EP0394750A2 - Pompe de dosage pour bouteilles ou autres récipients - Google Patents

Pompe de dosage pour bouteilles ou autres récipients Download PDF

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Publication number
EP0394750A2
EP0394750A2 EP90106888A EP90106888A EP0394750A2 EP 0394750 A2 EP0394750 A2 EP 0394750A2 EP 90106888 A EP90106888 A EP 90106888A EP 90106888 A EP90106888 A EP 90106888A EP 0394750 A2 EP0394750 A2 EP 0394750A2
Authority
EP
European Patent Office
Prior art keywords
pump
bellows
pot
approximately
pump bellows
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.)
Withdrawn
Application number
EP90106888A
Other languages
German (de)
English (en)
Other versions
EP0394750A3 (fr
Inventor
Uwe Birmelin
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.)
Megaplast Dosiersysteme GmbH and Co
Original Assignee
Megaplast Dosiersysteme GmbH and Co
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 Megaplast Dosiersysteme GmbH and Co filed Critical Megaplast Dosiersysteme GmbH and Co
Publication of EP0394750A2 publication Critical patent/EP0394750A2/fr
Publication of EP0394750A3 publication Critical patent/EP0394750A3/fr
Withdrawn legal-status Critical Current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
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00442—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being actuated by the difference between the atmospheric pressure and the pressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

Definitions

  • the invention relates to a metering pump which can be placed in particular on bottles or the like, with a pump bellows and two valves, of which the one inlet-side valve is seated in the bottom region of a pot which is plug-connected to the elastically returning pump bellows and comprises the pump bellows, a movable upper pump part being guided on the pot wall , to which the second outlet-side valve is assigned, to which a mouthpiece channel is connected, and in the area where the pump bellows is plug-connected to the pump upper part, the pump bellows forming a foot support ring at its lower end, starting from the lowest pump bellows fold, on a collar of the Sits on the bottom of the pot and forms a free-standing lip section which projects radially over the collar of the bottom of the pot.
  • the lip section of the pump bellows takes a slightly roof-shaped, rotationally symmetrical course of inclination lying in the bellows assignment direction;
  • the guide system touches the inside wall of the pot, which contact is also advantageous for reasons of closure technology, it can happen with unfavorable tolerance pairs that the lip section folds back against the plug assignment direction of the pump bellows and maintains this position. Since tensions flow into the foot support ring depending on the extent of the refolding, the bellows support and the desired sealing seat on the collar of the pot base can be impaired.
  • the object of the invention is a metering pump of the type shown while maintaining the advantageous To optimize basic principles with regard to the formation and allocation of bellows.
  • the lip section can no longer come into a fold-back constellation; the seal on the collar of the base of the pot proves to be reliable, so that the function of the dispenser is flawless.
  • the structural means are simple and functional. The procedure is such that, starting from a point of connection of the lip section with the foot support ring, the fold leg of the end fold of the pump bellows extends upwards and outwards and the lip section extends downwards and outwards in such a way that the lip section encloses approximately a right angle with the fold leg, where the bisector is approximately horizontal. The corresponding, now steeper inclined position of the lip section prevents any folding back.
  • the functionally appropriate system on the inner wall of the pot is corrected by increasing the orientation of the fold.
  • the annular space between the outer wall of the collar and the inner wall of the pot wall is fully bridged in terms of support technology. Accordingly, the maturing stabilizing effect of the lip section can be optimally used.
  • the fact that the folding leg also migrates outwards means that the connection point also lies further in the direction of the longitudinal central axis of the pump bellows.
  • the radial clearance zone can now also be used in terms of bellows volume. This practically implies a lower overall height of the metering pump. You get by with a short stroke instead of a long stroke.
  • the invention is also characterized in that the pump bellows merges into a lower end ring, that the end ring has a greater thickness than the pump bellows and that the lip section and the foot support ring are integrally formed on the end ring and extend downward.
  • This end ring gives the pump bellows a stabilization zone in its lower region, which enables the connection of the downwardly extending foot support ring and the downwardly extending lip section.
  • the lip section extends over an air inlet opening of the base of the pot in the manner of a sealing lip and, for this purpose, interacts with the inside wall of the pot in a closure-like manner. The volume dispensed in the bottle is compensated via such an air inlet opening.
  • the lip section With a corresponding negative pressure in the bottle space, the lip section stands out slightly from its seat formed by the inner wall of the pot. Especially when performing such a closure function, it is of great importance that the lip section does not fold back during assembly.
  • the very steep orientation chosen according to claim 1 prevents this, as already said, with certainty.
  • the circumferential lip edge recedes behind a cylinder surface which receives the pump bellows in the area of the pump bellows folds. This has both a manufacturing advantage and a structural advantage. Above all, demolding is simplified because exposed radial projections are no longer are available. This measure also allows full use of the existing bellows receiving space with regard to the bellows volume.
  • the pot in its lower region forms a funnel tapering towards the pot bottom, which ends in a cylindrical section of the inner wall of the pot, the lip edge resting in this section.
  • This also has the advantage of the most favorably usable precentering, since the lip section projecting downwards is centered by the funnel before the support ring seals onto the collar of the pot base.
  • the blind assembly of the bellows is optimized.
  • the lip section can be given a slight pretension due to the constriction of the lip edge due to the funnel.
  • the cylindrical section is formed within the projected cylinder surface.
  • an advantageous feature of the invention is that the support ring, starting from the connection point, is approximately hook-shaped, composed of an approximately horizontally extending area and an approximately vertically extending area, the vertically extending area projecting into the neck as an inner collar.
  • hook-shaped naturally means a rotationally symmetrical structure.
  • the other side fastening of the pump bellows is finally solved structurally in that the upper end of the pump bellows is approximately cylindrical in shape, with a diameter corresponding approximately to that of the cylinder surface, for sealing placement on a correspondingly designed, nozzle-shaped area of the pump upper part.
  • the metering pump 1 is screwed onto the neck 2 of a bottle 3.
  • the external thread of the bottle neck 2 is designated 4; the internal thread 5 which can be brought into engagement with it is located on a screw cap 6.
  • the cap screw cap 6 holds an annular flange 7 of a pump lower part 8 which forms the pump housing G.
  • the lower pump part 8 is designed as a pot T.
  • the section a of the pot T or pump lower part 8 lying below the ring flange 7 extends in the opening O of the bottle neck 2, essentially filling this opening completely.
  • the pot T is extended beyond the plane delimiting the opening ⁇ below, which forms a radially outwardly directed shoulder 11; the bottom of the pot 12 is clearly below the shoulder 11.
  • the section b of the pump lower part 8 extending above the horizontal, circumferential ring flange 7 is of approximately the same length as the axial height of the opening ⁇ .
  • the pump bottom part 8 which is cylindrical on its predominant axial length section, extends through a central opening 13 of the screw cap 6.
  • the free-standing section b extends above it and slidably receives a guided pump top part 14 on the inside with limited stops. Its support in the basic position is provided by an annular collar 15 molded onto it on the outside, which treads against an inner shoulder 16 of the upper section b of the lower pump part 8.
  • the upper pump part 14 is cup-shaped Ge stalt with upward opening and has a stepped cylindrical cross-section.
  • the basic position of the upper pump part 14 is under spring loading.
  • the spring force is applied by a pump bellows B incorporated into the pump housing G.
  • the latter consists of a resilient plastic material. It is realized as a molded part and has a number of bellows folds 17 adjoining one another in cross section in a zigzag shape. It is ring folds.
  • the peripheral turns 17 'of the bellows folds 17 extend on a common theoretical cylinder surface 18, as well as the inward turns 17 ⁇ .
  • the pump bellows B which is open axially and continuously, is connected at both ends to the pump lower part 8 plus pump upper part 14 forming the pump housing G.
  • the plug connections are also sealing points.
  • the plug connection / sealing point is formed on a collar 19 extending from the horizontal bottom 12 of the pot T.
  • the latter extends concentrically to the longitudinal central axis x-x of the metering pump 1 and is thus concentric with the pot wall W of the pot T.
  • An inner socket 20 enters the cavity of the said collar 19.
  • the latter like the collar 19, is cylindrical in shape. It (20) starts from a horizontally extending foot support ring 21 of the bellows B. This sits with its underside on the end face 19 'of the collar 19. The width of the underside corresponds to that of the annular end face 19 '.
  • a free-standing lip section 22 attaches to the outer edge of the foot ring 21.
  • This is the bellows body molded with the same material.
  • the relevant, node-like connection point bears the reference number 23.
  • the latter includes a somewhat longer folding leg 24 than the other folding legs of the bellows folds 17, which runs into the aforementioned annular zigzag structure of the bellows, via the peripheral bend 17 'of the there final fold 17 ′′′.
  • the spatial / functional structure is such that, starting from the point of connection 23 of the lip section 22 with the foot support ring 21, the folding leg 24 of the end fold 17 ′′′ of the pump bellows B extends upwards and outwards and the lip section 22 extends downwards and outwards (cf. the basic position according to FIG. 2).
  • the corresponding orientations are such that the lip section 22 with the folding leg 24 shoots in an outwardly opening right angle alpha, the bisector z-z running approximately horizontally, that is perpendicular to the longitudinal central axis x-x of the metering pump 1. So there is practically a Y-shaped fork.
  • the inward web of the Y is the foot ring 21.
  • the circumferential lip edge 22 ' does not protrude from the cylinder surface 18.
  • the clear distance of the pump lower part 14 can be optimally used in space.
  • the peripheral bends 17 'defining the cylindrical surface 18' are, however, held in a contact-free distance y from the corresponding inner surface of the pot T.
  • the pot T is shaped into a funnel 25 in the lower region, approximately at the level of the shoulder 11. This opens upwards. Its rotationally symmetrical flank 26 intersects the cylinder surface 18. Following the said flank 26 also merges the pot T into a cylindrical section 27, which therefore has a smaller clear diameter than the cylindrical section of the inner wall of the pot that extends above said flank 26.
  • the lip edge 22 ' is supported with a certain slight bias on the pot bottom 12 facing section 27 of the pot.
  • This section 27 thus functions practically as a closure or valve seat surface.
  • the downward tapering can, however, be defused, so that the centering for the pump bellows B slipping of the lip edge 22 'over the flank 26 proves to promote sliding.
  • the lip edge 22 occurs primarily in the centering contact to said funnel flank 26, so that the subsequent entry of the inner connector 20 in the collar 19 is optimally aligned.
  • the slightly constricting lip section which acts as a fulcrum in the connection location 23, approximately narrows the inner connector 20 towards the free end.
  • the funnel 28 formed on the underside of the lip section 22 also has a centering effect.
  • the funnel 28 opens downward and in the final phase promotes the centering incorporation of the collar 19 into the funnel base.
  • the funnel 25 forming the flank 26 has a helix angle of approximately 30 °. So it ends relatively steeply into the portion 27 formed within the cylinder surface 18.
  • the procedure here is such that the upper end of the pump bellows B is approximately cylindrical.
  • This cylindrical plug-in section bears the reference number 29.
  • Its jacket wall terminates approximately with the cylindrical surface 18, i. H. its outer diameter corresponds essentially to that of the cylinder surface 18.
  • the corresponding plug-in projection is located at the lower end of the pot-shaped pump upper part 8.
  • the relevant neck-shaped area bears the reference number 30.
  • a horizontal annular shoulder 31 produced by the removal of the outer wall of the pump upper part 14 functions as an axial limit stop for the attached pump bellows B.
  • inlet valve V1 In the center of the horizontal bottom 12 there is an inlet valve V1.
  • Whose valve seat surface is designated 32. It is a funnel-shaped surface which is shaped in the transition area to a downward-facing, central connecting piece 33. The latter receives a riser pipe 34 which extends to just before the bottom of the bottle 3 (not shown).
  • the opening limit stop for the inlet-side valve V1 forms the downward-facing end edge 20 'of the inner socket 20.
  • Radial channels 35 formed on the upper side of the valve body, enable the substance to be dispensed to pass properly through the bellows body even when the valve disc strikes.
  • An outlet-side valve V2 of the metering pump 1 is located in the upper fastening area between the pump bellows B and the pump upper part 14, which is guided in a vertically movable manner.
  • Its valve seat surface 36 also has a funnel shape.
  • the valve seat surface is located in a central, downward protuberance zone in the bottom of the pump upper part 14.
  • the closed position of this valve V2 is under spring load.
  • a plate-shaped spring collar 37 is formed on the upper end of the valve body. Whose rim is supported on a cover part 38 of the metering pump 1. The latter is connected to the pump upper part 14.
  • the actual support surface is the downward-facing, annular end edge 39 of the cover part 38.
  • Another function of the cover part 38 closing the metering pump 1 upwards is that of forming an actuating surface 41. This is the top of the ceiling of the cover part 38.
  • a third functional extension is that an axially directed strip 44 extends from the jacket wall of the pump upper part 14 on the left-hand side. The latter projects with its lower end face 44 'from the corresponding end edge 8' of the pump lower part 8.
  • the inner wall of the pot-shaped pump lower part then forms a guide groove 45.
  • the pump upper part 14 can be pump-actively displaced by actuating the dispenser head. If the end 44 'takes an offset position to the guide groove 45, it hits the end face 8' of the pump upper part 8.
  • a third valve or a closure can be taken over by the funnel-shaped lip section 22 which is turned down like a cuff.
  • This valve has the reference symbol V3.
  • the latter allows the air to be equalized as the filling content decreases, which is why the bottom 12 of the pot T, below the covering zone of the lip section 22, leaves an air inlet opening 46.
  • the latter creates a connection from the interior of the bottle 3 to the joint area open to the outside between the lower pump part 8 and the upper pump part 14.
  • the pump chamber is designated 47.
  • the function of the metering pump 1 shown is as follows: by exerting a compressive force in the direction of arrow P, the pump bellows B is compressed. The excess pressure occurring in the pump chamber 47 of the pump bellows B keeps the inlet valve V1 closed. The medium in the pump chamber 47 (fluid or pasty) is displaced and, when a certain pressure threshold is reached, escapes via the outlet-side valve V2, which opens abruptly, passes through the interior 48 of the pump upper part 14 via openings 40 into the head 49 of the cover part 38, and then via the nozzle-like or strand-forming mouthpiece channel 42 to resign.
  • the volume spent in the bottle storage area is supplemented by air.
  • the relevant valve V3, ie lip section 22, lifts up from the corresponding valve seat surface, so that air can flow in in the direction of arrow A.
  • a lower end ring 50 is formed, in which the pump bellows, more precisely the folding leg 24, merges in this embodiment. Specifically via a curvature 51, so that the folding leg 24 runs approximately vertically from above into the end ring 50.
  • the end ring 50 has a greater thickness d than the pump bellows, for example the end fold 24 extending substantially downward - the lip portion 22 and a foot support ring 52 are formed.
  • the end ring 50 extends radially over a peripheral bends 17 'of the bellows folds 17 receiving common theoretical cylinder surface 18. It occurs radially outwards over this theoretical cylinder surface 18.
  • end ring 50 has an approximately rectangular cross section and extends essentially perpendicular to an axis of the cylinder surface 18.
  • the foot support ring 52 goes from a directly adjacent to the end ring 50, approximately V-shaped tapered area 52 'in an area 52 ⁇ constant thickness.
  • the lap section 22 includes an obtuse angle of approximately 100 ° with a horizontal line passing through the end ring 50. Furthermore, the lip section 22 and the foot support ring 52 are each formed with a length which corresponds approximately to 4 to 5 times the thickness of the end ring 50. In addition, the lip section 22 also has an insertion bevel at its outer end, for insertion into the narrowed pot area.
  • the inlet-side valve V1 is designed as a central valve pot which is connected to the end ring 50 via webs 53.
  • the valve pot is raised by the suction effect and liquid can be sucked through the riser pipe 34 and the openings 54 between the webs 53 into the pump bellows and thus into the pump chamber.

Landscapes

  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
EP19900106888 1989-04-24 1990-04-10 Pompe de dosage pour bouteilles ou autres récipients Withdrawn EP0394750A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8905137U DE8905137U1 (fr) 1989-04-24 1989-04-24
DE8905137U 1989-04-24

Publications (2)

Publication Number Publication Date
EP0394750A2 true EP0394750A2 (fr) 1990-10-31
EP0394750A3 EP0394750A3 (fr) 1991-05-08

Family

ID=6838599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900106888 Withdrawn EP0394750A3 (fr) 1989-04-24 1990-04-10 Pompe de dosage pour bouteilles ou autres récipients

Country Status (3)

Country Link
EP (1) EP0394750A3 (fr)
JP (1) JPH03655A (fr)
DE (1) DE8905137U1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2671330A1 (fr) * 1991-01-08 1992-07-10 Valois Distributeur manuel portatif a pompe pour creme et cosmetique.
DE4110302A1 (de) * 1991-03-28 1992-10-01 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
DE4110303A1 (de) * 1991-03-28 1992-10-01 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
US5238156A (en) * 1990-12-21 1993-08-24 Firma Raimund Andris Gmbh & Co., Kg. Metering and spray pump for dispensing liquid, low-viscosity, and pasty substances
EP0649682A2 (fr) * 1990-10-01 1995-04-26 Take 5 Pulvérisateur manuel comprenant plusieurs réservoirs de fluide
EP0720951A1 (fr) * 1995-01-05 1996-07-10 Calmar Inc. Distributeur à pompe à soufflets
WO1996037308A1 (fr) * 1995-05-23 1996-11-28 Frimec Fritz Meckenstock Gmbh + Co. Pompe actionnee par un levier
US5664703A (en) * 1994-02-28 1997-09-09 The Procter & Gamble Company Pump device with collapsible pump chamber having supply container venting system and integral shipping seal
EP0941208A1 (fr) * 1996-04-05 1999-09-15 Yoshino Kogyosho Co., Ltd. Pompe a soufflet presentant une tete d'alimentation a embout et a depression
EP2763796B1 (fr) 2011-10-05 2015-11-25 Alfred Von Schuckmann Distributeur de substances pâteuses
EP3736049A1 (fr) * 2019-05-06 2020-11-11 Aptar Radolfzell GmbH Tête distributrice et distributeur de liquide comprenant une tête distributrice

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405057A (en) * 1993-10-21 1995-04-11 Moore; David G. Manually actuated pump
DE4441263A1 (de) * 1994-11-19 1996-05-23 Caideil M P Teoranta Tormakead Austragvorrichtung für Medien
DE19638602A1 (de) * 1995-10-31 1997-05-15 Fritz Meckenstock Auslaßventil, insbesondere für eine handbetätigte Pumpe und handbetätigte Pumpe
DE19606703A1 (de) * 1996-02-22 1997-08-28 Caideil M P Teoranta Tourmakea Austragvorrichtung für Medien
DE19723134A1 (de) * 1997-06-03 1998-12-10 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
JP4021268B2 (ja) 2002-07-24 2007-12-12 勝利 増田 流体吐出ポンプ
US7111761B2 (en) 2003-07-03 2006-09-26 Masatoshi Masuda Fluid discharge pump and fluid container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194417A2 (fr) * 1985-03-14 1986-09-17 MegaPlast Dosiersysteme GmbH & Co. Pompe de dosage avec soufflet de pompage pour bouteilles ou flacons similaires
EP0304567A1 (fr) * 1987-07-07 1989-03-01 Raimund Andris Pompe de dosage pour matières liquides et/ou visqueuses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194417A2 (fr) * 1985-03-14 1986-09-17 MegaPlast Dosiersysteme GmbH & Co. Pompe de dosage avec soufflet de pompage pour bouteilles ou flacons similaires
EP0304567A1 (fr) * 1987-07-07 1989-03-01 Raimund Andris Pompe de dosage pour matières liquides et/ou visqueuses

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0649682A2 (fr) * 1990-10-01 1995-04-26 Take 5 Pulvérisateur manuel comprenant plusieurs réservoirs de fluide
EP0649682A3 (fr) * 1990-10-01 1995-11-02 Rudy Roy Proctor Pulvérisateur manuel comprenant plusieurs réservoirs de fluide.
US5238156A (en) * 1990-12-21 1993-08-24 Firma Raimund Andris Gmbh & Co., Kg. Metering and spray pump for dispensing liquid, low-viscosity, and pasty substances
FR2671330A1 (fr) * 1991-01-08 1992-07-10 Valois Distributeur manuel portatif a pompe pour creme et cosmetique.
DE4110302A1 (de) * 1991-03-28 1992-10-01 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
DE4110303A1 (de) * 1991-03-28 1992-10-01 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
US5316198A (en) * 1991-03-28 1994-05-31 Ing. Erich Pfeiffer Gmbh & Co. Kg Media dispenser with elastically deformable plunger
US5664703A (en) * 1994-02-28 1997-09-09 The Procter & Gamble Company Pump device with collapsible pump chamber having supply container venting system and integral shipping seal
EP0720951A1 (fr) * 1995-01-05 1996-07-10 Calmar Inc. Distributeur à pompe à soufflets
WO1996037308A1 (fr) * 1995-05-23 1996-11-28 Frimec Fritz Meckenstock Gmbh + Co. Pompe actionnee par un levier
EP0941208A1 (fr) * 1996-04-05 1999-09-15 Yoshino Kogyosho Co., Ltd. Pompe a soufflet presentant une tete d'alimentation a embout et a depression
EP0941208A4 (fr) * 1996-04-05 1999-09-15
EP2763796B1 (fr) 2011-10-05 2015-11-25 Alfred Von Schuckmann Distributeur de substances pâteuses
EP3736049A1 (fr) * 2019-05-06 2020-11-11 Aptar Radolfzell GmbH Tête distributrice et distributeur de liquide comprenant une tête distributrice
WO2020225223A1 (fr) * 2019-05-06 2020-11-12 Aptar Radolfzell Gmbh Tête de décharge et distributeur de liquide pourvu d'une tête de décharge
US20220250105A1 (en) * 2019-05-06 2022-08-11 Aptar Radolfzell Gmbh Discharge head and liquid dispenser comprising a discharge head
US11938495B2 (en) 2019-05-06 2024-03-26 Aptar Radolfzell Gmbh Discharge head and liquid dispenser comprising a discharge head

Also Published As

Publication number Publication date
DE8905137U1 (fr) 1990-08-23
JPH03655A (ja) 1991-01-07
EP0394750A3 (fr) 1991-05-08

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