EP0565977A2 - Pompe doseuse en matière synthétique pour matériaux à faible viscosité, en particulier des matériaux pateux - Google Patents

Pompe doseuse en matière synthétique pour matériaux à faible viscosité, en particulier des matériaux pateux Download PDF

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Publication number
EP0565977A2
EP0565977A2 EP93105558A EP93105558A EP0565977A2 EP 0565977 A2 EP0565977 A2 EP 0565977A2 EP 93105558 A EP93105558 A EP 93105558A EP 93105558 A EP93105558 A EP 93105558A EP 0565977 A2 EP0565977 A2 EP 0565977A2
Authority
EP
European Patent Office
Prior art keywords
housing part
wall
dosing pump
annular
outlet
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
EP93105558A
Other languages
German (de)
English (en)
Other versions
EP0565977A3 (fr
EP0565977B1 (fr
Inventor
Ernst Weag
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.)
Raimund Andris GmbH and Co KG
Original Assignee
Raimund Andris GmbH and Co KG
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 Raimund Andris GmbH and Co KG filed Critical Raimund Andris GmbH and Co KG
Publication of EP0565977A2 publication Critical patent/EP0565977A2/fr
Publication of EP0565977A3 publication Critical patent/EP0565977A3/xx
Application granted granted Critical
Publication of EP0565977B1 publication Critical patent/EP0565977B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • 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
    • B05B11/0054—Cartridges, i.e. containers specially designed for easy attachment to or easy removal from the rest of the sprayer
    • 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
    • B05B11/0038—Inner container disposed in an outer shell or outer casing
    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure 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
    • 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
    • B05B11/1081—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping
    • B05B11/1084—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping each liquid or other fluent material being pumped by a separate pump
    • B05B11/1085—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping each liquid or other fluent material being pumped by a separate pump the pumps being coaxial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/325—Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents

Definitions

  • the invention relates to a dosing pump made of plastic for dispensing dosed quantities of low-viscosity, in particular paste-like media from a bottle, can or tube-like container with a spring-elastic bellows as a pumping element, which connects between a dimensionally stable, upper housing part and a lower, coaxial and telescopically movable, likewise dimensionally stable housing part is arranged and the interior of which forms a pumping chamber through which the medium is pumped, its upper end section sealingly against an annular wall of a radial intermediate wall of the upper housing part provided with at least one paste passage and / or an outlet valve and its lower end section sealingly abuts an annular collar of a radial partition of the lower housing part, and wherein Upper housing part has an outlet opening and the lower housing part is provided with an intake valve connecting the container to the pumping chamber and with an intake pipe socket through which the intake valve can be connected or connected to the container.
  • a metering pump of the generic type is known for example from DE-Gbm 88 00 880.0.
  • the intermediate wall of the upper, telescopic housing part guided in the lower housing part is provided with a pipe socket directed downwards against the partition or the suction valve, which is sealed by a reinforced annular collar of the bellows.
  • this pipe socket is provided with a conical valve seat ring surface on which a closing member rests, which resiliently rests on the end wall of the upper, two-part housing part and is axially movably guided in the pipe socket by means of an axial cross rib.
  • the upper housing part consists of two locking hollow bodies, one of which has a cylindrical guide wall, with which it is guided in an axially movable manner between two end positions in the lower housing part.
  • the second hollow body of the upper housing part which is inserted in a protruding cylindrical wall section above the intermediate wall, has an eccentric, channel-like outlet opening which runs parallel to the axis and which is directly connected to a cavity in which the closing element of the dispensing valve is arranged and which is otherwise connected to the interior of the bellows via this dispensing valve, while the upper housing part as a whole is relative moved down to the lower housing part in the course of a conveying stroke.
  • a paste dispenser is also already known (US Pat. No. 4,438,871) which, however, as the pumping organ does not have a bellows, but rather two manually operable pump pistons, which, in cooperation with suction valves, simultaneously operate two media from two concentrically one inside the other Aspirate separate paste containers, each provided with a trailing piston, and convey them via separate channels into a storage space which is arranged directly in front of an outlet opening.
  • This storage space encloses a plunger-like closing element which is arranged on an elastic membrane wall acted upon by the delivery pressure of the medium.
  • the two pump pistons are arranged coaxially to one another, rigidly connected to one another and provided with a common actuating element which is actuated manually.
  • the pump pistons are provided with different diameters.
  • the likewise coaxial, cylindrical pump chambers, which are connected to the separate paste containers via suction valves, are connected to two separate guide channels via separate outlet valves, which are arranged approximately axially parallel, eccentrically to the pumping chambers and open into the storage space.
  • the invention has for its object to provide a metering pump of the type mentioned while maintaining the manufacturing simplicity, which results in particular from the use of a bellows as a pumping organ, with a second pumping chamber, through which a second medium from a divided medium is simultaneously used with a first medium Container space of the same container or from a second separate container can be transported separately from the first medium to a common or separate discharge opening.
  • a second pump chamber for a second medium is formed by two telescopically guided annular wall nozzles which concentrically enclose the bellows with radial spacing and are each formed on one of the two housing parts, which is formed by a second outlet valve and / or at least one passage opening of the intermediate wall is connected to the outlet opening and is connected on the suction side via at least one eccentric suction channel in the partition of the lower housing part to an annular space of the container surrounding the suction nozzle or to a second container.
  • the bellows is the only pumping element at the same time in two separate pumping chambers effective, through which two media can be pumped separately in different proportions and transported to a common or separate outlet openings. It is possible to influence or change the quantitative ratios of the two media both through the volumes of the pumping chambers and through the cross-sectional relationships between the suction openings on the one hand and the outlet cross sections on the other hand.
  • a further advantage of the metering pumps according to the invention is above all that no additional individual parts are required to form the second pump chamber, rather the means used consist of molded elements which are integrally formed on components which are already present, a further important advantage being that that the assembly is by no means more complex due to the added form elements.
  • the paste dispenser shown in FIGS. 1 and 1a has an integrated metering pump 1 as the head part.
  • This consists essentially of two cylindrical housing parts 2 and 3, a bellows 4, a suction valve 5 and an outlet valve 6. While the two housing parts 2 and 3 consist of hard, dimensionally stable plastic, the bellows 4 consists of a softer, form-elastic plastic which at the same time is able to apply the restoring forces required for the pumping process for the housing part 2 relative to the housing part 3.
  • the metering pump 1 is provided with an easily removable protective cap 7 which can be removed in use.
  • the housing part 2 consists of a cylindrical housing lower part 8 and a form-fitting and non-positively connected housing upper part 9 with an outlet opening 10 which forms the outer end of an outlet channel 11.
  • the upper housing part 9 is provided with an oblique, top ribbed cover wall 12, to which a sealing is formed on an intermediate wall 13 of the lower housing part 8, substantially cylindrical chamber wall 14.
  • This chamber wall 14 encloses an outlet chamber 15 which is connected to the outlet channel 11 and is in turn surrounded by a likewise cylindrical ring channel wall 21 which encloses an annular channel 22 which is connected to the outlet channel 11 via two lateral openings 23 and 24.
  • the ring channel wall 21 is also seated on the intermediate wall 13 in a sealing manner.
  • the outlet channel 11 and the outlet opening 10 have the cross-sectional shape of an elongated hole which is horizontal when the axis of symmetry 1 'is in the vertical position and which is made up of two semicircular arches 10/1, 10/2 and two parallel walls 11/1 connecting them. 11/2 is limited.
  • the inner sides of the semicircular arches 10/1, 10/2 are each provided with axially parallel guide ribs 57 which form strip channels 58 through which the second medium is added to the output strand of the first medium in strips.
  • the lower housing part 8 projects with a lower, cylindrical guide section 16 into a guide cylinder 17 of the housing part 3, so that it can be moved by an axial stroke H between an inner annular rib 18 of the guide cylinder 17 and a radial wall 19 of the housing part 3.
  • upper housing part 9 is provided with differently shaped wall sections above the cylindrical wall section 9 'provided with a circumferential locking rib 27 and an annular collar 29 seated on the upper end face 28 of the outer wall 25 are essentially aligned with the outlet opening 10 or the outlet channel 11, which extends at an angle of approximately 45 ° to the central axis 1 '.
  • the outer wall 25 of the lower housing part 8 is provided with an inner, circumferential locking groove 26 which serves for the locking reception of the locking rib 27 of the upper housing part 9.
  • a cylindrical annular wall socket 30 is formed in one piece and concentrically to the bellows 4, which sealingly and telescopically accommodates a likewise cylindrical, upwardly directed annular wall socket 31, which in turn is integrally formed on the radial wall 19 of the lower housing part 3.
  • the inner diameters of these two ring wall connections 30 and 31 are selected such that they have a certain radial distance from the circumference of the bellows 4 and thus form a second, annular pump chamber 33 together with the bellows 4.
  • the first pump chamber 32 is formed in a known manner from the cavity of the bellows 4.
  • the second pump chamber 33 is connected to the annular channel 22 through a plurality of axially parallel passage openings 34 in the intermediate wall 13.
  • the outlet valve 6 has a closing cone formed as a hollow body, which is guided by means of an axial cross rib 40 in the cylindrical pipe socket 35 and which is provided at its upper end with an axially elastic annular collar 41, which on the plane lower edges 42 of several radial Ribs 43 of the upper housing upper part 9 resiliently and which presses the lower boundary edge 44 of the closing member 39 sealingly against the valve seat ring surface 20.
  • This collar 41 points in the Drawing not visible openings through which the medium can flow axially.
  • the lower end of the bellows 4 has an annular wall 45 which sealingly surrounds a cylindrical wall 46 of a concentric, pot-like receptacle 47 projecting in the dispensing direction.
  • this receptacle 47 has an annular end wall 48, on which a downwardly directed connecting piece 49 is integrally formed.
  • This connecting piece 49 has a cylindrical inner surface 50 and an outer jacket surface 51 which tapers conically downwards.
  • this connecting piece 49 there is an axially movable closing element 52 of the suction valve 5, which bears with a conical closure plate 53 on a likewise conical valve seat surface 54.
  • the closing member 52 is provided on the underside of the closure plate 53 with a cross rib 55, through which it is guided on the cylindrical inner surface 50 of the connecting piece 49.
  • a total of three retaining fingers 56 are arranged on the top of the annular end wall 48 of the receiving socket 47, which prevent the closing member 52 from falling out.
  • a preferably cylindrical or in cross-section is in one piece on the housing part 3 formed on the elliptical envelope body 60, which serves to completely accommodate a paste container 61 provided with a suitable cross-sectional shape and which has a thickened, circumferential edge bead 62 at its lower end.
  • the relatively thin-walled paste container 61 is provided with a trailing piston 64 inserted into its open lower end 63 and has at its lower end 63 an annular collar 68 forming an annular groove 67 with the somewhat conically widening end section 65 of its envelope wall 66, the one with internally directed upper edge 69 is provided.
  • the thickened edge bead 67 of the enveloping body 60 can be inserted into this annular groove 67 in a latching manner when the paste container 61 is inserted into the enveloping body 60 from below.
  • the bead 62 and the annular collar 68 each give the lower ends of the enveloping body and the paste container 61 increased dimensional stability, which makes handling easier insofar as when inserting and removing the paste container 61 into or from the enveloping body 60 to avoid undesired deformations need not be given special attention.
  • the paste container 61 (FIG. 3) has a collar 72 protruding against the suction valve 5 of the metering pump 1 on an end wall 71.
  • This Collar 72 is provided with an inwardly directed sealing ring 74 which is integrally formed on an end wall ring 73 and to which a cup-shaped separating closure 76 is integrally molded by means of a thin annular separating web 75 (FIG. 3).
  • This opener plunger 78 is provided with a plurality of pressure fingers 79 which, when the collar 72 of the paste container 61 is inserted into the receptacle 47 of the housing part 3, separate the separating closure 76 from the sealing ring 74 and, as shown in FIGS. 1 and 1a, into the interior of the paste container 61 slide.
  • a cylindrical suction nozzle 80 is formed on the end wall 71 of the paste container 61.
  • the annular chamber 81 surrounding this suction port 80 is provided for receiving a second medium which is to be pumped through the second pump chamber 32, the passage openings 34 and the annular channel 22 into the discharge channel 11.
  • the radial wall 19 of the housing part 3 is provided with one or more, preferably three, suction channels 82, which are arranged in the radial region lying between the wall 46 and the annular wall socket 31 and open into the second pump chamber 32.
  • these suction channels 82 are extended by sleeve-like projections 83, which at the same time serve to pierce partition closures 84 of the end wall 71, which are arranged eccentrically outside the suction nozzle 80, and to establish the connection to the annular chamber 81 of the paste container.
  • the lower end edges of the lugs 83 are sharp-edged and, so that the separating fasteners 84 are also folded to the side when they are separated, the lower end edges of the lugs 83 are designed to run obliquely.
  • the opening plunger 78 is connected to the connecting piece 49 by means of axial webs 77, the paste located in the paste container 61 can flow into the connecting piece 49 almost unhindered or through it are sucked through into the interior of the bellows 4 while the housing part 2 moves upwards again after a downward lifting movement. At the same time, a significantly smaller amount of the second medium is drawn from the annular chamber 81 into the second pump chamber 33, which is smaller in volume.
  • an elastic, annular valve lip 85 is formed on the circumference of the lower, cylindrical end section 35 of the bellows 4 for valve-like closing of the suction channels 82 or for forming a second suction valve 5 ′ for the second pumping chamber 33, which prevents the medium from flowing back out of the second pumping chamber 33 prevented in the suction channels 82, but which allows the second medium to flow into the second pumping chamber 33 during the suction process.
  • valve lip 85 there is also the possibility of dispensing with the valve lip 85.
  • the passage openings 34 of the intermediate wall 13 are covered on the upper side by an elastic annular lip 34/1 in the manner of a one-way valve; the annular lip 34/1 thus forms a second outlet valve 6 '.
  • This annular lip 34/1 is underlaid on the end face of the annular channel wall 21 and centered thereon by means of an inner centering projection 34 '.
  • the radial wall 91 of the trailing piston 64 is provided in the center with an annular recess 92, into which the suction port 80 and the Can open plunger 78 and, if necessary, the detachable closure 76.
  • FIGS. 8 to 11 Another paste dispenser is shown in FIGS. 8 to 11, with an enveloping body 60/1 formed on an elongated-round partition 100 of a lower housing part 3/1, which at the same time has two cylindrical, cartridge-like paste containers 61/1 provided with trailing pistons 101 and 61/2 directly next to each other in parallel position.
  • the enveloping body 60/1 has two semicircular wall sections 107, 108 which are arranged symmetrically with respect to an axis of symmetry 106 and which are connected to one another by parallel straight wall sections 109, 110. Both paste containers 61/1, 61/2 can, but do not have to have the same shape.
  • Your upper end walls 102, 103 are each provided near the edge, that is, with eccentrically arranged, cylindrical connection openings 104, 105, which in the original state, for. B. are closed by break-out or in the container interior pushable closure lid.
  • the lower housing part 3/1 of a metering pump 1/1 is integrally formed offset with respect to the symmetry axis 106, which is basically constructed in the same way as the metering pump 1 of the exemplary embodiment described above. The differences between these two metering pumps 1 and 1/1 will now be discussed in more detail here.
  • the upper housing part 2/1 differs from the housing part 2 only in that the ring wall socket 30/1 forming the upper radial boundary of the second pumping chamber 33/1 has a larger diameter, so that the second pumping chamber 33/1 receives the same pump volume as that first pump chamber 32. Accordingly, the lower ring wall socket 31/1, which projects telescopically and sealingly into the upper ring wall socket 30/1 and which is formed on the upper side of the partition wall 100, is provided with a larger diameter.
  • the upper cylindrical end section 38/1 of the bellows 4/1 encloses an annular wall 36/1 concentrically surrounding the pipe socket 35 at a radial distance.
  • the lower cylindrical end section 45/1 of the bellows 4/1 sits sealingly in an upwardly directed annular collar 47/1, which is connected to the annular wall socket 31/1 of the partition 100 forms an open top ring channel 113.
  • Within the collar 47/1 there is concentrically an open top surface with an outer jacket surface serving as a valve seat surface and directed upwards, on which a spring and sealing piece integrally connected via axial connecting webs to the lower end section 45/1 of the bellows 4 / 1 molded, cap-like valve closing member 115 which, together with the annular shoulder 114, forms the first suction valve 116 of the metering pump 1/1 lying within the bellows.
  • the cylindrical cavity 117 of the ring extension 114 is in communication with the likewise cylindrical outlet channel 118/1 of a first eccentric suction nozzle 118, which projects into a connection opening 105 of the right paste container 61/2 and which, when this paste container 61/2 is inserted into the enveloping body 60 / 1 the existing cover of the connection opening 105 has been removed.
  • the ring channel 113 is connected to a second suction channel 117/1 of a second suction nozzle 119, which is arranged symmetrically with respect to the plane of symmetry 106 with respect to the suction nozzle 118 and which projects into the connection opening 104 of the other paste container 61/1.
  • the second suction valve 120 assigned to the second pump chamber 33/1 is an elastic ring lip which is formed on the circumference of the lower end section 35/1 of the bellows 4/1 and which covers the ring channel 113 in a tight fit all around on the inside of the ring wall socket 31/1 and blocks in the flow direction.
  • the outlet channel 111/1 or the outlet opening 110/1 is provided with a vertical dividing wall 121 which runs parallel to the axis of symmetry 106 and which forms the Outlet channel 111/1 and the outlet opening 110/1 divided into two compartments 111/2 and 111/3 which are of equal cross section.
  • a vertical dividing wall 121 which runs parallel to the axis of symmetry 106 and which forms the Outlet channel 111/1 and the outlet opening 110/1 divided into two compartments 111/2 and 111/3 which are of equal cross section.
  • the partition wall 121 is also the possibility of allowing the partition wall 121 to end within the outlet opening 110/1, so that only the outlet duct 111/1 is divided and / or to be arranged in such a way that compartments 111/2 and 111/3 with different cross sections result .
  • the annular chamber 81 and the remaining cavity of the paste container 41 become or the two media contained therein are sucked out of the two paste containers 61/1 and 61/2 into the pumping chambers 32, 33 and 33/1, as were previously output during the working stroke.
  • the pumping quantities of the two pumping chambers 32, 33 and 32, 33/1 are matched to the quantity ratios to which the two media are available.
  • the quantity ratio of medium to medium is approximately 1:10; the pumped quantity ratio of the two pumping chambers 32 and 33 is also corresponding.
  • the quantity ratio of medium A: medium B 1: 1, so that the pumping volumes of the two pumping chambers 32 and 33 / 1 are the same size.
  • metering pumps 1 and 1/1 according to the invention is, above all, that no additional individual parts are required to form the second pumping chamber are, rather, the means used consist of molded elements which are integrally formed on existing components, with another important advantage to be seen in the fact that the assembly by the added elements is by no means more complex.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP93105558A 1992-04-14 1993-04-03 Pompe doseuse en matière synthétique pour matériaux à faible viscosité, en particulier des matériaux pateux Expired - Lifetime EP0565977B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4212413 1992-04-14
DE4212413A DE4212413C2 (de) 1992-04-14 1992-04-14 Dosierpumpe aus Kunststoff für hochviskose, insbesondere pastenartige Medien

Publications (3)

Publication Number Publication Date
EP0565977A2 true EP0565977A2 (fr) 1993-10-20
EP0565977A3 EP0565977A3 (fr) 1994-03-02
EP0565977B1 EP0565977B1 (fr) 1996-06-05

Family

ID=6456757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93105558A Expired - Lifetime EP0565977B1 (fr) 1992-04-14 1993-04-03 Pompe doseuse en matière synthétique pour matériaux à faible viscosité, en particulier des matériaux pateux

Country Status (6)

Country Link
US (1) US5351862A (fr)
EP (1) EP0565977B1 (fr)
JP (1) JP3373248B2 (fr)
KR (1) KR930021941A (fr)
DE (1) DE4212413C2 (fr)
TW (1) TW222608B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996030126A1 (fr) * 1995-03-27 1996-10-03 Josef Wischerath Gmbh & Co. Kg Distributeur
EP0751077A1 (fr) * 1995-06-28 1997-01-02 GUALA S.p.A. Distributeur réalisant la distribution simultanée d'au moins deux produits pâteux
WO1997027121A1 (fr) * 1996-01-22 1997-07-31 Unilever Plc Distributeur a plusieurs compartiments
CN103693281A (zh) * 2013-12-13 2014-04-02 中山市美捷时包装制品有限公司 一种乳液真空泵装置

Families Citing this family (51)

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Publication number Priority date Publication date Assignee Title
US5439178A (en) * 1993-06-24 1995-08-08 The Procter & Gamble Company Pump device including multiple function collapsible pump chamber
US5462208A (en) * 1994-08-01 1995-10-31 The Procter & Gamble Company Two-phase dispensing systems utilizing bellows pumps
FR2725247B1 (fr) * 1994-10-03 1996-12-20 Py Daniel C Pompe a fluide sans volume mort
DE29506682U1 (de) * 1995-04-19 1995-06-29 Megaplast Dosiersysteme GmbH, 78052 Villingen-Schwenningen Abgabepumpe aus Kunststoff für pastenartige Stoffe
US5699934A (en) * 1996-01-29 1997-12-23 Universal Instruments Corporation Dispenser and method for dispensing viscous fluids
NL1005189C2 (nl) 1997-02-05 1998-08-06 Airspray Int Bv Afgeefsamenstel voor het afgeven van twee vloeibare componenten.
DE29720316U1 (de) * 1997-11-17 1998-01-29 Raimund Andris Gmbh & Co Kg, 78052 Villingen-Schwenningen Zweikammer-Dosierspender
DE19938798A1 (de) * 1999-08-16 2001-03-01 Pfeiffer Erich Gmbh & Co Kg Spender für Flüssigkeiten oder für zähflüssige oder versprühbare Produkte
US6302101B1 (en) 1999-12-14 2001-10-16 Daniel Py System and method for application of medicament into the nasal passage
FR2813863B1 (fr) * 2000-09-08 2003-03-21 Rexam Sofab Distributeur de produit liquide
US6315171B1 (en) 2000-09-29 2001-11-13 The Plastek Group Telescoping ram dispenser
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DE4212413C2 (de) 1996-09-12
KR930021941A (ko) 1993-11-23
DE4212413A1 (de) 1993-10-21
EP0565977A3 (fr) 1994-03-02
US5351862A (en) 1994-10-04
JP3373248B2 (ja) 2003-02-04
TW222608B (fr) 1994-04-21
EP0565977B1 (fr) 1996-06-05
JPH0642449A (ja) 1994-02-15

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