法国专利FR3047909A1 EXTRACTION AND FILTRATION-COMPRESSION DEVICE

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专利摘要:
Device for extracting a liquid composition by filtration of a mixture, the device comprising: - a container (25) defining an internal volume (352), - a plunger element (450) comprising a piston (477) and a filter (505) , and mounted movably in the interior volume of the container, - an elastic compression member (445), wherein, in a configuration of the device where the mixture is disposed between the bottom of the tank and the plunger member, the compression member is configured to exert a compressive force on the mixture via the piston, so as to extract the liquid composition by filtering the mixture through the filter.
公开号:FR3047909A1
申请号:FR1651472
申请日:2016-02-23
公开日:2017-08-25
发明作者:Thomas Boudier
申请人:Thomas Boudier；
IPC主号:

专利说明:

The present invention relates to the preparation of a liquid composition, in particular for electronic cigarettes.
Liquid compositions for electronic cigarettes consist of a solvent in which at least one ingredient is dissolved and / or dispersed, and are also called "e-liquids", intended to be vaporized to be inhaled. The invention also relates to liquid compositions comprising an essential oil that can be ingested or diffused to disperse an aroma.
Users of liquid compositions, and more particularly those who inhale a vaporized e-liquid, generally wish to know precisely their constitution, because some of the constituents that compose them can have an adverse effect on health. However, there are still liquid compositions sold without specifying any information regarding what they contain.
In addition, many users would like to have new compositions comprising mixtures of various flavors not available commercially. The choice is currently limited to ranges of liquid compositions manufactured in industrial quantities by dispersing and / or dissolving ingredients in a solvent volume greater than several liters, or even several cubic meters, as described for example in EP 2 543 265 A2. . To obtain a composition personally adapted to their wishes, they are then forced to mix compositions with the desired aromas. The preparation of such a mixture can be long, since it may require a period of maturation of the flavors in the solvent. For example, at room temperature, the maturation period of the tobacco flavors in a mixture of propylene glycol and vegetable glycerin is about fifteen days.
There is also known an apparatus for domestic use and which makes it possible to prepare butters and flavored oils, useful especially for culinary preparations. However, this apparatus requires high heating powers of the order of 800 W to heat at least 475 cm3 of a mixture comprising a solvent and an ingredient. In addition, the ingredient and the solvent may come into contact with the inner and hot wall of the container, which affects the quality of the butter and flavored oils obtained. On the other hand, after heating the mixture, to obtain a liquid composition, the user comes to apply a force with his hand coated with a glove on the mixture arranged on a filter so that the liquid composition extracted from the mixture flows at through the filter. Since many solvents consist of fatty, viscous and wetting substances, part of the mixture adheres to the glove and the filter and can not be filtered. As a result, the efficiency of this apparatus is particularly low and does not allow the manufacture of liquid composition volumes smaller than 475 cc. In addition, the extraction step requires the use of a glove to avoid dirtying the user. It is also inconvenient for the user who must come and compress the mixture against the filter many times to promote the extraction of the liquid composition. Finally, it requires a tedious and cautious cleaning of various elements of the device, including the filter and the agitation member of the mixture.
There is therefore a need for a domestic appliance for manufacturing a volume of liquid composition suitable for personal use, and to overcome the disadvantages described above. The invention seeks to satisfy at least this need and proposes for this purpose, according to a first aspect, an apparatus for preparing a liquid composition, preferably an e-liquid for an electronic cigarette, the apparatus comprising: a vessel shaped to receive a water bath and defining a filling volume less than or equal to 200 cm3, better still less than or equal to 150 cm3, or even less than or equal to 100 cm3, - a removable container shaped to contain an ingredient and a solvent the container being at least partially housed in the vessel; - a heating device adapted to heat the ingredient and the solvent via the water bath, so as to dissolve and / or disperse the ingredient at least partially; in the solvent and thus prepare said liquid composition, the heating device comprising a heating element whose maximum heating power is less than or equal to 200 W. Apparatus according to this first aspect of the invention has a ratio of the exchange surface of the container adapted to be in contact with the water bath to the volume of filling the tank, promoting optimal transfer of the heat produced by the element heating to the ingredient and the solvent. It is thus possible to prepare, with high energy efficiency, a volume of liquid composition suitable for personal consumption.
By "filling volume" of the tank is considered the maximum volume of liquid that can be poured into the tank when the container is not disposed and when the device rests on a support flat, without the liquid does not overflows the tank.
Preferably, the apparatus is domestic and for personal use. "Domestic appliance for personal use" means an appliance for the manufacture of a liquid composition for personal use. In contrast, any apparatus for industrially manufacturing a liquid composition and especially for commercial purposes is not a domestic appliance for personal use. Of course, a domestic appliance for personal use can be implemented outside the home and / or by several people.
As will become clear later, the container is not limited to containing a single ingredient and / or a single solvent. Several ingredients and / or several solvents may be disposed therein.
Preferably, the heating device is arranged so that the temperature of the ingredients is greater than or equal to 40 ° C and less than or equal to 120 ° C. Such a temperature range is well suited for dissolving and / or dispersing a wide range of ingredients in a wide range of solvents.
Preferably, the heating element is a thermistor made of a ceramic material with a positive temperature coefficient.
Preferably, the maximum heating power of the heating element is less than or equal to 100 W, preferably less than or equal to 50 W, better still less than or equal to 30 W, in particular between 20 W and 30 W.
Preferably, the heating device further comprises a metal heat sink, preferably having more than 90% by weight of aluminum.
Preferably, the heat sink comprises a housing in which the heating element is housed, preferably inserted in force.
Preferably, the tank comprises a skirt extending along an axis and defining at its upper end an opening. The skirt can be closed at its lower end by a bottom extending in a direction transverse to the axis of the skirt and coming from material with the skirt. In a preferred embodiment, the skirt is bonded, for example by means of a seal, at its lower end to the heat sink, which then defines the bottom of the tank.
Moreover, the container may comprise a solvent and / or ingredient, in particular comprising nicotine. The apparatus according to the first aspect of the invention may comprise a removable cap according to the second aspect of the invention as described below, the container being shaped to be fixed, preferably screwed, to the body of the cap.
Furthermore, according to the first aspect, the invention also relates to a process for preparing a liquid composition, preferably an e-liquid for an electronic cigarette, the method comprising a step of heating a water bath, preferably a water, by means of a heating device of an apparatus according to the invention, the water bath being arranged between the tank and the container so that the temperature of a solvent and an ingredient contained in the container is between 40 ° C and 120 ° C for a period greater than or equal to 1 hour, or even greater than or equal to 2 hours, and preferably less than or equal to 12 hours, in order to dissolve and / or disperse at least partially the ingredient in the solvent and thereby prepare said liquid composition.
Preferably, the solvent is chosen from water, a hydrocarbon, an alcohol, in particular a glycol, a halogenated hydrocarbon, a ketone, an ester, an ether, in particular a glycol ether and their mixtures. More preferably, the solvent may be chosen from propylene glycol, glycerol, in particular vegetable, water, and mixtures thereof. The solvent is preferably compatible with use in an e-liquid.
Preferably, the ingredient comprises nicotine and / or is selected from a plant element, for example a seed, a leaf, especially dried, a fruit peel, a bark, an oil, and mixtures thereof.
For example, to prepare an e-liquid having as an ingredient nicotine and a solvent selected from propylene glycol and / or glycerin, a temperature of the ingredients and the solvent between 60 ° C and 80 ° C is well suited.
Furthermore, the method may comprise a step according to which the liquid composition is disposed in a tank of an electronic cigarette.
According to a second aspect, the invention proposes a removable cap for closing a container, the cap comprising a body shaped to be fixed, preferably screwed, to the container and having a housing in which is at least partially disposed a micromotor for driving a stirring member contained in the interior volume of the container, the maximum speed of rotation of the micromotor being less than or equal to 1000 revolutions per minute, preferably less than or equal to 500 revolutions per minute, or even less than or equal to 200 revolutions per minute; .
The stopper according to the second aspect of the invention, when attached to the container, prevents aromas and / or active ingredients from the ingredients, which are volatile compounds, from escaping the container. Furthermore, the maximum rotational speed of the micromotor is adapted to stir the mixture of solvent and ingredient, thus accelerating the dissolution and / or dispersion of the ingredient in the solvent. Finally, the arrangement of the micromotor in its housing results in a plug of compact shape well suited for home use.
By "micromotor", it includes a motor, preferably electric, whose size, defined as the diameter of the sphere circumscribed to the motor, is less than 5 cm.
By "maximum rotational speed" of the micromotor means the maximum speed of rotation of the transmission shaft at the output of the micromotor.
Preferably, the micromotor is disposed integrally in the housing, and it is advantageously arranged to be contained in the interior volume of the container, when the cap is attached to the container.
Preferably, the diameter of the body is less than 100 mm, more preferably less than 50 mm.
Preferably, the height of the plug is less than 70 mm.
Preferably, the body is formed of at least first and second parts bonded together by welding, in particular by ultrasound. The invention according to the second aspect further relates to an assembly comprising a cap according to the invention and a container shaped to be fixed to the cap.
Preferably, the assembly comprises a stirring member connected, preferably fixed rotatably, to the micromotor, the stirring member comprising a shaft and blades, the shaft and the blades being shaped so as to have the shape of a blade. an anchor or forming a helix.
Preferably, the micromotor is electric. The invention according to the second aspect of the invention also relates to an apparatus for preparing a liquid composition, preferably an e-liquid for an electronic cigarette, comprising a tank shaped to at least partially house an assembly as defined above. and to contain a water bath, preferably water, disposed between the tank and the assembly.
In particular, the apparatus according to the second aspect may comprise at least one of the characteristics of the apparatus according to the first aspect of the invention. The invention according to the second aspect of the invention furthermore relates to a method for preparing a liquid composition, preferably an e-liquid for an electronic cigarette, the method comprising a step of actuating the micromotor of a plug according to the second aspect of the invention closing a container having an ingredient and a solvent, for rotating a rotator member fixed rotatably to the micromotor so as to dissolve and / or disperse at least partially the ingredient in the solvent and thereby prepare said liquid composition.
Preferably, the method comprises a step, carried out before or after or together with the step of operating the micromotor, according to which the container is placed in the tank of an apparatus according to the invention, and heating the ingredient and the solvent via the water bath.
According to a third aspect, the invention relates to a device for extracting a liquid composition by filtration of a mixture, the device comprising: - a container defining an internal volume, - a plunger element comprising a piston and a filter, and mounted movably in the internal volume of the container, - an elastic compression member, wherein, in a configuration of the device where the mixture is disposed between the bottom of the tank and the plunger element, the compression member is configured to exert a compressive force on the mixture via the piston, so as to extract the liquid composition by filtration of the mixture through the filter.
The device according to the third aspect of the invention optimizes the amount of liquid composition extracted from the mixture, particularly with respect to a conventional device where a mixture to be filtered is poured on a filter and the extracted liquid composition flows under the effect of gravity through the filter. In addition, as will become more apparent later, when the device is arranged so that the extracted liquid composition is poured out of the container by gravity flow and there is still some mixture to be filtered in the bottom of the container, the filtration and extraction of the remaining liquid composition are accelerated. In addition, the device according to the invention can easily be removed, which facilitates cleaning. The device according to the third aspect of the invention also allows an extraction that does not dirty the user.
Preferably, one end is fixed relative to the container and another end of the compression member is in contact with the plunger element.
Preferably, the compression member is a spring, for example a leaf spring or preferably a helical spring.
Preferably, the end of the compression member is in contact with a removable mounted cap, preferably screwed on the container and closing, preferably hermetically, the container.
Preferably, the piston has an outer groove in which a seal, preferably O-ring is housed, so as to prevent the flow of the mixture between the piston and the side wall of the interior volume.
Preferably, the filter is at least partially or completely made of a material, preferably sintered, and porous, preferably sintered and porous stainless steel.
Preferably, the piston has a cavity in which the filter is at least partially, preferably entirely, housed.
Preferably, the cavity has at least one opening located on either side of the filter, so as to define a flow path of the liquid composition through the plunger element.
Preferably, a shoulder, preferably annular, is formed on the inner wall of the piston, and the filter rests by its periphery on the shoulder.
Preferably, the piston is defined by the assembly of a press body and a press head, the press head having a bore in which the press body is fixed, preferably screwed. The invention according to the third aspect also relates to a method for extracting a liquid composition by filtration of a mixture to be filtered contained in the container of a device according to the third aspect of the invention, comprising a step according to which a force is applied to the elastic compression member so as to compress it, so that the elastic compression member pushes the mixture to be filtered through the piston to the filter to thereby extract the liquid composition by filtration of the mixture to filter.
Preferably, the compressive force is applied to the elastic compression member by fixing, preferably screwing, a cap on the container, one end of the compression member being in contact with the cap. Other features and advantages of the various aspects of the invention will become apparent on reading the following detailed description of embodiments thereof and on examining the appended drawing, in which: FIG. 1 is a perspective view of an apparatus for preparing a liquid composition according to an embodiment, - Figure 2 is a front view of the apparatus illustrated in Figure 1, - Figure 3 is a sectional view. 3 is an exploded view of part of the apparatus shown in FIG. FIG. 6 is a sectional view along the plane (DD) of FIG. 5, FIG. 7 is a front view of the heat sink, FIG. 8 is a bottom view, in the direction V, of FIG. heat sink, - Figure 9 is a view of the dissipator in section along the plane (F- F), Figure 10 illustrates a nail for fixing the heating element, - Figure 11 is a front view of a skirt of the apparatus, - Figure 12 is a section of the skirt in the plane (BB) FIG. 13 is a side view of the skirt, FIG. 14 is a section of the skirt according to the plane CC, FIG. 15 is a front view of the container, FIG. of the container in the plane (GG), - Figure 17 is an exploded view of a stirring plug and various stirring members, - Figure 18 is a front view of the body of the stirring plug, FIG. 19 is a view of the body of the stirring plug in section on the plane (II), FIG. 20 is a front view of a cap of the stirring plug, FIG. 21 is a view of the cap of the plug. Figure 22 is a view from below in the direction W of the cap of the stirring plug, - Figure 23 shows in perspective a set of stirring in section along the plane (JJ); e having the container on which is mounted an extraction plug, - Figure 24 is a section along the plane (AA) of the assembly illustrated in Figure 23, Figure 25 is an exploded view of different components of the device d Figure 26 is a front view of a press body, Figure 27 is a sectional view along the plane (KK) of the press body, Figure 28 is a front view of a head. FIG. 29 is a section along the plane (KK) of the press head, FIG. 30 is a front view of the apparatus in a particular configuration, FIG. 31 is a section along the plane (AA). of the apparatus shown in Fig. 30, and Fig. 32 is a top view of the agitation plug shown in Fig. 18.
In the various figures, identical references are used to designate identical or similar elements.
FIG. 1 illustrates an exemplary embodiment of an apparatus 5 for preparing a liquid composition, extending along a longitudinal axis X. The apparatus 5 comprises a base 10 and a skirt 15 mounted on the base. A removable container 25, surmounted by a cap 30 screwed onto the container, is disposed in the interior volume defined at least partially by the skirt.
The base 10 has the general shape of a hollow and straight tube of circular section, having lower and upper openings 40 and 45. Preferably, it is formed of a material having a thermal conductivity of less than 1 W.rrf.K In this way, the risk of burns of a user who grasps the appliance by gripping the base when the heater of the appliance heats the water bath is limited. is such that it retains its shape under the effect of its own weight at a temperature above 100 ° C. It may in particular be a polymeric material, especially a thermoplastic, for example, a mixture of acrylonitrile butadiene styrene ( ABS) and polycarbonate (PC) also called ABS / PC.
The base is shaped to house a heating device, including a heat sink 50 and a heating element 55. The base has at the upper opening 45 an annular groove 60 on which rests an annular ring 65 peripheral of the heat sink. In addition, the base has a positioning pin 68 and mounting lugs 70a-c, for example integral with the base, disposed on the inner wall 75 of the base and extending radially inwardly. The heat sink has meanwhile grooves 80a-c formed within the annular ring 65, which are each engaged in a respective mounting lug. One of the grooves is engaged in the positioning pin disposed under one of the mounting lugs to, on the one hand, facilitate the positioning of the heat sink on the base during its mounting and, on the other hand, prevent rotation around the X axis of the heat sink relative to the base.
The heat sink 50 has a general shape of tubular cup 78 of circular section defining a container 82 whose flat bottom has a central rib 85 projecting along the X axis and extending along a diameter of the cup. The cup is surmounted by the peripheral annular ring 65. As can be seen in FIG. 4, heat diffusion fins 90 connect the peripheral annular ring to the central rib, thus forming a radiator intended to come into contact with the water bath. Furthermore, the heat sink has a housing in which the heating element 55 is disposed. As illustrated for example in Figure 1, the housing is formed by a recess 95 in the form of a parallelepiped slit formed in the rib and open on the face of the cup opposite the bottom of the container.
Preferably, the heat sink is monolithic. It can be obtained for example by die casting.
In order to ensure efficient heat conduction, the heat sink is preferably of a metallic material. An advantageous metallic material is an aluminum alloy, especially comprising more than 90% aluminum, in particular an aluminum alloy 6082-T6 or 7075-T6.
Preferably, the heating element is forcibly housed in the housing, which optimizes the contact area between the heating element and the heat sink, thereby ensuring efficient heat transfer from the heating element to the heat sink. .
As illustrated in FIGS. 3 and 4, in order to optimize the heat transfer, the heating element preferably has a shape complementary to that of the housing of the heat sink in which it is inserted. If necessary, this form is that of a parallelepiped block.
In the example illustrated in the drawing, the heating element is a thermistor made of a ceramic material with a positive temperature coefficient, also called ceramic material CTP. Thus, it is not necessary to have a thermostat to regulate the temperature of the heating element, since the latter is defined by the resistive properties of the ceramic material CTP and by the properties of the heat sink. Thus, the heating element and the heat sink may be such that the heating device is adapted so that the heating temperature of the ingredient and the solvent contained in the container is greater than or equal to 40 ° C and less than or equal to 120 ° C.
In particular, the apparatus preferably does not include a thermostat.
To facilitate the placement of the heating element in the housing and keep it in place, a nail 100, preferably of high density polyethylene (PHED) or ABS / PC, is attached to the heat sink, for example to means of lugs 102a-b engaged in corresponding recesses 105a-b formed in the heat sink, so that the heating element is sandwiched and held between the nail and the heat sink.
Furthermore, the lower opening 40 of the base is closed by a cap 110 which may be made of a polymer material, in particular a thermoplastic, for example an ABS / PC. The cover has a disk-like shape and comprises on its upper face 115 disposed opposite the base of the grooves 120a-c which receive corresponding reliefs 125 protruding from the wall of the base, so as to define a bayonet fixing of the cover on the basement. In addition, the underside of the cover has an annular groove 130 in which is housed a washer 135 of a non-slip elastomeric material. Furthermore, the hood has lateral grooves 140a-c arranged so that once the hood is fixed on the base, the lateral grooves define air passages through which the air inside the base, heated by the heater, can flow out of the base, thus cooling the device. For this purpose, as illustrated in FIG. 3, the assembly formed by the cover and the washer is such that the base is not in contact with the support on which the apparatus is intended to be arranged, thereby facilitating the passage of the air out and towards the interior of the base. For example, the distance e measured along the longitudinal axis X between the underside 145 of the base and the face 150 of the washer intended to be in contact with the support is between 1 mm and 2 mm.
The tubular wall of the base also has a through hole 155 in which is housed a light button 158. It presents opposite the hole bores 160a-b through which are arranged power connectors 165a-b fixed by means of nuts 170a-b and washers 175a-b, which allow to connect the device to a source of electrical power, for example a mains block, and preferably providing direct current.
The light button comprises a light indicator 180 made of a thermoplastic material, preferably transparent, chosen from polycarbonate (PC), polymethyl methacrylate (PMMA) and polyethylene glycol terephthalate (PETG), in which an element is inserted and maintained. pusher 185, for example aluminum. The light button is held in the housing formed by the first hole by means of wedges 190a-b disposed on an electronic card 195 inserted in the rails formed in the wall of the base and extending axially. When the pusher element is actuated in a radial direction and inwardly of the base, it pushes a welded button on the electronic card. Light-emitting diodes are soldered to the electronic board and illuminate the indicator light when the unit is electrically powered.
The electronic board is electrically connected to the power connectors on the one hand and to the PTC resistor on the other hand. It includes a microcontroller adapted to control the heating temperature and the heating time of the device, as well as a Bluetooth® Low Energy module allowing remote control of the device.
As illustrated in FIGS. 4, 6, 11 and 13, the skirt 15 is mounted on the base 10 by means of a bayonet fixing system whose male part is formed by the radially extending mounting lugs 70a-c. to the inside of the inner wall of the base and the female part is defined by grooves 200a-c dug in the side wall of the skirt.
A ring seal 205 is disposed between the heat sink and the skirt. Once the skirt mounted on the base, the seal is maintained under compression in a groove defined by the heat sink, the skirt and the base, to ensure a water bath seal.
The skirt has a general shape of a hollow tube defining upper and lower openings 210 and 215 at each of its respective ends. The upper opening is partly defined transversely to the X axis of the apparatus and is extended along a first notch 220, preferably of semi-elliptical shape, and a second notch 225 of shorter length disposed radially with respect to the X axis opposite the first notch. The first and second notches are both defined on the side wall of the skirt. The function of these indentations will be described in more detail later.
Thus, the skirt, the O-ring and the heat sink thus define the vessel 230 of the apparatus. Thus, the heat sink, and in particular the fins of the radiator, is in contact with the water bath
In the example illustrated in Figure 2, where the device is disposed in the use position for the preparation of a liquid preparation, that is to say with the X axis substantially parallel to the direction of gravity and the apparatus resting by means of the antiskid washer on a support, the filling volume is reached when the level of the liquid in the tank reaches the bottom 228 of the first notch.
The skirt also has on its outer wall 235 a graduated scale, allowing the user to view the amount of liquid introduced into the tank, in the presence of the container in the tank.
Furthermore, the skirt has an annular groove 240 extending radially from the inner wall of the skirt towards the inside, and on which the container rests, for example by means of an annular flange 245 projecting from the external wall 250 of the container. Preferably, the annular groove is disposed on the wall so that the container is arranged vertically inside the skirt. Preferably, it is arranged so that the bottom 265 of the container is remote from the bottom of the tank when the container is introduced, and preferably attached to the tank. Thus, the water bath can fill the space between the bottom of the tank and the bottom of the container, thus allowing a homogeneous conduction of heat to the ingredients and the solvent contained in the container.
To lock the container on the skirt so as to avoid on the one hand that it does not rise under the action of the buoyancy force of Archimedes when the tank is filled with the water bath and on the other hand to ensure the stability of the tube within the vessel during agitation of the mixture, the skirt may comprise at least one groove 255, preferably at least two, formed on the annular wall, preferably as illustrated in FIG. 12, at the level of the annular groove 240. The container may then comprise at least one corresponding relief 260, preferably two, preferably arranged (s) at the level of the annular collar, adapted (s) to engage in the respective groove thus forming a bayonet attachment of the container on the skirt.
Preferably, the vessel and the vessel are shaped so that the water bath fill volume is less than or equal to 100 cm 3, preferably less than or equal to 50 cm 3, or even less than or equal to 40 cm 3. A 35 cm3 water bath filling volume is well suited.
By "water bath filling volume" is considered the maximum volume of water bath that can be poured into the tank when the container is placed in the tank, preferably fixed by means of a bayonet attachment as described previously, between the wall of the tank and the container, when the device rests on a support flat, without the water bath overflowing the tank.
The skirt may be constituted by an optically translucent or preferably transparent material. Preferably, the skirt is made of a polymeric material. In particular, the skirt may be made of an optically transparent polycarbonate (PC), which gives the skirt resistance to mechanical and thermal shock.
With regard to its dimensions, preferably the tank has a height, measured along the axis X of the apparatus of between 100 mm and 130 mm and / or an outside radius of between 15 mm and 25 mm and / or a thickness wall thickness between 2.5 mm and 5 mm. The skirt illustrated in FIG. 11 has a height of 105 mm, an outside radius of 22.5 mm and a wall thickness of between 2.5 mm and 5 mm.
Moreover, the height H of the apparatus illustrated in the drawing is equal to 210 mm, and the diameter <PS of the base is equal to 45 mm.
As illustrated in FIGS. 15 and 16, the container preferably has the shape of a cylindrical tube of revolution and hollow, one end of which is closed by a bottom 265 extending transversely to the axis of revolution of the cylinder, and the opposite end defines an opening. As previously described, the container has an annular flange 245 projecting radially from the wall of the container.
The container comprises means for fixing a plug, preferably in the form of an external thread 270 formed on the outer wall of the container and opening for example at the opening 275 of the container.
Preferably, the filling volume of the container is less than or equal to 100 cm 3. For example, the volume of the container illustrated in Figure 3 is 81 cm3.
Regarding its dimensions, preferably the container has a height, measured along the axis of the container between 100 mm and 150 mm and / or an outer radius of between 10 mm and 20 mm and / or a wall thickness of between 0.5 mm and 2 mm. The container illustrated in FIG. 16 has a height of 132 mm, an outside radius of 15 mm and a wall thickness of 1 mm.
Preferably, the container has a translucent or transparent wall. It is preferably made of a material chosen from a glass or a polymer. Preferably, it is made of a transparent polycarbonate, chosen in particular for its ability to contact food, its anti-ultraviolet and non-stick properties, which make it possible to protect the molecules of the light-sensitive ingredients and to promote the flow of the liquid composition. and cleaning the container.
Various plugs can be removably mounted on the container to close the container.
Below, there is first described a first plug, called stirring plug, which is an embodiment of a plug according to the second aspect of the invention.
As illustrated in the exploded view of FIG. 17, the agitation plug 280 includes a body 285 shaped to be secured, preferably screwed by means of a thread 288, to the container. The body comprises a housing 290 in which is disposed a micromotor 295. The body extends along an axis coinciding with the axis of the transmission shaft of the micromotor.
The body has a first portion 300 having a general shape of a cylinder of revolution and hollow, whose inner wall has an internal thread 288 which corresponds to the thread 270 of the container, so as to screw the cap on the container.
The first part is attached to a second part 305 by means of a weld performed by ultrasound. The second part consists of two prismatic portions 310, 315 of square and hollow section whose axes coincide with the axis of the first part, and which are connected by an intermediate portion 320 also hollow. The prismatic portions and the intermediate portion define the housing 290 of the micromotor. Preferably, the volume of the housing is between 5 and 15 cm3, for example equal to 11 cm3.
The upper portion of square section, of larger area, and the intermediate portion are arranged entirely in the volume of the convex hull of the first part. In contrast, the lower portion of square section, of smaller area, is disposed integrally out of said volume.
The second part comprises a through hole 325 provided in the lower portion, having a diameter greater than the diameter of the transmission shaft of the micromotor. In order to protect the motor from the condensation of solvent vapors from the tank, an O-ring 330 is mounted around the transmission shaft of the micromotor and compressed between the body of the stirring plug and the micromotor.
As illustrated in Figure 32, the stirring plug has openings 333a-b in the form of ring portions, and through the plug in its thickness. These openings make it possible in particular to promote the evaporation of the solvent, for example when it is based on alcohol. Caps 334a-b in the form of annular portions are provided to be engaged in the openings to close them.
The housing of the stirring plug is closed by a cap 335, which can be snapped onto the second part by means of catch tabs 340a-b engaged in corresponding grooves 342a-b formed in the inner wall of the second part, 20 to 22. The cap comprises at its center a bore 345 which receives a connector 350 fixed by means of a nut 355 and a washer 360, surmounted by a cap 363, to power electrically. the micromotor via lugs 365a-b. The feed lugs are engaged in holes 367a-b arranged in a retaining piece 368 of cylindrical shape of revolution. The connector 350 can be connected to one of the connectors 165a-b by a cable for conveying an electric current to the micromotor.
The height ep of the stirring plug, measured along the axis Xc of the body is preferably less than 70 mm, or even equal to 48 mm, as illustrated in FIG. 18. The diameter Φ /, of the plug as for it , measured in a direction transverse to the axis of the body, is preferably less than 100 mm, preferably less than 50 mm. As an illustration, it may be equal to 36 mm.
The body of the plug is preferably made of a polymer material, in particular an ABS / PC mixture.
As shown in Figure 3, the micromotor is disposed integrally in the housing. Furthermore, it is contained in the interior volume 352 of the container, when the stirring plug is fixed on the container. In this way, the assembly formed by the container and the stirring plug is compact. Thus, by arranging the plug members and the micromotor in the manner described above, the center of gravity of the apparatus is kept relatively low when the assembly consisting of the container and the stirring plug is disposed in the vessel. the device. The device having a generally elongate shape in the vertical direction in the use position, thus limiting the risk of overturning the device.
The function of the micromotor is to drive a stirring member in rotation so as to stir the mixture of the solvent and the ingredient during the preparation of the liquid composition. The maximum speed of rotation of the engine is adapted for this purpose and it is essential that it be less than or equal to 1000 revolutions per minute. Preferably, the maximum speed of rotation of the motor is less than 500 revolutions per minute, or even less than 300 revolutions per minute, and even less than 200 revolutions per minute. A maximum speed as described above makes it possible to stir the mixture while limiting the degradation of the flavors of the ingredient. The transmission shaft of the micromotor has an end portion 370 whose cross section has a contour of non-circular shape, preferably having the shape of a "D". The stirring member has an upper end having a housing of complementary shape to that of the end portion of the transmission shaft, and shaped so that the latter is fitted therein. In this way, the stirring member is rotated by the micromotor when the latter is in operation.
Various stirring members can be mounted on the transmission shaft of the micromotor.
A first stirring member 375, illustrated in FIG. 17, comprises a shaft 380 and blades 385a-b shaped to have the shape of an anchor. Each blade has the shape of an "L" and the height of the vertical bar of the "L" can be adapted according to the amount of mixture to be agitated. A stirring member in the form of an anchor is particularly suitable for stirring viscous mixtures, for example having a viscosity greater than 500 mPa.s, and / or a rotational speed of less than 200 rpm.
A second stirring member 390, shown in FIG. 17, is in the form of a four-blade propeller 395a-b evenly distributed around a shaft 400. Such a stirring member is more particularly adapted to stir mixtures having a viscosity of less than 500 mPa · s and / or a rotational speed greater than 200 rpm.
Finally, a member comprising a brush at its end opposite to that connected to the transmission shaft of the micromotor can be mounted on said instead of the stirring member.
Figures 23 and 24 illustrate a device for extracting the liquid composition according to the third aspect of the invention, which comprises an extraction cap 405 screwed onto the container.
The extraction plug is formed of a first part 300 identical to the first part of the stirring plug described above, in which a second part 410 is inserted. Preferably, the first and second parts are rigidly connected to each other, preferably by a weld seam obtained by ultrasonic welding.
The extraction cap has a spout 415, whose end is beveled and a through bore 420 forming a call-air. Each of the spout and the bore through the extraction cap from one side to the other according to its height.
Moreover, the extraction cap comprises a rod 425 shaped to be entirely disposed in the interior volume of the container when the extraction cap is screwed onto the container. The rod has a cylindrical upper portion 430 of revolution, and a frustoconical lower portion 435. The lower and upper portions are interconnected at a shoulder 440. The frustoconical portion is engaged between the turns of a resilient compression member formed by a helical spring 445, a turn located at the upper end presses against the shoulder.
The device for extracting the liquid composition further comprises a plunger element 450, comprising a monolithic press body formed of cylindrical upper portions 455 and lower 460 of cylindrical revolution and hollow. The lower portion has an inner diameter and an outer diameter respectively greater than the inner diameter and outer diameter of the upper portion.
The peripheral outer wall of the lower portion further comprises an outer peripheral thread 465 on which a corresponding internal thread 470 formed on a press head 475 of the plunger element can be engaged to screw the press head onto the press body.
A piston 477 is thus defined by the assembly formed by the lower part of the press body and the press head.
The press head has a cylindrical tubular shape of revolution and is hollow and open at both ends.
The side wall of the press head further comprises an annular groove 480, in which is housed an O-ring 485. The O-ring has an outer diameter equal to the inside diameter of the container, so as to prevent any flow of the unfiltered mixture of the lower part towards the upper part of the container along the wall of the container. Furthermore, the seal is shaped so as to rub against the inner wall of the container, to promote the pressurization of the mixture to be filtered and, consequently, the compression of the compression member.
Preferably, the plunger element defines an interior volume 490 in which the resilient compression member is disposed. Preferably, the extraction plug is partially engaged in the interior volume of the plunger element. By way of illustration, in the example shown in FIG. 24, the helical spring and the rod of the extraction plug are integrally and partially engaged respectively inside the hollow tubular upper part of the press body.
The hollow tubular portion of the plunger element is closed at its lower end 495 by the piston, on which rests the lower end of the spring.
Preferably, the container, the extraction cap, the elastic compression member and the plunger element are shaped so that when the cap is fixed, preferably screwed, on the container, the cap and the plunger element each a compressive force on the spring.
In particular, the equilibrium length of the spring is advantageously greater than or equal to the distance between the shoulder 440 and the bottom 495 of the tubular portion of the plunger element when the extraction cap is fixed on the container.
Preferably, the equilibrium length of the spring is between 30 mm and 80 mm. For example, it is 50 mm as in the drawing.
Preferably, the stiffness of the spring is between 1 N / mm and 10 N / mm. A stiffness of between 4 N / mm and 6 N / mm, for example 5 N / mm, is well suited. The maximum compressive force of the spring is preferably between 100 N and 200 N. A maximum compressive spring force of 136 N is for example sufficient for the spring to push the plunger element to ensure filtration of the mixture.
In addition, the piston may define a cavity 500 in which the filter is at least partially housed. In the example illustrated in FIG. 27, the internal volume of the piston defines a cavity in which a filter 505 is entirely housed.
The filter preferably has a pellet shape whose thickness is preferably between 1 mm and 3 mm. The diameter of the pellet is preferably between 15 mm and 25 mm. For example, the filter has a diameter of 20 mm and a thickness of 1.5 mm.
As illustrated in FIGS. 24 and 29, the filter rests at its periphery in a groove defined by an annular shoulder 510 which protrudes from the inner wall of the press head.
As previously described, the press head is screwed onto the press body. The filter can therefore easily be mounted in or disassembled from the piston, for example to be cleaned. In addition, it is thus possible to mount a filter having a filterability specific to the mixture to be filtered, for example depending on the viscosity of the solvent and / or the average particle size of the ingredients that can be dispersed in the mixture .
Preferably, the filter is at least partially or completely of a porous material, preferably sintered. In particular, the porous material may be metallic, and chosen for example from bronze, a stainless steel, for example an SS 316L or 304L steel, a nickel-based alloy, in particular an Inconel 600 alloy or a Monel 400 alloy or a Hastelloy X alloy or a Hastelloy C276 alloy.
A filter made of a metal and sintered material has a small thickness for an excellent compromise between filtration capacity and mechanical strength, because it is subjected during filtration to high stresses.
A filter at least partially or totally sintered stainless steel is particularly preferred. For example, a PORAL® R30 or SIPERM® R80 brand filter is well suited.
As regards the filtration capacity of the filter, the filter may have a porous structure suitable for filtering mixtures, in particular mixtures intended to form, after preparation, an e-liquid for an electronic cigarette. For this purpose, the filter may have an ability to filter more than 98% of the solid particles contained in the mixture having a diameter greater than 60 μm and / or to filter more than 99.9% of the particles having a size greater than 90 μm. .
Alternatively, the filter may be formed of a peripheral annular portion 515 surrounding a central portion 520 having a disc shape. The peripheral annular portion may be formed of a denser material than the central portion. For example, the peripheral annular portion may be dense, melted and cast stainless steel and the annular central portion may be porous and sintered stainless steel. In particular the width, i.e. the difference between the outer and inner radii of the annular portion is preferably greater than the width of the shoulder on which the filter rests.
In another variant, the filter may be integrally formed of the porous material.
Furthermore, the lower portion of the press body has apertures 525a-c reniform and through which are superimposed on the filter and the lower opening of the press head. Thus, a flow path is defined for the filtration of the mixture. During the filtration operation to be described later, the mixture flows from the part of the container located under the filter towards the filter via the lower opening 530 of the press head. It is then filtered by the filter so that, in contrast, the composition resulting from the filtration of the mixture flows through the opening formed in the lower part of the body towards the upper part 535 of the container. located above the filter, and out of the piston.
Subsequently, the implementation of the process for the preparation of a liquid composition according to the first and second aspects of the invention and the method for extracting a liquid composition according to the third aspect of the invention is described.
In particular, the extraction device according to the invention can advantageously be used to extract a filtered liquid coffee composition from a filter mixture obtained by at least partial dispersion and / or dissolution of ground coffee beans in water, for example conventionally using a coffee maker.
In such a setting, the container may have a filling volume greater than 100 cm3, or even greater than 300 cm3, or even greater than 1000 cm3.
To prepare a liquid composition, the user of the apparatus has in the interior volume of the container at least one solvent and at least one ingredient.
In particular, the solvent may be chosen from water, a hydrocarbon, an alcohol, in particular a glycol, a halogenated hydrocarbon, a ketone, an ester, an ether, in particular a glycol ether and their mixtures. Preferably, the solvent is chosen from propylene glycol, glycerin, in particular vegetable, water and their mixtures. The ingredient is preferably a plant element, for example chopped, fresh or dehydrated. It may be an aerial part of a plant or a tree, for example chosen from a leaf, in particular tobacco or mint, a seed, a nut, a fruit, in particular a coffee bean, in particular ground, a zest, a bud. It can be a subterranean part of a plant or a tree, for example a seed, a root and their mixtures. It can be a bark.
Preferably, particularly for the preparation of an e-liquid, the ingredient comprises nicotine. The ingredient may also be derived from a plant element as described above. It can for example be an essential oil, an oil obtained by grinding and compression of nuts, a sugar, for example from sugar cane or beetroot. The ingredient can also be a mineral substance, for example a salt.
The container comprising at least one ingredient and at least one solvent as described above is then introduced into the vessel of the apparatus and is fixed thereto by means of the bayonet fixing system.
A water bath is then introduced into the tank, between the vessel and the inner wall of the vessel. The water bath is a heat transfer liquid, preferably water.
Preferably, the volume of water bath introduced into the tank is preferably less than or equal to 35 cm3. Such a small volume of water bath is sufficient to heat a volume of ingredient and solvent contained in the upper container to 25 cm3 to extract low temperature aromas.
The ingredients and solvent contained in the container are then heated by means of the heating device which transmits the heat it produces in a water bath, which itself transmits it, in particular by conduction and by convection to the ingredient and solvent.
Preferably, the heating device is adapted to heat the ingredient and the solvent at a heating temperature between 40 ° C and 120 ° C, or even between 50 ° C and 110 ° C, preferably for a longer time or equal to 1 hour, even greater than or equal to 2 hours and preferably less than or equal to 12 hours.
Preferably, the heating device is adapted so that the temperature of the water bath is lower than the liquid-gas phase transition temperature at atmospheric pressure of the water bath and / or at the liquid-gas phase-to-pressure transition temperature. atmospheric solvent.
Moreover, to prevent the solvent from evaporating, the user can mount, preferably screw the stirring plug, on which can be mounted a stirring member as described above, on the container.
Preferably, to accelerate the dispersion and / or the dissolution of at least a part of the ingredient in the solvent, the micromotor housed in the stirring plug can be actuated to drive the stirring member so as to agitate the ingredient and solvent mixture.
For example, the maximum heating power of the heating device of the heater shown in the drawing is 24 W. The apparatus thus makes it possible to heat 35 cm3 of a water bath consisting of water so as to maintain at a temperature of 70 ° C and for 2 hours a mixture contained in the container, consisting of 2 g of tobacco leaf, 2 g of fresh mint, 20 cm3 of propylene glycol pharmaceutical grade USP / EP and 6 cm3 of vegetable glycerin pharmaceutical grade USP / EP to prepare a liquid composition. To accelerate the preparation of the composition, the micromotor is rotated at a rotation speed equal to 100 revolutions per minute.
Once the preparation is complete, the container contains a filter mixture comprising the solvent in which the ingredient is at least partially dissolved and / or dispersed and, where appropriate, an intact remaining part of the undissolved ingredient and / or not dispersed. The user then extracts the vessel from the vessel and dismantles the agitation cap of the vessel. It then introduces into the container successively the plunger element in which a suitable filter is housed, the helical spring inside the housing provided for this purpose in the plunger element. Then he puts the extraction cap on the container. Thus, when closing the container, the cap comes into contact with the coil spring and compresses it. The helical spring, seeking to reach its initial equilibrium length for which only gravitational internal stresses are exerted, pushes the plunger towards the lower part of the container. Since the part of the interior volume of the receptacle located under the plunger element is restricted, the mixture to be filtered then flows towards the filter by which it is filtered in such a way that a liquid composition, comprising the solvent and the at least a part of the dissolved and / or dispersed ingredient, flows from the outlet of the filter to the upper part of the interior volume of the container. Air contained in the upper part of the container is discharged through the bore 420 forming a call of air and / or by the spout 415.
However, the viscous nature of the solvent, the permeability of the filter and the friction of the O-ring on the inner wall of the container, generate a force on the plunger which opposes the force that the compression member applies to the plunger element. In doing so, the plunger moves progressively towards the bottom of the container to extract the liquid composition.
The progressive displacement of the plunger element ensures efficient filtration of the mixture to be filtered.
When no more displacement of the plunger element is visible, the user can then recover the liquid composition extracted by filtration. For this purpose, as illustrated in Figures 30 and 31, it disposes the container 25 at the upper opening 210 of the tank so that it rests obliquely on the first 220 and second 225 notches. As is clear from FIG. 31, the longer notch is shaped so that the tubular portion of the container can be engaged and the annular flange abuts under the effect of gravity against the inner wall of the container. the skirt. In doing so, although arranged obliquely, the container is held on the tank and can not slide relative thereto under the action of gravity.
Once the container installed obliquely on the tank, the user can then remove the end of a hose 537, for example silicone, disposed on the bore 420 forming a call air and engaged at its opposite end in the beak pourer 415 to pour the liquid composition in a container 540.
During this pouring phase, the mixture to be filtered disposed in the lower part of the container is located in a higher position than the liquid composition which flows out of the container. It therefore has a potential energy that acts as a driving force for the flow through the filter. The combined action of the potential energy of the mixture to be filtered and the compressed compression member then makes it possible to accelerate the filtration of the mixture to be filtered remaining in the lower part of the container. Advantageously, the implementation of the extraction device makes it possible to optimize the quantity of liquid composition that is extracted from the mixture to be filtered.
In particular, the ratio, expressed as a percentage, of the volume of extracted liquid composition, preferably measured in the container, on the volume of mixture to be filtered, prior to the extraction operation, may be greater than 50%, or even greater at 70%, better than 80%.
The liquid composition obtained by virtue of the various aspects of the invention can be intended for multiple uses depending on the ingredients and on the solvent chosen to prepare it.
As has already been described, it may advantageously be an e-liquid, intended to be introduced into an electronic cigarette, to be inhaled.
It can be an essential oil, for example intended to be applied to the skin, especially for cosmetic use.
It can be a flavored oil for consumption or for the preparation of a cooking recipe.
It can be a balm, for example for paramedical use as a massage ointment.
It may be a perfume, for example intended to be introduced into an indoor perfume diffuser.
It can be a syrup, for example for the preparation of a drink by dilution in water or in an alcohol, or a cooking recipe.
In a particular variant, the solvent may be water and the ingredient comprises coffee beans, in particular milled, and the liquid composition extracted by filtration of the mixture to be filtered is then an infusion of coffee.
In particular, for the preparation of an e-liquid intended for an electronic cigarette, the solvent is more preferentially chosen from propylene glycol and glycerin, in particular plant and mixtures thereof, and the ingredient comprises nicotine, for example contained in a tobacco leaf.
Obviously, the invention is not limited to the embodiments and examples described above.
For example, the elastic compression member may be other than a spring. It can be formed by a set of two magnets whose poles of the same polarity are arranged opposite.
Finally, the apparatus may comprise a remote connection means for the transfer of data, for example a Bluetooth® connection system. For example, the device can advantageously be controlled remotely by a mobile computer, for example a tablet or a smartphone, equipped with a computer program product whose execution is adapted to adjusting the heating and cooling temperature. the heating time of the appliance. The mobile computer may also include a storage unit in which a recipe for preparing a liquid composition and the preparation parameters, in particular the heating temperature, and the heating time can be stored.
Furthermore, as is clear from the various figures of the present description, the various component parts of the device, the removable cap and the extraction device can be easily dismantled. In particular, the mounting of the various components of the device can be performed without the use of a mounting tool, such as a wrench or a screwdriver. Preferably, the apparatus and / or the removable cap and / or the extraction device do not comprise screws. They can be made available to the user in the form of a kit of spare parts that the user can mount himself. Alternatively, they can be made available to the user in a package acting as a storage box and transport.
Finally, a multifunction tool can be supplied with the device to facilitate assembly / disassembly and cleaning of the device. It may include a spoon-shaped end and / or spatula to facilitate the introduction of the ingredients in the container.

权利要求:
Claims (10)
[1" id="c-fr-0001]
1. Device for extracting a liquid composition by filtration of a mixture, the device comprising: - a container (25) defining an internal volume (352), - a plunger element (450) comprising a piston (477) and a filter ( 505), and movably mounted in the interior volume of the container, - an elastic compression member (445), wherein, in a configuration of the device where the mixture is disposed between the bottom of the tank and the plunger element, the organ The compression is configured to exert a compressive force on the mixture via the piston, so as to extract the liquid composition by filtering the mixture through the filter.
[2" id="c-fr-0002]
2. Device according to this claim 1, wherein one end is fixed relative to the container and another end of the compression member is in contact with the plunger element.
[3" id="c-fr-0003]
3. Device according to any one of claims 1 and 2, wherein the compression member is a spring, in particular a leaf spring and preferably a coil spring.
[4" id="c-fr-0004]
4. Device according to any one of claims 2 and 3, wherein the end of the compression member is in contact with a cap (405) removably mounted, preferably screwed on the container and sealing, preferably tightly , the recipient.
[5" id="c-fr-0005]
5. Device according to any one of the preceding claims, wherein the piston comprises an outer groove (480) in which a seal (485), preferably O-ring is housed, so as to prevent the flow of the mixture between the piston and the side wall of the interior volume.
[6" id="c-fr-0006]
6. Device according to any one of the preceding claims, wherein the filter is at least partially or completely of a porous material, preferably sintered, preferably sintered and porous stainless steel.
[7" id="c-fr-0007]
7. Device according to any one of the preceding claims, wherein the piston has a cavity (500) in which the filter is at least partially, preferably entirely, housed.
[8" id="c-fr-0008]
8. Device according to claim 7, wherein the cavity has at least one opening (525a-c; 530) located on either side of the filter, so as to define a flow path of the liquid composition through the diver element.
[9" id="c-fr-0009]
9. Device according to any one of claims 7 and 8, wherein a shoulder, preferably annular, is formed on the inner wall of the piston, and the filter rests by its periphery on the shoulder.
[10" id="c-fr-0010]
10. Device according to any one of claims 7 to 9, wherein the piston is defined by the assembly of a press body and a press head, the press head having a bore in which the body of press is fixed, preferably screwed.

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同族专利:

公开号 | 公开日

FR3047909B1|2018-03-23|

WO2017144400A1|2017-08-31|

引用文献:

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法律状态:
2017-02-26| PLFP| Fee payment|Year of fee payment: 2 |

2017-08-25| PLSC| Publication of the preliminary search report|Effective date: 20170825 |

2017-12-05| PLFP| Fee payment|Year of fee payment: 3 |

2020-01-28| PLFP| Fee payment|Year of fee payment: 5 |

2021-02-12| PLFP| Fee payment|Year of fee payment: 6 |

2022-01-26| PLFP| Fee payment|Year of fee payment: 7 |

优先权:

申请号 | 申请日 | 专利标题

FR1651472A|FR3047909B1|2016-02-23|2016-02-23|EXTRACTION AND FILTRATION-COMPRESSION DEVICE|

FR1651472|2016-02-23|FR1651472A| FR3047909B1|2016-02-23|2016-02-23|EXTRACTION AND FILTRATION-COMPRESSION DEVICE|

PCT/EP2017/053756| WO2017144400A1|2016-02-23|2017-02-20|Filtration device with compression|

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