EP0499537A1 - Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebesteigrohr im Saugrohr - Google Patents

Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebesteigrohr im Saugrohr Download PDF

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Publication number
EP0499537A1
EP0499537A1 EP92400374A EP92400374A EP0499537A1 EP 0499537 A1 EP0499537 A1 EP 0499537A1 EP 92400374 A EP92400374 A EP 92400374A EP 92400374 A EP92400374 A EP 92400374A EP 0499537 A1 EP0499537 A1 EP 0499537A1
Authority
EP
European Patent Office
Prior art keywords
dip tube
tube
intake passage
towards
pump
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
EP92400374A
Other languages
English (en)
French (fr)
Other versions
EP0499537B1 (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 EP0499537A1 publication Critical patent/EP0499537A1/de
Application granted granted Critical
Publication of EP0499537B1 publication Critical patent/EP0499537B1/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 tube 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 or valve body.
  • This dip tube extends to the bottom of the tank, so as to allow the suction or propulsion of the entire volume of product contained in the tank.
  • the reservoir When the product to be dispensed is expensive, it is advantageous for the reservoir to have a low point, and for the dip tube to extend to this low point. This can be quite difficult to achieve, due to manufacturing tolerances on the length of the dip tube, due to the mounting tolerances of the dip tube on the pump or the valve and the mounting tolerances of the pump or the valve on The reservoir.
  • Document DE-3,545,409 proposes a solution to this problem: on the free end of the dip tube of a pump is slidably mounted a second tube of greater diameter.
  • the second tube has a beveled lower end, and has an annular inner bead which bears elastically against the dip tube, forming a seal.
  • this second tube has a fairly large diameter, so that it does not reach exactly the low point of the tank due to the slope of the bottom of the tank: a small volume of product is lost.
  • this second tube can easily hang on an external obstacle and disengage from the dip tube.
  • the present invention aims to eliminate these drawbacks.
  • the present invention relates to a device for spraying or distributing fluid product comprising a body having a lower end provided with an intake passage adapted to communicate with a reservoir of said product, a dip tube being mounted in said passage d admission, characterized in that said dip tube is slidably mounted axially in said intake passage.
  • said intake passage comprises a retention means allowing the sliding of the dip tube preferentially towards said device.
  • Said means of retention can be an inner peripheral lip of the duct intake, having a notch shape and delimited by a lower sliding surface slightly inclined with respect to the dip tube and converging towards said device, and by an upper stop surface making with the dip tube an angle greater than or equal to 90 °.
  • the dip tube comprises a retention means allowing the sliding of the dip tube preferentially towards said device.
  • Said retention means may be a peripheral lip of the dip tube, having a notch shape and delimited by an upper sliding surface slightly inclined with respect to the intake passage and converging towards said device, and by a lower stop surface making with the intake duct an angle greater than or equal to 90 °.
  • said device comprises at least one actuating member which slides in the body and an inlet valve which slides with the actuating member
  • the inlet valve comprises a peripheral skirt which s extends towards the inlet passage of the device
  • the body has a cylindrical surface against which the skirt of the inlet valve engages in sealed peripheral contact when the actuating means is moved sufficiently towards the inlet passage
  • skirt is coaxial with the dip tube
  • the skirt has an inside diameter greater than the outside diameter of the dip tube
  • the dip tube can penetrate the body of the device to a position where the skirt slides by surrounding a part of the tube -diver on at least part of its stroke. The dip tube can then enter the body of the device over a large distance.
  • a helical spring coaxial with the dip tube and with an inner diameter greater than the dip tube, is mounted between the intake passage and the inlet valve, so as to push the inlet valve and the means of actuation upwards, and the dip tube penetrates inside the spring when said dip tube slides towards said device.
  • the dip tube is then used to center the spring.
  • the intake passage may comprise at least one inner peripheral sealing lip applied elastically against the dip tube.
  • the dip tube may include at least one outer peripheral sealing lip applied elastically against the intake passage.
  • the intake passage is a duct having a length equal to at least once the diameter of the dip tube, so as to guide said dip tube.
  • the friction between the dip tube and the intake duct is sufficient to prevent the movement of said dip tube when it is subjected to a stress of less than about 49 N (5 kg).
  • said dip tube has a lower end cut not perpendicular to the axis of the tube.
  • FIGS 1 to 3 show an example of a pump according to a preferred embodiment of the invention.
  • a manual pump for distributing or spraying fluid, liquid or pasty product is described in documents FR-2,305,241 and 2,314,772.
  • the various component parts of the pump are made of plastic.
  • 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. of product.
  • a product reservoir such as for example a crimpable metal capsule 13
  • 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 outward by a widening 18 which is extended to the end 11 by a substantially cylindrical wall 19.
  • the bottom 15 can be extended axially outward 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 end piece 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 leaving of the framework of the present invention: in this case, the tubular endpiece 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 disposed between the piston 2 and the bottom 15 of the pump body 1, and elastically biased towards the piston 2 by a generally metallic spring 10, in helical shape with an inside diameter preferably greater than the outside diameter of the tube 5, which rests on the bottom 15 of the pump body.
  • the valve 6 comprises an axial needle 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 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.
  • the dip tube 5 is slidably mounted with friction in the tubular conduit 14, and not force-fitted as is usual.
  • the inside diameter of the pipe 14 is slightly greater than the inside diameter of the dip tube 5, so that there is a certain clearance between the dip tube 5 and the pipe 14, and, as shown, in FIG. 2, the pipe tubular 14 comprises an inner peripheral sealing bead 14a of small thickness (for example about 0.1 mm), which ensures leaktight contact between the dip tube 5 and the conduit 14 by peripheral elastic support on the dip tube 5.
  • the tightening force of the cord 14a on the dip tube 5 can be quite large, and the contact surface between the cord 14a and the dip tube 5 is very small, so that the pressure exerted by the cord 14a on the tube plunger 5 is very large, which allows excellent sealing.
  • the contact surface between the bead 14a and the dip tube 5 is very small, the friction between the cord 14a and the dip tube 5 are limited, and therefore do not prevent the sliding of the dip tube 5 in the tubular conduit 14.
  • the friction between the cord 14a and the dip tube 5 is however sufficient to prevent accidental sliding of the tube 5, especially during assembly or handling of the pump.
  • the friction may be sufficient to prevent the displacement of the dip tube (5) under a stress less than or equal to 49N (5 kg).
  • the tubular conduit 14 could comprise only the cord 14a. It may further comprise, in the particular embodiment of Figures 1 to 3, a retention means 14b which allows the dip tube 5 to slide in the duct 14 towards the end 11 of the pump body, but prevents or brakes its movement in the opposite direction.
  • the retention means 14b can take the form of a peripheral inner lip 14b in the form of a wedge, which in this particular example is shown adjacent to the intake orifice 16, but which could be located elsewhere in the tubular conduit 14.
  • the sealing bead 14a could be omitted in this particular example, the lip 14b then ensuring both its role of retention and a sealing function.
  • the inner lip 14b has a frustoconical sliding surface 14d, closer to the inlet end 14c of said conduit 14, and an annular stop surface 14f, further from the inlet end 14c of the duct 14.
  • the sliding surface 14d converges towards the pump chamber 20 while being slightly inclined relative to a dip tube 5 inserted in the duct 14, while the stop surface 14f is directed towards said pump chamber 20 and substantially perpendicular to a dip tube inserted in the conduit 14.
  • the sliding surface 14d always forms an acute and small angle ⁇ with the dip tube 5, but the stop surface 14f is itself frustoconical and converges towards the pump chamber 20 , forming with the dip tube 5 an angle ⁇ greater than 90 °.
  • the sliding surface 14d is slightly inclined relative to the dip tube 5 - or to a rod replacing the dip tube 5 - and the stop surface 14f makes with the dip tube 5 a greater angle ⁇ or equal to 90 °.
  • the retention lip 14b is arranged so that the preferred direction of sliding of the tube 5 is directed towards the pump chamber 20.
  • the sealing bead 14a and / or the peripheral lip 14b could be formed on the dip tube 5 and more particularly outside of the tube 5, with an identical shape.
  • the outer peripheral lip of the tube 5 would then be delimited by a sliding frustoconical surface 14d slightly inclined relative to the intake duct 14 and converging in the direction preferential sliding of said tube, and by a stop surface 14f making with the intake duct 14 an angle greater than or equal to 90 °.
  • the dip tube 5 is rigid. This rigidity can be obtained by giving it a large wall thickness and / or by producing it in a rigid material, for example polypropylene.
  • the dip tube 5 has a lower end 5a provided with a bevel 5b whose usefulness will be seen later.
  • the two ends of the dip tube 5 can be provided with identical notches, which simplifies mounting by allowing any end of said dip tube to be fitted into the duct 14.
  • the dip tube 5 is partially fitted into the tubular conduit 14.
  • the friction between the cord 14a of the tubular conduit 14 and the dip tube 5 is sufficient for said dip tube 5 thus remains partially fitted until the pump is mounted on its reservoir.
  • a length L1 of the dip tube leaves the tubular conduit 14 towards the outside of the pump.
  • the pump is then mounted on a tank 22 having a bottom 23.
  • the bottom 23 of the tank is separated from the tubular conduit 14 by a distance L2 less than L1 .
  • the dip tube 5 is therefore pushed back by the bottom 23 by a distance L1-L2 towards the inside of the pump body, without going beyond a position where said dip tube could abut against valve 6 when the pump is actuated.
  • the lower end 5 of said dip tube remains in contact with the bottom 23. This does not interfere with the aspiration of the product by the dip tube 5, thanks to the bevelled notch 5b already described above.
  • the notch 5b in bevel could be replaced by an axial slot or a cut at an angle from the end 5a of the dip tube 5, or any other cut not perpendicular to the axis of said dip tube 5, so that the contact between the end 5a of the tube 5 and the bottom 23 is not sealed.
  • This arrangement is particularly advantageous with a reservoir, the bottom 23 of which has an upper surface 23a converging towards a central low point 23b, on which the lower end 5a of the dip tube 5 rests.
  • the lower end 5a of the tube plunger 5 is at the bottom point of tank 22 and can suck the product contained in tank 2 Up to the last drop. This is particularly important when the product to be sprayed or dispensed is expensive.
  • the dip tube 5 slides in the intake duct 14, it has a small outside diameter, and therefore it can reach the bottom point 223a of the bottom of the tank, even when the bottom surface 23a forms an acute point. . In all cases, we can therefore suck the product contained in the tank, until the last drop.
  • the intake duct 14 in itself plays only a role in guiding the tube 5, the sealing and holding functions of the tube 5 being fulfilled by the cord 14a and / or the lip 14b. If the guidance of the tube 5 does not need to be very precise, the conduit 14 may be very short, or even reduced to the thickness of the bottom 15 of the pump body 1, the guidance of the tube 5 then being done only by the spring 10. On the other hand, if the guide of the tube 5 in its sliding must be very precise, the conduit 14 will be given a sufficient length, for example at least once the diameter of the tube 5.
  • any manual pump or valve for spraying or dispensing is capable of being fitted with a sliding dip tube, which allows the adjusting the external length of said dip tube when mounting the pump or the valve on its reservoir, so that the lower end of the dip tube is exactly in contact with the bottom of the reservoir.
  • valve here is meant specifically aerosol valves.
  • FIG. 4 represents a manual pump comprising an inlet valve 50 having a seal 51 adapted to close off an inlet orifice 16 of the pump.
  • the dip tube 5 cannot enter the pump chamber, due to the seal 51.
  • the pump comprises a tubular intake duct 14, with an internal diameter slightly greater than the external diameter of the tube 5, on Which one is nested tightly a socket 52 having a bottom 53 having an upper face 53a directed towards the duct 14 and a lower face 53b.
  • the bottom 53 is pierced with a central orifice 54 flared downwards, that is to say towards the product reservoir.
  • the orifice 54 has an inside diameter slightly smaller than the outside diameter of the dip tube 5 in the vicinity of the bottom surface 53a, and an inside diameter greater than the outside diameter of the dip tube 5 near the bottom surface 53b of the bottom. 53.
  • the dip tube 5 is fitted into the conduit 14 through the orifice 54, so that it is guided by the conduit 14 and clamped by the bottom 53 of the sleeve 52, which thus ensures the seal between the tube 5 and the pump and the maintenance of the tube 5, while allowing it to slide.
  • the flared shape of the orifice 54 facilitates the sliding of the tube 5 towards the inside of the duct 14, while the upper surface 53a of the bottom 53, perpendicular to the tube 5, makes sliding in the opposite direction difficult or impossible.
  • the bottom 53 fulfills both the function of the cord 14a and of the lip 14b of FIG. 2.
  • the orifice 54 of the bottom 53 could be pierced cylindrical, and include an inner sealing lip such as the cord 14a of FIG. 2.
  • the sleeve 52 could be omitted, and the tubular conduit 14 could then simply be provided with an inner peripheral sealing bead similar to the bead 14a in FIG. 2.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
EP92400374A 1991-02-14 1992-02-12 Vorrichtung zur Zerstäubung oder Abgabe eines flüssigen Produktes mit einem Schiebesteigrohr im Saugrohr Expired - Lifetime EP0499537B1 (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
EP0499537A1 true EP0499537A1 (de) 1992-08-19
EP0499537B1 EP0499537B1 (de) 1995-05-17

Family

ID=9409698

Family Applications (2)

Application Number Title Priority Date Filing Date
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

Family Applications Before (1)

Application Number Title Priority Date Filing Date
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

Country Status (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2017011A1 (de) 2007-07-18 2009-01-21 GAPLAST GmbH Behälter für einen Pumpspender, dessen Boden einen vertieften Bereich aufweist

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19749514A1 (de) * 1997-11-08 1999-05-12 Pfeiffer Erich Gmbh & Co Kg Verfahren zum Ausbringen von wenigstens zwei verschiedenen Medien und Spender dafür
FR2776633B1 (fr) * 1998-03-26 2000-06-09 Valois Sa Dispositif de distribution airless

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031930A1 (de) * 1979-12-17 1981-07-15 Ethyl Products Company Pumpe mit Druckspeicherung
DE3545409A1 (de) * 1985-12-20 1987-07-02 Pfeiffer Erich Gmbh & Co Kg Austragsvorrichtung fuer fliessfaehige medien

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593147B1 (fr) * 1986-01-17 1988-03-18 Aerosol Inventions Dev Conditionnement sterile de substances fluides liquides et semi-liquides.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031930A1 (de) * 1979-12-17 1981-07-15 Ethyl Products Company Pumpe mit Druckspeicherung
DE3545409A1 (de) * 1985-12-20 1987-07-02 Pfeiffer Erich Gmbh & Co Kg Austragsvorrichtung fuer fliessfaehige medien

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2017011A1 (de) 2007-07-18 2009-01-21 GAPLAST GmbH Behälter für einen Pumpspender, dessen Boden einen vertieften Bereich aufweist

Also Published As

Publication number Publication date
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
EP0499520A1 (de) 1992-08-19
DE69202356D1 (de) 1995-06-14
EP0499537B1 (de) 1995-05-17
DE69202356T2 (de) 1995-10-26

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