EP0199143A1 - Pompe à piston coulissant pour délivrer des substances fluides - Google Patents

Pompe à piston coulissant pour délivrer des substances fluides Download PDF

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Publication number
EP0199143A1
EP0199143A1 EP86104327A EP86104327A EP0199143A1 EP 0199143 A1 EP0199143 A1 EP 0199143A1 EP 86104327 A EP86104327 A EP 86104327A EP 86104327 A EP86104327 A EP 86104327A EP 0199143 A1 EP0199143 A1 EP 0199143A1
Authority
EP
European Patent Office
Prior art keywords
piston
pump
piston rod
sleeve
spiral spring
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
EP86104327A
Other languages
German (de)
English (en)
Other versions
EP0199143B1 (fr
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
Erich Pfeiffer GmbH
Ing Erich Pfeiffer GmbH
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 Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP0199143A1 publication Critical patent/EP0199143A1/fr
Application granted granted Critical
Publication of EP0199143B1 publication Critical patent/EP0199143B1/fr
Expired 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
    • B05B11/01—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
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material

Definitions

  • the invention relates to a manually operated thrust piston pump for dispensing media, with a piston unit which can be displaced in a cylinder against at least one spiral spring, in particular made of plastic, whose pump piston lying approximately in the pump axis delimits a pump chamber with the cylinder.
  • a pump of this type which can be placed on a container has become known (EP 00 73 918 A1), which consists of an upper part which carries the pump piston, a lower part which forms the cylinder and a cover which carries an outlet nozzle and is plugged together with the upper part.
  • This cover has on its underside integral springs that are arranged in the form of spring arms curved in the circumferential direction on a ring around the pump axis. With their free ends, the spring arms are supported on a transverse wall of the lower part which is perpendicular to the pump axis and which surrounds the pump chamber in a ring. This results in a very space-consuming accommodation of the spiral spring, an unfavorable spring characteristic and a relatively large stiffness of the springs.
  • the invention has for its object to provide a thrust piston pump of the type mentioned, which ensures a protected and space-saving accommodation with a smooth construction of the spiral spring with a simple structure.
  • the spiral spring forms a component with the piston unit and lies in the pump chamber.
  • the spiral spring can lie completely within the envelope surface of the cylinder or the piston track.
  • the spiral spring lies within a space of the pump filled with the medium, so that, in particular when the spiral spring is slidably supported, there is generally good lubrication of the surfaces sliding against one another by the medium.
  • a particularly advantageous development of a thrust piston pump with a piston unit that can be displaced in a cylinder consists in that its pump piston, which is located approximately in the pump axis and surrounds a piston rod, by means of a sleeve-shaped, axially between a rear support surface and a front valve seat of an outlet valve.
  • Valve-preloaded elastic piston sleeve is formed, wherein the piston rod between its outer end and the support surface has an approximately from the clear cross section of the piston sleeve at least on the outer circumference of the support surface in the direction of this expanded and extending to the support surface expanding and assembly sliding section for the piston sleeve .
  • the distance between the support surface and the valve seat is precisely defined even before the piston sleeve is installed, and the axially resilient preload of the piston sleeve is precisely determined after the installation.
  • the piston sleeve can be assembled by a very simple method, namely by simply plugging it onto the piston rod from the outer end, after which the piston sleeve is automatically widened to such an extent by sliding towards the support surface on the expansion-sliding section that it becomes Overrun of the support surface springs back under resilient constriction and then rests against the support surface in a latched manner.
  • the piston sleeve is axially compressed at least so far from its end associated with the support surface that it has the prestress corresponding to its prestressed mounting position; however, it is also conceivable to compress the piston sleeve even further here and, after passing over the support surface and springing back axially, also spring back in the axial direction.
  • a thrust piston pump with a cylinder housing which has a cylinder cover that closes its outer end and a flange flange, in particular with this protruding flange edge, with an annular seal for the sealed attachment to the opening limitation of an active substance vessel, the annular seal being integral with the Flange edge is formed.
  • a ring seal formed by a separate, enclosed component this results in a 'very securely sealing engagement of the ring seal with simple design and considerably simplified installation, so that this design is particularly suitable for thrust piston pumps which can be arranged detachably on refillable containers.
  • the ring seal can be made very compact, space-saving and hygienic, since there is a significantly reduced number of mutually adjacent sealing surfaces and thus sealing gaps.
  • a push piston pump 1 has a two-part pump housing 2 and a piston unit 3 lying in its pump axis 4, which can be moved back and forth in the direction of the pump axis 4.
  • the pump housing 2 consists essentially of two components, of which the one component, which is reduced several times to the inner end, forms a cylinder 5, while the other component is a sleeve-shaped cylinder cover 6 which is the outer open end of the other component except on the end face
  • the inner circumference and the outer circumference overlap each with sleeve-shaped, concentrically located approaches 7,8.
  • a hose 10 or the like is to be inserted as a suction channel, the lower end of which is to be arranged in the bottom region of a vessel 11 indicated by dash-dotted lines in FIG. 1, in the vessel neck 12 of which the pump 1 is fastened in a sealed manner becomes.
  • the piston unit 3 has a piston rod 13, which is composed of two rod parts 14, 15 which lie essentially one behind the other and have their mutually facing ends, and which delimits, for example, a central outlet channel 16.
  • the piston rod 13 passing through the inner shoulder 7 of the cylinder cover 6 carries within the pump housing 2 a sleeve-shaped piston sleeve 17 which lies in the pump axis 4 and which on the inner part of its length has a sleeve-shaped piston lip 18 which is expanded in the shape of a truncated cone to its free end and decreases in wall thickness and forms a sleeve-shaped piston neck 19 with an approximately constant wall thickness at the outer end section.
  • the piston sleeve 17 forms, through an annular bead projection provided on its inner circumference, a valve body 21 of an outlet valve 20 which, in the closed position according to FIG. 2, bears against an annular valve seat 22 of the piston rod 24;
  • the inwardly frusto-conical valve seat 22 is formed by an annular shoulder of a rod head 23 which is provided at the inner end of the piston rod 13 and has a larger diameter than the inside diameter of the piston sleeve 17 in the region of the valve body 21 and is at least partially inside the piston lip 18 .
  • the diameter of the portion of the piston rod 13 or of the rod part 15 which adjoins the rod head 23 to the outside is at most as large as the outside diameter as the inside diameter of the relaxed piston neck 19 or slightly smaller.
  • the outer end of the piston sleeve 17 or the piston neck 19 is supported with its associated end face on an annular shoulder-shaped support surface 24 of the piston rod 13 with axial pretension, such that the piston neck 19 passes through the valve seat 22 and the support surface 24 when the piston sleeve 17 is tensioned Compression is resiliently biased in the axial direction and is slightly bulged, for example according to FIG. 2.
  • the support surface 24 is formed in the illustrated embodiment by the inner end surface of the outer rod part 14, which coaxially surrounds the outer end portion of the inner rod part 15.
  • the inner end of the inner shoulder 7 of the cylinder cover 6 forms stops cooperating with the piston sleeve 17 for determining the starting position of the piston unit 3
  • Piston sleeve 17 in the area of the transition between the piston lip 18 and the piston neck 19, that is to say approximately in the axial region of the valve body 21 on the outer circumference, has a truncated cone-shaped sealing and stop surface 25, which in the initial position of the piston unit 3 under the restoring force acting thereon inner boundary edge of the through opening 26 formed by the cylinder cover 6 for the piston unit 3 or the piston rod 13 abuts and thereby seals the associated space of the pump housing 2 from the outside; At the same time, this causes a stretching force on the piston sleeve 17, under which it is pressed against the valve seat 22 in addition to its own resilience.
  • the cylinder 5 forms on the inner circumference at least over the maximum stroke of the piston lip 18 or the pump piston 28 formed thereby, the cylindrical piston raceway 27.
  • the piston raceway 27 merges via an inner annular shoulder 29 into an inner cone 30 converging at an acute angle, which is formed by a continuation of the component of the pump housing 2 forming the cylinder 5.
  • an intake valve 31 in the form of, for example, a ball check valve is located in the intake path of the pump immediately adjacent to the end section 9.
  • the cylinder 5 and the inner cone 30 delimit a pump chamber 32, in which a spiral spring 33 is located as the return spring for the piston unit 3.
  • the spiral spring 33 is designed in an integral manner with the rod head 23 and has a plurality of spring arms 34 which are evenly distributed around the pump axis 4 and which project freely in the direction of the intake duct and diverge at an acute angle in the axial section in this direction.
  • the free ends 35 of the spring arms 34 bear against the sliding surface 36 which is inclined to the pump axis 4 and which is formed by the inner cone 30; the spring arms 34 can be designed so that they are approximately rectilinear in this state.
  • a counter member 38 is provided at the inner end of the piston rod 13, which is provided by a central punch common to all spring arms 34 and located in the pump axis 4 39 is formed, the circumferential surface of which at an acute angle merges into the radially inner boundary surfaces of the spring arms 35 in axial section.
  • This counter member 38 results in an increased rigidity of the spring arms 34 and a reduction in the free volume of the pump chamber 32 at the end of the pump stroke.
  • the spring arms 34 lie partially inside the piston sleeve 18, so that a very space-saving and compact design results.
  • the radially outer surfaces 40 of the spring arms 34 facing away from the pump axis 4 directly adjoin the outer circumference of the valve seat 22.
  • the outlet channel 16 of the piston rod 13 ends like a blind hole in the area of the rod head 23 and is connected via transverse channels 41 to that cylinder-jacket-shaped space which lies between the valve seat 22 and the support surface 24 within the piston sleeve 17.
  • the piston lip 18 runs onto the annular shoulder 29 according to FIG. 4, after which the piston rod 13 can be pushed further into the pump housing 2 by a predetermined opening distance until it reaches an associated stop position. In this case, the valve body 21 is lifted from the valve seat 22 according to FIG.
  • the outlet valve 20 is thereby opened, so that the medium located under pressure in the pump chamber 32 when the suction valve 31 is closed abruptly through the outlet valve 20, the transverse channels 41 and the outlet channel 16 can escape.
  • a discharge head 42 for manual operation of the pump is placed, which has the outlet opening of the pump, not shown.
  • the pump is particularly suitable for metering, atomizing and the like. The medium to be dispensed. Through the opening of the outlet valve 20, the piston neck 19 is axially resiliently stretched with further bulging.
  • FIGS. 5 to 7 the same reference numerals are used for corresponding parts as in FIGS. 1 to 4, but in FIG. 5 with the index "a”, in FIG. 6 with the index "b” and in FIG. 7 with the index " c "is used.
  • the piston rod 13a of the piston unit 3a is formed in one piece continuously over its length, so that the entire piston unit 3a consists of only two components, namely the piston rod 13a and the piston sleeve 17a, with the return spring simultaneously with the piston rod 13a the pump is made in one piece.
  • the rod head 23a has no central punch within the spring arms 34a of the spiral spring 33a.
  • the spring arms 34a can also be approximately straight in the completely relaxed state; they are expediently tapered uniformly at an acute angle to their free ends 35a.
  • the piston rod 13a has between its outer end 43 and the end Support surface 24a has a widening-sliding section 44 which extends approximately from the clear cross section of the piston sleeve 17a to the outer circumference of the supporting surface 24a and which lies on the outer circumference of the piston rod 13a between two mounting sliding sections 45, 46, which have a constant width over their length, preferably being cylindrical .
  • the expanding sliding section 44 is formed by a peripheral section which is widened at an acute angle in the shape of a truncated cone from the smaller outer diameter of the outer mounting sliding section 45 reaching to the end 43 to the larger diameter of the inner mounting sliding section 46, which has the same diameter as the support surface 24a Has outer circumference and continuously extends up to this.
  • the outer diameter of the outer assembly sliding section 45 is expediently at most as large as the inside width of the completely relaxed piston sleeve 17a or of its piston neck 19a.
  • the piston sleeve 17a is inserted from the outer end 43 onto the piston rod 13a and pushed over the expansion-sliding section 44, wherein it is expanded in a resilient manner.
  • the widening of the outer end of the piston neck 19a can take place in such a way that the piston neck 19a is adjacent to the support surface 24a even with a radially inward bias against the portion of the piston rod 13a adjoining the inner circumference of the support surface 24a.
  • the expansion-sliding section 44 which can also be used with a two-part design of the piston rod according to FIGS. 2 and 4, is expedient, as FIGS. 2 and 4 show, at the same time as a stop shoulder for the discharge head 42 to be plugged onto the outer end section of the piston rod 13 provided so that the axial position of the discharge head 42 relative to the piston rod 13 is precisely determined by this stop shoulder.
  • the expansion-sliding section 44 expediently begins approximately in the middle of the length between the outer end 43 and the support surface 24a.
  • the expansion sliding section 44b can also extend approximately to the support surface 24b, in such a way that the inner mounting sliding section 46 according to FIG. 5 is omitted and the expansion of the piston sleeve extends over a larger axial displacement path relative to the piston rod 13b.
  • the support surface 24b can be formed by a recessed ring-shaped stimulation shoulder, which is delimited on the outer circumference by a collar 47 projecting over it, which can be formed by a closed ring collar or individual cams distributed over the circumference.
  • the outer circumference of the collar 47 expediently forms a continuous continuation of the widening-sliding section 44b or, in the case of the embodiment according to FIG. 5, of the mounting-sliding section reaching as far as the supporting surface.
  • the pump housing 2 has an annular flange edge 49 which projects beyond its outer circumference and which is provided for the pump to bear against the outer end face of the vessel neck 12 and is made in one piece with a component of the pump housing 2, shown in FIG Embodiment is formed with the cylinder cover 6.
  • the flange edge lies at the inner end of the outer sleeve-shaped extension 8 of the cylinder cover 6 and projects beyond its outer circumference.
  • an annular seal 50 is provided which is formed in one piece with the flange rim 49 and thus with the cylinder cover 6.
  • the ring seal 50 projects axially inward beyond the ring shoulder 51, which is formed by the inner end face of the flange rim 49 and is intended to bear against the end face of the neck 12 of the vessel.
  • the sealing surface 52 formed by the outer circumference of the ring seal 50 is tapered in the shape of a truncated cone to its inner end and, following the ring shoulder 51, has its greatest width, which is slightly larger than the width of the opening of the vessel neck 12.
  • the ring seal 52 is exposed on the preferably cylindrical inner circumference, i.e. with a radial distance from the adjacent outer circumference of the pump housing 2 so that it can spring radially inwards without deformation of the pump housing.
  • a fastening cap 53 is used to fasten the thrust piston pump 1 to the vessel 11, which, for example as a screw cap, overlaps the vessel neck 12 on the outer circumference and rests with an inner shoulder on the outer annular end face of the flange rim 49 such that it is clamped against the end face of the vessel neck 12 and the Ring seal 52 engages in the vessel neck 12 under radial sealing pressure.
  • the fastening cap 53c can also be formed in one piece with a component of the pump housing 2c, in the exemplary embodiment shown with the cylinder cover 6c.
  • the end cap of the fastening cap 53c expediently forms the flange edge 49c, which in turn merges in one piece into the outer sleeve-shaped extension 8c of the cylinder 6c and into the ring seal 50c.
  • the design according to the invention makes it possible to produce thrust piston pumps which ensure very reliable operation with a very small number of components.
  • the entire piston rod and the return spring are formed by a single one-piece component; the cylinder housing or its cylinder cover can be combined with the fastening cap, the flange edge and the vessel seal to form one component.

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  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP86104327A 1985-04-24 1986-03-27 Pompe à piston coulissant pour délivrer des substances fluides Expired EP0199143B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853514719 DE3514719A1 (de) 1985-04-24 1985-04-24 Schubkolbenpumpe zur ausgabe von medien
DE3514719 1985-04-24

Publications (2)

Publication Number Publication Date
EP0199143A1 true EP0199143A1 (fr) 1986-10-29
EP0199143B1 EP0199143B1 (fr) 1989-06-14

Family

ID=6268940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104327A Expired EP0199143B1 (fr) 1985-04-24 1986-03-27 Pompe à piston coulissant pour délivrer des substances fluides

Country Status (4)

Country Link
US (1) US4762475A (fr)
EP (1) EP0199143B1 (fr)
JP (1) JPS61247884A (fr)
DE (2) DE3514719A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505974A1 (fr) * 1991-03-28 1992-09-30 Ing. Erich Pfeiffer GmbH Distributeur de fluides
EP0547439A1 (fr) * 1991-12-16 1993-06-23 SAR S.p.A. Distributeur pour substances liquides crémeuses ou pateuses
US5375745A (en) * 1991-09-05 1994-12-27 Ing. Erich Pfeiffer Gmbh & Co. Kg Media dispenser with initial pressure-relief state
FR2779185A1 (fr) * 1998-06-02 1999-12-03 Teleplastics Ind Pompe pour distributeur de produits fluides et pateux
DE102010048085A1 (de) * 2010-10-04 2012-04-05 Ing. Erich Pfeiffer Gmbh Austragvorrichtung

Families Citing this family (27)

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Publication number Priority date Publication date Assignee Title
US4953758A (en) * 1988-10-24 1990-09-04 Mark-O Industries Valve construction
FR2656901B1 (fr) * 1990-01-08 1993-02-19 Step Soc Tech Pulverisation Perfectionnement d'une pompe-doseuse a precompression pour en ameliorer l'amorcage et garantir sa simplicite d'assemblage.
DE4005529A1 (de) * 1990-02-22 1991-08-29 Pfeiffer Erich Gmbh & Co Kg Austragkopf fuer medien
US5975360A (en) * 1991-05-20 1999-11-02 Ophardt; Heiner Capped piston pump
US5676277A (en) * 1991-05-20 1997-10-14 Ophardt; Heiner Disposable plastic liquid pump
US5282552A (en) * 1991-05-20 1994-02-01 Hygiene-Technik Inc. Disposable plastic liquid pump
US5489044A (en) * 1991-05-20 1996-02-06 Hygiene-Technik Inc. Method of preparing replaceable liquid soap reservoir
US5297701A (en) * 1992-02-24 1994-03-29 Afa Products, Inc. All plastic trigger sprayer
DE19605153A1 (de) * 1996-02-13 1997-08-14 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien und Verfahren zur Herstellung einer Austragvorrichtung o. dgl.
US5850948A (en) * 1996-09-13 1998-12-22 Valois S.A. Finger-operable pump with piston biasing post
JP3731192B2 (ja) * 1997-03-24 2006-01-05 伸晃化学株式会社 液体噴射用のポンプ機構
AU2973099A (en) 1998-02-23 1999-09-06 Robert L. Jackson Oscillating spring valve fluid pumping system
US6142342A (en) * 1999-05-28 2000-11-07 Kimberly-Clark Worldwide, Inc. Counter-mounted viscous liquid dispenser having improved reservoir assembly
PT1508380E (pt) * 2002-05-27 2010-06-07 Pecoso S L Válvula doseadora para substâncias fluidas
ES2235564B1 (es) * 2002-05-27 2007-02-01 Pecoso, S.L. Valvula dosificadora de substancias fluidas.
US7255248B2 (en) * 2002-08-29 2007-08-14 Emsar, Inc. Plug style pump
FR2852934B1 (fr) * 2003-03-27 2005-12-23 Rexam Dispensing Sys Distributeur de produit comprenant une pompe a actionnement par poussoir
FR2854822B1 (fr) * 2003-05-16 2005-06-24 Rexam Dispensing Sys Distributeur de produit liquide ou en gel
GB0603416D0 (en) * 2006-02-20 2006-03-29 Rieke Corp Dispensers e.g. for cosmetics
FR2910449B1 (fr) * 2006-12-22 2009-03-06 Rexam Dispensing Systems Sas Pompe compacte a capacite de rotulage du gicleur par rapport au piston.
US7740154B2 (en) * 2007-01-12 2010-06-22 The Clorox Company Bottle Fitment
WO2011026198A1 (fr) * 2009-09-07 2011-03-10 Mk International Pty Ltd Pompe pour pulvérisation nasale
US8408427B2 (en) * 2009-09-07 2013-04-02 Mk International Pty Ltd Single dose nasal spray pump
ITMI20091648A1 (it) * 2009-09-25 2011-03-26 Modapack S R L "gruppo per la pressurizzazione e l'erogazione di sostanze fluide per una pompa ad azionamento manuale e pompa comprendente detto gruppo"
BR112016015602B1 (pt) * 2014-01-13 2021-01-26 Westrock Mwv, Llc bomba de distribuição com mola em taça
USD717666S1 (en) 2014-03-14 2014-11-18 The Clorox Company Fluid dispenser
WO2017136381A1 (fr) 2016-02-02 2017-08-10 Westrock Dispensing Systems, Inc. Systèmes de distribution et leurs procédés d'utilisation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1544683A (fr) * 1967-01-17 1968-11-08 Erich Pfeiffer K G Ing Pompe à piston coulissant, à simple effet, actionnée à la main, incorporée dans un récipient
GB1266229A (fr) * 1968-04-22 1972-03-08
EP0073918A1 (fr) * 1981-08-29 1983-03-16 Robert Finke Kommanditgesellschaft Pompe pouvant être posée sur un récipient
FR2532010A1 (fr) * 1982-08-23 1984-02-24 Realex Corp Pompe manuelle de distribution pour recipient de produit fluide

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US862867A (en) * 1906-03-28 1907-08-06 Lewis Watson Eggleston Pneumatic pumping apparatus.
US3046894A (en) * 1960-01-27 1962-07-31 Simmonds Aerocessories Inc Metering pump mechanism
US3361078A (en) * 1965-12-15 1968-01-02 Diamond Int Corp Liquid dispenser
DE1966588C3 (de) * 1967-01-17 1981-01-08 Pfeiffer Zerstaeuber-Vertriebsgesellschaft Mbh & Co Kg, 7760 Radolfzell Zerstäuber-Kolbenpumpe
DE1703416C3 (de) * 1967-01-17 1979-04-05 Pfeiffer Zerstaeuber-Vertriebsgesellschaft Mbh & Co Kg, 7760 Radolfzell Zerstäuberkolbenpumpe
FR2250292A6 (fr) * 1973-08-16 1975-05-30 Step
US4260079A (en) * 1978-01-25 1981-04-07 The Afa Corporation Manually operated liquid dispensers
US4087025A (en) * 1976-12-20 1978-05-02 Wolf Steiman Leakproof pump for hand-held dispensers
DE3225692A1 (de) * 1982-07-09 1984-01-12 Pfeiffer Zerstäuber Vertriebsgesellschaft mbH & Co KG, 7760 Radolfzell Dosierpumpe sowie verfahren und vorrichtung zum befuellen eines mit einer dosierpumpe versehenen behaelters
US4624413A (en) * 1985-01-23 1986-11-25 Corsette Douglas Frank Trigger type sprayer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1544683A (fr) * 1967-01-17 1968-11-08 Erich Pfeiffer K G Ing Pompe à piston coulissant, à simple effet, actionnée à la main, incorporée dans un récipient
GB1266229A (fr) * 1968-04-22 1972-03-08
EP0073918A1 (fr) * 1981-08-29 1983-03-16 Robert Finke Kommanditgesellschaft Pompe pouvant être posée sur un récipient
FR2532010A1 (fr) * 1982-08-23 1984-02-24 Realex Corp Pompe manuelle de distribution pour recipient de produit fluide

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505974A1 (fr) * 1991-03-28 1992-09-30 Ing. Erich Pfeiffer GmbH Distributeur de fluides
US5316198A (en) * 1991-03-28 1994-05-31 Ing. Erich Pfeiffer Gmbh & Co. Kg Media dispenser with elastically deformable plunger
US5375745A (en) * 1991-09-05 1994-12-27 Ing. Erich Pfeiffer Gmbh & Co. Kg Media dispenser with initial pressure-relief state
EP0547439A1 (fr) * 1991-12-16 1993-06-23 SAR S.p.A. Distributeur pour substances liquides crémeuses ou pateuses
US5363993A (en) * 1991-12-16 1994-11-15 Sar S.P.A. Plastic dispenser for liquids or other substances
FR2779185A1 (fr) * 1998-06-02 1999-12-03 Teleplastics Ind Pompe pour distributeur de produits fluides et pateux
DE102010048085A1 (de) * 2010-10-04 2012-04-05 Ing. Erich Pfeiffer Gmbh Austragvorrichtung
US9204994B2 (en) 2010-10-04 2015-12-08 Aptar Radolfzell Gmbh Discharge device

Also Published As

Publication number Publication date
DE3663937D1 (en) 1989-07-20
JPS61247884A (ja) 1986-11-05
US4762475A (en) 1988-08-09
EP0199143B1 (fr) 1989-06-14
DE3514719A1 (de) 1986-10-30

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