EP0901836B1 - Spender für Medien - Google Patents

Spender für Medien Download PDF

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Publication number
EP0901836B1
EP0901836B1 EP98116522A EP98116522A EP0901836B1 EP 0901836 B1 EP0901836 B1 EP 0901836B1 EP 98116522 A EP98116522 A EP 98116522A EP 98116522 A EP98116522 A EP 98116522A EP 0901836 B1 EP0901836 B1 EP 0901836B1
Authority
EP
European Patent Office
Prior art keywords
dispenser according
valve
dispenser
flow direction
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.)
Expired - Lifetime
Application number
EP98116522A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0901836A2 (de
EP0901836A3 (de
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 EP0901836A2 publication Critical patent/EP0901836A2/de
Publication of EP0901836A3 publication Critical patent/EP0901836A3/de
Application granted granted Critical
Publication of EP0901836B1 publication Critical patent/EP0901836B1/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
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B05B11/0067—Lift valves having a valve seat located downstream the valve element
    • 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
    • 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
    • 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
    • B05B11/00444—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 with provision for filtering or cleaning the air flow drawn into 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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • 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
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • 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
    • 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
    • B05B11/1061—Pump priming means
    • 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
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1097—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 with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke
    • 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
    • B05B11/01—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

Definitions

  • the invention relates to a dispenser according to the preamble of Claim 1.
  • flowable or other media for example, liquid, pasty, powdery or gaseous Media, stored, promoted or at a media outlet away from the donor.
  • the donor can be carried freely by the user with a single hand and with this hand at the same time, one-handed, with one power be actuated, which promotes the medium.
  • the dispenser can be used to refill his pressure chamber the medium, for example, from a media storage formed and suck in the medium during the return stroke.
  • the Donor can also be used in the manner of a disposable donor Actuation only via a single, rectified pumping stroke be determined. Then that's all the stored media volume Contained from the outset in his pressure chamber. This medium can then be spread over a single stroke or over abutting stop limited Operahübe from the Pressure chamber metered be discharged.
  • This is useful Pressure chamber housing provided on the unit, which with the media outlet is movable or displaceable.
  • EP-A2-0 815 946 describes a dispenser of the beginning With him, this is directly at the outlet seated outlet valve operated purely pressure-dependent. Around a well-dosed and possibly also atomized output of the medium To achieve such a valve, only after removal of a relatively large internal pressure to be opened. That makes but problems if the pump chamber is not yet liquid, but filled with air, which is normally when first commissioning or after longer periods of operation the case is. In the case of EP-A2-0 815 946, this is initiated (Priming) thereby causes the exhaust valve adjusted so that it opens even when the pump chamber only filled with air.
  • the invention has for its object to a dispenser create in which disadvantages of known training avoided are and in particular at exact dosage one ensures high tightness and functional safety.
  • the driver creates a mechanical positive control as an actuating means for as a flow or pressure equalization valve trained exhaust valve.
  • the freely protruding driver which via a purely force-dependent on and disengaging snap-in coupling is connected to the valve body and this form-fitting in the desired valve position, for example, the open position, transferred. Then the coupling connection separated by force again and the valve body in its other Valve position returned under spring force. This way you can e.g. via the media outlet and the outlet air from the Pressure chamber during only a first part of the return stroke of the Donors emanate.
  • a venting of the media rooms, in particular the pressure chamber, the media outlet and everything in between contiguous media spaces is provided so that these media spaces at the first startup of the dispenser be primed quickly with medium.
  • valve actuation suitable which the exhaust valve via a first part of the remindhu-bes keeps open, so that the compressed Air can escape easily, without a valve spring, too still have to keep the exhaust valve open.
  • the ventilation of the Media reservoir for pressure equalization for each removed Media amount can also be achieved via another valve, which is opened or closed by manual operation. For example, it can be closed in the initial position of the donor and be open in all other lifting positions. The the valve permeating ventilation path can then be completely separate from be provided for the media rooms.
  • the discharge volume per stop-limited working stroke or Stroke can be precisely determined and possibly also changed; Furthermore, the dispenser can be easily attached to the carrier, for example, a bottle, and can attach to different Bottle shapes are adapted; furthermore can after the media discharge media remains from the Media outlet back into the dispenser behind the valve seat of a Exhaust valves sucked back or the pressure chamber to be vented; Finally, foreign bodies, such as germs, can penetrate or dirt, easily avoided in the dispenser become.
  • means may be provided to be in overhead position into the donor medium or with the donor medium unsubscribe. In the overhead position the media outlet is after directed down and he is below the pressure chamber or the Memory. Furthermore, means are provided so that the medium the atomizer in exactly pre-dosed amount as atomized Drops out and this drop then as a whole from the media outlet replaces, namely tearing from the boundary edge.
  • Individual dispenser parts or ready-assembled dispensers are designed to that they can be sterilized, if necessary cold, for example by applying gamma rays.
  • the flow valve may be provided separately from the stop means or connected to them, e.g. by sealed Guiding a movable valve body on one of the stop members.
  • This stop member can be shared with the valve body as a preassembled unit in the second body or the Discharge head used or formed integrally with this body become.
  • the described dispenser has a fastening body, such as a ring-shaped flange for a Krimpring or a Cap for his connection with a storage bottle.
  • a fastening body such as a ring-shaped flange for a Krimpring or a Cap for his connection with a storage bottle.
  • a free in the memory protruding riser or suction tube a seal, a fastening member for positive engagement in the memory and / or a pressure chamber limiting body as connecting members before, of which at least two to all connecting members a preassembled or one-piece mounting unit for attachment to the memory or form on the first body.
  • pressure chamber limiters are e.g. a cylinder jacket and a Pistons provided, each of which to the aforementioned assembly unit can belong.
  • This limiter can also be used in other media rooms limit and possibly the driver or a coupling member form the valve actuation.
  • riser is not provided, so that in the overhead position the medium flow through gradient directly into the pressure chamber can, regardless of the degree of filling of the memory.
  • Such as sliding surfaces, so sealed to the first memory unit that is outside the pressure chamber lying interior spaces of the donor to the outside are sealed, especially in the area of several, separate Ring zones formed by nested, shell-shaped Projections are formed and radially spaced into each other. This results in separate, nested and against each other in the starting position and / or over the stroke sealed annuli.
  • An outermost coat can therefore with a window-like opening for guiding a cam o. Be provided with no dirt over the next, in this outermost coat lying projection inward can.
  • the dispenser 1 has two linearly and axially mutually movable Dispenser units 2, 3, each with a one-piece Base body 4, 5 and is for attachment to a Carrier or media storage 6 determines the then a component the first unit 2 or the first basic body 4 forms and be formed integrally with the latter can.
  • the second main body 5 of the second unit 3 comprises a Discharge head 7, which although also in one piece with the Base body 5 may be formed, but here is a separate, elongated cap-shaped component is.
  • a media pump 8 Completely encapsulated within the bodies 4, 5 is a media pump 8, namely a thrust piston pump, provided with which the Medium from the memory 6 in their return stroke abruptly sucked and then discharged during the working stroke.
  • Fig. 1 shows the discharge device in the initial or rest position, from which the units 2, 3 against each other manually over the working stroke up to the stroke end position against Spring force to be moved so that the dispenser 1 shortened becomes.
  • the parts mentioned are located in a central donor axis 9. If necessary except for springs, such as return springs exist all components of the dispenser 1 made of plastic, where they as Injection molded parts can be produced.
  • Stop and valve means 10 serve to reduce the amount of through the respective working stroke discharged medium exactly set.
  • the end of the working stroke is stop-limited and by changing the length of the stroke could the discharged media amount to be changed.
  • the respectively subsequent work stroke can be rectified to the end connect the previous working stroke, if no return stroke or no return spring is provided or at the end of each Working stroke, the dispenser 1 in his also limited stop Initial position returned and then only be operated again over the subsequent working stroke.
  • the means 10 are completely in the unit 3 or in Base 5, so that the unit 2 simply replaced can be.
  • a media outlet 15 From memory 6 to a media outlet 15 are juxtaposed Media channels or media rooms, which the Units 2, 3 penetrate symmetrically to the axis 9 inside.
  • an inlet channel 11a shown in FIG. 3 project freely against the flow direction in the memory 6 and with an annular channel portion in an annular Pressure and pump chamber 12 of the metering pump 8 open.
  • Fig. 1 limits for the overhead operation of the storage neck the Inlet channel 11, from which the medium through the neck opening flowing directly into the body 4, 5.
  • the chamber 12 includes an axial section with larger passage cross-sections and in the flow direction immediately followed by a Axial section 13 with smaller passage cross-sections than Connecting channel.
  • outlet channel 14 connects.
  • This outlet channel 14 is only through a nozzle channel of a drop or a spray nozzle formed, which with its downstream End forms the media outlet 15, is one-piece limited and only one end or end wall of the head 7 passes through.
  • Of the Outlet 14 is characterized extremely short. He has a length, at most two or three times larger than its largest Width is.
  • the pump 8 has a cylinder 16 and a piston unit 17 with a piston 18 which can be displaced sealed in the cylinder 16 on.
  • the cylinder 16 is fixed or integral with the Base body 5 is connected and protrudes counter to flow direction free into the body 4 in out.
  • the piston 17 can be fixed or be integrally connected to the body 4 so that the piston unit 17 in the flow direction as well as in the body. 5 protrudes into it.
  • the unit 17 may be upstream of Piston 18 in the range of only a single face on Body 4 attached and be supported axially.
  • the unit 17 can also be formed by a separate component, the in or against the direction of flow in the body 4 stuck is used.
  • the said channel closure is dependent on a pressure opening and closing outlet valve 19 is formed up to whose valve seat, the pressure chamber 12 can reach without valves.
  • the valve seat is through the inner surface of said Formed end wall of the head 7 and is located at the inner end of the nozzle or Outlet channel 14.
  • the pressure-dependent Actuator means 20 are provided, around the valve 19 at the beginning of the return stroke forcibly or form-fitting to open and during the rest Part of the return stroke by spring force to close again. During this valve opening can through the channel 14, 15 air from the rooms 12, 13 flow out into the open while the Piston 18, the chamber 12 still tightly closes.
  • valve opening serves to suck back of medium from the channel 14, 15 into the dispenser, thereby Media remains and possibly a small amount of air behind the Closure 19 are brought into the chamber 12 and the channel 14, 15 is completely emptied.
  • the body 4 forms a mounting flange or a cap 21 with an end wall 22 and a jacket 23, in which the narrowed neck of the memory 6 axially tight and braced intervenes. From the inside of the end wall 22 can counter Flow direction a riser 24 of FIG. 3 in the Memory 6 project freely, which is the upstream End portion of the channel 11 a from its inlet opening to the Wall 22 bounded in one piece.
  • the line 24 may be integral with formed the body 4 or be a separate component, which inserted in the flow direction in the cap 21 linear and is supported directly on the end wall 22, over which he does not project in the direction of flow.
  • a ring-disk-shaped Seal 25 which between the end wall 22 and the End face of the storage neck axially braced and possibly in one piece is formed with the tube 24. 1 is for the Overhead operation no pipe 24 provided so that the liquid in Studentskopflage outside of the memory 6 directly to the inside of the wall 22 is present.
  • a radially inward protruding attachment member 26 is provided, for example a screw thread, an annular snap cam o. that for mutual clamping of the body 4, 6 in a Counterpart on the outer circumference of the storage neck form fit engages and spaced from both ends of the shell 23rd can lie.
  • the member 26 is here in one piece with the body. 4 formed, but also in accordance with FIG. 3 in one piece with the Tube 24 and the seal 25 may be formed.
  • the outer circumference of the part 24, 25a then goes in the opposite direction of flow directed jacket 23, which on the inner circumference of the jacket 23 of the cap 21 (FIG. 1) abuts and with this axially fixed by a resilient snap connection 26a connected is.
  • the snap cam of this connection 26a can projecting radially inward on the jacket 23a and / or on the Outer circumference of the inner shell 23 may be provided and engages each in a snap recess of the opposite Peripheral surface a form fit.
  • the inner shell 23 can the dispenser 1 and the cap 21 on a storage neck o.
  • the Wall 22 may be formed as an annular flange without a jacket 23 or be attached to the memory neck with a Krimpring.
  • the snap member on the jacket 23 and the thread 26th be provided on the jacket 23a.
  • the body 27 is opposite to the flow direction tapered conically at an acute angle and the jacket of the tube 24 can in this area in the flow direction with the same Cone angle can be extended, being between the farthest end and the body 25, a passage is formed, which the Seal 25 interspersed.
  • the parts 24, 25a, 23, 26, 61 form a preassembled unit 30, which on the body 4 to fasten and secure axially with the snap connection 26a is.
  • this unit 30 can also, possibly in one piece, the Unit 17 belong, which results in a very simple education results.
  • the extension 27 limited to the cylindrical inner circumference 11 of the storage neck in the flow direction an initially narrowing channel section and then, as far as the wall 22, a much shorter, further becoming channel section. From donor 1 sticks out only the Extension 27 in the memory 6th
  • the body 5 also forms a cap 28 for receiving the downstream end of the body 4.
  • This cap 28 has an end wall 29 and of this only opposite flow direction freely protruding a shell 31, in which the body 4 permanently engages closely enclosed.
  • the End wall 22 are only three protrusions in the flow direction or shells 32, 33, 34, the radial distances from each other have and coaxial with each other.
  • the sleeve-shaped Coats 32 to 34 are formed integrally with the body 4. From the inner circumference of the shell 32 to the cylindrical outer periphery the piston 18 is the wall 22 of inlet ports 45th interspersed, which directly to the channel 11 or 11a are connected.
  • the innermost shell is through the cylinder 16 and the outermost coat formed by the cap jacket 31. Between These coats 16, 31 of the jacket 35 is provided. All Coats 16, 31, 35 are formed integrally with the body 5. Of the coats 32 to 34 is the middle shell 33rd furthest and the outermost coat 34 least far axially forward. Of the coats 16, 31, 35 stands in opposite Direction of the middle coat 33 farthest and the outermost shell 34 least far axially before.
  • the jacket 34 may have the same outer and inner width as the jacket 23.
  • the jacket 39 of the head 7 can with one of the coats 16, 31, 35 are aligned.
  • a pressure handle 36 To the jacket 39 forms the outside the wall 29 a pressure handle 36. It can be radially to projecting outside over the jacket 31 or only up to the jacket 31 or 39 are enough. Further, it may be the members 20, 41 to 44, 46, 49, 52, 53 and 58 respectively.
  • the upstream end of the head 7 forms the am Inner and outer circumference cylindrical, sleeve-shaped shell 39, which engages permanently in the wall 29 and stuck or in one piece with the end wall of the Head 7 is formed.
  • the bodies 4, 5, 7 reach over Guide or sealant 40 so movable permanently into each other in that except via the channel 11 or the opening 15th no air can penetrate into the media spaces 12, 13, however a the media spaces 11 to 15 completely bypassing by-pass is created, through which through the body 4, 5 of outside atmospheric air into the volume constant memory 6 can flow.
  • the body 5, 7 are axially and with a snap connection 41 radially braced fastened together, whose over the circumference distributed snap members in one piece with the end of the shell 39 are formed and their counterparts as a separate Snap openings the wall 29 enforce.
  • the head 7 can by resilient constriction of the shell 39 non-destructive the snap connection 41 are released and removed.
  • Of the Head 7 is for lying in the axis 9 exit or Nozzle opening 15 conically tapered at an acute angle and suitable, introduced into a body or nostril or for delivery a medical treatment medium in the opened eye to be used, in which case the dispenser 1 in the overhead position is created.
  • the stop means 10 have two parallel to the axis. 9 infinitely adjustable interlocking against each other Stop members 42, 43, which are about the axis 9 against each other can be rotated or rotationally fixed. That opposite the Piston running of the cylinder 16 narrowed stop member 42 is formed by the unit 17 and therefore axially fixed with connected to the body 4.
  • the stop member 43 is through a formed by the head 7 and coat 39 separate body, however axially and about the axis 9 fixed to the jacket 39th connected, with which it could also be integrally formed.
  • the member 43 forms a ring-shaped radially inward projecting wall through which the channel 13 narrows again goes through and then into an extended calming chamber empties.
  • the unit 2, 4 forms near the downstream end the unit 17, 42 an annular stroke stop 47, the am Body 5, 7 and 43 an annular counter-stop 48 so is assigned that by abutment of the shoulder surfaces 47, 48th together the maximum stroke or the stroke length of the working stroke is fixed.
  • the surfaces 47, 48 are in the axis 9 or only within the body 5, 7 and permanently in the Area or upstream of the wall 29.
  • the surfaces 47, 48 lie in the pressure chamber 12, namely immediately downstream to the channel 13 then and their mutual Resting distance can be axially adjustable with adjusting means. at A disposable dispenser could be such a means of adjustment instead of a Fine thread have a coarse thread or a stepped shoulder, to the total stroke in single, stop-limited Divide stroke sections.
  • the stop member 43 goes on the outer circumference in an extended Ring collar 44 over, which is stuck in the inner circumference of the Mantels 39 and the wall 29 engages and integrally with the Wall 29 is formed. From the upstream end of the sleeve-shaped stop member 43 may be a projection or a sleeve, if necessary, through the wall 29 in the jacket 16 against free protrude the piston 18, whose end surface of the end face of the Piston 18 permanently directly opposite, but also at the stroke end does not hit the piston.
  • the up to the stop 48 stepped narrowed inner peripheral surface of the sleeve 16th limits the channel 13.
  • a projection or a sleeve 46 without contact in the tapered portion of the Mantels 39 before, which like the sleeve 16 against her Outside is longer.
  • the sections 16, 43, 44, 46 are axially fixed together or one piece educated.
  • On the outer circumference of the sleeve 46 axial ribs or the like. Be provided for centering the sleeve 46 evenly distributed on the inner circumference of the shell 39 and strained abut.
  • the driver 49 is completely in the starting position within the sleeve 16 and that in the starting position the units 2, 3 as the core body within the extended Section of the chamber 12, which he in the center only upstream bounded by the member 49 annular.
  • the driver 49 has a barb-like snap member 51 of a driver or snap-on coupling 50, whose second clutch or Snap member 52 on the axially reciprocally displaceable Valve body 53 of the valve 19 is provided.
  • the valve body 53 has two axially spaced from each other lying sealing or piston lips 54, 55, the opposite directed freely projecting and are annular.
  • the upstream and directed lip 54 bounds the called calming chamber and slides permanently sealed on the inner circumference of the sleeve 46.
  • the downstream and directed lip 55 slides permanently sealed on the inner circumference of the coat 39 and limited another, extended Settling chamber.
  • the end wall of the lip 55 may be a Form stop, which at the valve opening at the end face the sleeve 46 abuts and thereby the maximum Opening path of the valve 19 determines.
  • the upstream end of the body 53 includes a sleeve-shaped mandrel 56, which upstream of the lips 54, 55 against the direction of flow freely against the member 43rd and projecting the driver 49 and this permanently directly with the snap member 52 opposite.
  • This member 52 stands as an annular cam radially inwardly over the Inner circumference of the mandrel 56 before and is resilient with this spreadable.
  • the member 52 is immediately adjacent to End wall 43, between the bodies 16, 46 and 47, 52nd is located and facing away from the member 52, upstream lying end face within the collar 44 the stop 48th forms.
  • the wall 43 is of a narrowed passage opening interspersed, which again from the member 49, 51 in the passage is narrowed.
  • the driver 51 leads a short free travel relative to the member 52, after which it was only on Member 52 abuts, the body 53 against flow direction entrains and thereby opens the valve 19 until it stops. Afterwards and after the smaller part of the return stroke The member 51 is characterized by the axial restoring forces the member 52 torn out by this resiliently widens. The valve body 53 is released by the member 51 with a spring 58 is moved back in the flow direction, whereby the Valve 19 closes.
  • the restoring forces for the units 2, 3 are replaced by a Spring 59, as a screw or compression spring causes which completely outside of the media rooms 11 to 15 lies and between the shells 33, 34 and 31, 35 engages, so that their ends on the walls 22, 29 are directly supported.
  • the spring 59 could also be integral with at least one of Links 16, 17, 32, 58 may be formed.
  • the screw or Compression spring 58 surrounds here the axially slotted mandrel 56 and the member 52, so that they are at the inner end wall 43 with one end and within the lip 54 with the other end permanently biased supports.
  • the spring 58 protects the Links 52, 56 before too large widening and can also be one-piece with the members 38, 53, 54, 55, 56, 57 made of plastic o. Like. Be formed. This allows the donor to only four Components 4, 5, 7, 53 exist.
  • the body 53 Downstream of the lip 55, the body 53 faces one the lip 55 slimmer mandrel 38, which in the flow direction protrudes freely within the shell 39 and at the end merges into a more slender mandrel or end portion 57, which forms the movable closing surface of the valve 19.
  • This annular closing surface is sharp as an edge from the cylindrical peripheral surface and the flat end surface flanked by the thorn 57.
  • the movable closing surface lies in Closed position only linear on the valve seat, passing through the inner surface of the end wall of the head 7 is formed.
  • the sections 54 to 57 are axially fixed together connected and can be integral with the valve body 53rd be educated.
  • the flow path of the medium passes through the Valve body 53 into the interior of the lip 55 axially and then exits radially into the interior of the lip 55, from where he further along the outer periphery of the mandrel 38 to the valve seat leads.
  • This section of the flow path is from the outer periphery the mandrel 38 and bounded by the inner periphery of the shell 39.
  • Immediately upstream of the valve seat then may be a Strömungsruh Trents- or a swirl or Whirling device with a calming or a swirl chamber be provided.
  • This device is radially after directed inside the central chamber opening guide channels on, which like the chamber of the annular end face the mandrel 38, the circumference of the mandrel 57, the jacket 39 and the inside of the end wall of the head 7 are limited.
  • the swirl device can be a fine atomization of the medium can be achieved at the exit from the opening 15.
  • the Calming chamber provided, which is opposite to the upstream and downstream channel sections has much larger passage cross sections. To enlarge the chamber only has the mandrel 57 extended or the mandrel 38 shortened. After removing the head 7 in the flow direction the bodies 46, 53 are freely accessible.
  • securing means 60 are provided, their securing members on the coats 23, 34 and 31 directly are arranged. This leaves the rotational position of the Unit 3 is always equal to the memory 6, and it is solely by this fuse 60 positively prevents the unit 3 withdrawn in the flow direction of the unit 2 can be. Against appropriate removal of the head 7 of the units 2, 3 alone secures the connection 41 form-fitting. The head 7 can therefore from the unit 3 through axial peeling, e.g. around by the Cylinder 16 to fill the memory 6 with medium.
  • the piston 18 has a single, free in the flow direction protruding, annular piston lip 62 which is sealed on the inner circumference of the cylinder 16 runs, in the starting position However, lifted from this inner circumference without contact is because the inner circumference at the end counterflow direction is tapered at an acute angle.
  • Within and about the Piston lip 62 is a cylindrical in the flow direction Mandrel 63 of the unit 17 before free, which with its outer circumference the media spaces 12, 13 limited and at the downstream lying end of the stop member 43 and the reduced Carrier 49 carries.
  • the driver 49 is from the end surface 47 of the mandrel 63 with a slender spine portion free which ends with an extended, pointed conical head has as a coupling member 51.
  • the parts 18, 27, 43, 63, 49, 51 are axially fixed together and can be formed integrally with each other.
  • the parts 43, 63 go from the surface 47 to the lip 62 with constant Outside sections through.
  • the tube 24 forms here in the flow direction acute-angled extended funnel end 61, opposite which the unit 17 may be non-contact.
  • the upstream lying end of the piston 18 may also at least one of the bodies 4, 22, 24, 25, 32 with snap members be attached, which are distributed over its circumference and the Inlet opening 45 and the vent opening 69 in the wall 22nd limit.
  • the piston 18 also integrally with the Sheath 32 may be formed.
  • an inlet valve 64 is formed, which in the starting position open and closed after a first partial stroke of the working stroke is because then the lip 62 on the conical Section of the cylinder 16 runs. Upstream closes to this valve seat an annular suction chamber 65, which is bounded by the piston 18 and the jacket 32.
  • the Vorsaug chamber 65 interspersed with its inlet end 45 as the Mantel 32, the end wall 22 and closes immediately upstream to the annular end of the channel 11 and 11a.
  • After closing the valve 64 is the working stroke the Medium in the chamber 12 to the control room within the Lip 55 compacted. This becomes when a limit pressure is exceeded the valve body 53 is displaced against the spring 58 and the medium discharged through the open valve 19 until the mechanically or manually forcibly actuated valve 37 am End of stroke closes.
  • the free end of the jacket 16 forms an opposite flow direction freely protruding, annular piston or sealing lip 66, which slides on the inner circumference of the jacket 32 and with its inner circumference bounded the chamber 65.
  • the sealing lip 66 is permanently upstream of the piston lip 62.
  • the sealing pressure or widening of the lips 54, 55, 62, 66 increases increasing media pressure within the media spaces 11 to 14 too, so that a high density is guaranteed.
  • the Sealing lip 66 is formed integrally with the jacket 16.
  • a similar sealing lip could also be the jacket 35 for have sealed guide on the inner circumference of the shell 33.
  • the coats 33, 35 overlap like the coats 34, 31 each other permanently.
  • aeration means 70 for the memory 6 can between the coats 33, 35 but also air in the annulus between the sheaths 32, 33 and thence through the opening 69 or the wall 22 and the seal 25 in the memory. 6 are supplied, wherein the coats 33, 35 in the starting position form a tight seal for this ventilation path can.
  • the closure may be a valve which is only in Starting position closed and at all other stroke positions is opened, wherein in each case a valve member integrally with the Sheath 33 and the other valve member in one piece with the jacket 35 is formed.
  • the body 4 has on the outer circumference of the coats 23, 34 and the Wall 22 at least one radially projecting cam 67.
  • the body 5 has in the shell 31 distributed over the circumference Breakthroughs or windows 68, which from the wall 29 to near the open cap end of the cap 28 and the wall 29 slit through. In each opening 68 engages a the cam 67 a.
  • the snap connection at the same time forms the fuse 60, since the Cam 67 at the end of the return stroke at the upstream Limit of the window 68 strikes.
  • the opposite to the Axis 9 positional cams 67 has an oblique shoulder, which accumulates during assembly at the cap end of the body 5, the shell 31 resiliently spreads and then into the opening 68th jumps.
  • the head 7 is about the wall 29 around a length at least as large as its outer diameter or several times larger.
  • the seal 41 closes with the free end faces of Projections 37, 38 flush. If the ventilation air for the Store 6 germ-free, so are filter media or germicidal Means appropriate in the ventilation path or in the annulus between the coats 32, 33 arranged tightly.
  • a flat disc or annular germ filter 71 radially clamped to the coats 32, 33 and the front side of the Outside the wall 22 abuts, which following the Outside of the jacket 32 as well as the seal 25 of the Vent opening 69 is interspersed in the plane of the Wall 22 opens into the storage space and from the member 71st is covered.
  • the filter 71 is e.g. a membrane filter and can semipermeable or be formed so that it like a Seal no medium from the memory 6 passes.
  • the dispenser according to the invention its memory 6 or dimensionally stable memory space limitation only a single storage opening, namely the attachment of the Unit 2, and has no drag piston, alone by adding the tube 24 to upright operation be located over the memory 6 lying outlet 15, because then the medium from the bottom area of the memory through the channel 11 is sucked directly into the chamber 65.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • External Artificial Organs (AREA)
  • Coating Apparatus (AREA)
  • Reciprocating Pumps (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
EP98116522A 1997-09-11 1998-09-01 Spender für Medien Expired - Lifetime EP0901836B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19739989 1997-09-11
DE19739989A DE19739989A1 (de) 1997-09-11 1997-09-11 Spender für Medien

Publications (3)

Publication Number Publication Date
EP0901836A2 EP0901836A2 (de) 1999-03-17
EP0901836A3 EP0901836A3 (de) 2000-01-05
EP0901836B1 true EP0901836B1 (de) 2005-05-11

Family

ID=7842041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98116522A Expired - Lifetime EP0901836B1 (de) 1997-09-11 1998-09-01 Spender für Medien

Country Status (8)

Country Link
US (1) US6062433A (ko)
EP (1) EP0901836B1 (ko)
JP (1) JP4327276B2 (ko)
KR (1) KR19990029695A (ko)
AT (1) ATE295230T1 (ko)
BR (1) BR9803417A (ko)
DE (2) DE19739989A1 (ko)
ES (1) ES2242255T3 (ko)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905993A1 (de) * 1999-02-14 2000-08-17 Pfeiffer Erich Gmbh & Co Kg Spender für fließfähige Medien
AU3421600A (en) 1999-02-14 2000-08-29 Ing. Erich Pfeiffer Gmbh Dispenser for flowable media
DE19933330A1 (de) 1999-07-16 2001-01-18 Pfeiffer Erich Gmbh & Co Kg Spender für Medien
DE10159692A1 (de) * 2001-11-29 2003-06-12 Pfeiffer Erich Gmbh & Co Kg Dosiervorrichtung
DE102005043258A1 (de) * 2004-09-14 2006-03-16 Eric Schliemann Vorrichtung zum dosierten Ausbringen eines Mediums
EP1779933A1 (en) * 2005-10-26 2007-05-02 The Procter and Gamble Company Dispenser for a liquid
US20070212307A1 (en) * 2006-02-10 2007-09-13 Daniel Wermeling Pharmaceutical Compositions Comprising an Opioid Receptor Antagonist and Methods of Using Same
CN2937092Y (zh) * 2006-08-02 2007-08-22 袁建军 一种新型液体分配器
DE102007056380B4 (de) 2007-11-22 2020-06-25 WestRock Dispensing Systems Hemer GmbH Verschlusskappe für einen Austragkopf
CN102056677B (zh) * 2008-06-10 2014-02-26 米德韦斯特瓦科卡尔马有限责任公司 流体排出头
DE102008027599A1 (de) 2008-06-10 2009-12-31 Meadwestvaco Calmar Gmbh Fluidaustragkopf
US8109414B2 (en) * 2008-10-07 2012-02-07 Ing. Erich Pfeiffer Gmbh Discharge device
GB201011144D0 (en) * 2010-07-01 2010-08-18 Rieke Corp Dispensers
GB201011143D0 (en) 2010-07-01 2010-08-18 Rieke Corp Dispensers
DE102011086677A1 (de) * 2011-11-18 2013-05-23 Aptar Radolfzell Gmbh Nasalspender
GB201212042D0 (en) 2012-07-05 2012-08-22 Rieke Corp Pump dispensers
NZ703922A (en) 2012-07-26 2017-04-28 Allergan Inc Dual cap system for container-closures to maintain tip sterility during shelf storage
CN102847627B (zh) * 2012-10-15 2015-04-15 深圳市博纳药品包装材料有限公司 一种流体制剂分配喷雾泵
US9833798B2 (en) * 2014-03-10 2017-12-05 Matthew Tait Phillips Dispenser
DE102018216060A1 (de) * 2018-09-20 2020-03-26 F. Holzer Gmbh Pumpkopf sowie Dosiervorrichtung

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GB749691A (en) * 1953-05-18 1956-05-30 Deb Chemical Proprietaries Ltd Reciprocating pumps for dispensing measured quantities of cream, paste, gels and other viscous substances
US3391647A (en) * 1967-01-30 1968-07-09 Calmar Inc Liquid dispensing pump
DE2629558A1 (de) * 1976-07-01 1978-01-12 Zeller Plastik Koehn Graebner Zerstaeuberpumpe fuer fluessigkeiten
DE2732888A1 (de) * 1977-07-21 1979-02-01 Zeller Plastik Koehn Graebner Kolbenpumpe
US4494680A (en) * 1980-02-13 1985-01-22 Corsette Douglas Frank Manually operated dispensing pump
US4496082A (en) * 1981-12-18 1985-01-29 Corsette Douglas Frank Liquid dispensing pump
DE3339180C2 (de) 1983-10-28 1993-10-14 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
DE3544985A1 (de) * 1985-12-19 1987-06-25 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer fliessfaehige medien
DE3839590A1 (de) * 1988-11-24 1990-05-31 Pfeiffer Erich Gmbh & Co Kg Ventil, insbesondere fuer manuelle austragvorrichtungen
DE4027672A1 (de) * 1990-08-31 1992-03-05 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
FR2694607B1 (fr) * 1992-08-10 1994-10-07 Step Soc Tech Pulverisation Perfectionnement à l'assemblage d'une pompe dans un réservoir.
US5655688A (en) * 1994-10-19 1997-08-12 Aptargroup, Inc. Atomizing pump with high stroke speed enhancement and valve system therefor
DE4441263A1 (de) 1994-11-19 1996-05-23 Caideil M P Teoranta Tormakead Austragvorrichtung für Medien
DE19606703A1 (de) 1996-02-22 1997-08-28 Caideil M P Teoranta Tourmakea Austragvorrichtung für Medien
DE19610457A1 (de) 1996-03-16 1997-09-18 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
DE19627228A1 (de) * 1996-07-05 1998-01-08 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
DE29622983U1 (de) 1996-07-05 1997-10-30 Ing. Erich Pfeiffer GmbH, 78315 Radolfzell Austragvorrichtung für Medien

Also Published As

Publication number Publication date
EP0901836A2 (de) 1999-03-17
ATE295230T1 (de) 2005-05-15
DE19739989A1 (de) 1999-03-18
DE59812775D1 (de) 2005-06-16
BR9803417A (pt) 1999-11-23
US6062433A (en) 2000-05-16
KR19990029695A (ko) 1999-04-26
JPH11156252A (ja) 1999-06-15
EP0901836A3 (de) 2000-01-05
ES2242255T3 (es) 2005-11-01
JP4327276B2 (ja) 2009-09-09

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