EP2926914B1 - Method for extracting liquid from an apparatus for dispensing liquid by gas injection - Google Patents

Method for extracting liquid from an apparatus for dispensing liquid by gas injection Download PDF

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Publication number
EP2926914B1
EP2926914B1 EP15248033.1A EP15248033A EP2926914B1 EP 2926914 B1 EP2926914 B1 EP 2926914B1 EP 15248033 A EP15248033 A EP 15248033A EP 2926914 B1 EP2926914 B1 EP 2926914B1
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EP
European Patent Office
Prior art keywords
liquid
container
pumping device
volume
dispenser
Prior art date
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Active
Application number
EP15248033.1A
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German (de)
French (fr)
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EP2926914A1 (en
Inventor
Jean-Philippe Lamboux
Loïc BOUET
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.)
Techniplast SARL
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Techniplast SARL
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Publication date
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Publication of EP2926914A1 publication Critical patent/EP2926914A1/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B05B11/00442—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being actuated by the difference between the atmospheric pressure and the pressure inside the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0097—Means for filling or refilling the sprayer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material

Definitions

  • the invention relates to a method for extracting a liquid such as perfume present in a liquid dispensing apparatus.
  • a liquid distribution device comprises a liquid container, and connected to the container, a liquid distribution device which is capable of taking liquid from the container (generally by pumping the liquid) and of conveying it by a path to at least one liquid outlet in order to distribute this liquid outside the device.
  • liquid dispensing devices present in these devices are generally configured to dispense a predetermined dose of liquid. They therefore do not make it possible to increase this dose.
  • the present invention thus relates to a method for extracting liquid from a liquid distribution apparatus as defined in claim 1.
  • the injection under pressure of a volume of gas into the container through the open air inlet (s) has the effect of expelling a predetermined quantity of the liquid (corresponding substantially to the volume of gas injected at the compression height gas near) the container in the liquid distribution device (the device is in communication, on the one hand, with the liquid of said container and, on the other hand, with the outside), then out of the device.
  • the injected gas thus drives the liquid out of the container and forces it to be extracted.
  • part of the conventional liquid distribution device generally an external part
  • the other part comprising the pumping device being left mounted in the container.
  • the process is particularly simple to implement.
  • the path for conveying the liquid to said at least one liquid outlet may, depending on the case, only open under the pressure / vacuum created by the injection. gas and thus be partially open or closed in the actuated position.
  • the liquid distribution device is generally actuated from the outside (for example by a downward vertical support which causes pumping of the liquid) in order to come take a predetermined and limited dose (by construction of the device) of liquid which will then be distributed outside.
  • the pumping device in the actuated position is rendered inoperative, which makes it possible not to be limited by the metering of liquid linked to the design of the pumping device. It is therefore possible to extract liquid through the pumping device without being limited by the metering specific to the device. The quantity (or volume) of liquid extracted can therefore be increased depending on the volume of gas injected.
  • the invention also relates to a liquid dispensing device according to claim 6.
  • the injection and extraction system generally replaces a part of a conventional distribution device which acts as an actuation piece (external) of the liquid pumping device.
  • the part of the conventional device has only one passage for conveying the pumped liquid to the dispensing outlet.
  • the liquid extraction is carried out through the pumping device in an actuated position.
  • the device is particularly simple in design since it is obtained by replacing part of the dispensing device with a suitable system (interface for the gas inlet and the liquid outlet).
  • This head is attached to the pumping device of the liquid dispensing device from which the actuation part has been removed (dispensing pusher) and it is mounted on the pumping device and, for example, also on a part of the device surrounding this device (eg container neck and / or closure element of the container opening).
  • This head can be configured according to the intended application and contains in itself all of the gas injection and liquid extraction elements mentioned above.
  • the head somehow plays the role of an interface between the device (or a part of it) and the outside.
  • the container 12 comprises, at its upper end 12a opposite the bottom 12b, an opening 16 in which a part of the device 14 is engaged.
  • the opening 16 is arranged at a narrowed section forming the neck of the container.
  • the opening could alternatively be carried out in a container whose upper end has a different shape (different neck or absence of a neck).
  • the rigid container is for example a glass bottle.
  • the device 14 is for example fixed to the container by crimping by means of a capsule 18 (eg aluminum) which surrounds part of the device and rests, on the one hand, on said device and, on the other hand, on a rim formed at the neck 12c of the container.
  • the capsule 18 is shaped to match the external shape of the parts which it surrounds.
  • the device is mounted and fixed to the container by screwing at the opening of the latter, generally by means of a thread on the inner surface of the wall delimiting the opening (here , the relevant wall defines the neck of the container).
  • the device 14 comprises a pumping device (pump) for pumping the liquid which is present in the container.
  • pump a pumping device
  • the device 14 also includes a so-called dispensing part which is located outside the container (above the container in the normal operating position of the device) and which comprises a part or actuating member 22 (push button distribution) to activate the pumping of the liquid and the distribution of the pumped liquid outside the device and therefore the device.
  • a so-called dispensing part which is located outside the container (above the container in the normal operating position of the device) and which comprises a part or actuating member 22 (push button distribution) to activate the pumping of the liquid and the distribution of the pumped liquid outside the device and therefore the device.
  • This member is represented here by a dispensing pusher which takes the form of a cap or hollow cap coming to cap the pumping device 20.
  • the user exerts with a finger a downward vertical pressure on the pusher 22 as indicated on the figure 2 to pump liquid for dispensing.
  • the piston 26 comprises a body, the central part of which has a wall pierced in order to communicate, on command, the zones situated on either side of the wall.
  • the jacket includes a part called the chamber inside which the piston moves and which houses the return spring 27.
  • the chamber is delimited at the bottom by the internal shoulder supporting the spring.
  • the pumping device also comprises a hollow rod 28 which is fixed at its base 28a to the piston 26 and at its opposite end 28b to the pusher 22. More particularly, the opposite end 28b of the rod is fitted into an internal thickness of the pusher in which is arranged a channel 29 for the liquid outlet. This channel is in communication with the internal conduit to the hollow rod 28.
  • the external action of vertical downward thrust on the pusher 22 is transmitted to the rod 28 which presses on the piston and thus allows it to slide towards the lower part of the jacket 24 by compressing the spring 27 ( figure 2 ).
  • the pumping device also comprises two valve systems 30, 32 (seat and valve): one 30 is placed between the piston and the rod and the other 32 is placed in the lower part of the jacket.
  • Each valve system comprises a valve seat and a valve movable relative to its seat and which takes, for example, the shape of a ball.
  • the valve system 30 comprises, on the one hand, a seat 30a provided with a through opening 30b which corresponds to the pierced wall of the central part of the piston 26 and, on the other hand, a ball 30c which closes or not , depending on its position ( figure 1 or 2 ), the opening 30b.
  • the internal conduit to the hollow rod 28 has an enlarged portion 28c in which the ball 30c can move when it departs from the opening and frees access to it.
  • the internal duct is extended by a part 28d of reduced diameter smaller than that of the ball in order to limit its movement.
  • the jacket 24 is extended vertically downwards beyond the internal shoulder 24a for supporting the spring by a first narrowed portion 24b which, in turn, is connected, by a second converging portion 24c, to a third portion 24d forming a chimney.
  • a suction tube 34 or dip tube is fitted into the chimney 24d and extends towards the bottom 12b of the container.
  • the valve system 32 comprises, on the one hand, a seat 32a which is formed by the second converging portion 24c and, on the other hand, a ball 32b which may or may not close, depending on its position ( figure 1, 2 or 3 ), the entrance to the chimney 24d.
  • the capsule 18 comprises a lower portion 18a which is shaped around an external rim of the neck 12c of the container.
  • the capsule 18 also includes an upper portion 18b which encloses the arrangement of the jacket 24, the piston 26 and the rod 28 arranged concentrically.
  • the upper portion 18b forms a cap of which a first part extends substantially axially away from the lower portion 18a and a second part extends radially in the direction of the rod 28 but leaving a radial space between said upper portion 18b and said rod 28. This radial space forms an external air inlet for compensation inside the container as illustrated on the figure 2 .
  • the jacket has at its upper end an external rim 24e against which the first part of the upper portion 18b is supported laterally and on which rests a part 36 (ex: washer) forming an axial stop at both for the piston 26 and for the rod 28.
  • the rod 28 has in fact an external part with an enlarged external diameter which abuts against the part 36 and therefore remains confined within the piston and the jacket.
  • the part 36 has an internal diameter greater than the external diameter of the rod 28 in its non-enlarged external part (this part surrounds the duct part of reduced diameter 28d) in order to leave a radial space between the two elements in the position of the figure 2 .
  • the second radial extension part of the upper portion 18b is supported on the part 36.
  • the jacket 24 also includes one or more through holes 38 in its substantially cylindrical wall which delimits the chamber inside which the piston 26 slides.
  • holes 38 are made in an area of the wall at the level (altitude) of which the piston 26 is disposed when the appliance is in the rest position of the figure 1 .
  • the hole 38 connects the internal space to the container and the space located between the body of the piston 26 and the cylindrical wall of the jacket (this second space does not communicate with the remaining part of the shirt due to the sealing of the contact between the piston body, via the upper and lower sealing lips, and the jacket wall).
  • the translational movement of the piston in the jacket (induced by an external actuation on the part of the user) associated with the alternating actuation of the two valve systems generates a phenomenon of pumping of the liquid contained in the container.
  • the piston is actuated by the hollow rod through which the liquid to be pumped will pass and which is itself actuated by a finger of the user pressing on a dispensing plunger.
  • a volume of liquid is stored on standby in the jacket 24, between the piston 26 and the ball 32b. This volume of liquid corresponds to the dose of product that will be dispensed by the pumping device during the following pumping operation illustrated in the figure 2 .
  • valve system 30 opens (the ball 30c moves away from its seat 30a), the system valve 32 from the bottom remains closed, the spring 27 is compressed and the axial space between the piston and the ball 32b is reduced.
  • the liquid contained in this space passes through the valve system 30 open while the valve system 32 closed prevents any discharge of the liquid inside the container.
  • the valve system 30 opens mechanically via a system of stops when the pumping device is in the low pumping position.
  • the liquid thus follows a routing path, called normal, out of the dispensing device and therefore of the device.
  • This path includes the dip tube 34, the valve system 30 open, the jacket 24, the valve system 32 open, the parts of conduit 28c and 28d of the rod 28 and the channel 29.
  • the dose expelled by the pumping phenomenon generates a vacuum in the sealed and non-deformable container which is compensated by a return of compensating air into the container in order to rebalance the internal pressure of the container.
  • the device 10 is thus structured to allow the entry of compensating air (air intake) and, therefore, the communication between the outside and the inside of the container, during pumping.
  • compensating air air intake
  • one or more make-up air inlets are provided in the component parts of the device.
  • the peripheral internal space 40 arranged between the upper capsule portion 18b and the rod 28 forms such a compensation air inlet.
  • This air inlet 40 is placed in communication with the hole 38 of the jacket when the piston is lowered ( figure 2 ) and therefore with the interior of the container, thus creating a passage for the supply of outside air into the container as illustrated by the arrows indicating the path of the air.
  • the user released his push on the pusher 22 from a low position (in abutment) of the pumping device.
  • the return spring 27 pushes the piston 26 upwards, the valve system 30 closes and the valve system 32 opens (the ball 32b moves away from its seat 32a).
  • the space between the piston and the valve system increases, which creates a vacuum and therefore a suction of liquid through the submerged dip tube 34 (as indicated by the arrows).
  • the liquid rises in the tube and begins to fill the internal space of the jacket via the valve system 32 open to reach the position of the figure 1 .
  • the air intake passages described above close as the piston rises, in particular when the hole 38 is hidden / closed by the body of the piston 26 which reaches its level. The tightness of the device is thus restored.
  • the figure 4 illustrates a first embodiment of a liquid distribution apparatus comprising a liquid extraction system by injecting gas such as air into the apparatus.
  • the device of the figure 4 takes over part of the camera Figures 1 to 3 . It is also the same for the apparatus of figures 5 and 6 .
  • the injection and extraction head 50 forms an example of a liquid extraction system from the apparatus 10 by gas injection.
  • the head 50 comprises an axial housing 52 whose diameter corresponds to the external diameter of the free end 28b in order to accommodate a part of said free end.
  • the head 50 also includes an axial duct 54 (channel 5 for conveying liquid forming an element for extracting the liquid external to the pumping device) extending the axial housing 52, with an internal diameter corresponding to the internal diameter of the part of the duct 28d , and opening onto the outside through an opening outlet opening 54a.
  • the conduit 54 communicates with the rod 28 of the pumping device by its opposite end 54b.
  • a peripheral seal 56 is arranged in the axial housing 52 around the free end 28b and a projecting portion of the rod.
  • a peripheral seal 58 is arranged in the wall of the head which comes into contact with the upper portion 18b of the capsule.
  • the filling head 50 also comprises an air injection channel 60 (air injection element) which is formed in at least part of the thickness or height of the head.
  • This channel comprises an inlet orifice 60a disposed at one of the walls of the head and an outlet orifice 60b arranged at the opposite end of the channel and which opens into an area of the head surrounding the rod 28. More particularly , the orifice 60b opens into an annular space 62 situated at the entrance to the axial housing 52.
  • the head 50 thus integrates into its body both a liquid extraction element and a gas injection element.
  • the channel 60 is here oriented with an angle of inclination less than 90 ° relative to the axis of the axial duct 54.
  • the head 50 is mounted on the pumping device (protruding rod 28) and on the external part of the device which closes the container 12 and surrounds the rod.
  • the head 50 is then pressed axially (e.g. vertically) in order to actuate the pumping device in a low actuated position and to lock the head in this position on the device by one or more locking members (e.g. snap-fastening) .
  • This makes it possible to obtain a sealed contact with the device and for the head thus locked to exert on the pumping device a permanent actuation control which maintains said device in the actuated position.
  • locking member or members allow for example the head to hang on the bottom of the container 12 by the external part of the latter.
  • the locking members comprise for example several elastic tabs (ex: 2, 3 ...) which extend axially (vertically downwards) from the underside of the head, surround the container and include , at their free end, a return to hang on the outer edge of the bottom of the container.
  • the legs have a height (axial extension) adapted so that, once hung (by retention) on the edge of the bottom of the container, the head exerts a permanent axial thrust on the pumping device (support / pushing) and thus forces it into an actuated position.
  • the legs can be replaced by a single locking member such as a skirt surrounding the container and coming, by a terminal internal rim, to be retained on the edge of the bottom of the container.
  • one or more independent locking members of the head can enclose both the upper face of the head (face comprising the orifice 54a) and the bottom of the container and exercise the same function.
  • the head is thus mounted in a removable and sealed manner on the pumping device.
  • the liquid extraction by gas injection is ready to be carried out.
  • one or more passages for the air intake are arranged in the device by means of the communication of the peripheral space 40 and the hole (s) 38 (inlet (s ) open compensation air (s)).
  • this or these passages are open and air is introduced or injected under pressure, (by suitable means such as a piston or the like) via the injection channel 60 (from a source d pressurized air (not shown) in the space 62, then in the passage or passages through the space 40 and the hole or holes 38, to open into the container. Pressing the pumping device makes it inoperative (disabled).
  • the injection pressure varies over a range from 200 mbar to 2 bar.
  • valve system 32 opens under the pressure of the liquid (the ball 32b moves away from its seat 32a and rises ).
  • the valve system 30 is open (the ball 30c moves away from its seat 30a and rises) by design due to the support on the pumping device.
  • the liquid is thus forced to circulate in a part of the normal path of liquid transport (tube 34, valve 30 open, jacket 24, valve 32 open, rod 28) through the liquid distribution device , then in the axial duct 54 of the head before being expelled from the device through the orifice 54a.
  • the part of the liquid delivery path which is located in the part of the liquid distribution device remaining in the device after removal of the dispensing pusher forms a liquid extraction element of the device.
  • the liquid conveying channel 54 forms, for its part, a liquid extraction element which is present in the system 50 attached to the apparatus of the figure 1 after removing the dispensing button.
  • the pumping device being rendered inoperative when it is actuated (partially depressed or not), the quantity of liquid which is extracted from the device no longer depends on this means (displacement of the pump) but on the volume of air injected into the recipient.
  • the pumping device of the apparatus of the figure 4 must be actuated in an actuated position (not at rest) for which the compensation air inlet (s) is or are open to the outside.
  • the pumping device does not have to be in an actuated low-stop position in which the path or passage internal to the pumping device for conveying the liquid is open.
  • This path can indeed be open, closed or partially open depending on the pumping configurations (ball valves, mechanical valves which by design only open when the pump is pressed against the stop ).
  • valve system 30, 32 is open in the actuated position of the pumping device.
  • the head 50 is locked on the pumping device in an actuated position intermediate between the rest position (not actuated) and the lowest actuated position (in abutment).
  • the valve system (therefore the liquid delivery path) is then partially open or closed and it will open completely under liquid pressure (following the injection of gas under pressure).
  • the head is mounted on the pumping device in a sealed manner with the latter but does not exert a permanent mechanical stress on the device.
  • the pumping device is therefore at rest and it is actuated, by pressure / pressing on the head 50, only when it is desired to extract the gas injection liquid (such as a dispensing plunger).
  • the head can comprise several gas injection elements (eg channels) and / or several liquid extraction elements (eg channels).
  • the device of the figure 4 is shown in a vertical position but it can be used in an inclined position relative to this position.
  • the figure 5 illustrates a second embodiment of a liquid distribution apparatus comprising a liquid extraction system by gas injection.
  • the injection and extraction head 70 forms an example of a system for extracting liquid from the apparatus 10 by gas injection.
  • the head 70 comprises the axial housing 52 of the head 50 of the figure 4 .
  • the head 70 also includes an internal liquid delivery channel 72 (the channel 72 forms an element for extracting the liquid external to the pumping device) which extends the axial housing 52, of internal diameter corresponding to the internal diameter of the duct part 28d, and opens onto the outside through an orifice opening out from spray 72a forming a spray nozzle.
  • an internal liquid delivery channel 72 (the channel 72 forms an element for extracting the liquid external to the pumping device) which extends the axial housing 52, of internal diameter corresponding to the internal diameter of the duct part 28d, and opens onto the outside through an orifice opening out from spray 72a forming a spray nozzle.
  • the channel 72 forms an elbow and comprises a first axial part 74, in the axis of the axial housing 52 and a second part 76 which extends perpendicular to the first part and away from the latter, in the direction of the orifice. 72a.
  • the head 70 has a lateral projection 70a in which extends a fraction of the second part 76 of the channel and the orifice 72a in order to lengthen the channel in its part upstream of the orifice. Note, however, that this outgrowth can be omitted in a variant.
  • the opening orifice is then arranged directly in the lateral vertical wall of the block forming the head 70.
  • the operation of the device of the figure 5 integrating the system 70 is identical to that of the apparatus of the figure 4 : the air injected into the container 12 through the open compensation air inlet (s) propels liquid into the liquid distribution device (devoid of the pusher 22) and into the channel 76 in order to expel it by the orifice 72a in the form of a spray jet.
  • the head 70 is analogous to a push button such as the button 22 except for the fact that it incorporates one or more gas injection elements.
  • the elbow at the junction between the first 74 and second 76 parts can be rounded in order to improve the circulation of the liquid in the channel.
  • the figure 6 illustrates a third embodiment of a liquid distribution apparatus comprising a liquid extraction system by gas injection.
  • the injection and extraction head 80 forms an example of a system for extracting liquid from the apparatus 10 by gas injection.
  • the head 80 comprises the axial housing 52 of the head 70 of the figure 5 .
  • the head 80 also comprises an internal liquid conveying channel 82 (the channel 82 forms an element for extracting the liquid external to the pumping device) which extends the axial housing 52, of internal diameter corresponding to the internal diameter of the part of conduit 28d, and opens to the outside through a through hole 82a.
  • Channel 82 comprises two parts 84, 86 connected to each other at a right angle like channel 72 of the figure 5 .
  • the head 80 also comprises, relative to the main body, a lateral protuberance 80a in which extends a fraction of the second part 86 of the channel and the orifice 82a in order to form a pouring spout (tap).
  • the second part 86 thus extends along a first fraction 86a perpendicular to the first part 84 and away from the latter, then along a second fraction 86b inside the lateral projection 80a.
  • This second fraction 86b is first rectilinear, then is curved downward to the orifice 82a.
  • the operation of the device of the figure 6 integrating the system 80 is substantially identical to that of the apparatus of the figure 5 : the air injected into the container 12 via the open compensation air inlet (s) propels liquid into the liquid distribution device (devoid of the pusher 22) and into the channel 86 in order to expel it by the orifice 82a of the pouring spout in the form of drops of liquid.
  • another open container or bottle 90 is placed below the pouring spout 80a in order to collect the drops of liquid extracted from the container 12. This makes it possible to fill the container 90.
  • the container 90 illustrated in the figure 6 has an external thread 92 which allows the attachment to the opening 94 of a pump or a plug not shown.
  • this arrangement makes it possible to produce samples in containers such as the container 90 which are of smaller capacity than the container 12.
  • the pumping device 20 of the liquid distribution device mounted crimped on the container 12 therefore does not need to be dismantled using the liquid extraction method according to the invention which has just been described.
  • gas than air can be used.
  • a gas deprived of oxygen in order to limit the oxidation of the liquid of the container can be used.
  • Nitrogen or other inert gas or other gases such as freon or the like for their compression capacity can be used.

Description

L'invention concerne un procédé d'extraction d'un liquide tel que du parfum présent dans un appareil de distribution de liquide.The invention relates to a method for extracting a liquid such as perfume present in a liquid dispensing apparatus.

De manière conventionnelle, un appareil de distribution de liquide comprend un récipient de liquide, et relié au récipient, un dispositif de distribution de liquide qui est apte à prélever du liquide dans le récipient (généralement par pompage du liquide) et à l'acheminer par un chemin jusqu'à au moins une sortie de liquide afin de distribuer ce liquide à l'extérieur de l'appareil.Conventionally, a liquid distribution device comprises a liquid container, and connected to the container, a liquid distribution device which is capable of taking liquid from the container (generally by pumping the liquid) and of conveying it by a path to at least one liquid outlet in order to distribute this liquid outside the device.

Les appareils conventionnels comme par exemple WO 2006/041574 A2 ou US 2009/212072 A1 , sont satisfaisants en termes de fonctionnalité de distribution de liquide, notamment de parfum.Conventional devices such as for example WO 2006/041574 A2 or US 2009/212072 A1 , are satisfactory in terms of functionality for dispensing liquid, in particular perfume.

Toutefois, les dispositifs de distribution de liquide présents dans ces appareils sont généralement configurés pour distribuer une dose prédéterminée de liquide. Ils ne permettent donc pas d'augmenter cette dose.However, the liquid dispensing devices present in these devices are generally configured to dispense a predetermined dose of liquid. They therefore do not make it possible to increase this dose.

Par ailleurs, le rechargement en liquide d'un autre récipient de liquide avec un tel appareil n'est généralement pas possible. Le dispositif de distribution de liquide monté sur le récipient n'est en effet pas toujours démontable.Furthermore, refilling with liquid of another container of liquid with such an apparatus is generally not possible. The liquid distribution device mounted on the container is not always removable.

Au vu de ce qui précède il serait donc intéressant de pouvoir extraire du liquide d'un tel appareil de distribution de liquide de manière non conventionnelle, notamment pour pouvoir augmenter la dose de liquide extraite (par rapport à une dose prédéterminée par la configuration du dispositif) et/ou recharger en liquide un autre récipient.In view of the above it would therefore be advantageous to be able to extract liquid from such a liquid dispensing device in an unconventional manner, in particular to be able to increase the dose of liquid extracted (compared to a dose predetermined by the configuration of the device ) and / or reload another container with liquid.

La présente invention a ainsi pour objet un procédé d'extraction de liquide d'un appareil de distribution de liquide comme défini dans la revendication 1.The present invention thus relates to a method for extracting liquid from a liquid distribution apparatus as defined in claim 1.

L'injection sous pression d'un volume de gaz dans le récipient à travers la ou les entrées d'air de compensation ouvertes a pour effet d'expulser une quantité prédéterminée du liquide (correspondant sensiblement au volume de gaz injecté à la hauteur de compression du gaz près) du récipient dans le dispositif de distribution de liquide (le dispositif est en communication, d'une part, avec le liquide dudit récipient et, d'autre part, avec l'extérieur), puis hors de l'appareil. Le gaz injecté chasse ainsi le liquide du récipient et force son extraction. On notera que pour effectuer l'injection de gaz et l'extraction de liquide, généralement, une partie du dispositif de distribution de liquide conventionnel (généralement une partie externe) est retirée (ex : poussoir ou pièce d'actionnement), l'autre partie comprenant le dispositif de pompage étant laissée montée dans le récipient. Le procédé est particulièrement simple à mettre en œuvre.The injection under pressure of a volume of gas into the container through the open air inlet (s) has the effect of expelling a predetermined quantity of the liquid (corresponding substantially to the volume of gas injected at the compression height gas near) the container in the liquid distribution device (the device is in communication, on the one hand, with the liquid of said container and, on the other hand, with the outside), then out of the device. The injected gas thus drives the liquid out of the container and forces it to be extracted. Note that to carry out the gas injection and the liquid extraction, generally, part of the conventional liquid distribution device (generally an external part) is removed (ex: pusher or actuating part), the other part comprising the pumping device being left mounted in the container. The process is particularly simple to implement.

Pour le fonctionnement de l'appareil selon l'invention, le chemin d'acheminement du liquide jusqu'à ladite au moins une sortie de liquide peut, selon les cas, ne s'ouvrir que sous la pression/dépression créée par l'injection du gaz et, ainsi, être partiellement ouvert ou fermé en position actionnée.For the operation of the device according to the invention, the path for conveying the liquid to said at least one liquid outlet may, depending on the case, only open under the pressure / vacuum created by the injection. gas and thus be partially open or closed in the actuated position.

En fonctionnement conventionnel, le dispositif de distribution de liquide est généralement actionné depuis l'extérieur (par exemple par un appui vertical descendant qui provoque un pompage du liquide) afin de venir prélever une dose prédéterminée et limitée (par construction du dispositif) de liquide qui sera ensuite distribuée à l'extérieur.In conventional operation, the liquid distribution device is generally actuated from the outside (for example by a downward vertical support which causes pumping of the liquid) in order to come take a predetermined and limited dose (by construction of the device) of liquid which will then be distributed outside.

Le dispositif de pompage en position actionnée est rendu inopérant, ce qui permet de ne pas être limité par le dosage de liquide lié à la conception du dispositif de pompage. Il est donc possible d'extraire du liquide à travers le dispositif de pompage sans être limité par le dosage propre au dispositif. La quantité (ou volume) de liquide extraite peut donc être augmentée en fonction du volume de gaz injecté.The pumping device in the actuated position is rendered inoperative, which makes it possible not to be limited by the metering of liquid linked to the design of the pumping device. It is therefore possible to extract liquid through the pumping device without being limited by the metering specific to the device. The quantity (or volume) of liquid extracted can therefore be increased depending on the volume of gas injected.

Selon d'autres caractéristiques possibles prises isolément ou en combinaison l'une avec l'autre :

  • le procédé comprend une étape d'actionnement du dispositif de pompage afin qu'il occupe une position actionnée ; alternativement le dispositif de distribution de liquide est conçu pour contraindre en permanence le dispositif de pompage en position appuyée ;
  • le récipient de liquide est pourvu d'une ouverture dans laquelle est monté le dispositif de distribution de liquide, ladite au moins une entrée d'air de compensation étant située au niveau de ladite ouverture du récipient et étant apte, d'une part, à être ouverte sur l'extérieur pour autoriser une entrée d'air extérieur de compensation dans le récipient lorsque le dispositif de pompage occupe la ou une position actionnée et, d'autre part, à être obturée lorsque le dispositif de pompage occupe la position de repos ;
  • le dispositif de distribution comprend, monté de manière amovible sur le dispositif de pompage, un système d'injection d'un volume de gaz et d'extraction de liquide hors de l'appareil sous l'action du volume de gaz injecté ;
  • préalablement à l'étape d'injection d'un volume de gaz d'extraction, le procédé comporte une étape de montage, sur le dispositif de pompage, du système d'extraction de liquide en remplacement d'une pièce d'actionnement qui permet uniquement de distribuer à l'extérieur de l'appareil du liquide pompé dans le récipient. Le passage d'un appareil conventionnel à un appareil selon l'invention est donc particulièrement simple à réaliser.
According to other possible characteristics taken individually or in combination with one another:
  • the method comprises a step of actuating the pumping device so that it occupies an actuated position; alternatively the liquid distribution device is designed to permanently constrain the pumping device in the pressed position;
  • the liquid container is provided with an opening in which the liquid distribution device is mounted, said at least one compensating air inlet being located at said opening of the container and being able, on the one hand, to be open to the outside to allow an entry of external compensating air into the container when the pumping device occupies the or an actuated position and, on the other hand, to be closed when the pumping device occupies the rest position ;
  • the dispensing device comprises, removably mounted on the pumping device, a system for injecting a volume of gas and extracting liquid from the device under the action of the volume of gas injected;
  • prior to the step of injecting a volume of extraction gas, the method comprises a step of mounting, on the pumping device, the liquid extraction system in replacement of an actuating part which allows only to distribute outside the device of the liquid pumped into the container. The transition from a conventional device to a device according to the invention is therefore particularly simple to carry out.

L'invention a aussi pour objet un appareil de distribution de liquide selon la revendication 6.The invention also relates to a liquid dispensing device according to claim 6.

Le système d'injection et d'extraction remplace généralement une partie d'un dispositif de distribution conventionnel qui fait office de pièce d'actionnement (externe) du dispositif de pompage du liquide. La partie du dispositif conventionnel ne comporte qu'un passage pour acheminer le liquide pompé jusqu'à la sortie de distribution.The injection and extraction system generally replaces a part of a conventional distribution device which acts as an actuation piece (external) of the liquid pumping device. The part of the conventional device has only one passage for conveying the pumped liquid to the dispensing outlet.

L'extraction de liquide est effectuée à travers le dispositif de pompage dans une position actionnée.The liquid extraction is carried out through the pumping device in an actuated position.

L'appareil est particulièrement simple de conception puisqu'il est obtenu en remplaçant une partie du dispositif de distribution par un système adapté (interface pour l'entrée de gaz et la sortie de liquide).The device is particularly simple in design since it is obtained by replacing part of the dispensing device with a suitable system (interface for the gas inlet and the liquid outlet).

Selon d'autres caractéristiques possibles :

  • le système d'injection et d'extraction est monté de manière amovible sur le dispositif de pompage ;
  • le système d'injection et d'extraction comprend :
    • au moins un élément d'injection d'un volume de gaz d'extraction par ladite au moins une entrée d'air de compensation,
    • au moins un élément d'extraction, hors de l'appareil, d'une quantité prédéterminée de liquide et qui comprend ladite au moins une sortie de liquide ;
  • ledit au moins un élément d'extraction hors de l'appareil de la quantité prédéterminée de liquide comprend un canal d'acheminement du liquide dont une première extrémité d'entrée communique avec le dispositif de pompage et dont une deuxième extrémité opposée de sortie est en communication avec l'extérieur, la deuxième extrémité opposée de sortie comprenant au choix : un orifice de sortie, un ou plusieurs orifices de pulvérisation, un bec verseur ;
  • ledit au moins un élément d'injection d'un volume de gaz comprend un ou plusieurs canaux d'injection de gaz ; le ou les canaux peuvent communiquer par une extrémité avec ladite au moins une entrée d'air de compensation ;
  • le système d'injection et d'extraction est monté de manière étanche sur le dispositif de pompage ;
  • le système d'injection et d'extraction est monté sur le dispositif de pompage de manière à exercer en permanence sur ce dernier une commande d'actionnement afin de maintenir le dispositif de pompage dans une position actionnée.
According to other possible characteristics:
  • the injection and extraction system is removably mounted on the pumping device;
  • the injection and extraction system includes:
    • at least one element for injecting a volume of extraction gas through said at least one compensation air inlet,
    • at least one element for extracting, from the apparatus, a predetermined quantity of liquid and which comprises said at least one liquid outlet;
  • said at least one element for extracting from the apparatus the predetermined quantity of liquid comprises a liquid conveying channel, a first inlet end of which communicates with the pumping device and a second opposite outlet end of which is in communication with the outside, the second opposite outlet end comprising, as desired: an outlet orifice, one or more spray orifices, a pouring spout;
  • said at least one gas volume injection element comprises one or more gas injection channels; the channel or channels can communicate at one end with said at least one compensation air inlet;
  • the injection and extraction system is mounted in leaktight manner on the pumping device;
  • the injection and extraction system is mounted on the pumping device so as to permanently exert an actuation command on the latter in order to maintain the pumping device in an actuated position.

L'invention a également pour objet une tête d'injection d'un volume de gaz et d'extraction de liquide destinée à être fixée à dispositif de pompage d'un appareil de distribution de liquide, caractérisée en ce que la tête comprend :

  • au moins un élément d'injection d'un volume de gaz d'extraction qui est destiné à injecter dans l'appareil un volume de gaz d'extraction,
  • au moins un élément d'extraction hors de l'appareil d'une quantité prédéterminée de liquide sous l'action du volume de gaz injecté.
The subject of the invention is also a head for injecting a volume of gas and for extracting liquid intended to be fixed to the pumping device of a liquid distribution apparatus, characterized in that the head comprises:
  • at least one element for injecting a volume of extraction gas which is intended to inject into the device a volume of extraction gas,
  • at least one element for extracting from the device a predetermined quantity of liquid under the action of the volume of gas injected.

Cette tête (système) vient se fixer au dispositif de pompage de l'appareil de distribution de liquide dont on a par exemple retiré la pièce d'actionnement (poussoir de distribution) et elle est montée sur le dispositif de pompage et, par exemple, également sur une partie de l'appareil entourant ce dispositif (ex : col du récipient et/ou élément de fermeture de l'ouverture de récipient).This head (system) is attached to the pumping device of the liquid dispensing device from which the actuation part has been removed (dispensing pusher) and it is mounted on the pumping device and, for example, also on a part of the device surrounding this device (eg container neck and / or closure element of the container opening).

Cette tête peut être configurée en fonction de l'application visée et contient en elle-même l'ensemble des éléments d'injection de gaz et d'extraction de liquide mentionnés ci-dessus. La tête joue en quelque sorte le rôle d'une interface entre l'appareil (ou une partie de celui-ci) et l'extérieur.This head can be configured according to the intended application and contains in itself all of the gas injection and liquid extraction elements mentioned above. The head somehow plays the role of an interface between the device (or a part of it) and the outside.

Selon d'autres caractéristiques possibles :

  • ledit au moins un élément d'injection d'un volume de gaz d'extraction comprend un ou plusieurs canaux d'injection de gaz ;
  • ledit au moins un élément d'extraction de liquide comprend un canal d'acheminement du liquide qui comporte deux extrémités débouchant sur l'extérieur de la tête.
According to other possible characteristics:
  • said at least one element for injecting a volume of extraction gas comprises one or more gas injection channels;
  • said at least one liquid extraction element comprises a liquid conveying channel which has two ends opening onto the outside of the head.

D'autres caractéristiques et avantages apparaitront au cours de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en référence aux dessins annexés, sur lesquels :

  • les figures 1 à 3 illustrent un appareil de distribution de liquide selon un mode de réalisation de l'invention dans trois positions différentes ;
  • la figure 4 est une vue schématique d'un premier mode de réalisation d'un système d'extraction de liquide par injection de gaz associé à une partie de l'appareil des figures 1 à 3 ;
  • la figure 5 est une vue schématique d'un deuxième mode de réalisation d'un système d'extraction de liquide par injection de gaz associé à une partie de l'appareil des figures 1 à 3 ;
  • la figure 6 est une vue schématique d'un troisième mode de réalisation d'un système d'extraction de liquide par injection de gaz associé à une partie de l'appareil des figures 1 à 3.
Other characteristics and advantages will appear during the description which follows, given solely by way of nonlimiting example and made with reference to the appended drawings, in which:
  • the Figures 1 to 3 illustrate a liquid dispensing apparatus according to an embodiment of the invention in three different positions;
  • the figure 4 is a schematic view of a first embodiment of a system for extracting liquid by injecting gas associated with a part of the apparatus of the Figures 1 to 3 ;
  • the figure 5 is a schematic view of a second embodiment of a system for extracting liquid by injecting gas associated with a part of the apparatus of Figures 1 to 3 ;
  • the figure 6 is a schematic view of a third embodiment of a system for extracting liquid by injecting gas associated with a part of the apparatus of the Figures 1 to 3 .

Comme représenté sur les figures 1 à 3 et désigné par la référence 5 générale notée 10, un appareil de distribution de liquide tel que du parfum selon un mode de réalisation de l'invention comprend, représenté en position d'utilisation normale de l'appareil:

  • un récipient rigide 12 contenant un liquide (ex : parfum) à distribuer à l'extérieur dudit récipient, par exemple par pulvérisation du liquide,
  • un dispositif de distribution de liquide 14 qui est monté sur le récipient 12 disposé verticalement.
As shown on Figures 1 to 3 and designated by the general reference 5 denoted 10, a device for dispensing liquid such as perfume according to one embodiment of the invention comprises, represented in the position of normal use of the device:
  • a rigid container 12 containing a liquid (eg perfume) to be distributed outside said container, for example by spraying the liquid,
  • a liquid distribution device 14 which is mounted on the container 12 arranged vertically.

Plus particulièrement, le récipient 12 comporte, à son extrémité supérieure 12a opposée au fond 12b, une ouverture 16 dans laquelle est engagée une partie du dispositif 14. L'ouverture 16 est aménagée au niveau d'une section rétrécie formant col du récipient. Toutefois, l'ouverture pourrait alternativement être réalisée dans un récipient dont l'extrémité supérieure a une forme différente (col différent ou absence de col). Le récipient rigide est par exemple un flacon en verre.More particularly, the container 12 comprises, at its upper end 12a opposite the bottom 12b, an opening 16 in which a part of the device 14 is engaged. The opening 16 is arranged at a narrowed section forming the neck of the container. However, the opening could alternatively be carried out in a container whose upper end has a different shape (different neck or absence of a neck). The rigid container is for example a glass bottle.

Le dispositif 14 est par exemple fixé au récipient par sertissage au moyen d'une capsule 18 (ex : en aluminium) qui entoure une partie du dispositif et prend appui, d'une part, sur ledit dispositif et, d'autre part, sur un rebord formé au niveau du col 12c du récipient. La capsule 18 est conformée pour épouser la forme extérieure des pièces qu'elle entoure.The device 14 is for example fixed to the container by crimping by means of a capsule 18 (eg aluminum) which surrounds part of the device and rests, on the one hand, on said device and, on the other hand, on a rim formed at the neck 12c of the container. The capsule 18 is shaped to match the external shape of the parts which it surrounds.

Selon une variante de réalisation non représentée, le dispositif est monté et fixé au récipient par vissage au niveau de l'ouverture de ce dernier, généralement par l'intermédiaire d'un filetage sur la surface intérieure de la paroi délimitant l'ouverture (ici, la paroi concernée définit le col du récipient).According to an alternative embodiment not shown, the device is mounted and fixed to the container by screwing at the opening of the latter, generally by means of a thread on the inner surface of the wall delimiting the opening (here , the relevant wall defines the neck of the container).

Le dispositif 14 comprend un dispositif 20 de pompage (pompe) pour le pompage du liquide qui est présent dans le récipient.The device 14 comprises a pumping device (pump) for pumping the liquid which is present in the container.

Le dispositif 14 comprend également une partie dite de distribution qui est située à l'extérieur du récipient (au dessus du récipient dans la position d'utilisation normale de l'appareil) et qui comporte une pièce ou organe d'actionnement 22 (poussoir de distribution) permettant d'actionner le pompage du liquide et la distribution du liquide pompé à l'extérieur du dispositif et donc de l'appareil.The device 14 also includes a so-called dispensing part which is located outside the container (above the container in the normal operating position of the device) and which comprises a part or actuating member 22 (push button distribution) to activate the pumping of the liquid and the distribution of the pumped liquid outside the device and therefore the device.

Cet organe est représenté ici par un poussoir de distribution qui prend la forme d'un capuchon ou capot creux venant coiffer le dispositif de pompage 20. L'utilisateur exerce avec un doigt une pression verticale descendante sur le poussoir 22 comme indiqué sur la figure 2 afin de pomper du liquide en vue de sa distribution.This member is represented here by a dispensing pusher which takes the form of a cap or hollow cap coming to cap the pumping device 20. The user exerts with a finger a downward vertical pressure on the pusher 22 as indicated on the figure 2 to pump liquid for dispensing.

Le dispositif de pompage 20 comprend :

  • un corps ou chemise 24,
  • un piston 26 qui est apte à coulisser le long de la face interne de la chemise tout en assurant un contact étanche entre les deux pièces lors de ce mouvement, et
  • un ressort de rappel 27 installé de manière comprimée entre le piston situé au dessus et un épaulement interne 24a de la partie inférieure de la chemise.
The pumping device 20 comprises:
  • a body or shirt 24,
  • a piston 26 which is able to slide along the internal face of the jacket while ensuring tight contact between the two parts during this movement, and
  • a return spring 27 installed in a compressed manner between the piston located above and an internal shoulder 24a of the lower part of the jacket.

Le piston 26 comprend un corps dont la partie centrale comporte une paroi percée afin de mettre en communication, sur commande, les zones situées de part et d'autre de la paroi.The piston 26 comprises a body, the central part of which has a wall pierced in order to communicate, on command, the zones situated on either side of the wall.

La chemise comprend une partie appelée chambre à l'intérieur de laquelle le piston se déplace et qui loge le ressort de rappel 27. La chambre est délimitée en partie basse par l'épaulement interne d'appui du ressort.The jacket includes a part called the chamber inside which the piston moves and which houses the return spring 27. The chamber is delimited at the bottom by the internal shoulder supporting the spring.

Le dispositif de pompage comprend également une tige creuse 28 qui est fixée à sa base 28a au piston 26 et à son extrémité opposée 28b au poussoir 22. Plus particulièrement, l'extrémité opposée 28b de la tige est emboitée dans une surépaisseur interne du poussoir dans lequel est aménagé un canal 29 pour la sortie de liquide. Ce canal est en communication avec le conduit interne à la tige creuse 28. L'action externe de poussée verticale descendante sur le poussoir 22 est transmise à la tige 28 qui appuie sur le piston et permet ainsi de le faire coulisser vers la partie inférieure de la chemise 24 en comprimant le ressort 27 (figure 2).The pumping device also comprises a hollow rod 28 which is fixed at its base 28a to the piston 26 and at its opposite end 28b to the pusher 22. More particularly, the opposite end 28b of the rod is fitted into an internal thickness of the pusher in which is arranged a channel 29 for the liquid outlet. This channel is in communication with the internal conduit to the hollow rod 28. The external action of vertical downward thrust on the pusher 22 is transmitted to the rod 28 which presses on the piston and thus allows it to slide towards the lower part of the jacket 24 by compressing the spring 27 ( figure 2 ).

Le dispositif de pompage comprend également deux systèmes de clapets 30, 32 (siège et clapet): l'un 30 est placé entre le piston et la tige et l'autre 32 est placé en partie inférieure de la chemise. Chaque système de clapet comprend un siège de clapet et un clapet mobile par rapport à son siège et qui prend par exemple la forme d'une bille.The pumping device also comprises two valve systems 30, 32 (seat and valve): one 30 is placed between the piston and the rod and the other 32 is placed in the lower part of the jacket. Each valve system comprises a valve seat and a valve movable relative to its seat and which takes, for example, the shape of a ball.

Le système de clapet 30 comprend, d'une part, un siège 30a muni d'une ouverture traversante 30b qui correspond à la paroi percée de la partie 5 centrale du piston 26 et, d'autre part, une bille 30c qui obture ou non, selon sa position (figure 1 ou 2), l'ouverture 30b. Le conduit interne à la tige creuse 28 présente une partie élargie 28c dans laquelle la bille 30c peut se mouvoir lorsqu'elle s'écarte de l'ouverture et en libère l'accès. Le conduit interne est prolongé par une partie 28d de diamètre réduit inférieur à celui de la bille afin de limiter son déplacement.The valve system 30 comprises, on the one hand, a seat 30a provided with a through opening 30b which corresponds to the pierced wall of the central part of the piston 26 and, on the other hand, a ball 30c which closes or not , depending on its position ( figure 1 or 2 ), the opening 30b. The internal conduit to the hollow rod 28 has an enlarged portion 28c in which the ball 30c can move when it departs from the opening and frees access to it. The internal duct is extended by a part 28d of reduced diameter smaller than that of the ball in order to limit its movement.

La chemise 24 est prolongée verticalement vers le bas au-delà de l'épaulement interne 24a d'appui du ressort par une première portion rétrécie 24b qui, à son tour, est reliée, par une deuxième portion convergente 24c, à une troisième portion 24d formant cheminée. Un tube d'aspiration 34 ou tube plongeur est emmanché dans la cheminée 24d et s'étend vers le fond 12b du récipient.The jacket 24 is extended vertically downwards beyond the internal shoulder 24a for supporting the spring by a first narrowed portion 24b which, in turn, is connected, by a second converging portion 24c, to a third portion 24d forming a chimney. A suction tube 34 or dip tube is fitted into the chimney 24d and extends towards the bottom 12b of the container.

Le système de clapet 32 comprend, d'une part, un siège 32a qui est formé par la deuxième portion convergente 24c et, d'autre part, une bille 32b qui obture ou non, selon sa position (figure 1, 2 ou 3), l'entrée de la cheminée 24d.The valve system 32 comprises, on the one hand, a seat 32a which is formed by the second converging portion 24c and, on the other hand, a ball 32b which may or may not close, depending on its position ( figure 1, 2 or 3 ), the entrance to the chimney 24d.

Comme représenté sur la figure 1, la capsule 18 comprend une portion inférieure 18a qui est conformée autour d'un rebord externe du col 12c du récipient. La capsule 18 comprend également une portion supérieure 18b qui enserre l'agencement de la chemise 24, du piston 26 et de la tige 28 disposés de manière concentrique. La portion supérieure 18b forme une coiffe dont une première partie s'étend sensiblement axialement en éloignement de la portion inférieure 18a et une deuxième partie s'étend radialement en direction de la tige 28 mais en laissant dégagé un espace radial entre ladite portion supérieure 18b et ladite tige 28. Cet espace radial forme une entrée d'air externe de compensation à l'intérieur du récipient comme illustré sur la figure 2.As shown in the figure 1 , the capsule 18 comprises a lower portion 18a which is shaped around an external rim of the neck 12c of the container. The capsule 18 also includes an upper portion 18b which encloses the arrangement of the jacket 24, the piston 26 and the rod 28 arranged concentrically. The upper portion 18b forms a cap of which a first part extends substantially axially away from the lower portion 18a and a second part extends radially in the direction of the rod 28 but leaving a radial space between said upper portion 18b and said rod 28. This radial space forms an external air inlet for compensation inside the container as illustrated on the figure 2 .

Dans cette zone enserrée par la portion supérieure 18b la chemise présente à son extrémité supérieure un rebord externe 24e contre lequel s'appuie latéralement la première partie de la portion supérieure 18b et sur lequel repose une pièce 36 (ex : rondelle) formant butée axiale à la fois pour le piston 26 et pour la tige 28. La tige 28 présente en effet une partie externe avec un diamètre externe élargi qui vient en butée contre la pièce 36 et reste donc confinée à l'intérieur du piston et de la chemise. On notera que la pièce 36 présente un diamètre interne supérieur au diamètre externe de la tige 28 dans sa partie externe non élargie (cette partie entoure la partie de conduit de diamètre réduit 28d) afin de laisser dégagé un espace radial entre les deux éléments dans la position de la figure 2.In this zone enclosed by the upper portion 18b, the jacket has at its upper end an external rim 24e against which the first part of the upper portion 18b is supported laterally and on which rests a part 36 (ex: washer) forming an axial stop at both for the piston 26 and for the rod 28. The rod 28 has in fact an external part with an enlarged external diameter which abuts against the part 36 and therefore remains confined within the piston and the jacket. It will be noted that the part 36 has an internal diameter greater than the external diameter of the rod 28 in its non-enlarged external part (this part surrounds the duct part of reduced diameter 28d) in order to leave a radial space between the two elements in the position of the figure 2 .

La deuxième partie d'extension radiale de la portion supérieure 18b est en appui sur la pièce 36.The second radial extension part of the upper portion 18b is supported on the part 36.

La chemise 24 comprend également un ou plusieurs trous traversants 38 dans sa paroi sensiblement cylindrique qui délimite la chambre à l'intérieur de laquelle coulisse le piston 26.The jacket 24 also includes one or more through holes 38 in its substantially cylindrical wall which delimits the chamber inside which the piston 26 slides.

Ce ou ces trous 38 (un seul est représenté sur les figures) sont pratiqués dans une zone de la paroi au niveau (altitude) de laquelle est disposé le piston 26 lorsque l'appareil est dans la position de repos de la figure 1. Ainsi, le trou 38 met en communication l'espace interne au récipient et l'espace situé entre le corps du piston 26 et la paroi cylindrique de la chemise (ce deuxième espace ne communique pas avec la partie restante de la chemise en raison de l'étanchéité du contact entre le corps du piston, via les lèvres d'étanchéité haute et basse, et la paroi de la chemise).This or these holes 38 (only one is shown in the figures) are made in an area of the wall at the level (altitude) of which the piston 26 is disposed when the appliance is in the rest position of the figure 1 . Thus, the hole 38 connects the internal space to the container and the space located between the body of the piston 26 and the cylindrical wall of the jacket (this second space does not communicate with the remaining part of the shirt due to the sealing of the contact between the piston body, via the upper and lower sealing lips, and the jacket wall).

On va maintenant décrire le fonctionnement normal de l'appareil 10 en référence aux figures 1 à 3.We will now describe the normal operation of the apparatus 10 with reference to Figures 1 to 3 .

De manière générale, le mouvement de translation du piston dans la chemise (induit par un actionnement externe de la part de l'utilisateur) associé à l'actionnement alternatif des deux systèmes de clapet génère un phénomène de pompage du liquide contenu dans le récipient. Le piston est actionné par la tige creuse dans laquelle va passer le liquide à pomper et qui est elle-même actionnée par un doigt de l'utilisateur appuyant sur un poussoir de distribution.In general, the translational movement of the piston in the jacket (induced by an external actuation on the part of the user) associated with the alternating actuation of the two valve systems generates a phenomenon of pumping of the liquid contained in the container. The piston is actuated by the hollow rod through which the liquid to be pumped will pass and which is itself actuated by a finger of the user pressing on a dispensing plunger.

Sur la figure 1, en position de repos, le piston 26 est repoussé vers le haut de la chemise 24 (en butée contre la pièce 36) par le ressort 27. Le système de clapet 30 du haut est fermé ainsi que le système de clapet 32 du bas. Le dispositif de pompage est en position haute (repos). Le tube plongeur est immergé dans le liquide contenu dans le récipient.On the figure 1 , in the rest position, the piston 26 is pushed up the jacket 24 (in abutment against the part 36) by the spring 27. The valve system 30 from the top is closed as well as the valve system 32 from the bottom. The pumping device is in the high position (rest). The dip tube is immersed in the liquid in the container.

Après amorçage du dispositif de pompage, un volume de liquide est stocké en attente dans la chemise 24, entre le piston 26 et la bille 32b. Ce volume de liquide correspond à la dose de produit qui sera distribuée par le dispositif de pompage lors de l'opération suivante de pompage illustrée à la figure 2.After priming of the pumping device, a volume of liquid is stored on standby in the jacket 24, between the piston 26 and the ball 32b. This volume of liquid corresponds to the dose of product that will be dispensed by the pumping device during the following pumping operation illustrated in the figure 2 .

Comme illustré sur la figure 2, lorsque l'utilisateur actionne le poussoir 22 (suivant la flèche verticale), le piston 26 glisse dans la chemise 24, le système de clapet 30 du haut s'ouvre (la bille 30c s'écarte de son siège 30a), le système de clapet 32 du bas reste fermé, le ressort 27 se comprime et l'espace axial entre le piston et la bille 32b se réduit. Le liquide contenu dans cet espace passe par le système de clapet 30 ouvert tandis que le système de clapet 32 fermé interdit tout refoulement du liquide à l'intérieur du récipient. On notera que dans la conception de l'appareil des figures 1 à 3 le système de clapet 30 s'ouvre mécaniquement par l'intermédiaire d'un système de butées lorsque le dispositif de pompage est en position basse de pompage.As illustrated in the figure 2 , when the user actuates the pusher 22 (along the vertical arrow), the piston 26 slides in the jacket 24, the valve system 30 from the top opens (the ball 30c moves away from its seat 30a), the system valve 32 from the bottom remains closed, the spring 27 is compressed and the axial space between the piston and the ball 32b is reduced. The liquid contained in this space passes through the valve system 30 open while the valve system 32 closed prevents any discharge of the liquid inside the container. Note that in the design of the device Figures 1 to 3 the valve system 30 opens mechanically via a system of stops when the pumping device is in the low pumping position.

Le liquide monte dans les parties de conduit 28c, 28d de la tige 28, passe dans le canal 29 et en sort par l'extrémité débouchante 29a pour être distribué à l'extérieur de l'appareil. Le liquide emprunte ainsi un chemin d'acheminement, dit normal, pour sortir du dispositif de distribution et donc de l'appareil. Ce chemin comprend le tube plongeur 34, le système de clapet 30 ouvert, la chemise 24, le système de clapet 32 ouvert, les parties de conduit 28c et 28d de la tige 28 et le canal 29.The liquid rises in the parts of conduit 28c, 28d of the rod 28, passes through the channel 29 and leaves therefrom through the through end 29a to be distributed outside the device. The liquid thus follows a routing path, called normal, out of the dispensing device and therefore of the device. This path includes the dip tube 34, the valve system 30 open, the jacket 24, the valve system 32 open, the parts of conduit 28c and 28d of the rod 28 and the channel 29.

La dose expulsée par le phénomène de pompage génère une dépression dans le récipient étanche et non déformable qui est compensée par une rentrée d'air de compensation dans le récipient afin de rééquilibrer la pression interne du récipient.The dose expelled by the pumping phenomenon generates a vacuum in the sealed and non-deformable container which is compensated by a return of compensating air into the container in order to rebalance the internal pressure of the container.

Au repos (figure 1) l'appareil est parfaitement étanche vis-à-vis de l'extérieur, l'air extérieur ne pouvant pas rentrer dans le récipient. Toutefois, lors de l'actionnement du dispositif de pompage cette étanchéité est rompue ponctuellement afin de permettre à un volume d'air externe de rentrer dans le récipient pour rééquilibrer la pression interne du récipient (dépression en raison du liquide pompé).Resting ( figure 1 ) the device is perfectly sealed vis-à-vis the outside, outside air cannot enter the container. However, when the pumping device is actuated, this seal is broken punctually in order to allow an external volume of air to enter the container in order to rebalance the internal pressure of the container (depression due to the pumped liquid).

L'appareil 10 est ainsi structuré pour permettre l'entrée d'air de compensation (reprise d'air) et, donc, la communication entre l'extérieur et l'intérieur du récipient, lors du pompage. Comme déjà décrit ci-dessus, pour ce faire, une ou plusieurs entrées d'air de compensation sont aménagées dans les pièces constitutives de l'appareil. L'espace interne périphérique 40 aménagé entre la portion supérieure de capsule 18b et la tige 28 forme une telle entrée d'air de compensation. Cette entrée d'air 40 est mise en communication avec le trou 38 de la chemise lorsque le piston est abaissé (figure 2) et donc avec l'intérieur du récipient, créant ainsi un passage pour l'amenée d'air extérieur dans le récipient comme illustré par les flèches indiquant le trajet de l'air.The device 10 is thus structured to allow the entry of compensating air (air intake) and, therefore, the communication between the outside and the inside of the container, during pumping. As already described above, to do this, one or more make-up air inlets are provided in the component parts of the device. The peripheral internal space 40 arranged between the upper capsule portion 18b and the rod 28 forms such a compensation air inlet. This air inlet 40 is placed in communication with the hole 38 of the jacket when the piston is lowered ( figure 2 ) and therefore with the interior of the container, thus creating a passage for the supply of outside air into the container as illustrated by the arrows indicating the path of the air.

Sur la figure 3, l'utilisateur a relâché sa poussée sur le poussoir 22 à partir d'une position basse (en butée) du dispositif de pompage. Le ressort de rappel 27 repousse le piston 26 vers le haut, le système de clapet 30 se ferme et le système de clapet 32 s'ouvre (la bille 32b s'écarte de son siège 32a). L'espace entre le piston et le système de clapet s'agrandit, ce qui crée une dépression et donc une aspiration de liquide par le tube plongeur 34 immergé (comme indiqué par les flèches). Le liquide monte dans le tube et commence à remplir l'espace interne de la chemise via le système de clapet 32 ouvert pour aboutir à la position de la figure 1. Les passages de reprise d'air décrits ci-dessus se referment au fur et à mesure de la remontée du piston, notamment lorsque le trou 38 est masqué/obturé par le corps du piston 26 qui arrive à son niveau. L'étanchéité de l'appareil est ainsi rétablie.On the figure 3 , the user released his push on the pusher 22 from a low position (in abutment) of the pumping device. The return spring 27 pushes the piston 26 upwards, the valve system 30 closes and the valve system 32 opens (the ball 32b moves away from its seat 32a). The space between the piston and the valve system increases, which creates a vacuum and therefore a suction of liquid through the submerged dip tube 34 (as indicated by the arrows). The liquid rises in the tube and begins to fill the internal space of the jacket via the valve system 32 open to reach the position of the figure 1 . The air intake passages described above close as the piston rises, in particular when the hole 38 is hidden / closed by the body of the piston 26 which reaches its level. The tightness of the device is thus restored.

La figure 4 illustre un premier mode de réalisation d'un appareil de distribution de liquide comportant un système d'extraction de liquide par injection de gaz tel que de l'air dans l'appareil. L'appareil de la figure 4 reprend une partie de l'appareil des figures 1 à 3. Il en est d'ailleurs de même pour l'appareil des figures 5 et 6.The figure 4 illustrates a first embodiment of a liquid distribution apparatus comprising a liquid extraction system by injecting gas such as air into the apparatus. The device of the figure 4 takes over part of the camera Figures 1 to 3 . It is also the same for the apparatus of figures 5 and 6 .

Dans un premier temps on démonte puis on retire le poussoir de distribution 22 (pièce d'actionnement) de l'appareil 10 de la figure 1. Ensuite, on coiffe l'appareil (dépourvu du poussoir 22 et comprenant le récipient et le dispositif de pompage), c'est-à-dire l'extrémité libre 28b de la tige 28 saillante du dispositif de pompage et la portion supérieure 18b de la capsule 18, d'une tête d'injection et d'extraction 50. La tête d'injection et d'extraction 50 forme un exemple d'un système d'extraction de liquide de l'appareil 10 par injection de gaz. La tête 50 comprend un logement axial 52 dont le diamètre correspond au diamètre externe de l'extrémité libre 28b afin d'y loger une partie de ladite extrémité libre. La tête 50 comprend également un conduit axial 54 (canal 5 d'acheminement de liquide formant un élément d'extraction du liquide externe au dispositif de pompage) prolongeant le logement axial 52, de diamètre interne correspondant au diamètre interne de la partie de conduit 28d, et débouchant sur l'extérieur par un orifice de sortie débouchant 54a. Le conduit 54 communique avec la tige 28 du dispositif de pompage par son extrémité opposée 54b. Un joint d'étanchéité périphérique 56 est aménagé dans le logement axial 52 autour de l'extrémité libre 28b et d'une portion saillante de la tige. De même, un joint d'étanchéité périphérique 58 est aménagé dans la paroi de la tête qui vient en contact avec la portion supérieure 18b de la capsule. La tête de remplissage 50 comprend également un canal d'injection d'air 60 (élément d'injection d'air) qui est pratiqué dans au moins une partie de l'épaisseur ou hauteur de la tête. Ce canal comporte un orifice d'entrée 60a disposé au niveau d'une des parois de la tête et un orifice de sortie 60b aménagé à l'extrémité opposée du canal et qui débouche dans une zone de la tête entourant la tige 28. Plus particulièrement, l'orifice 60b débouche dans un espace annulaire 62 situé à l'entrée du logement axial 52.Firstly disassemble and then remove the dispensing plunger 22 (actuation part) of the device 10 from the figure 1 . Next, the device is capped (devoid of the pusher 22 and comprising the container and the pumping device), that is to say the free end 28b of the projecting rod 28 of the pumping device and the upper portion 18b of the capsule 18, of an injection and extraction head 50. The injection and extraction head 50 forms an example of a liquid extraction system from the apparatus 10 by gas injection. The head 50 comprises an axial housing 52 whose diameter corresponds to the external diameter of the free end 28b in order to accommodate a part of said free end. The head 50 also includes an axial duct 54 (channel 5 for conveying liquid forming an element for extracting the liquid external to the pumping device) extending the axial housing 52, with an internal diameter corresponding to the internal diameter of the part of the duct 28d , and opening onto the outside through an opening outlet opening 54a. The conduit 54 communicates with the rod 28 of the pumping device by its opposite end 54b. A peripheral seal 56 is arranged in the axial housing 52 around the free end 28b and a projecting portion of the rod. Similarly, a peripheral seal 58 is arranged in the wall of the head which comes into contact with the upper portion 18b of the capsule. The filling head 50 also comprises an air injection channel 60 (air injection element) which is formed in at least part of the thickness or height of the head. This channel comprises an inlet orifice 60a disposed at one of the walls of the head and an outlet orifice 60b arranged at the opposite end of the channel and which opens into an area of the head surrounding the rod 28. More particularly , the orifice 60b opens into an annular space 62 situated at the entrance to the axial housing 52.

La tête 50 intègre ainsi dans son corps à la fois un élément d'extraction de liquide et un élément d'injection de gaz.The head 50 thus integrates into its body both a liquid extraction element and a gas injection element.

Le canal 60 est ici orienté avec un angle d'inclinaison inférieur à 90° par rapport à l'axe du conduit axial 54.The channel 60 is here oriented with an angle of inclination less than 90 ° relative to the axis of the axial duct 54.

La tête 50 est montée sur le dispositif de pompage (tige saillante 28) et sur la partie externe de l'appareil qui ferme le récipient 12 et entoure la tige. On appuie ensuite sur la tête 50 axialement (ex : verticalement) afin d'actionner le dispositif de pompage dans une position actionnée basse et de verrouiller la tête dans cette position sur l'appareil par un ou des organes de verrouillage (ex : encliquetage). Ceci permet d'obtenir un contact étanche avec l'appareil et que la tête ainsi verrouillée exerce sur le dispositif de pompage une commande d'actionnement permanente qui maintient ledit dispositif en position actionnée.The head 50 is mounted on the pumping device (protruding rod 28) and on the external part of the device which closes the container 12 and surrounds the rod. The head 50 is then pressed axially (e.g. vertically) in order to actuate the pumping device in a low actuated position and to lock the head in this position on the device by one or more locking members (e.g. snap-fastening) . This makes it possible to obtain a sealed contact with the device and for the head thus locked to exert on the pumping device a permanent actuation control which maintains said device in the actuated position.

On notera que le ou les organes de verrouillage permettent par exemple à la tête de s'accrocher sur le fond du récipient 12 par la partie extérieure de celui-ci.It will be noted that the locking member or members allow for example the head to hang on the bottom of the container 12 by the external part of the latter.

A cet effet, les organes de verrouillage comprennent par exemple plusieurs pattes élastiques (ex : 2, 3...) qui s'étendent axialement (verticalement vers le bas) à partir de la face inférieure de la tête, entourent le récipient et comportent, à leur extrémité libre, un retour pour s'accrocher sur le bord externe du fond du récipient. Les pattes ont une hauteur (extension axiale) adaptée pour que, une fois accrochées (par retenue) sur le bord du fond du récipient, la tête exerce une poussée axiale permanente sur le dispositif de pompage (appui/enfoncement) et le contraigne ainsi dans une position actionnée.For this purpose, the locking members comprise for example several elastic tabs (ex: 2, 3 ...) which extend axially (vertically downwards) from the underside of the head, surround the container and include , at their free end, a return to hang on the outer edge of the bottom of the container. The legs have a height (axial extension) adapted so that, once hung (by retention) on the edge of the bottom of the container, the head exerts a permanent axial thrust on the pumping device (support / pushing) and thus forces it into an actuated position.

Selon une variante, les pattes peuvent être remplacées par un seul organe de verrouillage tel qu'une jupe entourant le récipient et venant, par un rebord interne terminal, se retenir sur le bord du fond du récipient.According to a variant, the legs can be replaced by a single locking member such as a skirt surrounding the container and coming, by a terminal internal rim, to be retained on the edge of the bottom of the container.

On notera que d'autres variantes peuvent être envisagées telles qu'un ou plusieurs organes de verrouillage solidaires de la tête et qui viennent se fixer sous le rebord externe du col du récipient (autour de la partie basse de la capsule 18).It will be noted that other variants can be envisaged, such as one or more locking members integral with the head and which are fixed under the external rim of the neck of the container (around the lower part of the capsule 18).

Selon une autre variante, un ou des organes de verrouillage indépendants de la tête peuvent venir enserrer à la fois la face supérieure de la tête (face comportant l'orifice 54a) et le fond du récipient et exercer la même fonction.According to another variant, one or more independent locking members of the head can enclose both the upper face of the head (face comprising the orifice 54a) and the bottom of the container and exercise the same function.

La tête est ainsi montée de manière amovible et étanche sur le dispositif de pompage.The head is thus mounted in a removable and sealed manner on the pumping device.

L'extraction de liquide par injection de gaz est prête à être effectuée.The liquid extraction by gas injection is ready to be carried out.

Comme expliqué ci-dessus, en position actionnée un ou plusieurs passages pour la reprise d'air sont aménagés dans l'appareil par l'intermédiaire de la mise en communication de l'espace périphérique 40 et du ou des trous 38 (entrée(s) d'air de compensation ouverte(s)). Dans la position d'extraction de la figure 4, ce ou ces passages sont ouverts et de l'air est introduit ou injecté sous pression, (par l'intermédiaire de moyens appropriés tels qu'un piston ou autre) via le canal d'injection 60 (à partir d'une source d'air sous pression non représentée) dans l'espace 62, puis dans le ou les passages à travers l'espace 40 et le ou les trous 38, pour déboucher dans le récipient. L'appui sur le dispositif de pompage rend celui-ci inopérant (désactivé). La pression d'injection varie dans une gamme qui s'étend de 200 mbars à 2 bars.As explained above, in the actuated position one or more passages for the air intake are arranged in the device by means of the communication of the peripheral space 40 and the hole (s) 38 (inlet (s ) open compensation air (s)). In the extraction position of the figure 4 , this or these passages are open and air is introduced or injected under pressure, (by suitable means such as a piston or the like) via the injection channel 60 (from a source d pressurized air (not shown) in the space 62, then in the passage or passages through the space 40 and the hole or holes 38, to open into the container. Pressing the pumping device makes it inoperative (disabled). The injection pressure varies over a range from 200 mbar to 2 bar.

Suite à cette introduction d'un volume d'air externe (air ou plus généralement gaz d'extraction), le volume d'air contenu dans le récipient augmente et, de ce fait, exerce une pression sur le liquide présent dans le récipient. Sous l'effet de cette poussée sur le liquide, ce dernier monte dans le dispositif de distribution par le tube 34. Le système de clapet 32 s'ouvre sous la pression du liquide (la bille 32b s'écarte de son siège 32a et monte). Le système de clapet 30 est ouvert (la bille 30c s'écarte de son siège 30a et monte) par conception en raison de l'appui sur le dispositif de pompage. Poussé par l'air injecté le liquide est ainsi contraint à circuler dans une partie du chemin normal d'acheminement du liquide (tube 34, clapet 30 ouvert, chemise 24, clapet 32 ouvert, tige 28) à travers le dispositif de distribution de liquide, puis dans le conduit axial 54 de la tête avant d'être expulsé hors de l'appareil par l'orifice 54a. La partie du chemin d'acheminement du liquide qui est située dans la partie du dispositif de distribution de liquide restant dans l'appareil après retrait du poussoir de distribution forme un élément d'extraction de liquide de l'appareil.Following this introduction of an external volume of air (air or more generally extraction gas), the volume of air contained in the container increases and, therefore, exerts pressure on the liquid present in the container. Under the effect of this thrust on the liquid, the latter rises in the distribution device through the tube 34. The valve system 32 opens under the pressure of the liquid (the ball 32b moves away from its seat 32a and rises ). The valve system 30 is open (the ball 30c moves away from its seat 30a and rises) by design due to the support on the pumping device. Pushed by the injected air the liquid is thus forced to circulate in a part of the normal path of liquid transport (tube 34, valve 30 open, jacket 24, valve 32 open, rod 28) through the liquid distribution device , then in the axial duct 54 of the head before being expelled from the device through the orifice 54a. The part of the liquid delivery path which is located in the part of the liquid distribution device remaining in the device after removal of the dispensing pusher forms a liquid extraction element of the device.

Le canal d'acheminement du liquide 54 forme, quant à lui, un élément d'extraction de liquide qui est présent dans le système 50 rapporté sur l'appareil de la figure 1 après retrait du poussoir de distribution.The liquid conveying channel 54 forms, for its part, a liquid extraction element which is present in the system 50 attached to the apparatus of the figure 1 after removing the dispensing button.

Le dispositif de pompage étant rendu inopérant lorsqu'il est actionné (enfoncé partiellement ou non), la quantité de liquide qui est extraite de l'appareil ne dépend plus de ce moyen (cylindrée de la pompe) mais du volume d'air injecté dans le récipient.The pumping device being rendered inoperative when it is actuated (partially depressed or not), the quantity of liquid which is extracted from the device no longer depends on this means (displacement of the pump) but on the volume of air injected into the recipient.

On notera que, pour pouvoir fonctionner, le dispositif de pompage de l'appareil de la figure 4 doit être actionné dans une position actionnée (non au repos) pour laquelle la ou les entrées d'air de compensation est ou sont ouvertes sur l'extérieur.It will be noted that, in order to be able to operate, the pumping device of the apparatus of the figure 4 must be actuated in an actuated position (not at rest) for which the compensation air inlet (s) is or are open to the outside.

Il n'est pas nécessaire que le dispositif de pompage soit dans une position actionnée basse en butée dans laquelle le chemin ou passage interne au dispositif de pompage pour l'acheminement du liquide est ouvert. Ce chemin peut en effet être ouvert, fermé ou partiellement ouvert selon les configurations de pompage (clapets à billes, clapets mécaniques qui par conception ne s'ouvrent que lorsque la pompe est appuyée en butée...).The pumping device does not have to be in an actuated low-stop position in which the path or passage internal to the pumping device for conveying the liquid is open. This path can indeed be open, closed or partially open depending on the pumping configurations (ball valves, mechanical valves which by design only open when the pump is pressed against the stop ...).

Dans l'exemple de la figure 4, le système de clapets 30, 32 est ouvert dans la position actionnée du dispositif de pompage.In the example of the figure 4 , the valve system 30, 32 is open in the actuated position of the pumping device.

Toutefois, selon une variante non représentée, la tête 50 est verrouillée sur le dispositif de pompage dans une position actionnée intermédiaire entre la position de repos (non actionnée) et la position actionnée la plus basse (en butée). Le système de clapets (donc le chemin d'acheminement du liquide) est alors partiellement ouvert ou fermé et il s'ouvrira complètement sous la pression de liquide (suite à l'injection de gaz sous pression).However, according to a variant not shown, the head 50 is locked on the pumping device in an actuated position intermediate between the rest position (not actuated) and the lowest actuated position (in abutment). The valve system (therefore the liquid delivery path) is then partially open or closed and it will open completely under liquid pressure (following the injection of gas under pressure).

Selon une variante non représentée, la tête est montée sur le dispositif de pompage de manière étanche avec celui-ci mais n'exerce pas une contrainte mécanique permanente sur le dispositif. Le dispositif de pompage est donc au repos et il n'est actionné, par pression/appui sur la tête 50, que lorsqu'on souhaite extraire du liquide d'injection de gaz (comme un poussoir de distribution).According to a variant not shown, the head is mounted on the pumping device in a sealed manner with the latter but does not exert a permanent mechanical stress on the device. The pumping device is therefore at rest and it is actuated, by pressure / pressing on the head 50, only when it is desired to extract the gas injection liquid (such as a dispensing plunger).

Selon encore une autre variante non représentée, la tête peut comporter plusieurs éléments d'injection de gaz (ex : canaux) et/ou plusieurs éléments d'extraction de liquide (ex : canaux).According to yet another variant, not shown, the head can comprise several gas injection elements (eg channels) and / or several liquid extraction elements (eg channels).

On notera que l'appareil de la figure 4 est représenté en position verticale mais il peut être utilisé dans une position inclinée par rapport à cette position.Note that the device of the figure 4 is shown in a vertical position but it can be used in an inclined position relative to this position.

La figure 5 illustre un deuxième mode de réalisation d'un appareil de distribution de liquide comportant un système d'extraction de liquide par injection de gaz.The figure 5 illustrates a second embodiment of a liquid distribution apparatus comprising a liquid extraction system by gas injection.

Dans un premier temps on démonte puis on retire le poussoir de distribution 22 (pièce d'actionnement) de l'appareil 10 de la figure 1. Ensuite, on coiffe l'appareil (dépourvu du poussoir 22), c'est-à-dire l'extrémité libre 28b de la tige 28 et la portion supérieure 18b de la capsule 18, d'une tête d'injection et d'extraction 70. La tête d'injection et d'extraction 70 forme un exemple d'un système d'extraction de liquide de l'appareil 10 par injection de gaz. La tête 70 comprend le logement axial 52 de la tête 50 de la figure 4. La tête 70 comprend également un canal interne d'acheminement de liquide 72 (le canal 72 forme un élément d'extraction du liquide externe au dispositif de pompage) qui prolonge le logement axial 52, de diamètre interne correspondant au diamètre interne de la partie de conduit 28d, et débouche sur l'extérieur par un orifice débouchant de pulvérisation 72a formant une buse de pulvérisation.Firstly disassemble and then remove the dispensing plunger 22 (actuation part) of the device 10 from the figure 1 . Next, the device (without the pusher 22), that is to say the free end 28b of the rod 28 and the upper portion 18b of the capsule 18, is capped with an injection head and extraction 70. The injection and extraction head 70 forms an example of a system for extracting liquid from the apparatus 10 by gas injection. The head 70 comprises the axial housing 52 of the head 50 of the figure 4 . The head 70 also includes an internal liquid delivery channel 72 (the channel 72 forms an element for extracting the liquid external to the pumping device) which extends the axial housing 52, of internal diameter corresponding to the internal diameter of the duct part 28d, and opens onto the outside through an orifice opening out from spray 72a forming a spray nozzle.

Le canal 72 forme un coude et comprend une première partie axiale 74, dans l'axe du logement axial 52 et une deuxième partie 76 qui s'étend perpendiculairement à la première partie et en éloignement de celle-ci, en direction de l'orifice 72a. La tête 70 comporte une excroissance latérale 70a dans laquelle s'étend une fraction de la deuxième partie 76 du canal et l'orifice 72a afin d'allonger le canal dans sa partie en amont de l'orifice. On notera toutefois que cette excroissance peut être omise dans une variante. L'orifice débouchant est alors aménagé directement dans la paroi verticale latérale du bloc formant la tête 70.The channel 72 forms an elbow and comprises a first axial part 74, in the axis of the axial housing 52 and a second part 76 which extends perpendicular to the first part and away from the latter, in the direction of the orifice. 72a. The head 70 has a lateral projection 70a in which extends a fraction of the second part 76 of the channel and the orifice 72a in order to lengthen the channel in its part upstream of the orifice. Note, however, that this outgrowth can be omitted in a variant. The opening orifice is then arranged directly in the lateral vertical wall of the block forming the head 70.

Le fonctionnement de l'appareil de la figure 5 intégrant le système 70 est identique à celui de l'appareil de la figure 4 : l'air injecté dans le récipient 12 par la ou les entrées d'air de compensation ouverte(s) propulse du liquide dans le dispositif de distribution de liquide (dépourvu du poussoir 22) et dans le canal 76 afin de l'expulser par l'orifice 72a sous la forme d'un jet de pulvérisation.The operation of the device of the figure 5 integrating the system 70 is identical to that of the apparatus of the figure 4 : the air injected into the container 12 through the open compensation air inlet (s) propels liquid into the liquid distribution device (devoid of the pusher 22) and into the channel 76 in order to expel it by the orifice 72a in the form of a spray jet.

Les mêmes avantages que ceux mentionnés pour le mode de réalisation de la figure 4 s'appliquent ici, ainsi que les différentes variantes décrites. La différence entre les deux modes tient à la tête d'extraction, à la forme sous laquelle le liquide sort de celle-ci, ainsi qu'à l'utilisation du liquide extrait.The same advantages as those mentioned for the embodiment of the figure 4 apply here, as well as the different variants described. The difference between the two modes is the extraction head, the form in which the liquid leaves it, as well as the use of the extracted liquid.

On notera que la tête 70 est analogue à un bouton poussoir tel que le bouton 22 à l'exception du fait qu'elle intègre un ou des éléments d'injection du gaz.It will be noted that the head 70 is analogous to a push button such as the button 22 except for the fact that it incorporates one or more gas injection elements.

Selon une variante non représentée, le coude à la jonction entre les première 74 et deuxième 76 parties peut être arrondi afin d'améliorer la circulation du liquide dans le canal.According to a variant not shown, the elbow at the junction between the first 74 and second 76 parts can be rounded in order to improve the circulation of the liquid in the channel.

La figure 6 illustre un troisième mode de réalisation d'un appareil de distribution de liquide comportant un système d'extraction de liquide par injection de gaz.The figure 6 illustrates a third embodiment of a liquid distribution apparatus comprising a liquid extraction system by gas injection.

Dans un premier temps on démonte puis on retire le poussoir de distribution 22 (pièce d'actionnement) de l'appareil 10 de la figure 1. Ensuite, on coiffe l'appareil (dépourvu du poussoir 22), c'est-à-dire l'extrémité libre 28b de la tige 28 et la portion supérieure 18b de la capsule 18, d'une tête d'injection et d'extraction 80. La tête d'injection et d'extraction 80 forme un exemple d'un système d'extraction de liquide de l'appareil 10 par injection de gaz. La tête 80 comprend le logement axial 52 de la tête 70 de la figure 5. La tête 80 comprend également un canal interne d'acheminement de liquide 82 (le canal 82 forme un élément d'extraction du liquide externe au dispositif de pompage) qui prolonge le logement axial 52, de diamètre interne correspondant au diamètre interne de la partie de conduit 28d, et débouche sur l'extérieur par un orifice débouchant 82a.Firstly disassemble and then remove the dispensing plunger 22 (actuation part) of the device 10 from the figure 1 . Next, the device (without the pusher 22), that is to say the free end 28b of the rod 28 and the upper portion 18b of the capsule 18, is capped with an injection head and extraction 80. The injection and extraction head 80 forms an example of a system for extracting liquid from the apparatus 10 by gas injection. The head 80 comprises the axial housing 52 of the head 70 of the figure 5 . The head 80 also comprises an internal liquid conveying channel 82 (the channel 82 forms an element for extracting the liquid external to the pumping device) which extends the axial housing 52, of internal diameter corresponding to the internal diameter of the part of conduit 28d, and opens to the outside through a through hole 82a.

Le canal 82 comprend deux parties 84, 86 reliées entre elles à angle 30 droit comme le canal 72 de la figure 5.Channel 82 comprises two parts 84, 86 connected to each other at a right angle like channel 72 of the figure 5 .

La tête 80 comporte également, par rapport au corps principal, une excroissance latérale 80a dans laquelle s'étend une fraction de la deuxième partie 86 du canal et l'orifice 82a afin de former un bec verseur (robinet). La deuxième partie 86 s'étend ainsi suivant une première fraction 86a perpendiculairement à la première partie 84 et en éloignement de celle-ci, puis suivant une deuxième fraction 86b à l'intérieur de l'excroissance latérale 80a. Cette deuxième fraction 86b est d'abord rectiligne, puis est courbée vers le bas jusqu'à l'orifice 82a.The head 80 also comprises, relative to the main body, a lateral protuberance 80a in which extends a fraction of the second part 86 of the channel and the orifice 82a in order to form a pouring spout (tap). The second part 86 thus extends along a first fraction 86a perpendicular to the first part 84 and away from the latter, then along a second fraction 86b inside the lateral projection 80a. This second fraction 86b is first rectilinear, then is curved downward to the orifice 82a.

Le fonctionnement de l'appareil de la figure 6 intégrant le système 80 est sensiblement identique à celui de l'appareil de la figure 5 : l'air injecté dans le récipient 12 par la ou les entrées d'air de compensation ouverte(s) propulse du liquide dans le dispositif de distribution de liquide (dépourvu du poussoir 22) et dans le canal 86 afin de l'expulser par l'orifice 82a du bec verseur sous la forme de gouttes de liquide.The operation of the device of the figure 6 integrating the system 80 is substantially identical to that of the apparatus of the figure 5 : the air injected into the container 12 via the open compensation air inlet (s) propels liquid into the liquid distribution device (devoid of the pusher 22) and into the channel 86 in order to expel it by the orifice 82a of the pouring spout in the form of drops of liquid.

Comme représenté sur la figure 6, un autre récipient ou flacon 90 ouvert est disposé en dessous du bec verseur 80a afin de recueillir les gouttes de liquide extraites du récipient 12. Ceci permet de remplir le récipient 90.As shown in the figure 6 , another open container or bottle 90 is placed below the pouring spout 80a in order to collect the drops of liquid extracted from the container 12. This makes it possible to fill the container 90.

Le récipient 90 illustré sur la figure 6 présente un filetage externe 92 qui permet la fixation sur l'ouverture 94 d'une pompe ou d'un bouchon non représentés.The container 90 illustrated in the figure 6 has an external thread 92 which allows the attachment to the opening 94 of a pump or a plug not shown.

Dans le domaine de la parfumerie cet agencement permet de réaliser des échantillons dans des récipients tels que le récipient 90 qui sont de plus petite contenance que le récipient 12. Pour ce faire, le dispositif de pompage 20 du dispositif de distribution de liquide montés sertis sur le récipient 12, n'a donc pas besoin d'être démonté grâce au procédé d'extraction de liquide selon l'invention qui vient d'être décrit.In the perfume industry, this arrangement makes it possible to produce samples in containers such as the container 90 which are of smaller capacity than the container 12. To do this, the pumping device 20 of the liquid distribution device mounted crimped on the container 12, therefore does not need to be dismantled using the liquid extraction method according to the invention which has just been described.

Les mêmes avantages que ceux mentionnés pour le mode de réalisation de la figure 5 s'appliquent ici, ainsi que les différentes variantes décrites. La différence entre les deux modes tient à la tête d'extraction, à la forme sous laquelle le liquide sort de celle-ci, ainsi qu'à l'utilisation du liquide extrait.The same advantages as those mentioned for the embodiment of the figure 5 apply here, as well as the different variants described. The difference between the two modes is the extraction head, the form in which the liquid leaves it, as well as the use of the extracted liquid.

On notera qu'un autre gaz que l'air peut être utilisé. Par exemple un gaz dépourvu d'oxygène afin de limiter l'oxydation du liquide du récipient peut être utilisé. De l'azote ou un autre gaz inerte ou d'autres gaz tels que du fréon ou autres gaz similaires pour leur capacité de compression peuvent être utilisés.Note that another gas than air can be used. For example a gas deprived of oxygen in order to limit the oxidation of the liquid of the container can be used. Nitrogen or other inert gas or other gases such as freon or the like for their compression capacity can be used.

Claims (12)

  1. Method for extracting liquid from a liquid dispenser (10) which comprises:
    - a liquid container (12),
    - a liquid dispensing device (14) which is able to take up liquid from the container and convey it along a path as far as at least one liquid outlet (54a; 72a; 82a) of the device so as to dispense the taken-up liquid to outside the dispenser, the dispenser comprising at least one compensating-air inlet (40) for letting air into the container and which, when open, by letting a volume of air in from outside makes it possible to compensate for a volume of liquid taken up by the device (14), the device (14) comprising a pumping device (20) for pumping the liquid contained in the container, said pumping device being able to occupy a rest position and, under the action of an actuating command, one or more actuated positions in which or in each of which said at least one compensating-air inlet is open to the outside, characterized in that the method comprises a step of injecting a volume of extraction gas under pressure into the container through said at least one compensating-air inlet open to the outside when the pumping device is in an actuated position, so as to apply pressure to the liquid contained in the container in order to cause it to flow along the liquid-conveying path and thus extract a predetermined quantity of liquid from the dispenser, the injection of the volume of extraction gas into the container through said at least one open compensating-inlet having the effect of expelling said predetermined quantity of liquid from the container.
  2. Method according to Claim 1, characterized in that it comprises a step of actuating the pumping device so that it occupies an actuated position.
  3. Method according to Claim 1 or 2, characterized in that the liquid container (12) is provided with an opening (16) in which the liquid dispensing device (14) is mounted, said at least one compensating-air inlet (40) being situated level with said opening of the container and being able, on the one hand, to be open to the outside in order to allow compensating air from outside to be let into the container when the pumping device (20) is in the or an actuated position and, on the other hand, to be closed off when the pumping device is in the rest position.
  4. Method according to one of Claims 1 to 3, characterized in that the dispensing device comprises, mounted removably on the pumping device, a system (50; 70; 80) for injecting a volume of gas and for extracting liquid from the dispenser under the action of the injected volume of gas.
  5. Method according to Claim 4, prior to the step of injecting a volume of extraction gas, the method comprises a step of mounting the liquid extraction system on the pumping device as a replacement for an actuating component which allows only the liquid pumped from the container to be dispensed to outside the dispenser.
  6. Liquid dispenser comprising:
    - a liquid container (12),
    - a liquid dispensing device which is able to take up liquid from the container and convey it along a path as far as at least one liquid outlet (54a; 72a; 82a) of the device so as to dispense the taken-up liquid to outside the dispenser,
    - at least one compensating-air inlet (40) for letting air into the container and which, when open, by letting a volume of air in from outside makes it possible to compensate for a volume of liquid taken up by the device (14), said device (14) comprising a pumping device (20) for pumping the liquid contained in the container, said pumping device being able to occupy a rest position and, under the action of an actuating command, one or more actuated positions in which or in each of which said at least one compensating-air inlet is open to the outside, characterized in that the dispensing device comprises a system (50; 70; 80) that is configured to, on the one hand, inject a volume of gas into the container through said at least one open compensating-air inlet and, on the other hand, extract liquid under the action of the injected volume of gas.
  7. Dispenser according to Claim 6, characterized in that the injection and extraction system (50; 70; 80) is mounted removably on the pumping device (20).
  8. Dispenser according to Claim 6 or 7, characterized in that the injection and extraction system comprises:
    - at least one injection element (60) for injecting a volume of extraction gas through said at least one compensating-air inlet,
    - at least one extraction element (54; 72; 82) for extracting a predetermined quantity of liquid from the dispenser and which comprises said at least one liquid outlet (54a; 72a; 82a).
  9. Dispenser according to Claim 8, characterized in that said at least one extraction element for extracting the predetermined quantity of liquid from the dispenser comprises a liquid conveying duct (54; 72; 82), a first, inlet, end of which communicates with the pumping device and an opposite second, outlet, end of which is in communication with the outside, the opposite second, outlet, end comprising a choice of: an outlet orifice (54a), one or more spray orifices (72a), a pouring spout (80a).
  10. Dispenser according to Claim 8 or 9, characterized in that said at least one injection element for injecting a volume of gas comprises one or more gas injection ducts.
  11. Dispenser according to one of Claims 6 to 10, characterized in that the injection and extraction system is mounted in a sealed manner on the pumping device (20).
  12. Dispenser according to one of Claims 6 to 11, characterized in that the injection and extraction system is mounted on the pumping device in such a way as constantly to apply an actuating command thereto so as to keep the pumping device in an actuated position.
EP15248033.1A 2014-04-04 2015-04-03 Method for extracting liquid from an apparatus for dispensing liquid by gas injection Active EP2926914B1 (en)

Applications Claiming Priority (1)

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FR1452998A FR3019531B1 (en) 2014-04-04 2014-04-04 METHOD FOR EXTRACTING LIQUID FROM A DEVICE FOR DISPENSING LIQUID BY GAS INJECTION

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EP2926914B1 true EP2926914B1 (en) 2020-03-18

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US (1) US9834369B2 (en)
EP (1) EP2926914B1 (en)
ES (1) ES2791361T3 (en)
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ES2791361T3 (en) 2020-11-04
EP2926914A1 (en) 2015-10-07
US20150284175A1 (en) 2015-10-08
PT2926914T (en) 2020-05-05
FR3019531A1 (en) 2015-10-09
US9834369B2 (en) 2017-12-05
FR3019531B1 (en) 2019-08-09

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