EP0145908A1 - Récipient pour matériaux pulvérisables avec pompe à piston - Google Patents

Récipient pour matériaux pulvérisables avec pompe à piston Download PDF

Info

Publication number
EP0145908A1
EP0145908A1 EP84113043A EP84113043A EP0145908A1 EP 0145908 A1 EP0145908 A1 EP 0145908A1 EP 84113043 A EP84113043 A EP 84113043A EP 84113043 A EP84113043 A EP 84113043A EP 0145908 A1 EP0145908 A1 EP 0145908A1
Authority
EP
European Patent Office
Prior art keywords
container
pump
piston
gas
container according
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Withdrawn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
EP84113043A
Other languages
German (de)
English (en)
Inventor
Rüdiger Belau
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.)
Leonhard Fischer & Co GmbH
Original Assignee
Leonhard Fischer & Co 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 Leonhard Fischer & Co GmbH filed Critical Leonhard Fischer & Co GmbH
Publication of EP0145908A1 publication Critical patent/EP0145908A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B05B11/0041—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 without contact of the fluid remaining in the container with the atmospheric air
    • B05B11/00411—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 without contact of the fluid remaining in the container with the atmospheric air the means being an inert gas
    • 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 container for sprayable media with a piston pump attached to the container, the discharge side of which is connected to a spray head containing a spray nozzle and the suction side of which is connected to a riser led into the interior of the container, and the pump chamber associated with the pump piston via a valve with the riser is connectable.
  • aerosol containers represent a form of packaging and dispensing of sprayable or atomizable media.
  • the containers which are sealed in a pressure-tight manner, contain the mostly liquid active substance in which a gaseous propellant is contained medium is more or less completely solved.
  • a valve By actuating a valve via a spray head, a mixture of active ingredient and propellant emerges through a spray nozzle.
  • the use of such aerosol containers is usually limited to those substances in which the simultaneous leakage of the propellant can be accepted. For example, this is not the case with numerous pharmaceutical preparations, such as wound sprays, throat sprays or the like.
  • piston pumps As the dispensing device.
  • a pump arrangement is known (DE-AS 1 290 043). It works according to the double-piston principle, in which when the first piston is actuated by hand for dispensing purposes, the second piston covers a longer stroke distance due to its smaller piston area and thereby opens the pressure-side valve so that the medium can escape under the pressure of the first piston, for example via a spray nozzle .
  • Containers provided with pumps have the disadvantage that only those substances can be absorbed which can be in constant air contact without damage.
  • Sensitive substances such as perfumes or pharmaceuticals, which react with oxygen and lose their effect or, in the case of perfumes, lose their fragrance, are not suitable for picking up and: Dispensing in containers that are equipped with dispensing pumps.
  • the invention is therefore based on the object of providing a container with a piston pump as the dispensing device, with which media which are sensitive to atmospheric oxygen and can also be absorbed and atomized without propellant gas content can be atomized.
  • the pump housing is attached to the container in a gas-tight manner, a chemically inactive gas which is not or only slightly soluble in the medium is filled under pressure in the container and the pump chamber and the gas region in the interior of the container are constantly sealed to the outside.
  • the pump is a self-contained system that does not experience any ventilation.
  • the gas pressure cushion which is built up in the volume of the interior of the container not occupied by the active ingredient, should be retained even after a long period of inactivity. It ensures that even when the container is emptied, there is always a slight overpressure, or at least no appreciable underpressure, which under certain circumstances would lead to the ineffectiveness of the piston pump function. It must therefore be ensured that the gas introduced under pressure can neither escape through the connection between the pump and the container nor through the pump itself, neither during pump operation nor in the idle state.
  • the pump is expediently designed in such a way that fumigation can take place as soon as the preferably liquid active substance has been introduced.
  • Nitrogen is used as the preferred gas.
  • other inert gases are conceivable.
  • the gas pressure is barely more than 2 bar, which is considerably lower than with conventional aerosol containers.
  • the simplest method of use is to inject a compressed gas into the remaining gas space inside the container. This does not remove the previously existing ventilation or oxygen content. However, it can be used in many Cases are accepted, for example with perfumes. If, on the other hand, a particularly low-oxygen or oxygen-free gas filling is sought in the container, this can also be easily achieved with the invention. With the help of conventional filling processes, the proportion of oxygen can be greatly reduced, for example by evacuation or flushing, before the pressure cushion is built up.
  • the pressure cushion in the container does not serve to discharge the medium or to atomize it via a spray or atomizer nozzle.
  • the pressure cushion only serves to avoid excessive vacuum in the container due to the gas-tight connection between the pump and the container.
  • the pump piston is sealingly guided in the pump housing and the pump housing bears against a sealing surface of an attachment part, which in turn is sealingly connected to the container.
  • the attachment part can, for example, be a molded plastic part, which can be sealingly attached to the container by means of a sealing ring, which is, for example, a glass bottle.
  • the attachment part has a sealing surface, which is approximately formed by a sealing ring against which the pump housing lies in a sealing manner.
  • a further embodiment of the invention provides that the pump piston or the pump piston rod cooperates sealingly with a sealing section of the attachment part when it is in the top dead center position.
  • the active surface of the piston facing away from the pump chamber must be ventilated in order to avoid a negative pressure and thus a more difficult actuation of the pump piston.
  • the further seal ensures that the gas under pressure cannot escape from the container into the open or that air does not take the opposite route into the container.
  • the invention is suitable for all piston pumps which are suitable in principle for the delivery and dispensing of atomizable media.
  • a particularly advantageous embodiment of the invention provides in this connection that the pressure-side valve is formed by a rod of a second piston, which extends into a bore in the pump piston rod and cooperates with a sealing surface at its end with a valve seat in the bore, the second Piston is sealingly arranged in a cylinder sleeve, the outside of which has an outwardly facing annular sealing surface which forms the valve on the suction side with a valve seat of the pump housing.
  • the second piston has a lesser effect facing the pump chamber area, so that when the pump piston is actuated it travels a larger distance and thereby opens the pressure-side valve.
  • the pressure in the pump chamber when the pump piston is actuated closes the suction-side valve so that the medium can be discharged from the pump chamber.
  • the second piston is spring-loaded in the pressure direction, so that it itself and the pump piston are moved back in the pressure direction when the pump piston is not actuated, as a result of which the pump chamber is refilled with medium when the suction-side valve is now open.
  • Such a construction of a piston pump also has the advantage that; a slight fumigation can be carried out.
  • the pressure-side valve can be opened with the help of a needle, for example.
  • the gas flows through the hollow piston rod into the pump chamber and from there via the annular space between the cylinder sleeve and the pump housing and the riser pipe into the interior of the container.
  • the suction-side valve is designed so that it lets the gas flow through. The suction-side valve therefore only acts hydraulically.
  • the last-mentioned embodiment finally has the advantage that even when the container is kept overhead, a single dispensing is possible by actuating the pump piston. A further delivery is then no longer possible because the suction valve no longer closes when the pump piston is actuated. As I said, it only works hydraulically. However, an outflow of the medium is prevented.
  • the single figure shows a section through a pump arrangement according to the invention.
  • an attachment part 11 for example a molded plastic part
  • the attachment part has a radial flange 13, against the underside of which the sealing ring 12 bears.
  • the outside of the sealing ring lies on the jacket of the cap 10.
  • a cylindrical part 14 of the attachment part 11 extends from the opening of the cap 10 upwards.
  • an annular web 15 holds a cylindrical section 16 which is arranged coaxially with the outer cylindrical section 14.
  • a pump housing 17 which consists of a plurality of cylindrical / stepped sections, extends with an upper section 18 sealingly through the opening of the sealing ring 12 into the cylindrical section 14 of the attachment part 11.
  • a conically widening section 19 of the section 18 of the pump housing 17 lies with it its end face against a sealing ring 20 which bears against the underside of the annular web 15 and is suitably received by the annular space between the cylindrical sections 14 and 16.
  • the pump housing is inserted from below into the cylindrical section 14 of the attachment part 11, the conical section 19 sliding over the projections 21 and snapping behind the projections 21, the distance between the projections 21 and the sealing ring 20 being chosen such that the conical section 19 bears against the sealing ring 20 under tension.
  • a pump piston 22 is sealed in axially spaced sections inside the section 18 of the pump housing 17 guided.
  • the piston rod 23, which is formed in one piece with the pump piston 22, is guided upward through the cylindrical section 16 with a small radial distance therefrom. It has a through-hole which is connected in a known manner to the channel of a spray head 25 which is frictionally attached to the upper end of the rod 23.
  • the spray head which is also made of plastic material, contains a spray nozzle 26 in a known manner.
  • a spray head overcap 27 made of sheet metal with an opening 28 for the spray nozzle 26 is attached to the spray head 25.
  • a conical sealing surface 29 is formed, which cooperates sealingly with a slightly beveled section inside the cylindrical section 16 when the piston 22 is in the position shown in the figure.
  • a cylindrical section 30 of the pump housing 17 With a smaller inside and outside diameter. It receives a cylinder sleeve 31 which forms a radial gap to the inside of the section 30.
  • a sealing lip 32 is formed on the outside of the cylinder sleeve 31, the sealing surface 33 pointing downward being spherical. It acts together with a conical sealing surface 34 at the transition between the cylindrical sections 18 and 30.
  • a second piston 35 is arranged in the sleeve 31 and has an outwardly pointing sealing lip 36 which cooperates in a sealing manner with the inner bore of the sleeve 31.
  • the sealing lip 36 faces upwards. It therefore experiences greater resistance when the piston 35 moves upward relative to the cylinder sleeve 31 than when the movement is in the opposite direction. Upward movement of the cylinder sleeve 31 is limited by a small annular bead 37 on the inside of the cylindrical section 18.
  • a helical compression spring attached, the other end of which rests against the closed lower end 40 of the pump housing 17.
  • the section 30 merges via a conical intermediate section into a section 41 which is again smaller in outer and inner diameter.
  • the bottom of the section 41 is drawn cylindrically inwards for the sealing reception of a riser pipe 42 which is connected to the interior of the pump housing 17 via an opening 43a.
  • a further section 43 of the smaller piston 35 extends upward above the sealing lip 36.
  • a section with reduced diameter following the piston section 43 forms a valve rod 44 which ends in a conical tip 45.
  • the cone tip works with a conical seat 46 in the bore 24 together.
  • Cone tip 45 and cone seat 46 form the pressure-side valve of the double piston pump shown.
  • the pump chamber 47 is delimited by the two pistons 22 and 35, by the piston section 43 and by the cylinder sleeve and the cylindrical section 18 of the pump housing 17.
  • the arrangement shown is connected in a gastight manner to a container, for example to the neck of a glass bottle, after the container has previously been filled with a preferably liquid active substance.
  • the container is not completely filled with active ingredient, rather an unfilled volume fraction of 10 to 20% remains. Air therefore remains in this.
  • An inert gas for example nitrogen, is then preferably introduced via the arrangement shown.
  • the suction-side valve which is formed by the sealing lip 32 and the valve seat 34, produces a hydraulic seal, but does not work under pneumatic pressure conditions.
  • the compressed gas can therefore also flow unhindered into the lower part of the pump housing 17 and reach the container via the riser pipe 42. With the container in the normal position, the gas collects in the upper area. If a maximum pressure of 2 bar is reached, the pressurization is carried out completed and the pressure-side valve, formed by cone tip 45 and cone seat 46 closes, so that now the pressurized gas inside the container can not get outside.
  • the hydraulic pressure in the pump chamber 47 causes the cylinder sleeve 31 to be moved downward. As a result, the sealing lip 32 rests against the valve seat 34 and prevents the medium from flowing back out of the pump chamber 47. Because of the pressure now prevailing in the pump chamber 47, the smaller piston 35 is moved a greater distance than the larger piston 22. In this way, the pressure-side valve is opened. The cone tip 45 lifts off the cone seat 46. The medium can desecrate under pressure via the spray nozzle 26. If the pressure in the pump chamber 47 has been reduced sufficiently, the compression spring 39 closes the pressure-side valve again. This process can be repeated until a lower shoulder 48 of the spray head 25 strikes against an upper shoulder 49 of the attachment part 11.
  • the distance between the shoulders 48, 49 limits the maximum dispensing amount when the spray head 25 is actuated. This amount can be dispensed in a single jet if the pressure is sufficiently large and constant. In the event of a weaker actuation or an interruption, the delivery takes place accordingly in individual strokes.
  • the volume in the pump chamber 47 increases in a known manner, so that the active substance flows in via the riser pipe 42.
  • the gas cushion in the container ensures that the interior of the container does not experience a negative pressure or does not fall below a certain negative pressure, since otherwise no more or insufficient active substance flows in via the riser pipe 47.
  • the gas which is preferably chemically inactive, does not mix with the active substance and is therefore used exclusively to fill the gas volume inside the container which increases when emptied, and therefore does not escape with the active substance.
  • the container can easily be held upside down without any active substance flowing out.
  • the spray head 25 When the spray head 25 is actuated in an overhead position, the amount of active substance in the pump chamber 47 can still be discharged. If the stops 48, 49 lie against each other, the pressure in the pump chamber 47 is reduced and the pressure-side valve closes while the suction-side valve opens, so that further medium cannot escape regardless of whether the spray head 25 is actuated again or not.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)
EP84113043A 1983-11-24 1984-10-30 Récipient pour matériaux pulvérisables avec pompe à piston Withdrawn EP0145908A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833342513 DE3342513A1 (de) 1983-11-24 1983-11-24 Behaelter fuer verspruehbare medien mit kolbenpumpe
DE3342513 1983-11-24

Publications (1)

Publication Number Publication Date
EP0145908A1 true EP0145908A1 (fr) 1985-06-26

Family

ID=6215160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113043A Withdrawn EP0145908A1 (fr) 1983-11-24 1984-10-30 Récipient pour matériaux pulvérisables avec pompe à piston

Country Status (3)

Country Link
EP (1) EP0145908A1 (fr)
JP (1) JPS60197261A (fr)
DE (1) DE3342513A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664182A1 (fr) * 1990-07-09 1992-01-10 Valois Pompe-doseuse pour pulverisateur sous pression avec securite intrinseque.
EP0599186A1 (fr) * 1992-11-25 1994-06-01 Emson Incorporated Pompe avec joint d'étanchéité glissant
DE19832824A1 (de) * 1998-07-21 2000-02-10 Coster Tecnologie Speciali Spa Abgabepumpe für die Abgabe von Flüssigkeiten, Gelen oder dgl. Medien
CN107814079A (zh) * 2017-11-28 2018-03-20 中山市华宝勒生活用品实业有限公司 一种准确定量的喷液盖

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107499694A (zh) * 2017-09-19 2017-12-22 江阴和盛塑胶有限公司 一种化妆品用喷雾瓶
CN107499695A (zh) * 2017-09-19 2017-12-22 江阴和盛塑胶有限公司 一种瓶子上用的喷雾头结构
DE102021113705A1 (de) 2021-01-28 2022-07-28 Achim Heyne Behälter mit Kappe und Abgabevorrichtung
US12390822B2 (en) 2021-01-28 2025-08-19 Achim Heyne Container with cap and dispensing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302059A1 (de) * 1973-01-17 1974-07-25 Kapal Kaiser Preussag Aluminiu Verfahren zur erzeugung von innendruck in behaeltern
DE2615982A1 (de) * 1975-11-19 1977-06-02 Diamond Int Corp Spruehpumpe
DE2711795A1 (de) * 1977-03-18 1978-09-21 Lindal Gmbh Aerosol Tech Kolbenpumpe fuer die zerstaeubung eines fluids
DE2742887A1 (de) * 1977-07-29 1979-02-08 Toyo Aerosol Ind Co Spruehvorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117957A (en) * 1977-04-11 1978-10-03 George Duffey Atomizer valve assembly
US4183449A (en) * 1978-01-09 1980-01-15 The Afa Corporation Manually operated miniature atomizer
AU540119B2 (en) * 1979-03-27 1984-11-01 Yoshino Kogyosho Co., Ltd. Manual atomizer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302059A1 (de) * 1973-01-17 1974-07-25 Kapal Kaiser Preussag Aluminiu Verfahren zur erzeugung von innendruck in behaeltern
DE2615982A1 (de) * 1975-11-19 1977-06-02 Diamond Int Corp Spruehpumpe
DE2711795A1 (de) * 1977-03-18 1978-09-21 Lindal Gmbh Aerosol Tech Kolbenpumpe fuer die zerstaeubung eines fluids
DE2742887A1 (de) * 1977-07-29 1979-02-08 Toyo Aerosol Ind Co Spruehvorrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664182A1 (fr) * 1990-07-09 1992-01-10 Valois Pompe-doseuse pour pulverisateur sous pression avec securite intrinseque.
EP0466544A1 (fr) * 1990-07-09 1992-01-15 Société Anonyme dite:ETABLISSEMENTS VALOIS Pompe-doseuse pour pulvérisateur sous pression avec sécurité intrinsèque
EP0599186A1 (fr) * 1992-11-25 1994-06-01 Emson Incorporated Pompe avec joint d'étanchéité glissant
DE19832824A1 (de) * 1998-07-21 2000-02-10 Coster Tecnologie Speciali Spa Abgabepumpe für die Abgabe von Flüssigkeiten, Gelen oder dgl. Medien
DE19832824C2 (de) * 1998-07-21 2002-05-16 Coster Tecnologie Speciali Spa Abgabepumpe für die Abgabe von Flüssigkeiten, Gelen oder dgl. Medien
CN107814079A (zh) * 2017-11-28 2018-03-20 中山市华宝勒生活用品实业有限公司 一种准确定量的喷液盖

Also Published As

Publication number Publication date
JPS60197261A (ja) 1985-10-05
DE3342513A1 (de) 1985-06-05

Similar Documents

Publication Publication Date Title
DE69609233T2 (de) Vordruckpumpenzerstäuber
DE69033466T2 (de) Flüssigkeitsstrahl-Erzeuger
DE69112175T2 (de) Sprüh- oder Abgabevorrichtung eines flüssigen Produktes mit Ansaugen des im Austrittkanal enthaltenden Produktes am Ende der Betätigung.
DE60132791T2 (de) Abgasevorrichtung für aerosole
DE60035828T2 (de) Austragsventileinrichtung für eine hebelbetätigte Sprühvorrichtung
DE69305577T2 (de) Druckgasvorrichtung zum einmaligen Versprühen einer begrenzten Menge eines flüssigen Materials in fein verteilten Teilchen
DE2542851A1 (de) Zerstaeuber
DE202005021956U1 (de) Tragbarer wiederbefüllbarer Flüssigkeitsspender
DE69106111T2 (de) Handbetätigte Pumpe für Fluide.
DE4027749A1 (de) Austragvorrichtung fuer medien
DE3024325A1 (de) Fluessigkeitsspruehvorrichtung
DE2632662A1 (de) Umkehrbarer, handbetaetigter miniaturzerstaeuber
DE2732564A1 (de) Belueftete abgabevorrichtung zum kontinuierlichen austragen eines produkts
EP1324834A1 (fr) Dispositif de distribution de fluides
DE7707644U1 (de) Dosierventil für Aerosole
DE3420961C2 (fr)
DE19712256B4 (de) Zerstäuber mit sich hin- und herbewegenden Kolben
DE2846618C2 (fr)
EP0145908A1 (fr) Récipient pour matériaux pulvérisables avec pompe à piston
DE3624657A1 (de) Abgabepumpe fuer ein stroemungsmittel aus einem behaelter
EP1091809B1 (fr) Dispositif d'application pour fluides steriles
DE1147537B (de) Dosierventil fuer mit Spruehgut und Treibstoff gefuellte Spruehbehaelter
DE60023356T2 (de) Handbetätigte pumpe
DE2127651C3 (de) Zerstäubervorrichtung
DE69303700T2 (de) Anordnung zur Zerstäubung einer Flüssigkeit mit einer Vordruckpumpe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19841129

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19851217

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BELAU, RUEDIGER