EP1834704A2 - Distributeur de produit fluide - Google Patents

Distributeur de produit fluide Download PDF

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Publication number
EP1834704A2
EP1834704A2 EP07003382A EP07003382A EP1834704A2 EP 1834704 A2 EP1834704 A2 EP 1834704A2 EP 07003382 A EP07003382 A EP 07003382A EP 07003382 A EP07003382 A EP 07003382A EP 1834704 A2 EP1834704 A2 EP 1834704A2
Authority
EP
European Patent Office
Prior art keywords
piston
pumping chamber
discharge device
membrane
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07003382A
Other languages
German (de)
English (en)
Other versions
EP1834704A3 (fr
Inventor
Miro Cater
Jürgen Greiner-Perth
Peter Stadelhofer
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 EP1834704A2 publication Critical patent/EP1834704A2/fr
Publication of EP1834704A3 publication Critical patent/EP1834704A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—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
    • B05B11/0005—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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • 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
    • B05B11/1002—Piston pumps the direction of the pressure stroke being substantially perpendicular to the major axis 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
    • B05B11/1001—Piston pumps
    • B05B11/1015—Piston pumps actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • 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
    • B05B11/105—Sealing arrangements around pump actuating stem
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1059—Means for locking a pump or its actuation means in a fixed position
    • B05B11/106—Means for locking a pump or its actuation means in a fixed position in a retracted position, e.g. in an end-of-dispensing-stroke position
    • 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

Definitions

  • the invention relates to a discharge device for a flowable medium with a pumping device comprising a pumping chamber, which is closed on one side by a longitudinally movable piston.
  • Generic discharge devices serve the discharge of cosmetic or pharmaceutical media. These are conveyed by actuation of the pump from a media storage and discharged through a discharge opening into an environment.
  • the pumping process is usually triggered by a manually operable actuator, by means of which a piston is displaced in the pump. Thereby, a discharge pressure is generated, which pushes the medium in the pumping chamber through the discharge opening from the discharge device.
  • a disadvantage of known discharge devices is considered that the sealing of the pumping chamber with respect to the environment, in particular in the region of the actuator, is often unsatisfactory. There is an unwanted escape of medium from the discharge and an unintentional entry of contaminants in the discharge.
  • the object of the invention is to improve the known from the prior art discharge devices, in particular with regard to the sealing of the pumping chamber.
  • a generic discharge device in which the pump chamber is hermetically sealed on the piston side with respect to an ambient atmosphere outside the discharge device by means of a gas-impermeable and at least partially flexible membrane, wherein the membrane is firmly connected in its edge region to a housing of the discharge device.
  • the membrane is preferably formed as a thin plastic layer. It is elastic in order to still be able to follow the stroke movement of an actuating device or of the piston when the clamping is fixed to the housing at its edge region.
  • the fixed housing clamping ensures safe protection against contamination, especially from microbiological contaminants.
  • the stationary clamping a hermetic seal is achieved in contrast to sliding and usually play with sealing surfaces.
  • the clamping of the edge region is preferably carried out by latching or clamping means, by which the edge region is pressed against a housing-side support surface, so that the sealing effect is also given in this Einhards Symposium.
  • a stiffening can be achieved in addition, the sliding out of the Counteracts membrane from the locking or clamping means.
  • embodiments with a glued attachment of the edge region of the membrane may also be expedient.
  • embodiments of the invention are also included in which the membrane is integrally connected to the housing. This can be achieved by using the same material for housing and membrane with significantly reduced wall thickness in the membrane. Alternatively, the integral nature of a two-stage injection process but also with different materials can be achieved. As a material combination, for example, offers PP for the housing and TPE for the membrane.
  • the fixed connection of the membrane with the housing need not be made in the area of the outer surface. Under housing are to be understood in the context of the invention housing-fixed components.
  • the housing also includes the inner wall of the pumping chamber, which need not be integrally formed with an outer surface of the housing.
  • the membrane is connected to an operating device operatively connected to the piston.
  • an operating device operatively connected to the piston.
  • Particularly preferred is a one-piece design.
  • the edge region of the membrane is preferably fixed to the outer wall of the housing, for example, clamped in an outwardly facing groove on the housing surface.
  • the connection with the actuator is preferably made in one piece, so that the actuator is made of the same material as the membrane and obtains the required stability by a correspondingly thicker material thickness.
  • the membrane may also be provided as a separate component which completely covers the actuating device in the manner of a protective cover.
  • the membrane is connected to the piston.
  • Particularly preferred is a one-piece design.
  • the pumping chamber is closed directly from the elastic membrane, so that the change in volume of the pumping chamber is achieved in the course of actuation on the elastic deformation of this membrane.
  • the membrane is preferably attached to the pumping chamber wall.
  • the edge region of such a membrane simultaneously forms the bearing surface for a return spring of the actuator, so that the return spring in addition to the task to push the actuator back to the starting position, also fulfills the task to press the membrane against its support surface, so that a very good seal in the edge region of the membrane is achieved.
  • the membrane is provided as a separate component between the piston and the pumping chamber.
  • the piston is longitudinally movable in a piston direction, which encloses a right angle with a main extension direction of the discharge device.
  • the invention is very simple and inexpensive to implement. This is mainly due to the fact that the membrane is not arranged on a side facing the media storage side of the pumping chamber and thus does not complicate the supply of the medium into the pumping chamber by their location.
  • an inlet channel and / or an outlet channel are arranged in the pumping chamber on the side facing away from the piston.
  • Embodiments are particularly preferred in which an actuating element is provided on the piston side, which is in operative connection with the inlet channel or the outlet channel depending on the piston position, the operative connection particularly comprising opening or closing the inlet channel or the outlet channel.
  • the purpose of such a configuration is that the piston depending on its position can prevent a supply or discharge of the medium into the pumping chamber or from the pumping chamber. This is particularly advantageous because in discharge devices according to the invention, in which the piston or a piston-fixed membrane is fixed to the side wall of the pumping chamber, a conventional control of the outflow or inflow via inlets or outlets, which are provided on a lateral pumping chamber , are not feasible.
  • a particularly simple embodiment of this development provides that a closing pin extends in the direction of piston movement, starting from the piston in the pumping chamber, which causes a decoupling of the pumping chamber from the media storage from a fixed stroke position by entering into the media inlet. From this stroke position further movement of the piston causes an increase in pressure in the pumping chamber, resulting in a discharge.
  • the actuating element can also be used to connect the pumping chamber again with the media reservoir from a second fixed stroke position in order to cause a sudden pressure drop in the pumping chamber.
  • a configuration is expedient with regard to the so-called priming, ie the first filling of the pumping chamber with medium.
  • the piston is fully inserted into the pumping chamber until it reaches the second stroke position. In this stroke position, the compressed air escapes from the pumping chamber in the media reservoir or in the environment, so that the return stroke creates a negative pressure, which causes the Clearbe colllung the pumping chamber.
  • an air outlet device for discharging the air in the pumping chamber in the course of commissioning, wherein the air outlet device is arranged and designed such that it is opened at a pump chamber volume reducing movement of the piston in a second stroke position, which is beyond a first Lifting position is in which causes in a normal operation, the fluid pressure of the medium in the pumping chamber, an opening of an exhaust valve of the discharge.
  • the piston With such a discharge device, the piston is pressed into the air-filled pumping chamber during startup until the second stroke position is reached, in which the air outlet device is opened by the piston.
  • the compressed air can then escape through the air outlet device, for example, to the outside or into the media container.
  • the air outlet device In the course of the return stroke, the air outlet device is directly or indirectly closed again by the piston, so that the air can not get back into the pumping chamber.
  • medium is transferred directly from the media container into the pumping chamber sucked or generates a negative pressure in the pumping chamber, which suddenly leads to a filling of the pumping chamber with the medium upon release of a media channel from the media container to the pumping chamber through the piston.
  • the second stroke position is not reached or only after opening the exhaust valve of the discharge and a discharge associated therewith, so that no medium or only a small amount of the medium in the second stroke position escapes through the air outlet.
  • the air outlet device may additionally have a filter which prevents unwanted escape of liquid medium through the air outlet device during normal operation.
  • Fig. 1 shows a first embodiment of a discharge device according to the invention.
  • This discharge device is provided for the application of a medium in an eye. It has, as essential main components, a housing 10 with an actuating device 30, a pump device 40 arranged in the housing and a discharge valve unit 60. By means of a provided on the inner wall of the housing internal thread 12 is connected by unspecified detents secured against loosening media container 80 with the discharge device.
  • connection of the media container 80 to a pumping chamber 46 of the pumping device 40 is made through an inlet channel 44 which extends into the media container 80 within an opening mandrel 48.
  • an opening mandrel 48 By means of this opening mandrel 48, a membrane 82 of the media container 80 is pierced.
  • the inlet channel 44 leads into a pumping chamber 46, which is closed on one side by a piston 50.
  • an outlet channel 56 is provided which leads to the discharge valve unit 60.
  • the piston 50 is fixedly connected by a latching connection with a main shaft 32 of the actuator 30. At the outer end of the main shaft 32, this integrally merges into the approximately hemispherical elastic membrane 34.
  • This membrane 34 is at its outer end in an edge region 36 with increased wall thickness, which by a one-piece on the housing 10 molded circumferential locking ridge 14 is fixed in a housing-fixed position.
  • a return spring 38 By a return spring 38, the actuating device 30 is always pushed outwards, whereby the piston 50 is pulled in a stroke end position at maximum volume of the pumping chamber 46.
  • a separate return spring is avoided in that the elastic membrane itself applies the restoring forces.
  • the discharge valve unit 60 has an integrally formed on the housing 10 discharge sleeve 62, within which a lock pin 64 is disposed. If - as in the illustrated state - there is no pressure in the pumping chamber 46 and in the discharge chamber 56 connected to the pumping chamber 46 through the discharge port 56, the closing pin 64 is pressed by a closing spring 66 in the discharge sleeve 62, so that a discharge opening 68 at the distal End of the discharge sleeve 62 is sealed by the lock pin 64.
  • the closing pin 64 has, on its side facing away from the discharge opening 68, a particularly large collar-shaped pressure plate 70, which is adjoined externally by a circumferential support web 72, which rests against the pumping device 40.
  • the pressure plate 70 itself is spaced from the pumping device 40, wherein the gap is sealed by means of the support web 72 to the outside and filled with air.
  • the actuating device 30 is depressed in normal operation in a pumping direction 90, deforms the membrane 34, wherein the edge portion 36 is clamped to the housing 10.
  • the connection of the inlet channel 44 to the pumping chamber 46 is interrupted by the piston 50.
  • the fluid pressure of the medium in the pumping chamber 46, in the outlet channel 56 and in the discharge valve unit 60 becomes increases until the pressure on the pressure plate 70 is sufficiently high to move the closing pin 64 against the spring force of the closing spring 66. Due to the size of the pressure plate 70, a comparatively low pressure is sufficient for this purpose.
  • the pressure plate 70 is elastically deformed by the pressure.
  • the medium escapes through the discharge opening 68 in a main extension direction 92 of the discharge device, wherein it does not form a spray jet due to the low pressure, but rather drops are formed at the discharge opening 68.
  • An advantage of the discharge device shown in Fig. 1 and described above is the structure which allows a comfortable and safer handling.
  • the inventive hermetic encapsulation of the pumping chamber 46 is particularly advantageous from an outside atmosphere due to the special design of the actuating device 30 with the deformable membrane 34, which effectively prevents contamination of the medium in the pumping chamber 46.
  • This encapsulation is particularly easy to implement in the orthogonal design of the discharge because it does not come into conflict with a supply line from the media container 80 with respect to the arrangement.
  • the hermetic encapsulation prevents both the escape of medium into the environment, which passes on the piston 50 from the pumping chamber 46 in the direction of the actuator 30. Above all, however, it prevents the occurrence of soiling, in particular of microbacterial contaminants.
  • FIG. 2a and 2b show a second embodiment of a discharge device according to the invention in two different states, wherein Fig. 2a shows a state prior to actuation of an actuator 130 and Fig. 2b shows a state during actuation of the actuator 130.
  • the discharge device of FIGS. 2 a and 2 b has a housing 110 with the actuating device 130 and a discharge valve unit 160.
  • the housing 110 there is a pumping device 140 with a piston 150, wherein a pumping direction 190 of the piston, which simultaneously represents the direction of movement of the actuating device 130, is perpendicular to a main extension direction 192 of the discharge device, which corresponds to the discharge direction of the medium.
  • the piston 150 is formed as a flexible membrane, which is fixedly connected in a central region 152 with the actuator 130. At the outer edge region 154 of the membrane, this is fixed in the pumping device and thus seals off a pumping chamber 146 limited thereby against the actuating device 130 and in the case of penetrating contaminants.
  • the inlet channel 144 is arranged so that it opens at the piston 150 opposite end face of the pumping chamber 146 ,
  • the piston 150 is formed in its central portion 152 so that it in the course of actuation of this inlet channel 144 closes and thereby allows the structure of the liquid pressure required for the discharge process.
  • the design of the discharge valve unit 160 comprises a closing pin 164, which is integrally formed on the housing 110.
  • a circular groove 174 is provided on the housing surface into which an edge region 176 of an elastic discharge sleeve 162 is inserted.
  • the discharge valve unit 160 opens by releasing a discharge opening 168.
  • the closed state is shown in FIG. 2a.
  • the opened state is shown in FIG. 2b.
  • the piston 150 is thereby also pressed into the pumping chamber 146, wherein the edge region 154 of the piston remains immovably fixed to the housing and prevents the penetration of impurities into the pumping chamber 146 ,
  • the central region 152 of the piston 150 is pressed into the inlet channel 144 and closes it with respect to the pumping chamber 146. From a stroke position in which the inlet channel 144 is closed, the progressive stroke movement of the piston leads to an increase in the fluid pressure in the pumping chamber 146, Outlet channel and the pressure chamber 170. This increase in the liquid pressure results in the manner described above to open the Austragventilmaschine 160, as shown in Fig.
  • the discharge returns after discharge of the medium in its original position and elastically relaxed original form.
  • the actuator 130 is pushed back by a return spring 138 in the original position, with a negative pressure in the pumping chamber 146 sets. Only when the central region 152 of the piston 150, the inlet channel 144 releases again, can again Medium are sucked out of a media container 180 by the resulting negative pressure in the pumping chamber 146.
  • FIGS. 3a to 3d show a third embodiment of a discharge device according to the invention.
  • this embodiment corresponds to the embodiments of FIGS. 1, 2a and 2b.
  • the hermetic sealing of a pump chamber 246 by means of a hemispherical membrane 234, which is made integral with an actuator 230 it corresponds to the embodiment of Fig. 1.
  • the peculiarity of this embodiment is a special design of the pumping device 240 in terms of commissioning.
  • this third embodiment has an opposed piston 260 disposed on the opposite side of the pumping chamber 246.
  • Fig. 3a shows the delivery state in which the pumping chamber 246 is completely filled with air.
  • the first piston 250 is pressed by a return spring 238 in its upper end position.
  • the opposing piston 260 is also urged by the opposing piston spring 264 in its upper end position, so that the pumping chamber 246 is separated from the outlet channel 256.
  • the first piston 250 is manually pressed downwards by means of the actuating device 230.
  • the membrane 234 is elastically deformed while maintaining the hermetic seal of the pumping chamber 246.
  • the pumping chamber 246 is sealed to the outside.
  • the air in the pumping chamber 246 is compressed until the air pressure is sufficiently high to urge the opposed piston 260 against the spring force of the opposed piston spring 264 towards its lower limit position.
  • the opposed piston 260 as shown in Fig. 3b is shown;
  • the pumping chamber is completely empty. Pressed up by the force of the opposing piston spring 264, the opposing piston 260 is pressed flush against the first piston 250, so that the volume of the pumping chamber 246 in this state is approximately zero.
  • the counter-piston 260 remains pressed flush against the piston 250 until the counter-piston 260 has reached its upper end position, which is defined by the boundary of the counter-piston guide 262. From this position, which is shown in FIG. 3c, the pumping chamber volume 246 increases again in the course of the further return stroke of the first piston 250, whereby a strong negative pressure is created in the pumping chamber 246. As soon as the first piston 250 has again arrived in the region of the inlet channel 244, medium is therefore suddenly drawn from a media container (not shown) through the inlet channel 244 into the pumping chamber 246.
  • FIGS. 4a to 4d show a fourth embodiment of a discharge device according to the invention.
  • the transverse arrangement of a pump in the discharge device in this fourth embodiment corresponds to the first three embodiments.
  • a pumping chamber 346 is delimited on one end by a piston 350.
  • the side wall of the pumping chamber is formed by a bellows 347.
  • This bellows 347 is fixed in the housing on the side facing away from the piston, so that the pumping chamber 346 closed by it remains free of contaminants which penetrate into the housing in the region of the piston 350.
  • a media inlet channel 344 and a media outlet channel 356 open into the pumping chamber 346, wherein an inlet valve 330 with a valve slide 332 is provided at the inlet channel 344.
  • the valve spool 332 is provided as a hollow cylinder closed on one side, on the open lower side of which a circumferential latching edge 334 extends inwards, which prevents the valve spool 332 from slipping off a cylindrical extension piece 345 of the inlet channel 344.
  • an actuating pin 351 is formed on the piston 350, which extends in a pumping direction 390 and is disposed over an outer edge of the closed side of the valve spool 332.
  • the pumping device 340 shown allows a good venting of the pumping chamber 346 in the course of the commissioning of the discharge.
  • Fig. 4a shows an initial position of the discharge device.
  • the pumping chamber 346 has its maximum volume and is filled with air.
  • the piston 350 which simultaneously constitutes an actuating device, is pressed down in the pumping direction 390. This results in an increase of the air pressure in the pumping chamber, with the result that the valve slide 332 on the extension 345 of the inlet channel 344 slides down and thus closes the inlet channel 344, as shown in Fig. 4b.
  • the air in the pumping chamber 346 is further compressed until the actuating pin 351 reaches the valve slide 332.
  • the medium which has entered the pumping chamber can then escape through the discharge opening 368 of the discharge valve unit 360 during the subsequent actuation of the piston 350, whereby the valve slide 330 ensures that the inlet channel 344 is closed to build up pressure in the pumping chamber 346 even in this normal operation. If in such a lifting movement in normal operation in the lower end position of the inlet channel 344 is opened by the actuating pin 351, the remaining medium escapes from the pumping chamber 346 back into the media container.

Landscapes

  • Reciprocating Pumps (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP07003382A 2006-03-13 2007-02-17 Distributeur de produit fluide Withdrawn EP1834704A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006012898A DE102006012898A1 (de) 2006-03-13 2006-03-13 Austragvorrichtung für ein fließfähiges Medium

Publications (2)

Publication Number Publication Date
EP1834704A2 true EP1834704A2 (fr) 2007-09-19
EP1834704A3 EP1834704A3 (fr) 2009-07-22

Family

ID=38165181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07003382A Withdrawn EP1834704A3 (fr) 2006-03-13 2007-02-17 Distributeur de produit fluide

Country Status (5)

Country Link
US (1) US8006870B2 (fr)
EP (1) EP1834704A3 (fr)
JP (1) JP5565891B2 (fr)
AT (1) ATE524239T1 (fr)
DE (1) DE102006012898A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2929249B1 (fr) 2008-03-27 2012-02-17 Rexam Pharma La Verpilliere Dispositif de distribution de liquide contenu dans un reservoir
FR2937019B1 (fr) 2008-10-15 2012-06-08 Rexam Pharma La Verpilliere Dispositif de distribution de liquide muni d'un organe d'etancheite ayant une partie elastomere
FR2941682B1 (fr) * 2009-02-03 2016-03-11 Sivel Dispositif de conditionnement et distribution d'un produit propre ou sterile avec embout autonettoyant
WO2011099309A1 (fr) * 2010-02-15 2011-08-18 Abe Shuntaro Réceptacle de stockage et des fluide et son couvercle
US9241828B2 (en) * 2010-04-06 2016-01-26 Reseal International Limited Partnership Delivery system for dispensing metered volumes of pure or sterile flowable substances
DE102010063587B4 (de) * 2010-12-20 2018-03-15 Aptar Radolfzell Gmbh Austragvorrichtung für eine Flüssigkeit
DE102011007405A1 (de) * 2011-04-14 2012-10-18 Ing. Erich Pfeiffer Gmbh Kosmetik-Spender
SG10201801222YA (en) 2012-07-26 2018-04-27 Allergan Inc Dual cap system for container-closures to maintain tip sterility during shelf storage
DE102013202531B3 (de) 2013-02-16 2014-05-28 Aptar Radolfzell Gmbh Spender zum Austrag von Flüssigkeiten
DE102018117731A1 (de) * 2018-01-16 2019-07-18 F+K Innovationen Gmbh & Co. Kg Vorrichtung zur Dosierung von Flüssigkeit
DE102018216060A1 (de) * 2018-09-20 2020-03-26 F. Holzer Gmbh Pumpkopf sowie Dosiervorrichtung
EP3860408A1 (fr) * 2018-10-05 2021-08-11 Bryan Campbell Récipient d'alimentation activé par pompe
EP3730220B1 (fr) 2019-04-26 2022-07-06 Aptar Radolfzell GmbH Distributeur destiné à la sortie des liquides pharmaceutiques
EP3730219B1 (fr) 2019-04-26 2022-03-23 Aptar Radolfzell GmbH Distributeur destiné à la sortie des liquides pharmaceutiques
CN216581924U (zh) * 2021-11-27 2022-05-24 中山市联昌喷雾泵有限公司 一种防水防补气孔进液的按压泵
CN115363862B (zh) * 2022-10-25 2022-12-27 吉林大学 用于清创伤口的伤口敷料护理装置

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FR2632545A1 (fr) 1988-06-14 1989-12-15 Schwan Stabilo Schwanhaeusser Applicateur pour masse visqueuse, de preference cosmetique
FR2647757A1 (fr) * 1989-06-05 1990-12-07 Postollec Madeleine Distributeur de doses predeterminees d'un produit liquide ou pateux, notamment produit alimentaire ou cosmetique
WO2001044076A2 (fr) 1999-12-13 2001-06-21 Techniplast Dispositif de distribution d'un produit comprenant un reservoir loge dans un boitier
EP1170061A2 (fr) 2000-07-06 2002-01-09 Ing. Erich Pfeiffer GmbH Distributeur de fluides

Also Published As

Publication number Publication date
ATE524239T1 (de) 2011-09-15
US8006870B2 (en) 2011-08-30
US20070210114A1 (en) 2007-09-13
EP1834704A3 (fr) 2009-07-22
JP2007245145A (ja) 2007-09-27
JP5565891B2 (ja) 2014-08-06
DE102006012898A1 (de) 2007-09-20

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