EP0307310B1 - Zerstaüber mit Vordruck-Handpumpe für die Benutzung mit einem Treibgas - Google Patents

Zerstaüber mit Vordruck-Handpumpe für die Benutzung mit einem Treibgas Download PDF

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Publication number
EP0307310B1
EP0307310B1 EP88402253A EP88402253A EP0307310B1 EP 0307310 B1 EP0307310 B1 EP 0307310B1 EP 88402253 A EP88402253 A EP 88402253A EP 88402253 A EP88402253 A EP 88402253A EP 0307310 B1 EP0307310 B1 EP 0307310B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
pump
relief
sealing lip
receptacle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88402253A
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English (en)
French (fr)
Other versions
EP0307310A1 (de
Inventor
Jean Pierre Lina
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 France SAS
Original Assignee
Valois SAS
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 Valois SAS filed Critical Valois SAS
Priority to AT88402253T priority Critical patent/ATE65946T1/de
Publication of EP0307310A1 publication Critical patent/EP0307310A1/de
Application granted granted Critical
Publication of EP0307310B1 publication Critical patent/EP0307310B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/42—Filling or charging means
    • B65D83/425—Delivery valves permitting filling or charging
    • 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
    • B05B11/0005—Components or details
    • B05B11/0059—Components or details allowing operation in any orientation, e.g. for discharge in inverted position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—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
    • B05B11/1004—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
    • B05B11/1001—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
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve

Definitions

  • the present invention relates to a spray device of the manual precompression pump type usable for atomizing a liquid contained in a container, the liquid being maintained under pressure by a propellant dissolved (freon) or not dissolved (nitrogen) in the liquid, for the purpose of keep the liquid content away from air, and also facilitate priming and ensure faster and more complete filling of the pump chamber, in which a pump chamber can be closed by fitting one inside the other and relative sliding movement of two cylinders: a first cylinder integral with the outlet valve of the pump provided at one of its ends with a circular sealing lip, capable of engaging on, and sliding along the second cylinder which is in communication with the interior of the container.
  • the present invention particularly aims to allow safe and simple filling of the volume left free in the container for the propellant.
  • French patent 2407752 describes a precompression pump for atomizing a liquid, in which however it is not intended to house a gas under pressure to prevent the entry of air to replace the liquid when it is evacuated.
  • the outlet valve opens only if the pressure in the pump chamber reaches a certain value.
  • the pump is primed, the chamber is filled with liquid. If the volume of the chamber is reduced, the pressure rises very quickly to a high value because the liquid is incompressible, and the valve takes off, the liquid is expelled. But to prime the pump during the first commissioning, the chamber being filled with air, a reduction in the volume of the chamber increases the gas pressure relatively little, the valve does not come off. The air stagnates in the room.
  • the pump described in this patent includes means to facilitate, even to allow priming.
  • notches or projections are provided on the second cylinder, to put the volume of the chamber in communication with the interior of the container, when the pump is actuated fully. Passages are cleared at the sealing lip. These passages have a very small section. They just allow the evacuation of the air volume from the room. The position of the pump to obtain this evacuation is necessarily obtained by normal manual actuation of the pump.
  • the present invention relates to measures which allow the introduction into the container, already loaded with liquid, of a quantity of gas sufficient to prevent any entry of air into the container until complete expulsion of the liquid.
  • the invention relates to a vaporizer, of the manual precompression pump type, allowing the packaging of a product sheltered from air, usable on a container containing a liquid kept under pressure by a propellant, in which a pump chamber is pumped can be closed by fitting one inside the other and relative sliding movement of two cylinders: a first cylinder 11 secured to an outlet valve 10 of the pump provided with a of its ends with a circular sealing lip 12 which can engage on - and slide along - the second cylinder 15 which is in communication with the interior of the container, the wall of the second cylinder 15 on which the lip d seal 12 of the first cylinder 11 being provided at its end close to the container with a relief 18 such that, when the sealing lip 12 is at the level of this relief 18 and the seal is broken due to e of this relief 18, a passage is freed to allow a gas flow, characterized in that said relief is formed by at least one projecting rib, enough so that the sealing lip 12 of the first cylinder 11 cannot pass over
  • the invention relates to a vaporizer, of the manual precompression pump type, allowing the packaging of a product sheltered from air, usable on a container containing a liquid kept under pressure by a propellant gas, in which a pump chamber is pumped can be closed by fitting one inside the other and relative sliding movement of two cylinders: a first cylinder 11 secured to an outlet valve 10 of the pump provided with a of its ends of a circular sealing lip 12 which can engage on - and slide along - the second cylinder 15 which is in communication with the interior of the container, the wall of the second cylinder 15 on which the lip d sealing 12 of the first cylinder 11 being provided at at least one of its ends with a relief such that, when the sealing lip 12 is at the level of this relief and the sealing is broken because of this re lief, a passage is freed to allow a gas flow, characterized in that the passage allows a gas flow sufficient for filling the container, said relief consists of grooves 32 or cutouts 25 formed on the
  • the valve is provided to be able to be pushed back by a needle in order to cause it to be opened by a filling machine.
  • the valve may include in its center a dish, or a slight hollow at its end.
  • the sealing function of the valve is exerted on a portion of conical surface, around this hollow.
  • the needle is pushed in until the sealing lip of the first cylinder is level with the relief of the second cylinder.
  • the propellant can then be introduced into the container.
  • the relative position of the two cylinders suitable for filling will correspond to the start of the pump stroke, or to the end of this stroke.
  • this solution may be simpler to carry out, but delays the closing of the chamber pump during normal use, i.e. decreases its capacity.
  • the pump shown in axial section in the figures operates in a well known manner, except of course with regard to the modification due to the present invention.
  • the pump is intended to be housed in the opening of a container. It comprises a pump body 1, the upper part of which is crimped into a capsule 2 which is designed to be crimped itself on the neck of a container (not shown) with the interposition of appropriate seals.
  • the lower part has a ferrule 4 on which or in which a dip tube 5 is fitted.
  • In the pump body can slide a piston 6 secured to a rod 7 which emerges outside the pump.
  • An ejection channel 8 passes through the rod and the piston.
  • a push button is provided for engaging on the upper end of the rod 7 in order to depress the latter with the piston.
  • the valve is returned to the closed position upwards by a spring 13, bearing downwards against the bottom of the pump body.
  • the first cylinder is designed to be able to descend around a second cylinder 15, fixed in the bottom of the pump body.
  • the valve In the rest state, the valve is returned upwards by the spring 13, and drives the piston up to its stop position, the valve being kept closed.
  • the idle state shown in Figure 1
  • the first and second cylinders are spaced from each other. There is an annular passage between the two which allows the chamber to be filled, both by suction and under the effect of a propellant gas.
  • a relief formed by ribs 18 is formed around the base of the second cylinder 15 in the bottom of the pump chamber.
  • the sealing lip 12 is situated against the external surface of the second cylinder 15, above the ribs 18, it ensures the sealing and the pump chamber is closed, and the liquid which it contains can only exit 'by taking off the needle.
  • the valve is lowered, using a needle 31 ( Figure 3) for example, until the sealing lip is located in line with the ribs 18 (see Figure 2), there then has more tightness. If the valve is detached from the piston, it is then possible to introduce a pressurized gas into the container, through the ejection channel 8.
  • the central part of the needle is formed with a small bowl 10a, which automatically centers the needle 31, and avoids having it expelled laterally. While a bowl is preferable, a small dish may suffice.
  • recessed grooves could be provided.
  • the ribs are of interest: they form an additional thickness, and stop the descent of the valve under the effect of manual pressure which, in general, is not sufficient to force the lip 12 on the additional thickness, by spreading the lip. It is therefore not possible for a user to unexpectedly cause the rupture of the seal, at the end of the descent stroke, that is to say at the end of expulsion of a dose of product.
  • the machine for filling the canister with propellant gas can be provided with sufficient means to cause the elastic spacing of the sealing lip around the ribs 18.
  • ribs 20 on the top of the enlarged part of the valve, between the first cylinder 11 and the rod of the needle (see also in the figure 2).
  • ribs 21 are provided at the bottom of the first cylinder 11, to prevent the passage from being blocked by the upper edge of the second cylinder, when the first is lowered as far as possible (see also in FIG. 2).
  • a step 22 is provided on the inner wall of the pump body: this positively limits the descent of the piston, and therefore of the valve, to the height that l 'we want. Note that, in Figure 2, the valve is shown in the extreme lowered position, the spring being compressed to the maximum.
  • the relief on the second cylinder 15 is formed at the end of this cylinder which is, in the rest state (right half of the figure), the closest to the first cylinder.
  • the relief consists of grooves 32. It can also be formed by cutouts 25 (see detailed view in FIG. 4).
  • the valve is brought down, by means of a needle 31 (see on the left half of FIG. 3), to bring the sealing lip 12 halfway up the grooves 32, so as to clearly take off the needle from its seat 9, without lowering the piston, which is maintained in its upper position.
  • the passage is then free.
  • the grooves or cutouts must define a sufficient section to allow a filling gas flow.
  • the grooves Given the gap which exists at rest between the edges of the cylinders, it is necessary in practice for the grooves to be 1.5 mm long, regardless of the dimensions and volume of the pump. This criterion of 1.5 mm is therefore intrinsically valid, whether the stroke of the pump, usually 7 mm, or 5 or 10 mm. It is a function of the gap at rest between the facing edges of the cylinders, and of the thickness of the sealing lip. However, for all the usual size pumps in perfumery, pharmacy, etc., it appears that a groove length greater than or equal to 1.5 mm is required. This embodiment, of simpler manufacture, however has the disadvantage of reducing the effective stroke of the pump by a distance equal to the height of the grooves 32 or cutouts 25. Alternatively, it would also be possible to provide ribs in extra thickness. But this would cause resistance to be overcome at the start of the piston stroke during its normal use.
  • the pump according to the invention can be designed to be used in the inverted position (see FIG. 5).
  • the entry of liquid product in the pump body is made through a lateral hole 40, located above the pump chamber, and the bottom of the pump body is closed.
  • the pump body is provided with 'A bucket 41 going up (going down if we consider the inverted position) to the vicinity of the capsule.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Catching Or Destruction (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (5)

1. Zerstäuber von der Art Handpumpe mit Vorkompression, der die luftgeschützte Konditionierung eines Produkts erlaubt, verwendbar auf einem Behälter, der eine Flüssigkeit enthält, die durch ein Treibgas unter Druck gehalten wird, in welcher Pumpe eine Pumpkammer durch Aufeinanderschieben eines auf den anderen und relative Gleitbewegung zweier Zylinder geschlossen werden kann: ein erster, fest mit einem Ausgangsventil (10) der Pumpe verbundener Zylinder (11), der an einem seiner Enden mit einer kreisförmigen Dichtlippe (12) versehen ist, die sich auf den zweiten Zylinder (15), der mit dem Inneren des Behälters in Verbindung steht, aufschieben und auf ihm entlanggleiten kann, wobei die Wand des zweiten Zylinders (15), auf der die Dichtlippe (12) des ersten Zylinders (11) gleitet, an ihrem dem Behälter nahen Ende mit einem Relief (18) versehen ist, so daß, wenn die Dichtlippe (12) sich in Höhe dieses Reliefs (18) befindet und die Dichtheit wegen diesem Relief (18) unterbrochen ist, ein Durchlaß freigesetzt wird, um einen Gasausstoß zu ermöglichen, dadurch gekennzeichnet, daß das Relief aus mindestens einer vorspringenden Rippe besteht, ausreichend, damit die Dichtlippe (12) des ersten Zylinders (11) nicht aufgrund eines einfachen manuellen Schubs über diesen Vorsprung gleiten kann, sondern nur durch die Kraft einer Füllmaschine, und daß der freigesetzte Durchlaß einen ausreichend Gasausstoß erlaubt, um das Füllen des Behälters zu ermöglichen.
2. Zerstäuber von der Art Handpumpe mit Vorkompression, der die luftgeschützte Konditionierung eines Produkts erlaubt, verwendbar auf einem Behälter, der eine Flüssigkeit enthält, die durch ein Treibgas unter Druck gehalten wird, in welcher Pumpe eine Pumpkammer durch Aufeinanderschieben eines auf den anderen und relative Gleitbewegung zweier Zylinder geschlossen werden kann: ein erster, fest mit einem Ausgangsventil (10) der Pumpe verbundener Zylinder (11), der an einem seiner Enden mit einer kreisförmigen Dichtlippe (12) versehen ist, die sich auf den zweiten Zylinder (15), der mit dem Inneren des Behälters in Verbindung steht, aufschieben und auf ihm entlanggleiten kann, wobei die Wand des zweiten Zylinders (15), auf der die Dichtlippe (12) des ersten Zylinders (11) gleitet, an ihrem dem Behälter nahen Ende mit einem Relief (18) versehen ist, so daß, wenn die Dichtlippe (12) sich in Höhe dieses Reliefs (18) befindet und die Dichtheit wegen diesem Relief (18) unterbrochen ist, ein Durchlaß freigesetzt wird, um einen Gasausstoß zu ermöglichen, dadurch gekennzeichnet, daß der Durchlaß einen für das Füllen des Behälters ausreichenden Gasausstoß ermöglicht, daß das Relief aus Nuten (32) oder Ausschnitten (25) besteht, die auf dem Rand des zweiten Zylinders (15) am dem Behälter entgegengesetzten Ende ausgebildet sind, und diese Nuten (32) oder Ausschnitte (25) eine Mindestlänge von 1,5 mm haben, um einen guten Durchtritt des Füllgases zu ermöglichen, wenn die Dichtlippe (12) des ersten Zylinders (11) diesen Nuten (32) oder Ausschnitten (25) gegenüberliegt, d.h. wenn das Ventil (10) der Pumpe für den Füllvorgang zurückgeschoben ist, ausreichend, um das Füllgas eintreten zu lassen, wobei die Nuten (32) oder Ausschnitte (25) dann noch wesentlich über die Dichtlippe (12) des ersten Zylinders (11) hinaus vorstehen, der gleichzeitig mit dem Ventil (10), mit dem er fest verbunden ist, verschoben wurde.
3. Zerstäuber nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das Ende des Ventils (10) in seiner Mitte aus einer Platte oder einer Einbuchtung besteht.
4. Zerstäuber nach Anspruch 1, dadurch gekennzeichnet, daß Mittel (22) vorgesehen sind, um den Kolbenweg zu begrenzen.
5. Zerstäuber nach Anspruch 4, dadurch gekennzeichnet, daß die Mittel zur Begrenzung des Kolbenwegs aus einem peripheren Absatz (22) auf der Innenwand des Pumpenkörpers bestehen.
EP88402253A 1987-09-09 1988-09-08 Zerstaüber mit Vordruck-Handpumpe für die Benutzung mit einem Treibgas Expired - Lifetime EP0307310B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88402253T ATE65946T1 (de) 1987-09-09 1988-09-08 Zerstaueber mit vordruck-handpumpe fuer die benutzung mit einem treibgas.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8712496 1987-09-09
FR8712496A FR2620052B1 (fr) 1987-09-09 1987-09-09 Vaporisateur du type pompe manuelle a precompression pour utilisation avec un gaz propulseur

Publications (2)

Publication Number Publication Date
EP0307310A1 EP0307310A1 (de) 1989-03-15
EP0307310B1 true EP0307310B1 (de) 1991-08-07

Family

ID=9354741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88402253A Expired - Lifetime EP0307310B1 (de) 1987-09-09 1988-09-08 Zerstaüber mit Vordruck-Handpumpe für die Benutzung mit einem Treibgas

Country Status (5)

Country Link
US (2) US4964547A (de)
EP (1) EP0307310B1 (de)
AT (1) ATE65946T1 (de)
DE (1) DE3864107D1 (de)
FR (1) FR2620052B1 (de)

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FR2626851B1 (fr) * 1988-02-05 1990-07-06 Step Soc Tech Pulverisation Dispositif pour faciliter le remplissage des vaporisateurs

Also Published As

Publication number Publication date
US4964547A (en) 1990-10-23
FR2620052B1 (fr) 1990-04-27
ATE65946T1 (de) 1991-08-15
EP0307310A1 (de) 1989-03-15
FR2620052A1 (fr) 1989-03-10
US5096097A (en) 1992-03-17
DE3864107D1 (de) 1991-09-12

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