EP0143183A2 - Distributeur de matières actives - Google Patents

Distributeur de matières actives Download PDF

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Publication number
EP0143183A2
EP0143183A2 EP84109706A EP84109706A EP0143183A2 EP 0143183 A2 EP0143183 A2 EP 0143183A2 EP 84109706 A EP84109706 A EP 84109706A EP 84109706 A EP84109706 A EP 84109706A EP 0143183 A2 EP0143183 A2 EP 0143183A2
Authority
EP
European Patent Office
Prior art keywords
piston
pump
cylinder
dispenser
storage space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84109706A
Other languages
German (de)
English (en)
Other versions
EP0143183A3 (en
EP0143183B1 (fr
Inventor
Lothar Graf
Leo Maerte
Thomas Skorka
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
Priority to DE8686105985T priority Critical patent/DE3480057D1/de
Publication of EP0143183A2 publication Critical patent/EP0143183A2/fr
Publication of EP0143183A3 publication Critical patent/EP0143183A3/de
Application granted granted Critical
Publication of EP0143183B1 publication Critical patent/EP0143183B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/76—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston
    • B65D83/765—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston the piston being a follower-piston and the dispensing means comprising a hand-operated pressure device at the opposite part 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—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
    • B05B11/1066—Pump inlet valves
    • B05B11/107—Gate valves; Sliding 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
    • B05B11/01—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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material

Definitions

  • the invention relates to an active substance dispenser with a storage container, a sliding piston which can be displaced therein and which seals the storage space at one end and a piston pump which is provided on the opposite end of the container and is connected on the outlet side to an active substance discharge opening, the pump cylinder receiving a sliding pump piston on the inlet side is connected to the pantry.
  • Known active ingredient dispensers of this type are generally used for pasty active ingredients, for example toothpaste.
  • the known dispensers are not suitable for atomizing, for example, low-viscosity active substances, such as medical therapeutic and prophylactic active substances or the like. They are also relatively difficult to operate and the discharge pressure is relatively low.
  • the invention has for its object to provide an active ingredient dispenser of the type mentioned, in which guidance of the active substance which is as linear as possible from the storage space to the vicinity of the discharge opening, favorable flow conditions and thus high discharge pressures can be achieved, so that the dispenser can also be used for those active substances which are to be atomized during discharge.
  • an active substance dispenser of the type described at the outset according to the invention in that the pump cylinder of the piston pump lies essentially axially parallel to the trailing piston.
  • the pump cylinder is expediently of the type that its end remote from the storage space, only closed by the pump piston and otherwise open end forms the outlet opening of the pump cylinder for the active substance, while the inner end correspondingly forms the inlet opening to the storage space.
  • the pump cylinder is arranged coaxially with the trailing piston and in particular protrudes into the storage space and preferably has a suction nozzle which is also coaxial with the pump piston as the end section projecting furthest into the storage space.
  • the active ingredient is taken over deeply from the storage space by the pump cylinder, so that the active ingredient has to carry out only very slight internal flow movements within the storage space.
  • the suction port is overhung in the storage room.
  • a particularly advantageous development of the subject matter of the invention is that an axially biased outlet valve, mechanically positively opened at the end of the piston stroke, is provided in the conduit path between the pump piston and the discharge opening, the closing part of which is preferably formed by an elastic compression sleeve, the outer end of which is attached to one Piston shaft attached and in particular forms the annular piston with the inner end adjacent to the annular closing part.
  • This makes it possible to put the active substance in the pump cylinder under increased pressure during the pump stroke of the pump piston without the active substance already escaping, after which the active substance compressed in this way is suddenly released and exits at the associated end of the pump cylinder by mechanical opening of the outlet valve.
  • this also makes it possible to design the dispenser in such a way that the active substance inside the dispenser can under no circumstances come into contact with air, which is of great importance for some medicinal active substances.
  • the last-mentioned advantages are further improved in that the pump piston abuts a stop shoulder at the end of the piston stroke and that the piston shaft can be moved beyond the stop position of the pump piston by opening the exhaust valve.
  • the annular closing part of the outlet valve has a valve closing surface which is located on the inner circumferential surface and is associated with the piston skirt, and an abutment surface which is located on the outer circumference and which, when reset Pump piston with prestress sealingly rests on a counter shoulder of the pump cylinder.
  • the outlet valve is mechanically positively closed when the pump piston is reset.
  • the pump cylinder is also hermetically sealed to the storage space when the pump piston is reset.
  • the valve closing pressure of the According to the invention, the outlet valve is higher than the maximum pressure in the storage space, so that under no circumstances can active ingredient escape from the dispenser unintentionally, that is to say without actuating the pump.
  • the trailing piston is cup-shaped to the piston pump open hollow and that the inner cross sections of the trailing piston are essentially exactly adapted to the, in particular stepped tapered, outer shape of the portion of the piston pump protruding into the reservoir, such that this section fills the cavity of the trailing piston when the storage space is empty.
  • the dispenser according to the invention also makes it possible to meter the amount of active substance applied per piston stroke very precisely, even if this amount is very small, for example in the order of a few hundredths of a cubic centimeter.
  • This precise, repeatable metering of the amount of active substance applied with a simple structure of the dispenser is achieved in a further embodiment even when the pump piston towards the end of the return stroke in the manner of a slot control releases a connection opening between the storage space, which can be changed in volume to maintain full filling with the active substance supply quantity, and is sealed in a vacuum-tight manner, and the pump space and if the part of the pump space lying between the pump end position of the pump piston and the connection opening is provided as a metering space whose connecting opening is immersed in this vacuum-tight storage space at least in its release position, the connecting opening preferably being formed by the open end of the pump cylinder, by means of which the pump piston is completely moved out of the pump cylinder towards the end of the return stroke, and in particular a funnel-shaped in
  • the pump chamber can only and only be filled with the active substance during the return stroke of the pump piston with maximum utilization of the resulting negative pressure, which is a prerequisite that a precisely defined, that is precisely metered amount always gets repeatedly into the pump chamber during the return stroke , which is then discharged through the outlet opening during the pump stroke.
  • the metered quantity can be precisely determined with the size of the part of the pump chamber provided as the metering chamber. Nevertheless, this amount can be repeatedly applied in quick succession.
  • this design ensures that the lowest possible flow resistances occur when the active substance is sucked into the pump chamber, the size of the connection opening corresponding to the inner cross section of the pump cylinder, which accommodates a sudden suction of the active substance after the connection opening has been released; due to the funnel-shaped inlet surface, the flow resistances that occur are further reduced.
  • connection opening is preferably closed on part of the return stroke of the pre-suction piston and / or the piston sealing surface of the pre-suction piston is provided at the free end of the intermediate cylinder.
  • a structurally simple embodiment is achieved if the pump piston is arranged fixedly with respect to the intermediate cylinder, in particular approximately coaxially in the intermediate cylinder, and preferably at least one outlet opening to the storage space is provided between the outer circumference of the pump piston and the inner circumference of the intermediate cylinder Achieving favorable flow conditions is expediently greater than that of the connection opening.
  • the design according to the invention also makes it possible to provide an arrangement in which the metered discharge amount can be changed in a precisely defined manner if necessary.
  • This can be achieved in a simple manner, for example, by the volume of the metering chamber being made variable, the end wall of the pump cylinder opposite the pump piston, for example with an outlet sleeve guided in an actuating thread of the cylinder wall of the pump cylinder, being axially adjustable and guided, for example, by self-locking .
  • the pump stroke of the thrust piston pump is limited by the pump piston striking the opposite end wall of the pump cylinder.
  • the pump piston is spring-loaded to the starting position and is limited in the starting position, preferably the pump cylinder being movably mounted with a handle, for example a container cap receiving a return spring and covering the pump.
  • the return spring can also be designed as a resilient element which is integral with at least one of the two components which can be moved relative to one another and in particular can be formed by bulging guide arms of the handle which are loaded with buckling.
  • the pump piston therefore forms a unit that is structurally combined with the storage container and is fixed relative to it, while the cylinder and optionally the pre-suction piston represent the parts that have to be moved by hand during the pump stroke, resulting in a structurally very simple configuration of the dispenser.
  • an outlet valve is designed as a check valve, which preferably has at least one circumference an outlet opening provided with an outlet nipple and, as a valve closing part, a valve stocking elastically surrounding the outlet nipple, the free end of which, for example, forms the outlet opening. This also ensures that the outlet valve closes very quickly and tightly at the end of the active substance discharge or at the beginning of the return stroke and maintains this vacuum-tight seal securely until the metering space is filled again or until the next pump stroke.
  • This advantage is further improved if the design of the dispenser is further simplified if all essential parts of the dispenser are arranged in a common axis and are expediently axially symmetrical; this applies in particular to the pump cylinder, the storage space, the outlet opening, the intermediate cylinder and the handle.
  • the cross section of the dispenser can be round, in particular circular, polygonal or different.
  • an active substance dispenser has a storage container 2, which is designed, for example, as a standing vessel, and a thrust piston pump 1 arranged thereon at the same time as a closure cap, which is provided, for example, on the upper end opposite the standing surface of the storage container 2.
  • the push piston pump 1 of which essential parts or the parts which are fixed in position relative to the storage container 2 are formed integrally therewith, has a cylinder 3 which is movable in the longitudinal direction of the storage container 2 relative to the latter via more than the pump stroke and which has a position fixed on the storage container 2 arranged pump piston 4 is assigned.
  • the cylinder 3 is in turn formed at its free end as a pre-suction piston 5 which is guided in an intermediate cylinder 6 surrounding the pump piston 4 at a distance.
  • This intermediate cylinder 6 forms the most provided end of the neck of the storage container 2, both the inner cross sections of the intermediate cylinder 6 and that of the cylinder 3 being smaller than those of the storage container 2.
  • the intermediate cylinder 6 extends to the associated end wall 7 of the, for example, continuously cylindrical storage container 2 and, with its free end, projects further than the pump piston 4 located in it, which is thus provided entirely within the intermediate cylinder 6.
  • the pumping piston 4 is arranged on a piston-shaped piston shaft 8, as seen in its axial direction, as a result of which four outlet openings 9 are formed between the inside of the storage container 2 and the cylinder space 10 of the intermediate cylinder 6, which lie approximately in the plane of the end wall 7.
  • the priming piston 5 can be moved approximately to the free end of the intermediate cylinder 6 so that the pump piston 4 has been completely moved out of the open end of the cylinder 3 for about the last third of the return stroke, in such a way that its front opening facing the pump piston 4 opens into the cylinder chamber 10 forms open connection opening 11 which can be closed by pump piston 4 in the manner of a slot control.
  • This connection opening 11 is essentially delimited by the narrower end of a funnel or truncated cone-shaped inlet surface 12 for the pump piston 4, the narrower end of which connects directly to the piston race 13 of the cylinder 3 and the other end of which is larger than the piston cross-section;
  • the inlet surface 12 has a taper angle of approximately 90 °.
  • cylindrical piston race 13 limits that part of the pump chamber of the push piston pump 1 which is provided as a metering chamber 15, since the pump piston 4 at least approximately at the end of the pump stroke on the ring shoulder-shaped end face 14 of the piston running surface 13 abuts.
  • the cylinder 3 is structurally or integrally united with an outlet nipple 16 which, with the interposition of an outlet valve 17 designed as a check valve, connects the metering chamber 15 to an outlet opening 18 for the active substance.
  • This line connection 19 is relatively short and essentially rectilinear, decreasing in cross-section to the check valve 17 and widening again between the check valve 17 and the outlet opening 18.
  • the line connection 19 is formed by a first section, which is axially identical to the metering chamber 15 and has a reduced cross section compared to the metering chamber 15, an adjoining, further reduced cross section and likewise lying in the axis of the metering chamber 15, and two or more radially in these opening openings formed in the outlet nipple 16, these outlet openings 20 simultaneously forming the valve openings of the outlet valve 17.
  • the outlet valve 17 has an elastic valve stocking which surrounds the entire length of the outlet nipple 16 and is secured against axial displacement, which surrounds the outlet nipple 16 in the region of the outlet openings 20 lying on its periphery and tightly over the end of the outlet nipple 16 in such a way protrudes that it directly forms with its end the outlet opening 18, the opening cross section of which is therefore essentially equal to the largest cross section of the outlet nipple 16.
  • the cylinder 3 and the outlet nipple 16 are provided on the end wall 23 of a handle 27, which is perpendicular to the central axis of the dispenser, and are formed integrally therewith.
  • This handle 22 has several, in the illustrated embodiment four j, evenly distributed over the circumference, to the dispenser 8 parallel guide arms 24, which surround the storage container 2 on the circumference at a short distance and are provided at their ends with inwardly directed cams 25, which as the return stroke limiting stop 26 is associated with a projecting over the outer circumference of the storage container 2 ring collar.
  • a return spring 27 is provided within the guide arms 24 as a return spring 27 which is supported on the one hand on the inside of the end wall 23 and on the other hand on the stop 26 and surrounds the reservoir 2 over the circumference over part of its length.
  • a return spring 27 is also conceivable to fasten the ends of the guide arms 24 facing away from the end wall 23, for example by one-piece manufacture, to the storage container 2 and to design them with regard to their elasticity and strength so that they themselves act as return springs in such a way that they come out of them during the pump stroke stretched position are arched resiliently outward.
  • the trailing piston 29 is freely movable along its cylinder track with relatively little friction, the storage container 2 being open on the side of the piston 29 remote from the storage space 28 or provided with a pressure compensation opening so that the piston 29 on this side no negative pressure can arise.
  • the storage space 28 including the cylinder space 10, the metering space 15 and the line connection 19 is completely filled with the active ingredient to be metered out and the cylinder 3 is under the force of the return spring 27 at the end of its return stroke. If the cylinder 3 is now moved in the direction of the pump piston 4 counter to the force of the return spring 27, part of the amount of active substance located in the cylinder chamber 10 is first displaced in the direction of the storage chamber 28 until the pump piston 4 along the inlet surface 12 begins has reached the piston track 13 of the metering chamber 15 and thereby closed it; the closing voltage of the exhaust valve 17 is chosen so large that it does not open until this moment. Therefore, the climbing piston is pushed back in this phase and, if it is relatively stuck, loosened.
  • the amount of active substance in the metering chamber 15 is pressurized by the pump piston 4, whereby the outlet valve 17 according to FIG. 2 opens, so that the metered amount of active substance exits via the line connection 19 at the outlet opening 18.
  • the total stroke is, for example, only 5 mm and the storage container 2 of the dispenser shown enlarged in FIGS. 1 to 5 holds, for example, only about four cubic centimeters.
  • the outlet valve 17 closes again automatically due to the elastic tension of the valve closing part 21.
  • the cylinder 3 according to FIG. 3 is moved back to its starting position under the force of the return spring 27 .
  • the pre-suction piston 5 moves back in the intermediate cylinder 6, as is the case for the pump piston 4 and the cylinder 3. Due to the negative pressure that occurs in the intermediate cylinder 6, active substance is sucked into the intermediate cylinder 6 from the storage space 28.
  • the connection opening 11 is suddenly released during the further return stroke movement, the maximum possible negative pressure being reached at this moment by the return stroke movement of the pump piston 4 in the metering chamber 15.
  • connection opening 11 As soon as the connection opening 11 is opened, the active ingredient sucked into the intermediate cylinder 6 is sucked suddenly into the metering chamber 15 with complete filling.
  • the cylinder space 10 thus belongs to the storage space 28, in which the connection opening 11 is completely immersed during the return stroke.
  • the climbing piston 29 is trailed by the underpressure which arises in the storage space 28 by a distance corresponding to the metered quantity, such that the storage space 28 decreases in volume but always remains completely filled.
  • the push piston pump 1a according to FIG. 6 is designed to be removable from the storage container 2a in such a way that it can be refilled with active substance through its container neck 31.
  • the pump piston 4a and the intermediate cylinder 6a are structurally combined with a screw sleeve 7a, which can be detachably screwed onto an external thread of the container neck 31 and forms a vacuum-tight seal.
  • the handle 22a is in this case directly limited in terms of its return stroke with respect to the screw sleeve 7a.
  • the outlet nipple in the embodiment according to FIG. 6 is formed by an outlet sleeve 16a which is provided with an external thread with which it is adjustable in the direction of the pump stroke in an adjusting thread 30 provided in the cylinder wall 13a of the pump cylinder 3a and can be locked by self-locking.
  • This outlet sleeve 16a forms with its inner end the end wall 14a of the metering chamber 15a opposite the pump piston 4a, so that the size of the metering chamber 15a and thus the amount of active ingredient to be metered out can be changed by adjusting the outlet sleeve 16a.
  • the active ingredient dispenser according to the invention is particularly suitable, for example, for the metered delivery of active ingredients for inhalation devices or as a drip dispenser, which can be designed for an exact number of liquid drops to be dispensed per pump stroke. However, it can also be used for other media than drugs.
  • the active substance dispenser according to FIGS. 7 and 8 has as a pump a manually operated piston pump 1b, which is fastened with a gasket 32 with a sleeve-shaped housing part 33 to the end face of the neck 31b of the container 2b by means of a clamping ring and with all parts are aligned with the container 2b.
  • the cylinder 3b On the housing part 33, which is designed in the manner of two coaxially nested sleeves and merges with one another on the outer end face, the cylinder 3b is fastened with its outer end section which engages positively between the two sleeves of the housing part 33 in such a way that it surrounds the inner circumference of the neck 31b with a small gap distance and protrudes relatively deep into the storage space 28b with a suction nozzle 34 forming its inner tapered end.
  • the cylinder 3b forms a piston raceway 13b for the piston 4b approximately in the region of the neck 31b, which is formed by an inner end section of a sleeve-shaped component made of rubber-elastic material.
  • the piston 4b which is widened in the shape of a truncated cone in the direction of the pump stroke and tapered uniformly in its wall thickness, merges in one piece at its rear end into an annular closing part 21b of an outlet valve 17b, which in turn on the side facing away from the piston 4b into a spring that can be shortened by axial pressure Compression sleeve 35 passes over.
  • the compression sleeve 35 forms a flange ring 36 which is formed in one piece with the piston 4b and which is fastened in an end groove of the piston shaft 8b.
  • the compression sleeve 35 is convexly curved on the outside in cross-section, this curvature increasing with compression or shortening of the compression sleeve 35.
  • the sleeve-shaped elastic component is tightly closed between the annular lip-like piston seal 37 provided at the free end of the piston 4b, which is formed directly by the piston and lies closely against the piston raceway 13b, and the fastening of the flange ring 36 in the piston shaft 8b.
  • the piston shaft 8b which forms the associated section of the line connection 19b between the cylinder space 10b and the discharge opening 18b in its interior, consists of two parts, namely an outer sleeve-shaped part 38 and a plunger 39 which extends over part of the length of the sleeve-shaped part 38 thereof The inside or the end facing the container 2b engages, leaving the line connection free.
  • the end groove is provided for receiving the flange ring 36.
  • the plunger 39 has in the area of the closing part 21b an annular collar projecting over its circumference, the end face of which, at an obtuse angle to the suction port 34 and which faces away from the suction port 34, forms one of the two closing surfaces, namely the closing surface 40 of the outlet valve 17b.
  • the closing part 21b forms on its inner circumference the other valve closing surface 41, which is adapted to the closing surface 40 and which, when the pump is in the initial position, bears against the closing surface 40 with a relatively high closing pressure under the force of the compression sleeve 35 serving as a valve closing spring.
  • the inner sleeve 6b of the housing part 33 which engages in the rear open end of the cylinder 3b, forms, with its free end lying in the cylinder 3b, a counter shoulder 26b for an annular shoulder-shaped stop surface 22 provided on the outer circumference of the closing part 21b, which in cross section is frustoconical in shape to the suction nozzle 34 is expanded.
  • the abutment surface 42 runs onto the counter shoulder 26b, as a result of which the compression sleeve 35 is slightly stretched and the closing part 21b of the outlet valve 17b is inevitably both axially pressed against the closing surface 40 and also biased radially to the axis of the outlet valve 17b that an extremely tight and secure closure of the outlet valve 17b is guaranteed.
  • the cylinder 3b is structurally combined with the housing part 33 so that when the piston 4b is in the initial position, an annular space 43 is provided on the outside thereof, which is located between the piston seal 37 and the valve-like seal which is created by the abutment of the counter shoulder 26b on the stop surface 42 is formed.
  • the piston raceway 13b merges into a stop shoulder 14b projecting inwardly in an annular manner, onto which the free end face of the piston 4b runs at the end of the pump stroke according to FIG. 8.
  • the piston shaft 8b can be moved a small distance in the direction of the pump stroke, so that the closing surface 40 then lifts from the valve closing surface 41 and an annular one between these surfaces Passage opening 20b of the outlet valve 17b is released.
  • the compression sleeve 35 is elastically compressed and thereby shortened.
  • a sleeve-shaped connecting nipple 16b is placed with a plug connection, which forms an integral component with a cap-like handle 22b surrounding it and is arranged with an outer sleeve on the end wall 23b thereof.
  • the discharge opening 18b designed as an atomizer opening is provided.
  • the trailing piston 29b has an outer piston ring with two annular, sealed lips provided at both ends and a fitting sleeve 45 located therein, which with its open end facing the piston pump 1b merges in one piece and tightly into the piston ring 29b.
  • the inner cross sections of the fitting sleeve 45 lying axially aligned with the section of the piston pump 1b projecting over the end wall 7b of the container 2b into the storage space 28b, the cup sleeve 45 being closed at its end remote from the piston pump 1b and projecting beyond the associated end of the piston ring are so adapted to the outer shape of the above-mentioned section of the piston pump 1b that in the end position of the trailing piston 29b associated with the emptied storage space 28b, the projecting section of the piston pump 1b fills the interior of the adapter sleeve 45 almost completely without gaps and the free end of the suction port 34 abuts the bottom wall of the fitting sleeve 45. In this position, the associated end
  • the product to be atomized that is to say the active substance, does not come into contact with oxygen before the discharge, since at no point in time during the application is there a connecting channel between the container and the outside air.
  • the atomization or discharge can also take place in any position of the dispenser, for example in an upside-down position, since active substance is always present on the suction nozzle 34.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
EP84109706A 1983-10-28 1984-08-15 Distributeur de matières actives Expired EP0143183B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8686105985T DE3480057D1 (en) 1983-10-28 1984-08-15 Fluid dispenser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3339180 1983-10-28
DE3339180A DE3339180C2 (de) 1983-10-28 1983-10-28 Austragvorrichtung für Medien

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP86105985.5 Division-Into 1986-04-30

Publications (3)

Publication Number Publication Date
EP0143183A2 true EP0143183A2 (fr) 1985-06-05
EP0143183A3 EP0143183A3 (en) 1986-08-27
EP0143183B1 EP0143183B1 (fr) 1988-06-08

Family

ID=6212988

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84109706A Expired EP0143183B1 (fr) 1983-10-28 1984-08-15 Distributeur de matières actives
EP86105985A Expired EP0201809B1 (fr) 1983-10-28 1984-08-15 Distributeur de fluide

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP86105985A Expired EP0201809B1 (fr) 1983-10-28 1984-08-15 Distributeur de fluide

Country Status (4)

Country Link
US (2) US4694977A (fr)
EP (2) EP0143183B1 (fr)
JP (1) JPH0672788B2 (fr)
DE (3) DE3339180C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662352A1 (fr) * 1994-01-07 1995-07-12 S O F A B Société Anonyme Dispositif de conditionnement et de distribution d'un produit liquide
FR2718109A1 (fr) * 1994-03-30 1995-10-06 Reboul Smt Conditionnement rechargeable et sa cartouche.

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3530486A1 (de) * 1985-08-27 1987-03-05 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer fliessfaehige medien
FR2593142B1 (fr) * 1986-01-17 1988-12-30 Oreal Dispositif distributeur doseur.
JPH0520982Y2 (fr) * 1986-07-07 1993-05-31
GB2196116B (en) * 1986-10-07 1990-08-15 Weston Terence E Apparatus for chemical analysis.
US4854484A (en) * 1987-01-28 1989-08-08 Chesebrough-Pond's Inc. Viscous product dispenser
US4809878A (en) * 1987-01-28 1989-03-07 Chesebrough-Pond's Inc. Pump dispenser for viscous fluids
EP0373237A1 (fr) * 1988-12-13 1990-06-20 Siemens Aktiengesellschaft Dispositif d'inhalateur de poche
DE3914995A1 (de) * 1989-05-08 1991-01-17 Peter Gartner Spruehdose/flasche mit integrierter pumpvorrichtung
JPH0317930U (fr) * 1989-07-05 1991-02-21
FR2668119B2 (fr) * 1990-10-18 1992-12-31 Valois Procede de conditionnement sous vide en distributeurs a enveloppe rigide et distributeurs correspondants.
CA2027786C (fr) * 1989-10-31 1997-01-28 Koichi Sugita Contenant muni d'une pompe
EP0446513B1 (fr) * 1990-03-16 1994-11-02 Kabushiki Kaisha Top Pompe
SG45171A1 (en) * 1990-03-21 1998-01-16 Boehringer Ingelheim Int Atomising devices and methods
ATE137142T1 (de) * 1990-08-31 1996-05-15 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für medien
IL100224A (en) * 1990-12-04 1994-10-21 Dmw Tech Ltd Spray nozzle
ES2083726T3 (es) * 1990-12-04 1996-04-16 Dmw Tech Ltd Conjunto de boquilla para evitar el reflujo.
DE4110303A1 (de) * 1991-03-28 1992-10-01 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung fuer medien
EP0531257A1 (fr) * 1991-09-05 1993-03-10 Ciba-Geigy Ag Méthode et dispositif pour contenir et administrer une dispersion contenant des peptides
WO1993010852A1 (fr) * 1991-12-02 1993-06-10 Self-Instill & Co., Inc. Dispositif d'application d'un medicament sur l'×il
US5267986A (en) 1992-04-06 1993-12-07 Self-Instill & Co., Inc. Cartridge for applying medicament to an eye from a dispenser
EP0686597A1 (fr) * 1994-06-09 1995-12-13 Wilhelm A. Keller Dispositif avec un récipient et une pompe pour l'extraction par le vide du contenu
US5435461A (en) * 1994-08-03 1995-07-25 Hewlett-Packard Company Cartridge for dispensing toner concentrate
FR2725247B1 (fr) * 1994-10-03 1996-12-20 Py Daniel C Pompe a fluide sans volume mort
US5970974A (en) * 1995-03-14 1999-10-26 Siemens Aktiengesellschaft Dosating unit for an ultrasonic atomizer device
EP0814860B1 (fr) * 1995-03-14 1999-11-03 Siemens Aktiengesellschaft Atomiseur a ultrasons pourvu d'une unite de dosage precis amovible
FR2731992B1 (fr) * 1995-03-21 1997-04-30 Oreal Distributeur de produit liquide ou pateux utilisable notamment en cosmetique
DE19536902A1 (de) * 1995-10-04 1997-04-10 Boehringer Ingelheim Int Vorrichtung zur Hochdruckerzeugung in einem Fluid in Miniaturausführung
US5749500A (en) * 1996-04-23 1998-05-12 Kraus; Joey Liquid retrieving adaptor for cylindrical containers
AUPO012196A0 (en) * 1996-05-28 1996-06-20 N.J. Phillips Pty. Limited An applicator
AU710557B2 (en) * 1996-05-28 1999-09-23 N.J. Phillips Pty. Limited An applicator
CH692112A5 (de) * 1997-08-21 2002-02-15 Pack Part Gmbh Vorrichtung zur portionenweisen Abgabe eines hochviskosen Füllguts.
US5855322A (en) * 1997-09-10 1999-01-05 Py; Daniel System and method for one-way spray aerosol tip
DE19739990A1 (de) * 1997-09-11 1999-03-18 Pfeiffer Erich Gmbh & Co Kg Spender für Medien
DE19739989A1 (de) 1997-09-11 1999-03-18 Pfeiffer Erich Gmbh & Co Kg Spender für Medien
DE19741957A1 (de) * 1997-09-23 1999-03-25 Wischerath Josef Gmbh Co Kg Verfahren zum Befüllen eines Spenders und Spender
US6033384A (en) 1997-12-18 2000-03-07 Py; Daniel One-way actuation release mechanism for a system for applying medicament
DE29811242U1 (de) * 1998-06-24 1999-11-04 Fritz Albert Riegler GmbH & Co. KG, 64367 Mühltal Applikations-Vorrichtung für keimfreie Fluide
EP1020233A1 (fr) * 1999-01-13 2000-07-19 The Procter & Gamble Company Système de dosage et de distribution
US6302101B1 (en) 1999-12-14 2001-10-16 Daniel Py System and method for application of medicament into the nasal passage
DE50212754D1 (de) 2001-09-21 2008-10-23 Erich Pfeffer Gmbh Ing Dosiervorrichtung mit einer Pumpvorrichtung
US20050127107A1 (en) * 2001-09-21 2005-06-16 Pierre Mbonyumuhire Dosing device with a medium reservoir and a pump device
US7645300B2 (en) 2004-02-02 2010-01-12 Visiogen, Inc. Injector for intraocular lens system
USD537344S1 (en) 2005-07-08 2007-02-27 S.C. Johnson & Son, Inc. Applicator
US7520406B2 (en) * 2005-07-08 2009-04-21 S. C. Johnson & Son, Inc. Device for dispensing a controlled dose of a flowable material
USD539147S1 (en) 2005-07-08 2007-03-27 S.C. Johnson & Son, Inc. Applicator refill
USD587584S1 (en) 2006-02-28 2009-03-03 S.C. Johnson & Son, Inc. Applicator refill
USD592513S1 (en) 2006-02-28 2009-05-19 S.C. Johnson & Son, Inc. Applicator
US7434602B2 (en) * 2006-08-03 2008-10-14 University Of Medicine & Dentistry Of New Jersey Drip chamber dropper bottle
AU315134S (en) 2006-11-29 2007-07-11 Johnson & Son Inc S C Applicator
USD603274S1 (en) * 2007-01-31 2009-11-03 Sabritas, S. De R.L. De C.V. Food container
US8210167B2 (en) * 2007-03-02 2012-07-03 Corbco, Inc. Manually operated monodose nasal sprayer
US20080210228A1 (en) * 2007-03-02 2008-09-04 Corbco, Inc. Monodose nasal sprayer
SG182139A1 (en) * 2007-05-30 2012-07-30 Glaxo Group Ltd Fluid dispenser
USD588925S1 (en) 2008-04-02 2009-03-24 Mary Kay Inc. Container
USD588916S1 (en) 2008-04-02 2009-03-24 Mary Kay Inc. Container
IT1393959B1 (it) 2009-04-30 2012-05-17 Lumson Spa Dispositivo di erogazione di sostanze fluide racchiuse a tenuta in un sacchetto a deformazione guidata
IT1395126B1 (it) 2009-07-30 2012-09-05 Lumson Spa "contenitore perfezionato associabile a pompe airless e metodo per la sua realizzazione"
IT1395730B1 (it) 2009-07-31 2012-10-19 Lumson Spa "contenitore associabile a pompe airless e metodo per la sua realizzazione"
US8408427B2 (en) * 2009-09-07 2013-04-02 Mk International Pty Ltd Single dose nasal spray pump
US20120193377A1 (en) * 2009-09-07 2012-08-02 Mk International Pty Ltd Nasal spray pump
DE102009040783B4 (de) * 2009-09-09 2012-04-26 F. Holzer Gmbh Dosiervorrichtung zur dosierten Ausgabe von Flüssigpräparaten, Verfahren zur Befüllung sowie Verwendung einer erfindungsgemäßen Dosiervorrichtung
US8950394B2 (en) 2010-01-12 2015-02-10 Dance Biopharm Inc. Preservative-free single dose inhaler systems
US20130269684A1 (en) 2012-04-16 2013-10-17 Dance Pharmaceuticals, Inc. Methods and systems for supplying aerosolization devices with liquid medicaments
IT1397891B1 (it) * 2010-01-15 2013-02-04 Lumson Spa Contenitore decorato associabile a pompe airless e metodo per la sua realizzazione.
IT1398945B1 (it) 2010-03-17 2013-03-28 Lumson Spa Metodo per la realizzazione di un contenitore da utilizzare con una pompa ermetica.
FR2978431B1 (fr) * 2011-07-25 2013-08-23 Valois Sas Distributeur de produit fluide
BE1021623B1 (fr) * 2013-12-20 2015-12-21 Reload Labs Vaporisateur rechargeable
DE202018002072U1 (de) * 2018-04-24 2019-07-25 Schwan-Stabilo Cosmetics Gmbh & Co. Kg Gerät zum Auftragen einer viskosen Substanz
EP4613387A3 (fr) 2018-09-19 2025-11-19 PRC-Desoto International, Inc. Ensembles tête de piston expansible pour pistolets de distribution de produit d'étanchéité
EP4492017A1 (fr) * 2023-07-13 2025-01-15 Brill Engines, S.L. Procédé et système de distribution d'une dose d'un produit liquide ou pâteux occupant une enceinte de stockage de volume variable dans un récipient

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1302372U (fr) *
FR600732A (fr) * 1924-10-11 1926-02-13 Emballage commercial pour matières pâteuses
US1628624A (en) * 1924-10-27 1927-05-10 Jr Frank E Liverance Grease gun
US2001568A (en) * 1931-09-17 1935-05-14 Lubrication Corp Lubricating device
GB419506A (en) * 1933-06-27 1934-11-13 Lubrication Corp Improvements in or relating to lubricating devices, such as grease-guns and the like
US2299450A (en) * 1940-03-13 1942-10-20 Alfred Anderson Pressure oilcan
US2556180A (en) * 1945-08-31 1951-06-12 Frederick M Turnbull Swivel intake for dispensing pumps
US3240430A (en) * 1963-03-19 1966-03-15 Glen Gardner Corp Pressure ejection attachment for pressure dispensers
US3361305A (en) * 1966-06-27 1968-01-02 Walter B. Spatz Dispenser for fluent masses
DE1302372C2 (de) 1967-01-17 1978-06-08 Pfeiffer Zerstäuber-Vertriebsgesellschaft mbH & Co KG, 7760 Radolfzell In einem gefaess eingebaute einfachwirkende handbetaetigte schubkolbenpumpe
US3452905A (en) * 1968-02-16 1969-07-01 Leeds & Micallef Self-sealing leak-proof pump
DK125729B (da) * 1970-03-19 1973-04-30 Broen Armatur As Doseringsapparat for væsker.
JPS5119914Y2 (fr) * 1971-03-30 1976-05-25
JPS5129820U (fr) * 1974-08-28 1976-03-04
JPS5132660A (en) * 1974-09-14 1976-03-19 Takenaka Electronic Ind Isobutsutai no nagasasokuteisochi
US4010874A (en) * 1975-06-26 1977-03-08 Wolf Steiman Pump for hand-held dispensers
DE2611644A1 (de) * 1976-03-19 1977-09-29 Henkel & Cie Gmbh Behaelter fuer kosmetika
NL179791C (nl) * 1977-05-12 1986-11-17 Yoshino Kogyosho Co Ltd Zowel rechtop als in omgekeerde stand te gebruiken verstuiver.
FR2393279A1 (fr) * 1977-06-03 1978-12-29 Normos Norbert Dispositif de prelevement de doses precises et constantes de liquide
US4147282A (en) * 1977-06-06 1979-04-03 Sidney Levy Vacuum actuated pressurized fluid dispenser
DE2741803C2 (de) * 1977-09-16 1984-10-04 Wilhelm Hedrich Vakuumanlagen GmbH und Co KG, 6332 Ehringshausen Vorrichtung zum Fördern und/oder Dosieren flüssiger bis hochviskoser Medien
JPS567247Y2 (fr) * 1977-10-11 1981-02-17
JPS54104987A (en) * 1978-02-02 1979-08-17 Fuji Industries Co Ltd Container
IT1092596B (it) * 1978-02-09 1985-07-12 Ruscitti Tommaso Pompetta a mano per dispensare liquidi micronizzati a pressione prestabilita
US4322020A (en) * 1978-05-02 1982-03-30 Raymond Stone Invertible pump sprayer
IT1110119B (it) * 1978-05-10 1985-12-23 Yamamoto Soichiro Dispositivo erogatore di dentifricio e contenitore di dentifricio per esso
JPS5538783U (fr) * 1978-09-07 1980-03-12
DE2901717A1 (de) * 1979-01-17 1980-07-31 Joachim Czech Spender fuer pastoese produkte
USRE31408E (en) * 1979-01-17 1983-10-11 Joachim Czech Dispenser for paste-like products with a manually actuatable piston
JPS5621224A (en) * 1979-07-28 1981-02-27 Mitsubishi Electric Corp Character input unit
US4252507A (en) * 1979-09-10 1981-02-24 Seaquist Valve Company Hand-actuatable pump assembly
JPS6016362B2 (ja) * 1980-08-12 1985-04-25 旭硝子株式会社 四弗化硫黄の製造方法
JPS56106794A (en) * 1979-12-31 1981-08-25 Gooda Jiyooji Distributing device
JPS6040445Y2 (ja) * 1980-01-18 1985-12-05 株式会社吉野工業所 クリ−ム状物押し出し容器
JPS6227376Y2 (fr) * 1980-08-04 1987-07-14
US4485943A (en) * 1982-03-08 1984-12-04 Joachim Czech Dispenser for liquids or pasty products
DE8222355U1 (de) * 1982-08-06 1982-11-18 Normos, geb. Socol, Anny, 92400 Courbevoie Verteiler fuer viskose Produkte

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662352A1 (fr) * 1994-01-07 1995-07-12 S O F A B Société Anonyme Dispositif de conditionnement et de distribution d'un produit liquide
FR2714892A1 (fr) * 1994-01-07 1995-07-13 Sofab Dispositif de conditionnement et de distribution d'un produit liquide.
FR2718109A1 (fr) * 1994-03-30 1995-10-06 Reboul Smt Conditionnement rechargeable et sa cartouche.
WO1995026832A1 (fr) * 1994-03-30 1995-10-12 Reboul Smt Conditionnement rechargeable et sa cartouche

Also Published As

Publication number Publication date
DE3480057D1 (en) 1989-11-16
EP0143183A3 (en) 1986-08-27
JPS60111925A (ja) 1985-06-18
EP0201809A1 (fr) 1986-11-20
EP0143183B1 (fr) 1988-06-08
DE3471912D1 (en) 1988-07-14
DE3339180A1 (de) 1985-05-09
JPH0672788B2 (ja) 1994-09-14
US4694977A (en) 1987-09-22
DE3339180C2 (de) 1993-10-14
EP0201809B1 (fr) 1989-10-11
US4944430A (en) 1990-07-31

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