show a first example of use of the pump of Figure 1.
  • the pump body 1 is mounted on a neck 36 of a tank 30 having two compartments 31 and 32 separated by a tearable membrane 33.
  • the rod 25 penetrates into the compartment 31 of the reservoir 30, and the outer end 25b of said rod is located in the vicinity of the tearable membrane 33.
  • the sealing bead 14a of the intake duct 14 of the pump is in contact with an ungrooved part 27 of the rod, so that the pump chamber 20 is isolated from the compartment 31 of the reservoir 30 until the pump has been activated.
  • compartment 31 contains a solvent and compartment 32 contains a lyophilisate.
  • each of the compartments 31, 32 can contain any product, in liquid, pasty form, in powder form, or in solid form such as a lyophilisate: at least one of the compartments 31, 32 must nevertheless contain a liquid product, in order to facilitate the mixing of the two products during the perforation of the membrane, as will be seen below.
  • the compartment 32 can be sealed in a perfectly leaktight manner, and contain a pressurized gas, in particular an inert gas such as nitrogen, in order to avoid gas leaks during storage of the device.
  • compartment 32 may also contain a product to be mixed with the content of compartment 31, in addition to the gas.
  • the compartment 31 may also contain a gas under pressure, in addition to the product to be sprayed or dispensed that it contains.
  • one of the compartments can be placed under vacuum or under vacuum.
  • the reservoir comprises a bottomless enclosure 31 a delimiting the compartment 31 and on which the pump is mounted, said enclosure possibly being made of plastic.
  • the reservoir 30 further comprises a socket 32a assembled to the enclosure 31a, for example by screwing, which closes the enclosure 31a and which delimits the compartment 32.
  • the socket 32a can be made of any material, for example glass.
  • the sleeve 32a is closed by a plug 34 provided with a central orifice 34a, placed in the extension of the rod 25 when the sleeve 32a is assembled on the enclosure 31a, and the tearable membrane 33 is tightly fixed on the plug 34 by closing the opening 34a.
  • the sleeve 32 can be used for lyophilization of the product in a well known manner. It suffices for this to have the product to be lyophilized in the sleeve 32 and to partially engage the plug 34 on said sleeve without completely closing the compartment 32. It is possible, for example, to provide the plug 34 with a slot 34b extending over a part of its height, so as to constitute a passage between the compartment 32 and the outside when the plug 34 is partially engaged on the socket 32a.
  • compartment 32 we can then freeze the product contained in compartment 32, then heat it suddenly under vacuum, which causes the sublimation of the water contained in said product and leaves a dry and solid residue: lyophilisate.
  • the compartment 32 is then closed by fully depressing the plug 34, then the socket 32a is assembled on the enclosure 32a, the compartment 31 is filled with solvent, and the pump body 1 is assembled on the reservoir 30.
  • the compartment 32 can also be filled with pressurized gas before the plug 34 is fully inserted.
  • compartment 31 can optionally be subsequently filled with pressurized gas, for example as explained below with reference to FIG. 13. But in this case, the grooves 26 of the rod 25 must extend from the pump chamber 20 to beyond the intake duct 14, in order to make the compartment 31 communicate with the pump chamber 20 before the first pump activation.
  • FIG. 9b represents a rod 25 having an end 25b cut into a point, but it could have any other shape, without leaving the frame of the present invention.
  • the axial movement of the rod 25 causes the grooves 26 of the rod to appear in the compartment 32, so that said grooves 26 allow communication between the reservoir 20 and the pump chamber 20.
  • the device can be returned to the position shown in FIG. 9c, that is to say with the pump located below the reservoir 30.
  • the product to be sprayed or dispensed then passes into the compartment 31, so that it can be sucked into the pump chamber 20 through the grooves 28 to the end of each actuation of the pump.
  • the enclosure 31 a has a peripheral sealing lip 35 applied elastically against the conduit 14 of the pump intake, in order to prevent product from passing into the volume between the pump body 1 and the neck. 36 of the reservoir 30, where said product could no longer be sucked by the pump.
  • Figures 10a and 10b show an alternative embodiment of the example of Figures 9a to 9c, in which the reservoir 30 comprises an enclosure 31a, made for example of plastic, and having a cylindrical part 37 extending between an open end 37a and a neck 36 on which the pump body 1 is mounted.
  • the enclosure 31 a may comprise a peripheral sealing lip 35 applied elastically against the intake duct 14 of the pump.
  • the reservoir 30 further comprises a hollow cylinder 38 adapted to fit into the cylindrical part 37 of the enclosure 31a, in sealed contact with said cylindrical part 37.
  • This hollow cylinder 38 is divided into two compartments 31, 32 by a partition 39 annular, extending from said hollow cylinder 38 inwardly.
  • the annular partition 39 delimits a central orifice 39a, closed by a tearable membrane 33, and located in the extension of the rod 25.
  • the enclosure 31a may further comprise a slot 37b extending axially on its cylindrical part 37, over a certain distance from the open end 37a.
  • the slot 37b then allows the communication of compartment 31 with the outside during freeze-drying, then the enclosure 31a is fully pressed onto the cylinder 38, which isolates the compartment 31.
  • the compartment 32 can then be closed after it has also been filled, for example by crimping a metal capsule 40 on the open end 37a of the enclosure 3a, a solid disc-shaped seal 41 being placed between the metal capsule 40 and the end 37a of the enclosure 31a.
  • the annular partition 39 can be raised towards the center, so that the lyophilisate, or another powder, accumulates around the membrane 33 but not on said membrane, so as not to hinder the perforation of said membrane when the pump is first activated.
  • FIGS. 10a and 10b The operation of the device in FIGS. 10a and 10b is the same as that in FIGS. 9a to 9c: it will therefore not be repeated here.
  • FIGS 11a and 11b show a variant of the device of Figures 10a and 10b, in which the central orifice 39a of the annular partition 39 is closed not by a tearable membrane but by a plug 42 fitted in said orifice 39a.
  • the rod 25 pushes the plug 42 back into the compartment 32, which allows communication between the compartments 31 and 32.
  • the plug 25 It is advantageous for the plug 25 to be quite bulky: thus, when it is pushed back into the compartment 32 by the rod 25, it violently drives the product contained in the compartment 32 towards the compartment 31, which facilitates the mixing of the products.
  • the end 25b of the rod 25 will be non-pointed, preferably enlarged, so as to push the plug 42 well.
  • Figures 12a, 12b and 12c show a device similar to that of Figures 10a, 10b, 11a and 11b, in which a dip tube 5 is slidably mounted in the intake duct 14 of the pump.
  • the outer end 5a of the tube 5 has a narrowed portion 43.
  • the compartment 32 comprises a portion of tube 44 extending axially between an upper end 44a adjacent to the membrane 33 and a lower end 44b in contact with the seal 41 forming the bottom of the compartment 32.
  • the tube portion 44 is kept centered in the compartment 32 by at least three radial arms 45 extending from said tube portion 44 to the hollow cylinder 38, and placed in contact with the partition annular 39.
  • the lower end 44b of the tube portion 44 is notched or bevelled, or has a notch, so as not to be applied in a sealed manner on the point 41. In general, the end 44b of the tube portion 44 is therefore not perpendicular to the axis of said tube portion 44.
  • the upper end 44a of said tube portion 44 forms a housing 44c complementary to the narrowed part 43 of the dip tube 5.
  • the dip tube 5 punctures the membrane 33 and the narrowed part 43 fits tightly in the housing 44c: the tube 5 is then coupled to the tube portion 44, so that the pump can suck the contents of compartment 32 through the lower end 44b, resulting from the mixing of the products initially contained in compartments 31 and 32.
  • FIG. 13 represents a pump similar to that of FIG. 1, no longer comprising a rod 25 slidably mounted in the conduit 14, but a dip tube 5.
  • the dip tube could be replaced by a rod (25) having grooves longitudinal extending from a part of the inner rod (25) of the pump to the interior of the reservoir so as to constitute a passage between the pump chamber 2c and the reservoir before the first actuation of the pump.
  • the pump of Figure 13 further comprises a rod 7b extending the needle 7 and projecting a distance H1 beyond the outer end of the hollow rod 3.
  • the skirt 8 is separated from 'An axial distance H2 from the tubular end piece 4, H2 being greater than H1.
  • Such a configuration easily allows filling with gas, in particular nitrogen, of the product reservoir on which the pump is mounted.
  • transient overpressures of the injected gas can cause accidental fitting of the skirt 8 on the nozzle 4: the pressure of the gas on the valve 6 then maintains the fitting, so that the communication with the tank remains cut and the gas filling is not done.
  • an inner end 5c of the dip tube 5 can be placed in the vicinity of the valve 6, and in any case separated from said valve 6 by a distance H3 less than H2 or possibly equal to zero.
  • Said inner end 5c is advantageously provided with a notch 5d or cut obliquely or beveled.
  • the friction of the sealing bead 14a on the dip tube 5 is sufficient to retain the tube 5 during such overpressures: in fact, as long as the skirt 8 is not fitted on the end piece 4, the gas can flow towards the reservoir, so that the force thus exerted on the valve 6 in the direction of the tube 5 is limited.
  • the spring 10 helps the tube 5 to retain the valve 6.
  • the friction between the dip tube 5 and the sealing bead 14a, or more generally between the dip tube 5 and the intake duct 14, will be sufficient to prevent movement of the rod 25 under a stress less than 49 N (5 kg), said friction being able to have another value without departing from the scope of the present invention.
  • the dip tube 5 is pushed back towards the product reservoir. Before this first voluntary actuation, the dip tube 5 constitutes a safety against an accidental actuation of the pump, as explained previously with regard to the pump of FIG. 5.
  • the dip tube could be replaced by a solid rod 25, provided that it has longitudinal grooves 26 over its entire length, or that it slides without sealing in the intake duct 14

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
EP92400340A 1991-02-14 1992-02-10 Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebeteil in ihrem Saugrohr Expired - Lifetime EP0499520B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9101724A FR2672957B1 (fr) 1991-02-14 1991-02-14 Pompe ou valve manuelle comportant un tube ou une tige coulissant dans son conduit d'admission.
FR9101724 1991-02-14

Publications (2)

Publication Number Publication Date
EP0499520A1 true EP0499520A1 (de) 1992-08-19
EP0499520B1 EP0499520B1 (de) 1995-05-10

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EP92400340A Expired - Lifetime EP0499520B1 (de) 1991-02-14 1992-02-10 Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebeteil in ihrem Saugrohr
EP92400374A Expired - Lifetime EP0499537B1 (de) 1991-02-14 1992-02-12 Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebesteigrohr im Saugrohr

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EP92400374A Expired - Lifetime EP0499537B1 (de) 1991-02-14 1992-02-12 Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebesteigrohr im Saugrohr

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EP (2) EP0499520B1 (de)
DE (2) DE69202356T2 (de)
FR (1) FR2672957B1 (de)

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WO1999048766A1 (fr) * 1998-03-26 1999-09-30 Valois S.A. Dispositif de distribution airless

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DE19749514A1 (de) * 1997-11-08 1999-05-12 Pfeiffer Erich Gmbh & Co Kg Verfahren zum Ausbringen von wenigstens zwei verschiedenen Medien und Spender dafür
DE102007033375B4 (de) 2007-07-18 2014-10-30 Gaplast Gmbh Behälter

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FR2593147A1 (fr) * 1986-01-17 1987-07-24 Aerosol Inventions Dev Conditionnement sterile de substances fluides liquides et semi-liquides.

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US4278189A (en) * 1979-12-17 1981-07-14 Ethyl Products Company Accumulative pressure pump
DE3545409C2 (de) * 1985-12-20 1994-02-24 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für fließfähige Medien

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
FR2593147A1 (fr) * 1986-01-17 1987-07-24 Aerosol Inventions Dev Conditionnement sterile de substances fluides liquides et semi-liquides.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999048766A1 (fr) * 1998-03-26 1999-09-30 Valois S.A. Dispositif de distribution airless
FR2776633A1 (fr) * 1998-03-26 1999-10-01 Valois Sa Dispositif de distribution airless
US6332561B1 (en) 1998-03-26 2001-12-25 Valois S.A. Airless dispensing device

Also Published As

Publication number Publication date
EP0499537A1 (de) 1992-08-19
EP0499520B1 (de) 1995-05-10
FR2672957A1 (fr) 1992-08-21
FR2672957B1 (fr) 1993-11-12
DE69202486T2 (de) 1996-01-25
DE69202486D1 (de) 1995-06-22
DE69202356D1 (de) 1995-06-14
EP0499537B1 (de) 1995-05-17
DE69202356T2 (de) 1995-10-26

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