EP0709141A2 - Dispositif distributeur de substances, ainsi que procédé et dispositif de remplissage d'un dispositif distributeur - Google Patents

Dispositif distributeur de substances, ainsi que procédé et dispositif de remplissage d'un dispositif distributeur Download PDF

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Publication number
EP0709141A2
EP0709141A2 EP95114858A EP95114858A EP0709141A2 EP 0709141 A2 EP0709141 A2 EP 0709141A2 EP 95114858 A EP95114858 A EP 95114858A EP 95114858 A EP95114858 A EP 95114858A EP 0709141 A2 EP0709141 A2 EP 0709141A2
Authority
EP
European Patent Office
Prior art keywords
filling
connection
discharge
housing
media
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Withdrawn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
EP95114858A
Other languages
German (de)
English (en)
Other versions
EP0709141A3 (fr
Inventor
Stefan Ritsche
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 EP0709141A2 publication Critical patent/EP0709141A2/fr
Publication of EP0709141A3 publication Critical patent/EP0709141A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00442—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being actuated by the difference between the atmospheric pressure and the pressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling 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
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • B05B11/1026—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem the piston being deformable and its deformation allowing opening of the outlet

Definitions

  • the invention relates to a discharge device for media, a method for filling a discharge device with a medium and a device for filling a discharge device with a medium or for carrying out the method.
  • It can be a single medium, two or more media, which can be liquid, pasty, powdery and / or gaseous or similar and in particular form a flowable fluid or a filler.
  • Filling the discharge devices can be particularly difficult if the medium or the surfaces acted upon by it are to be kept sterile during the filling, sterilized or should remain sterile even after a long storage period, which is usually the case with a fluid-tight or pressure-tight closure of the storage with a storage closure , a discharge conveyor or the like is prevented because germs are introduced into the components of the discharge device with the ambient air present. Furthermore, the filling of the still open memory and its subsequent closure can be labor-intensive and complicated because, for example the discharge devices cannot be prepared for use fully assembled and kept ready by storage and can then be filled at any time without further closure or assembly work.
  • the invention is also based on the object of creating a discharge device or a method or a device by means of which disadvantages of known designs or of the type described can be avoided or advantages of the type mentioned can be achieved, in particular simple and / or aseptic filling to be achieved.
  • means are provided to fill the storage area in the area of a pre-assembled or pre-assembled closure or a discharge conveyor, although, although also conceivable, the filling is not carried out or only partially through a media channel which is flowed through when the discharge device is used, but essentially through a separate channel, e.g. such as is suitable for pressure equalization in the memory.
  • the filling channel is expediently sealed before and until the beginning of the filling and / or immediately from the end of the filling and essentially over the entire period of use of the discharge device or in its state of use with respect to the outside atmosphere, so that it is only open while the medium is in use flows into the storage from outside the discharge device.
  • the discharge device can each have a simple or multiple arrangement of a base body, a media store, a storage closure, a discharge conveyor, a discharge actuation, a media outlet, an outlet channel, an inlet channel, a constrictable pressure chamber for generating a discharge delivery pressure, a filling channel or have a filling connection for the memory or the like. These arrangements in any combination can form one or more pre-assembled units for assembly with the rest of the discharge device.
  • the filling connection appropriately bypasses the pressure chamber, the inlet channel and / or the outlet channel and one or more valves located in the associated flow paths, e.g. Inlet and outlet valves, return spring means, a riser pipe or the like. Partially or completely. This also applies expediently to a fastening or tensioning element, such as a crimp ring, which is used to fasten the closure or discharge conveyor to the store.
  • a fastening or tensioning element such as a crimp ring
  • the design according to the invention is particularly suitable for discharge devices in which the discharge conveyor is connected to the stored medium via an inlet or suction channel and / or a one-way inlet valve in such a way that medium is sucked into the pressure chamber and then pressed out of the latter to the outlet opening with an increase in pressure becomes.
  • it is also suitable for discharge devices in which the entire stored medium can be discharged completely in a single actuation process or with an actuation only in the same direction, e.g. characterized in that the accumulator simultaneously forms the pressure chamber or a cylinder of a thrust piston pump and is free of inlet openings for its filling in the state of use.
  • a filling valve or closure is advantageously provided with valve-closing surfaces located inside the externally sealed storage space and / or outside the closure, which advantageously has a valve passage arranged in a ring around a main axis of the discharge device and only open depending on the pressure under the filling pressure or not existing filling pressure automatically resilient immediately pressure-tight can close.
  • the filling channel can be separated from an adjacent housing space, for example the pressure chamber, only in a pressure-tight manner by a single or two or three sealing lips lying axially one behind the other, so that with a very compact design it is avoided that medium is filled into the pressure chamber or at a return spring adjoining this reaches one or more valves.
  • a filling valve can also be located within the closure or discharge conveyor and can only be closed in its initial position, so that it is opened when the discharge device is actuated later.
  • the store is expediently closed essentially pressure-tight before filling and then filled from the outside, the filling instead of, as is also conceivable, not from the bottom of the store opposite the closure, but from an area at a distance from it through at least one wall, which is advantageously formed by the closure unit, so that no wall of the reservoir has to be flowed through directly during filling and the reservoir requires only a single vessel opening.
  • all the wall boundaries of the memory which delimit the storage space can be formed in one piece from one another from glass or the like.
  • a pressure equalization channel via which a pre-fill, which may be present under normal pressure in the reservoir, is led out from the reservoir to the outside or the like to the extent that the medium enters the reservoir.
  • This pressure equalization channel is Appropriately provided completely separately from the filling channel, so that the pre-filling and the medium come into contact with each other only within the storage space, but not in the area of the flow paths connected to it.
  • the discharge device has an inlet or riser opening in the area of the bottom of the reservoir, it is expediently filled in the overhead position, namely with the reservoir bottom up and the reservoir closure at a distance below it on the underside, so that the mouth of the riser always above of the level of the filling with the medium lies within the pre-filling. It is thereby also achieved that the valve closing surfaces of the filling valve or valves are always completely flushed or immersed in the medium without bubbles during filling.
  • the remaining part of the storage space can be filled with an additional filler at the same time as the filling or subsequent to the filling with the medium, which advantageously has a different state of matter than the medium has, e.g. is gaseous.
  • This filler can be a germicidal or low-reacting gas or a gas that does not chemically react with the medium in any way, such as nitrogen, with which the prefill can also be completely expelled from the storage space and the filling channel can be cleaned.
  • a device for filling a discharge device expediently has a filling head which is suitable for fluid or media-tight connection to the filling connection of the discharge device in such a way that the storage space and / or the connection connection is sealed pressure-tight to the outside.
  • actuating means which are expediently formed by the filling head itself or by one or more components which also serve to guide the fluid during filling.
  • One or more identical and / or different discharge devices can be filled simultaneously by one or more filling heads.
  • the filling head advantageously lies only in the filling state on those surfaces of the discharge device which, in their state prepared for filling, have outer surfaces, e.g. Form outer peripheral surfaces or outer end faces so that the filling head does not have to engage in the inner or inner surfaces of the discharge device, which serve to guide the media.
  • the filling head can have two or more mutually movable holding bodies for the discharge device, which expediently form control members in order to hold parts or units of the discharge device that can be moved against one another in a mechanically positively controlled manner in different relative positions regardless of the media or fluid pressure.
  • the discharge device 1 which can be carried freely with one hand and is operated at the same time, has a base body 2 which contains a store 3 with a storage space 4 and a narrowed neck 5 with a vessel opening 6 and a discharge conveyor 7 with a discharge actuation 8 and a housing 9, which is parallel are elongated to each other. Essentially all components and units lie approximately in or parallel to a main axis 10 of the device 1.
  • the housing 8 has an elongated, continuously thin-walled, sleeve-shaped housing body 11, which has a closure at its end accessible from the outside of the memory 3 , e.g. a separate cover 12 is closed, which engages over the associated end of the body 11 on the outer and / or inner circumference.
  • the housing 9 has an annular disk-shaped, radially projecting flange 13, which is formed by the cover 12 and lies between the outer end face of the neck 5 and a fastening member 14, such as a crimp ring, which holds the housing 9, which is dimensionally stable in use, in position the rigid memory 3 connects by tension.
  • a fastening member 14 such as a crimp ring
  • the inner circumference of the outermost housing shell of the housing 9 forms an engagement surface or track 16 for an elongated actuation and piston unit 15, which is connected to the Most of its length engages only in the interior of the housing 9, axially penetrates the closure 12 and projects freely accessible for actuation with its free end from the associated end of the housing 9.
  • the outer end is the end that is further away or turned away from the wall of the store 3 opposite the discharge conveyor 7 or housing 9, while the inner end is closer to this wall or faces it.
  • the unit 15 carries in the area of its inner end a sleeve-shaped or ring-shaped piston 18, which pressure-tightly seals a pressure chamber 17 at its front end at its outer end with an ring-shaped sealing lip 19, which on the raceway 16 is slidably guided under radial prestress such that an inward stroke movement of the unit 15 reduces the volume of the pump chamber 17, while an outward return stroke movement increases this volume.
  • an outlet channel 20 leads to the outside to a media outlet opening, which is usually provided on an actuating and discharge head fixedly connected to the outer end of the unit 15 or by at least one atomizing nozzle, a nozzle for a bundled media jet or the like. formed and in the passage cross section is narrower than the rest of the outlet channel.
  • this head can only be fastened to the unit 15 ready for use by means of an axial plug connection and can also be detached or removed again in a non-destructive manner.
  • the outlet channel 20 passes through the interior of the unit 15 in the longitudinal direction so that it does not communicate with the outer periphery of this unit, but is completely sealed off from this outer periphery.
  • an outlet valve 21 is provided with annularly engaging valve closing surfaces, the resiliently movable valve body at the axial distance from the end 19 is formed by the inner circumference of the rotor 18, while the annular valve seat is formed by a frustoconical annular shoulder of a core body 22 which at least partially penetrates the piston 18.
  • the core body 22 forms part of a two-part actuating or piston tappet 23, the two elongated, axially identical components are so axially plugged together that they clamp the outer end of the piston sleeve radially between them to secure the position.
  • this plunger 23 protrudes freely over the outer end of the housing 9, wherein it forms in its outermost end face an outlet opening for medium which, when the discharge head is attached, is connected pressure-tight to a corresponding channel section lying within this head and leading to the media outlet is.
  • a valve or return spring 24 which is supported with its outer end only on the core body 22 on the unit 15, while its inner end is supported on an inner annular shoulder of the housing 9.
  • the adjoining the outer end of the space 17 and separated from the space 17 in a pressure-tight manner by the piston 18 or the lip 19, the cross-sectionally annular interior 25 of the housing 9 is axially enlarged or reduced in opposition to the space 17 by the movement of the unit 15 and is delimited on the inner circumference by the piston sleeve, while it is delimited on the outer circumference by the wall of the housing body and on its outer end face by the closure 12.
  • valve body of which is formed by a frustoconical section of the outer circumference of the piston sleeve, while its valve seat is formed by an annular shoulder is formed at the inner end of the closure 12.
  • valve body and valve seat are each formed by valve parts, the piston sleeve 2 here forming axially adjacent movable valve parts, while the core body 22 and the closure 12 each form a fixed valve part. All valve parts of the valve 21 carry out the working or lifting movements of the unit 15, which is axially displaceable and / or rotatable relative to the other components which are connected to one another in a fixed manner by force application on the tappet 23.
  • Each of these components 3, 5, 7, 9, 11, 12, 13, 14, 16 can form the base body, with essentially all of the arrangements and components described lying approximately in or parallel to the axis 10.
  • the space 17 is also connected to the storage space 4 via a one-way inlet valve 27, which is advantageously located at the inner end of the space 17 or the body 11 and a valve body, such as a valve ball, which can be moved freely between a closed position and an open position without spring loading , having.
  • the inner end of the spring 24 forms an annular stop for the open position of the valve body and is sleeve-shaped due to axially backlash-free spring windings which are located at a small radial distance from the inner circumference of the housing shell, so that the stop sleeve protrudes axially without contact against the valve body and the forehead - or center stop face radially by itself against the adjacent valve body.
  • an inlet channel 29 for example a flexible hose, a riser pipe or the like, is connected with its outer end, the inner end
  • the end according to FIG. 1 of the unit 7 lies directly on the bottom of the storage space 4 and only forms an entry opening there.
  • the unit 7 or the housing 9 projects with most of its length through the vessel opening 6 delimited by the inner circumference of the free end face of the neck 5 into the storage space 4 freely or essentially without contact. It, but not the unit 15, is penetrated by a channel-like filling connection 30, which connects the outer end of the unit 7 or 9, which is at a distance outside the opening 6, to the storage space 4 and in the area of the inside of the neck 5 into this space 4 opens.
  • the externally accessible filling opening 31 of this connection 30 lies in the plane of the outer end face of the housing 9 and is like a subsequent channel section 32 from the inner circumference of the housing 9 or the closure 12 and from the outer circumference of the unit 15 or the plunger 23 and the piston sleeve limited, with the valve 26 lying at the inner end of this section 32, which opens directly into the space 25.
  • the section 32 can be formed by longitudinal grooves in one or both of the above-mentioned circumferences, so that it is distributed essentially uniformly in a ring around the axis 10.
  • the space 25 forms the adjoining, also annular channel section 33, which is limited in the manner described and can also be limited by the outer circumference of the closure 12, so that its outer end protrudes axially beyond the closable valve seat 26.
  • the casing of the housing 9 or only of the body 11 is penetrated by one or more openings 34 which are evenly distributed over the circumference and which are expediently elongated axially slot-shaped and can have a width in the order of the wall thickness.
  • these openings 34 are at a distance from or outside of the space 17 and open radially in the region of the opening 6 into the interior of the neck 5 or into the annular space delimited in its axial region by the outer circumference of the body 11, which is on the outer end face is limited by the flange 13.
  • the said annular space or channel section is closed by a valve 35, which lies on the outside of the unit 7, 9 or 11 within the neck 5 or the sealed vessel space of the reservoir 3, radial distance from Has the inner circumference of this vessel space and is axially inward at a distance from the opening 6.
  • the valve 35 has a valve body 36 which is narrowed in the shape of a truncated cone in the shape of a truncated cone and has a valve seat 37 or other valve parts associated therewith.
  • the valve body 36 forms a structural unit with an annular disk-shaped seal 38, which seals the gaps between the vessel space or vessel 3 and the closure unit 7 to the outside in a pressure-tight manner or transmits the tension force of the aforementioned mutual bracing of these units.
  • the seal 38 lies between the outer end face of the neck 5 and the inner end face of the flange 13, wherein it forms a one-piece component 40 according to FIG. 3 with the valve body 36.
  • the valve body 36 has a radially inwardly projecting annular closing part or annular bead 39 over its inner circumference, to which an annular groove 42 is assigned as a valve seat 37 directly in the outer circumference of the housing 11, so that both axially adjacent circumferential surfaces and Ring edges or end faces can form several valve closing surfaces.
  • the valve seat 37 is located directly adjacent to the inner end of the openings 34.
  • the valve body 36 or the closing part 39 is from the Closing position elastically resiliently expandable radially under media pressure, whereby the closing part 39 lifts off the valve seat 37 and the valve passage for the use of the openings 34 with the storage space 4 is opened.
  • the channel section lying in the flow direction between the openings 34 and the valve 35 is delimited on the outer circumference by the inner circumference of the valve body 36.
  • this inner circumference forms a, for example, cylindrical closing surface 41 which, in the closed position, can rest approximately over its entire axial extent in an almost complete manner on the outer circumference of the housing 11 up to the associated end of the openings 34.
  • the neck 5 On its free end face or its contact surface for the seal 38, the neck 5 has, in one piece with a distance between its inner and / or its outer circumference, one or more projections, for example a notched ring 43 with a pointed cross section, which is located in the associated presses in the end face of the seal 38 so that it is correspondingly squeezed in cross section and forms a recess which is completely adapted to the projection 43 and is not provided when the seal is relaxed.
  • one or more projections for example a notched ring 43 with a pointed cross section
  • the seal 38 itself can form a correspondingly projecting, annularly shaped and pressure-elastic projection, such as an end sealing lip 44, which is annular and at a distance from the inner and / or outer circumference of the seal 38, but expediently radially with respect to the notch ring 43 is offset inwards.
  • an end sealing lip 44 which is annular and at a distance from the inner and / or outer circumference of the seal 38, but expediently radially with respect to the notch ring 43 is offset inwards.
  • the valve body 36 is angled into the inner circumference of the seal 38, which in the relaxed state is concavely curved in cross section to the inner end face.
  • the fastening member 14 bears on the outer, annular end face of the flange 13, which also engages over an outer annular collar of the neck 5 on an annular end face facing away from it.
  • the fastening member 14 is shown in front of the position securing or bracing and on the right, whereby it engages behind two axially spaced end ring surfaces of different widths of the neck 5.
  • the valve 21 is only path-dependent and, on the other hand, can only be opened or closed as a function of pressure due to an overpressure in the space 17. If the unit 15 is moved inward, the piston 18 runs with its end face 19 onto a stop 45 of the unit 7, 9, 11, which is formed by an inner annular shoulder in the space 17 or by the inner end of the raceway 16. As a result, the valve sleeve is positively fixed against further movement, while the remaining tappet 23 can be moved further under elastic compression of the sleeve neck, so that the valve seat lifts off the valve body of the valve 21 and this is essentially only opened at the end of the stroke movement of the sealing body 18.
  • valve 26 opens in that the valve body lifts axially from the valve seat. With a small movement of the unit 15, only the valve 26 can thus be opened, while with a larger movement both valves 21, 26 are open at the same time. Both valves 21, 26 are closed upon release from the actuation by the spring 24, which also returns the unit 15 to its initial position, the cuff neck of the piston cuff also having a closing spring for the valve 21 or a closing and Extension spring for the valve 26 forms.
  • the outermost end of the plunger 23 forms an externally reduced connecting or plug-in piece 46 both for the discharge head and for a filling head 50 of a filling device, which is completely removed from the device 1 after filling and replaced by the discharge head.
  • the outlet opening 48 of the outlet channel 20 or a corresponding ventilation channel or the like is the outlet opening 48 of the outlet channel 20 or a corresponding ventilation channel or the like.
  • a stop 49 in the form of an annular shoulder over the outer circumference of the plug 46, which transition to forms the section that delimits the channel section 32.
  • the filling head 50 has a connecting member 51 for tight connection to the outermost end of the housing 9 or the closure 12, this connecting member 51 encompassing the housing 9 outside the memory 3 and the fastening member 14 centering on the outer circumference of the closure 12 and on the outer periphery thereof Sealed face rests.
  • the radially completely inside the connecting member 51 connecting member 52 serves in the same way for the axial plug connection with the connecting piece 46, which also surrounds it approximately centering on the outer circumference, wherein it rests sealingly on one or both end faces 47, 49.
  • Each connector 51, 52 forms a possibly one-piece assembly with a plunger-like control body 53 or 54, which has the associated connector with its inner end forms.
  • the control body 54 like the connecting member 52, is axially displaceable and / or rotatably mounted within the unit 51, 53 in such a way that the intermeshing circumferences of these two units close the associated gap in a pressure-tight manner.
  • one or more axial filling channels 55 are provided which are evenly distributed over the circumference and which are each formed, for example, by a longitudinal groove in the associated circumference and on the open longitudinal side of the groove by the counter circumference are closed that in each case a filling channel 55 is formed which is closed in cross section over the circumference.
  • the filling channel 55 thus opens adjacent to the inner end of the unit 52, 54 into an annular space which is defined by the inner circumference of the unit 51, 53, the outer circumference of the unit 15 and 23 lying radially apart therefrom and on the end face by the end of the unit 52, 54 and this is delimited at a distance from one another by the outer end face of the housing 9.
  • the filling opening 31 is located in this last-mentioned end face, while the inner end face of the units 52, 54 can rest against the stop 49 in a pressure-tight manner and the bottom surface of the connecting member 52 can bear on the end face 47 in a pressure-tight manner.
  • both units 51, 53 and 52, 54 are brought into the described engagement with the device 1 in synchronous axial movement or one after the other, the upright position or the described head position or a corresponding inclined position which is sufficient for this, to transfer the valve 27 into the open position by weight or to reduce its closing forces.
  • the inlet end of the filling channel 55 is connected via a suitable pressure generator, such as a pump, a pressure vessel or the like, and via a control valve to a large-scale media store, not shown, which is a multiple contains the amount of media that the storage space 4 can hold.
  • the tappet 54 is displaced with respect to the tappet 53 and thereby the control unit 8 of the closure for the storage space 4 is moved axially inward, wherein initially only the valve 26 needs to be opened.
  • the annular space adjoining the filling opening 41 forms the end of the filling outlet 57 of the filling channel 55, so that via this medium, which is supplied under excess pressure, it enters the filling opening 31 directly from the outlet 57 and along the channel sections 32 and through the valve 26 and the chamber 25 Openings 34 emerge radially outward from the housing 9.
  • an overpressure builds up on the inner circumference of the still closed valve body 36, which transfers the valve closing part 39 radially outward into the open position, so that the medium now enters the storage space 4 under overpressure in the region of the bottom from the bottom distant zone.
  • the valve 21 is also opened by actuating the tappet 54, so that the line connection between the inlet opening 61 of the inlet channel 29 and the outlet opening 48 is now continuously free for the throughflow and air or gas can escape via the channel 20 from the storage space 4 through the opening 48 into a ventilation channel 56 of the unit 52, 54.
  • the inlet opening 61 is always above the filling level in the storage space 4.
  • the valve 21 can be opened for venting either only depending on the path by actuation via the stop 45 or also depending on the pressure, so that it closes immediately as the filling valve 35 when the pressure drops.
  • the filling channel 55 is recessed over most of its length in the inner circumference 58 of the units 51, 53, and it can also be recessed in the area of the inner end of the unit 52, 54 in its outer circumference 59.
  • the two units 51, 53 and 52, 54 can also form a filling valve 62 which is completely associated with the head 50 and which is very close to or in front of the device 1 before the head 50 is connected or after the filling process and before the head 50 is removed Area of the filling outlet 57 can be closed, so that dripping of medium is completely avoided.
  • the unit 52, 54 can form a movable valve body which, with its outer circumference 59 in the manner of a slide valve, closes the inner end of the filling channel 55 on the inner circumference 58 of the unit 51, 53 before the unit 51, 53 is removed from the counterpart of the device 1 is subtracted.
  • the inner end face of the unit 52, 54 can be moved, for example, approximately up to the inner end face of the unit 51, 53, which rests with seals 60 in a pressure-tight manner against the outer end face of the closure 12.
  • a seal can connect directly to the filling opening 31 and a seal 60 can be located radially outside of it. Corresponding seals can also be provided in the area of the end face 47 or 49.
  • valves 21, 26, 62 can be brought about by appropriate choice of the mutual distances between the stops 45, 49 and the outer end face of the closure 12.
  • a protective gas for example nitrogen, can also be pressed into the storage space 4 via the channel 55 or another channel of the head 50, in order to press out all the air previously present through the channel 20.
  • the discharge conveyor 7 is expediently designed as a self-priming thrust piston pump which, on the return stroke, sucks in medium from the storage space 4 into the space 17 with the pressure-dependent opening of the valve 27 via the inlet duct 29.
  • the filling connection 30 is also suitable for pressure compensation for the storage space 4, provided that its opening forces are adjusted accordingly. If a vacuum is created in the storage space 4 by pumping out the medium, the valve body 36 opens in a pressure-dependent manner and air can flow in from the outside into the storage space 4 via the filling connection 30.
  • valve body 36 With overpressure in the storage space 4, however, the closing forces of the valve 35 are increased accordingly, because the outer circumference of the valve body 36 is exposed to this overpressure. If the valve body 36 is moved into the open position by mechanical actuation or complete removal, the filling connection forms an when the valve 26 is open, i.e. Except in the initial state in any other actuation state, a pressure compensation or ventilation connection for the storage space 4 opened by the manual actuation.

Landscapes

  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
EP95114858A 1994-10-27 1995-09-21 Dispositif distributeur de substances, ainsi que procédé et dispositif de remplissage d'un dispositif distributeur Withdrawn EP0709141A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4438364 1994-10-27
DE4438364A DE4438364A1 (de) 1994-10-27 1994-10-27 Austragvorrichtung für Medien sowie Verfahren und Vorrichtung zur Befüllung einer Austragvorrichtung

Publications (2)

Publication Number Publication Date
EP0709141A2 true EP0709141A2 (fr) 1996-05-01
EP0709141A3 EP0709141A3 (fr) 1997-01-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114858A Withdrawn EP0709141A3 (fr) 1994-10-27 1995-09-21 Dispositif distributeur de substances, ainsi que procédé et dispositif de remplissage d'un dispositif distributeur

Country Status (4)

Country Link
US (1) US5950879A (fr)
EP (1) EP0709141A3 (fr)
JP (1) JPH08217168A (fr)
DE (1) DE4438364A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
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WO2014199098A1 (fr) * 2013-06-14 2014-12-18 Aptar France Sas Distributeur de produit fluide rechargeable par gravite
FR3007007A1 (fr) * 2013-06-14 2014-12-19 Aptar France Sas Reservoir de produit fluide rechargeable.

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EP2932994B1 (fr) 2009-07-30 2017-11-08 Tandem Diabetes Care, Inc. Nouveau joint torique, mécanisme de distribution et système de pompe de perfusion portable qui lui sont associés
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WO2014199098A1 (fr) * 2013-06-14 2014-12-18 Aptar France Sas Distributeur de produit fluide rechargeable par gravite
FR3007005A1 (fr) * 2013-06-14 2014-12-19 Aptar France Sas Reservoir de produit fluide rechargeable par gravite.
FR3007007A1 (fr) * 2013-06-14 2014-12-19 Aptar France Sas Reservoir de produit fluide rechargeable.

Also Published As

Publication number Publication date
EP0709141A3 (fr) 1997-01-08
JPH08217168A (ja) 1996-08-27
DE4438364A1 (de) 1996-05-02
US5950879A (en) 1999-09-14

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