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EP2501629A1 - Measuring cap for a container that can house a pressurized fluid, and container provided with one such cap - Google Patents

Measuring cap for a container that can house a pressurized fluid, and container provided with one such cap

Info

Publication number
EP2501629A1
EP2501629A1 EP10784581A EP10784581A EP2501629A1 EP 2501629 A1 EP2501629 A1 EP 2501629A1 EP 10784581 A EP10784581 A EP 10784581A EP 10784581 A EP10784581 A EP 10784581A EP 2501629 A1 EP2501629 A1 EP 2501629A1
Authority
EP
European Patent Office
Prior art keywords
container
neck
cap
fluid
dosing cap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10784581A
Other languages
German (de)
French (fr)
Inventor
Serge Gandy
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2501629A1 publication Critical patent/EP2501629A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/70—Pressure relief devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/48—Lift valves, e.g. operated by push action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • 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
    • B65D2313/00—Connecting or fastening means

Definitions

  • the present invention relates to pressure vessels capable of containing a fluid, and more particularly the means for closing such pressure vessels.
  • the known pressure vessels are of the aerosol type.
  • An aerosol is a set of particles, solid or liquid, of a given chemical substance suspended in a gaseous medium.
  • aerosol also refers to the container containing a mixture of a product and a propellant.
  • the propellant creates a pressure inside the container. By opening an outlet valve, the mixture is expelled outside the pressure vessel.
  • the product is sprayed in aerosol form, that is to say in fine particles suspended in the air.
  • the propellant is usually nitrogen, because it is an inert gas and therefore less dangerous than propane, butane or other flammable hydrocarbons that have no effect on the ozone layer.
  • a known aerosol container includes a bottom, a side wall and a neck, and is usually made of aluminum.
  • the thickness of the container is designed to hold up to 18 bar pressure inside.
  • aerosol containers having different capacities.
  • Aerosols that is, pressure vessels with a non-removable dispensing valve
  • the dispensing valves are not removable and they do not allow to effectively measure the flow of product leaving the pressure vessel.
  • the internal pressure allowed by the standards is limited to 12 bar at 50 ° C.
  • the filling of known aerosols is limited by strict standards to 66% of the volume which itself is one liter at most.
  • the known aerosols work only when they contain a non-granular fluid, otherwise the dispensing valve clogs and the aerosols can no longer dispense fluid.
  • a first problem proposed by the present invention is to design a closure means for a pressure vessel capable of containing a fluid, which can be dismantled, which makes it possible to dose the outgoing product, and whose safety of use is ensured up to pressures of more than 20 bar.
  • the idea underlying the invention is to design a reliable dismountable measuring cap, and to use it in combination with a container containing a fluid under a pressure much higher than the pressures usually allowed for aerosols, for example from the order of 30 bars.
  • a dosing cap for pressure vessel adapted to contain a fluid
  • the container comprising a bottom, a substantially cylindrical side wall that tapers to a neck having a front neck face and an inner neck edge, comprising:
  • a body with a longitudinal axis having:
  • a penetrating part which is shaped to penetrate into the neck of the container, and which comprises a radial peripheral protuberance able to engage in abutment against the inner collar edge
  • Such a measuring cap is removable.
  • the container that closes can be easily reused which reduces the amount of waste produced.
  • Such a measuring cap is therefore ecological.
  • Such a dosing cap does not include a valve.
  • the pressure vessel provided with such a removable dosing cap is not constrained by the strict standards of aerosols, nor by other rules if the volume of the container is less than one liter and if the product pressure per volume is lower at 50 Lbar.
  • This dosing cap is simple in design, it includes only three main elements that can be preassembled, then a fourth element to assemble to assemble the dosing cap to the pressure vessel, so it is also easy to use.
  • Such a measuring cap is compatible with conventional aerosol container bodies, so that it is possible to take advantage of the low cost of these containers produced in large series.
  • the radial peripheral protrusion comprises a frustoconical portion whose cone angle substantially corresponds to the inclination of the inner collar edge of the container.
  • the penetrating portion comprises at least one recessed side face defining a width smaller than the diameter of the neck of the container.
  • said at least one lateral face is positioned so that it allows a slight local deformation of the neck which generates a leakage beyond a predetermined pressure inside the container.
  • the measuring cap is made of metal or plastic.
  • the use of plastic material makes it possible to reduce the manufacturing costs of the measuring cap because the plastic material is less expensive than the metal.
  • the metal will have better mechanical strength.
  • the metal is stainless steel or an aluminum alloy.
  • the assembly ring is fixed to the body by screwing, pressing or pinning.
  • the penetrating part of the body comprises two lateral plates on either side of the longitudinal axis of the body.
  • One of these two dishes realizing the side face.
  • the assembly ring has a peripheral skirt surrounding the neck of the container leaving a trailing space between its extreme edge and the peripheral wall of the container.
  • the assembly ring By surrounding the neck of the container, the assembly ring also performs the function of reinforcing the neck, opposing the action of the internal pressure of the container which tends to widen the neck.
  • the closure member prefferably be a rod slidably mounted in the axial fluid passage between a closed position and an open position, and comprises two annular grooves. able to receive annular sealing joints.
  • the stroke of the shutter element is limited between two predefined positions. This avoids any risk of the shutter element coming out of the axial passage of the fluid.
  • the closure member is a needle screw that is actuated by screwing or unscrewing into the body.
  • the penetration of the needle screw into the body is precisely selected by a user by screwing or unscrewing more or less the needle screw. And this structure is well suited to applications in which the fluid contains solid powders or suspensions.
  • the closure member further comprises a closure element positioned in the axial passage of fluid to near the neck of the container and held away from it by a spring or by the internal pressure of the container.
  • the closure element performs a dual function, namely the fill valve function and the safety element function.
  • the invention provides a container adapted to contain a fluid under pressure, closed by a measuring cap according to the first aspect of the invention, and having an initial internal pressure greater than 20 bar.
  • Such a container is not required to meet aerosol standards because it does not include a fixed valve and the cap is removable.
  • FIG. 1 is a longitudinal sectional view of a pressure vessel provided with a measuring cap according to a first embodiment of the invention
  • FIG. 2 is an exploded view of the elements to be assembled to achieve the measuring cap of Figure 1;
  • FIG. 3 is a side view of the body of the measuring cap of FIG. 1 in a state penetrated into the neck of the container;
  • FIG. 4 is an enlarged longitudinal sectional view of the measuring cap of FIG. 1;
  • FIG. 5 is a longitudinal sectional view of the measuring cap of Figure 1 in a closed position
  • FIG. 6 is a longitudinal sectional view of an enlargement at the annular groove of the measuring cap of Figure 1 in an intermediate position;
  • FIG. 7 is a longitudinal sectional view of the plug of Figure 1 in an open position
  • FIGS. 8 and 9 are views in longitudinal section of a pressure vessel provided with a measuring cap according to a second embodiment
  • FIGS. 10 and 11 are views in longitudinal section of a pressure vessel provided with a measuring cap according to a third embodiment.
  • FIGS 1 to 7 illustrate a first embodiment of the invention, wherein a measuring cap 1 is assembled by screwing to a container 2 under pressure.
  • the numerical references therefore refer to the same elements in all these figures.
  • FIG. 1 illustrates the container 2 closed by the measuring cap 1.
  • the container 2 comprises a bottom 3, a cylindrical side wall 4 which narrows towards a neck 5. The narrowing is provided at an angle of inclination ⁇ .
  • the neck 5 is made by folding outwardly on itself the material constituting the container 2.
  • the neck 5 comprises a front face of the neck 6 and a lower edge of the neck 7.
  • the container 2 is intended to contain a fluid under pressure.
  • FIG. 4 is illustrated which more precisely illustrates in section the constituent elements of the measuring cap 1.
  • the measuring cap 1 comprises a body 8 with a longitudinal axis I-I, a seal 15, an assembly ring 16, a closure member 17, and an operating member 18.
  • the body 8 comprises a penetrating portion 9 and an emerging portion 11 which meet in a sealing shoulder 14 facing the emergent portion 1 January.
  • the penetrating portion 9 includes a substantially cylindrical distal portion and a proximal radial peripheral outgrowth.
  • the radial peripheral protrusion 10 comprises a frustoconical portion 10a (FIG. 2) of cone angle a.
  • the cone angle a is intended to correspond with the angle of inclination ⁇ so as to distribute the mechanical stresses of the measuring cap 1 on the container 2.
  • the penetrating portion 9 comprises two lateral plates 19a and 19b ( Figures 2 and 3) on either side of the longitudinal axis II of the body 8. These two side plates 19a and 19b ( Figures 2 and 3), parallel to the longitudinal axis II, are provided to allow the introduction of the penetrating portion 9 of the body 8 in the container 2 by the neck 5.
  • the width 190 of the penetrating portion 9 at the two side plates 19a and 19b is designed to be smaller than the diameter D of the neck 5 of the container 2.
  • the penetrating portion 9 of the body 8 may comprise non-parallel, non-symmetrical lateral faces or even a single lateral face. The essential is to allow penetration of the penetrating portion 9 in the neck 5 and a sufficient range for the seal 15.
  • the emergent portion 11 comprises an axial through-passing fluid passage 12, a fluid outlet passage 13, and a threaded portion 11a on its outer surface in the vicinity of the sealing shoulder 14.
  • the fluid outlet passage 13 and the axial passage of fluid 12 communicate with each other for allow, once the measuring cap 1 assembled to the container 2, the flow of the product contained in the container 2.
  • the seal 15 is annular and is shaped to bear on the sealing shoulder 14 and on the front face of the neck 6.
  • the assembly ring 16 comprises a substantially cylindrical portion 25 having a threaded through opening 24, and a peripheral skirt 20.
  • the thread of the threaded through opening 24 of the assembly ring 16 is provided to correspond to the threaded portion thread. 1 1 a of the emerging part 1 1.
  • the closure member 17 is able to close and selectively open the fluid outlet passage 13. It is controlled by an operating member 18 accessible on the emergent part 1 1 of the body 8.
  • the closure member 17 is a rod comprising two annular grooves 22a and 22b of frustoconical profile and offset longitudinally from one another at a spacing greater than the axial distance between the fluid outlet passage 13 and the intermediate shoulder 30 ( Figure 4).
  • Each annular groove 22a and 22b is provided with a seal, respectively 23a and 23b.
  • Each sealing gasket 23a and 23b may advantageously be made of elastomer and of cylindrical tubular shape with circular section of constant thickness.
  • the upstream annular groove 22a has a depth which is reduced in the direction of the upstream orifice 12a.
  • the closure member 17 comprises an intermediate portion 170 situated between the two annular grooves 22a and 22b and which is cylindrical in the embodiment of FIGS. 1 to 7.
  • This intermediate portion 170 could, however, be frustoconical, or more widely of all shape to be determined according to the particle size of the fluid to be dispensed.
  • FIGS. 5 to 7 illustrate the sliding of the closure member 17 in the axial fluid passage 12.
  • FIG. 5 illustrates the measuring cap 1 in a closing position P1 in which the product contained in the receptacle 2 can not be expelled towards the outside of the receptacle 2: the upstream obturating seal 23a is engaged in a cylindrical section small diameter of the axial fluid passage 12, between the fluid outlet passage 13 and the intermediate shoulder 30, and it then ensures a sealing of the axial fluid passage 12.
  • FIG. 6 illustrates on a larger scale the shut-off member 17 in an intermediate position P. In this intermediate position P, the upstream shut-off seal 23a is at the right of the intermediate shoulder 30, and it realizes a partial opening by allowing the pressurized fluid to pass at a rate that the user can control by axial displacement of the closure member 17.
  • the frustoconical shape of the annular groove 22a gradually forces the upstream closure seal 23a, which allows a gradual opening.
  • FIG. 7 illustrates the measuring cap 1 in an opening position P2, in which the product contained in the receptacle 2 is expelled towards the outside of the receptacle 2.
  • Figure 7 illustrates the elements in the opening position P2 in which the fluid is expelled.
  • the closure member 17 is lowered sufficiently to break the seal at the upstream seal 23a.
  • the fluid is thus expelled in a controlled manner to the outside through the axial fluid passage 12 and then through the outlet passage 13.
  • the second seal 23b seals to prevent a quantity of fluid can not be extracted to the operating organ 18.
  • the operating member 18 is a cap provided with a threaded bore 18a for fixing it by screwing onto the threaded distal end 17a of the closure member 17. Alternatively, the operating member 18 may be fixed by clipping, crimping, hooping or gluing.
  • the elastic means 17b is however not essential, and it can be considered that the pressure inside the container 2 is sufficient to allow the sliding of the closure member 17 to the position P1 shutter with the appropriate dispensing fluids.
  • FIG. 2 makes it possible to explain the assembly order of these elements in order to produce the measuring cap 1.
  • the seal 15 is disposed on the inside of the assembly ring 16 so that once assembled, the seal 15 seals at the neck 5 of the container 2. It rises sliding the shutter member 17 without the operating member 18 in the axial fluid passage 12 by engaging it through the upstream orifice 12a.
  • the closure joints 23a and 23b have previously been mounted in the respective annular grooves 22a and 22b provided in the closure member 17.
  • the assembly ring 16 provided with the seal 15 is engaged on the body 8.
  • the closure member 18 is screwed onto the distal end 17a of the closure member 17, by blocking the closure member in rotation by engaging a screwdriver in a slot 17c provided at the proximal end. of the shutter member 17.
  • any other locking means can be provided, and the slot 17c can have any other profile.
  • the measuring cap 1 is positioned so that the radial peripheral protrusion 10 engages against the inside collar edge 7.
  • the assembly ring 16 is screwed onto the threaded part of the emergent part 1 1 of the body 8.
  • the assembly ring 16 axially clamps the first seal 15 against the front face of the neck 6 and against the sealing shoulder 14.
  • the assembly of the measuring cap 1 with the container 2 is made.
  • the peripheral skirt 20 surrounds the neck 5 of the container 2 leaving a leakage space E between its end edge 21 and the peripheral wall 4 of the container 2.
  • the invention also ensures the safety of the users, by a safety leak when a predetermined maximum pressure is reached inside the container 2.
  • the side plates 19a and 19b are positioned recessed so that they allow a slight local deformation of the neck 5 realizing a zone of less resistance.
  • the neck 5 is deformed outwards and the seal 5 is less crushed, which generates a safety leak.
  • This first embodiment is more particularly suitable for fluids whose particle size is less than 500 ⁇ .
  • Figures 8 and 9 illustrate a second embodiment of the present invention, wherein the container 2 ( Figure 1) is closed by the measuring cap 100. As in the first embodiment, the measuring cap 100 is assembled to the container 2 by screwing.
  • the measuring cap 100 comprises a body 80 with a longitudinal axis II-II, a seal 15, an assembly ring 16, a shutter element 40.
  • the main difference between the first and the second embodiment lies in the fact that in the second embodiment the shutter member 41 and the operating member 42 are in one piece and realize the shutter member 40.
  • the operating member 42 may be an insert by gluing, clipping, shrinking or screwing.
  • the axial fluid passage 12 comprises a threaded upper portion 12b, a lower shoulder 43 and an intermediate shoulder 44a.
  • the lower shoulder 43 is disposed at an intermediate position between the fluid outlet passage 13 and the upstream orifice 12a of the axial fluid passage 12.
  • the shutter element 40 is able to shut off and selectively open the fluid outlet passage 13. It is directly controlled by an action of a user on the operating member 42 accessible on the emergent part 11 of the body 80.
  • the shutter member 41 is a rod comprising four sections.
  • a first section 41 a upper is partially threaded in its near part of the operating member 42.
  • a second section 41 ba a reduced diameter and comprises an annular groove 45 frustoconical double profile.
  • the annular groove 45 may however have any other shape producing a bulge, for example a spherical profile.
  • the first section 41a and the second section 41b are joined by a shoulder 44a.
  • the third section 41c has a frustoconical profile and joins the fourth section 41 d in tip which terminates the rod.
  • the annular groove 45 is provided with a closure seal 46.
  • the closure seal 46 may advantageously be made of elastomer and of cylindrical tubular shape with circular section of constant thickness.
  • the annular groove 45 has a depth which increases towards the upstream orifice 12a.
  • the measuring cap 100 further comprises a closure element such as a ball 47, engaged in axial displacement in the axial fluid passage 12, and held in position by a conical spring 48.
  • a closure element such as a ball 47, engaged in axial displacement in the axial fluid passage 12, and held in position by a conical spring 48.
  • the diameter of the ball 47 is chosen sufficient not to penetrate the container 2, and sufficient to create the seal when the ball 47 is in contact with the lower shoulder 43.
  • the spring could be straight and resting on the plunger tube 49 (FIGS. 8 to 11), the inside diameter of which is smaller than that of the ball 47.
  • the measuring cap 100 In the position illustrated in FIG. 9, the measuring cap 100 is in a closed position in which the product contained in the container 2 can not be expelled outwards. of the container 2.
  • the fourth section 41 d at the tip of the closure member 41 cooperates with a narrowing 50 of the axial fluid passage 12, upstream of the fluid outlet passage 13.
  • the narrowing 50 forms a seat against which can bring the fourth section 41 d, then ensuring sealing of the axial fluid passage 12.
  • the fourth section 41 d When the closure member 41 is in an intermediate position, the fourth section 41 d in point no longer cooperates with the constriction 50 of the axial fluid passage 12. Thus, a partial opening is made which passes the fluid under pressure according to a flow rate that the user can control by axial displacement of the shutter member 41 by more or less unscrewing the shutter member 40.
  • the pointed shape of the fourth section 41 d allows a gradual opening.
  • the diameter of the third section 41c and the shape of the tip 41d can be modified.
  • the ball 47 fulfills the dual function of filling valve and safety valve.
  • the safety valve function is illustrated in Figure 8.
  • the shutter member 40 is absent, the fluid outlet passage 13 is closed, the ball 47 is pushed back by the conical spring 48 towards the lower shoulder 43. By contact between the ball 47 and the shoulder lower 43, the seal is assured.
  • the fluid entering the pressure pushes the ball 47 towards the inside of the container 2 so that the ball 47 is no longer in contact with the lower shoulder 43, and lets the pressurized fluid inwards of the container 2.
  • the ball 47 acts as a non-return valve in that it prevents the exit of the fluid contained in the container 2, because the fluid that moves towards the outlet pushes the ball 47 into contact with the lower shoulder 43, creating sealing and preventing the expulsion of fluid under pressure to the outside of the container 2.
  • the ball 47 also plays the role of safety valve, because if the shutter member 40 is unscrewed by accident, the ball 47 rises and returns to contact with the lower shoulder 43 to create the seal. The pressurized fluid is then not expelled towards the outside of the container 2.
  • Figures 10 and 1 1 illustrate a third embodiment of the invention.
  • the difference with respect to the second embodiment is the absence of a conical spring.
  • the ball 47 is held in position by sufficient pressure inside the container 2 ( Figure 10).
  • FIGs 8 to 1 there is illustrated a dip tube 49 for guiding the fluid from the inside of the container 2 to the outside.
  • the ball 47 has a diameter greater than the inside diameter after fitting of the dip tube 49, so that the ball 47 does not fall into the container 2 ( Figure 1 1). In this way, the ball 47 is engaged between the dip tube 49 and the lower shoulder 43.
  • the plunger tube 49 is not shown in FIGS. 1 to 7, but may be provided to fulfill in particular the same function of limiting the stroke of the ball 47, or the bearing function of the spring 48.
  • the cone of the needle 41 d it is advantageously possible for the cone of the needle 41 d to have an angle of approximately 60 °, and the needle to be truncated so as not to damage the ball 47 when the needle 41 d is at ball contact 47.
  • the second and third embodiments are more particularly suitable for fluids whose particle size is less than 2 mm.
  • the measuring cap may be made of any material having food characteristics when the container is to contain and dispense food fluid. It may be made of plastic or metal (for example stainless steel or an aluminum alloy).
  • the fluid outlet 13 could have any shape allowing the adaptation of an extension tube for dispensing the fluid more ergonomically.
  • the cone angle a of the frustoconical portion of the radial peripheral outgrowth 10 does not correspond to the inclination ⁇ of the inside collar edge of the container. Thus, during the rotation of the penetrating portion 9 a bite is created and blocks the body 8 firmly.
  • the ball 47 could be replaced by a cylinder of diameter substantially smaller than the diameter of the axial fluid passage 12 and substantially greater than the inside diameter of the spring 48, if any.
  • Said cylinder may be provided with a substantially frustoconical groove, such as the groove 22a (FIG. 6).
  • a seal, such as the seal 23a, is provided in the groove. The seal is made as shown in FIG. 6, the seal coming into contact with a narrowing of the axial fluid passage, such as the narrowing 50 (FIGS. 8 to 11).

Landscapes

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

Abstract

The invention relates to a measuring cap (1) for a pressurised container (2), comprising: a body (8) having an axial fluid channel (12), shaped in order to be inserted into the container (2) through the neck (5); a sealing joint (15) shaped bear on a portion of the body (8); an assembly ring (16) which is used for removably securing the measuring cap (1) to the container (2) and which is removable; and a closure member (17) for selectively closing and opening the fluid outlet channel (12).

Description

BOUCHON DOSEUR POUR RECI PI ENT APTE A CONTENIR UN FLUIDE SOUS PRESSION, ET RECIPIENT MUNI D'UN TEL BOUCHON  DOSE CAP FOR RECI PI ENT FIT TO CONTAIN A PRESSURIZED FLUID, AND CONTAINER EQUIPPED WITH SUCH A CAP
DOMAINE TECHNIQUE DE L'INVENTION TECHNICAL FIELD OF THE INVENTION
La présente invention concerne les récipients sous pression aptes à contenir un fluide, et plus particulièrement les moyens de fermeture de tels récipients sous pression.  The present invention relates to pressure vessels capable of containing a fluid, and more particularly the means for closing such pressure vessels.
Les récipients sous pression connus sont du type aérosols. Un aérosol est un ensemble de particules, solides ou liquides, d'une substance chimique donnée en suspension dans un milieu gazeux.  The known pressure vessels are of the aerosol type. An aerosol is a set of particles, solid or liquid, of a given chemical substance suspended in a gaseous medium.
Dans la vie courante, le terme « aérosol » désigne aussi le récipient contenant un mélange d'un produit et d'un gaz propulseur. Le gaz propulseur crée une pression à l'intérieur du récipient. En ouvrant une valve de sortie, le mélange est expulsé à l'extérieur du récipient sous pression. Le produit est pulvérisé sous forme d'aérosol, c'est-à-dire en fines particules en suspension dans l'air.  In everyday life, the term "aerosol" also refers to the container containing a mixture of a product and a propellant. The propellant creates a pressure inside the container. By opening an outlet valve, the mixture is expelled outside the pressure vessel. The product is sprayed in aerosol form, that is to say in fine particles suspended in the air.
Le gaz propulseur est habituellement de l'azote, car c'est un gaz inerte et donc moins dangereux que le propane, le butane ou autres hydrocarbures inflammables qui n'ont toutefois pas d'effet sur la couche d'ozone.  The propellant is usually nitrogen, because it is an inert gas and therefore less dangerous than propane, butane or other flammable hydrocarbons that have no effect on the ozone layer.
Un récipient d'aérosol connu comprend un fond, une paroi latérale et un col, et est habituellement réalisé en aluminium. L'épaisseur du récipient est prévue pour tenir jusqu'à 1 8 bars de pression à l'intérieur. Il existe de tels récipients d'aérosols ayant différentes contenances.  A known aerosol container includes a bottom, a side wall and a neck, and is usually made of aluminum. The thickness of the container is designed to hold up to 18 bar pressure inside. There are such aerosol containers having different capacities.
De tels récipients sont décrits notamment dans les documents US 3,977,576, FR 2 909 981 A1 , US 6,253,970 B1 et US 3, 187,962.  Such containers are described in particular in documents US 3,977,576, FR 2,909,981 A1, US 6,253,970 B1 and US 3,187,962.
Ces récipients connus sont fermés par une valve distributrice prévue non démontable. Les récipients ne peuvent donc pas être réutilisés. Lorsqu'une pression est appliquée sur un organe de manœuvre relié à la valve distributrice, l'étanchéité est rompue, permettant au produit contenu dans le récipient de passer dans la valve et de s'échapper vers l'extérieur du récipient.  These known containers are closed by a dispensing valve provided non-removable. The containers can not be reused. When pressure is applied to an actuator connected to the dispensing valve, the seal is broken, allowing the product contained in the container to pass into the valve and escape to the outside of the container.
Les aérosols, c'est-à-dire les récipients sous pression munis d'une valve distributrice non démontable, sont régis par des normes de sécurité très strictes et draconiennes. Dans tous les aérosols connus, les valves distributrices ne sont pas démontables et elles ne permettent pas de doser efficacement le flux de produit sortant du récipient sous pression. La pression interne autorisée par les normes est limitée à 12 bars à 50°C. De plus, le remplissage des aérosols connus est limité par des normes strictes à 66% du volume qui lui-même est d'un litre au maximum. Les aérosols connus ne fonctionnent que lorsqu'ils contiennent un fluide non granuleux, sinon la valve distributrice se bouche et les aérosols ne peuvent plus distribuer de fluide. Aerosols, that is, pressure vessels with a non-removable dispensing valve, are subject to very strict and stringent safety standards. In all known aerosols, the dispensing valves are not removable and they do not allow to effectively measure the flow of product leaving the pressure vessel. The internal pressure allowed by the standards is limited to 12 bar at 50 ° C. In addition, the filling of known aerosols is limited by strict standards to 66% of the volume which itself is one liter at most. The known aerosols work only when they contain a non-granular fluid, otherwise the dispensing valve clogs and the aerosols can no longer dispense fluid.
EXPOSE DE L'INVENTION  SUMMARY OF THE INVENTION
Un premier problème proposé par la présente invention est de concevoir un moyen de fermeture pour récipient sous pression apte à contenir un fluide, qui soit démontable, qui permette de doser le produit sortant, et dont la sécurité d'utilisation soit assurée jusqu'à des pressions de plus de 20 bars.  A first problem proposed by the present invention is to design a closure means for a pressure vessel capable of containing a fluid, which can be dismantled, which makes it possible to dose the outgoing product, and whose safety of use is ensured up to pressures of more than 20 bar.
Un second problème qui est à la base de la présente invention est de concevoir un récipient sous pression qui permette une poussée intermittente et qui puisse contenir et distribuer un fluide même granuleux.  A second problem which is the basis of the present invention is to design a pressure vessel which allows intermittent thrust and which can contain and distribute a fluid even granular.
Compte tenu du fait que les aérosols ne fonctionnent pas avec un fluide granuleux, les valves d'aérosols ne permettent pas de résoudre ces problèmes.  Since aerosols do not work with a granular fluid, aerosol valves do not solve these problems.
L'idée qui est à la base de l'invention est de concevoir un bouchon doseur démontable fiable, et de l'utiliser en association avec un récipient contenant un fluide sous une pression nettement supérieure aux pressions habituellement autorisées pour les aérosols, par exemple de l'ordre de 30 bars.  The idea underlying the invention is to design a reliable dismountable measuring cap, and to use it in combination with a container containing a fluid under a pressure much higher than the pressures usually allowed for aerosols, for example from the order of 30 bars.
Pour atteindre ces buts ainsi que d'autres, l'invention propose, selon un premier aspect, un bouchon doseur pour récipient sous pression apte à contenir un fluide, le récipient comprenant un fond, une paroi latérale sensiblement cylindrique qui se rétrécit vers un col ayant une face frontale de col et un bord intérieur de col, comprenant :  To achieve these and other objects, the invention provides, in a first aspect, a dosing cap for pressure vessel adapted to contain a fluid, the container comprising a bottom, a substantially cylindrical side wall that tapers to a neck having a front neck face and an inner neck edge, comprising:
- un corps à axe longitudinal ayant :  a body with a longitudinal axis having:
- une partie pénétrante, qui est conformée pour pénétrer dans le col du récipient, et qui comporte une excroissance périphérique radiale apte à s'engager en appui contre le bord intérieur de col,  a penetrating part, which is shaped to penetrate into the neck of the container, and which comprises a radial peripheral protuberance able to engage in abutment against the inner collar edge,
- une partie émergeante, avec un passage axial de fluide communiquant avec l'intérieur du récipient et communiquant avec l'extérieur du récipient par un passage de sortie de fluide,  an emergent part, with an axial passage of fluid communicating with the inside of the container and communicating with the outside of the container via a fluid outlet passage,
- un épaulement d'étanchéité à la jonction entre la partie pénétrante et la partie émergeante,  a sealing shoulder at the junction between the penetrating part and the emerging part,
- un joint d'étanchéité, conformé pour porter sur l'épaulement d'étanchéité et sur la face frontale de col,  a seal, shaped to bear on the sealing shoulder and on the end face of the collar,
- une bague d'assemblage, apte à se fixer de façon amovible sur la partie émergeante du corps en serrant axialement le premier joint d'étanchéité contre la face frontale de col et contre l'épaulement d'étanchéité, et - un organe d'obturation apte à obturer et ouvrir sélectivement le passage de sortie de fluide, commandé par un organe de manoeuvre accessible sur la partie émergeante du corps. an assembly ring, able to be fixed in a detachable manner on the emergent part of the body by axially tightening the first seal against the front face of the neck and against the sealing shoulder, and - A closure member adapted to close and selectively open the fluid outlet passage, controlled by a maneuvering member accessible on the emerging part of the body.
Un tel bouchon doseur est amovible. Ainsi, le récipient qu'il ferme peut être aisément réutilisé ce qui réduit la quantité des déchets produits. Un tel bouchon doseur est donc écologique. Un tel bouchon doseur ne comprend pas de valve. Et le récipient sous pression muni d'un tel bouchon doseur amovible n'est pas contraint par les normes strictes des aérosols, ni par d'autres règles si le volume du récipient est inférieur à un litre et si le produit pression par volume est inférieur à 50 Lbar.  Such a measuring cap is removable. Thus, the container that closes can be easily reused which reduces the amount of waste produced. Such a measuring cap is therefore ecological. Such a dosing cap does not include a valve. And the pressure vessel provided with such a removable dosing cap is not constrained by the strict standards of aerosols, nor by other rules if the volume of the container is less than one liter and if the product pressure per volume is lower at 50 Lbar.
Ce bouchon doseur est simple de conception, il ne comprend que trois éléments principaux qui peuvent être préassemblés, puis un quatrième élément à assembler pour assembler le bouchon doseur au récipient sous pression, il est donc également simple d'utilisation.  This dosing cap is simple in design, it includes only three main elements that can be preassembled, then a fourth element to assemble to assemble the dosing cap to the pressure vessel, so it is also easy to use.
Un tel bouchon doseur est compatible avec des corps de récipients classiques pour aérosols, de sorte qu'il est possible de profiter du faible coût de ces récipients produits en grande série.  Such a measuring cap is compatible with conventional aerosol container bodies, so that it is possible to take advantage of the low cost of these containers produced in large series.
De plus, le bouchon selon l'invention est un bouchon doseur, l'utilisateur peut donc choisir le débit d'écoulement du produit hors du récipient sous pression.  In addition, the cap according to the invention is a dosing cap, the user can therefore choose the flow rate of the product out of the pressure vessel.
De façon avantageuse, on peut prévoir que l'excroissance périphérique radiale comporte une portion tronconique dont l'angle de cône correspond sensiblement à l'inclinaison du bord intérieur de col du récipient.  Advantageously, it can be provided that the radial peripheral protrusion comprises a frustoconical portion whose cone angle substantially corresponds to the inclination of the inner collar edge of the container.
On répartit ainsi au mieux les contraintes mécaniques de poussée sur le col du récipient.  This optimally distributes the mechanical stresses on the neck of the container.
Avantageusement, on peut prévoir que la partie pénétrante comprend au moins une face latérale en retrait définissant une largeur inférieure au diamètre du col du récipient.  Advantageously, it can be provided that the penetrating portion comprises at least one recessed side face defining a width smaller than the diameter of the neck of the container.
L'introduction du corps dans le récipient sous pression est ainsi facilitée. On peut avantageusement prévoir que ladite au moins une face latérale est positionnée de sorte qu'elle autorise une légère déformation locale du col qui génère une fuite au-delà d'une pression prédéterminée à l'intérieur du récipient.  The introduction of the body into the pressure vessel is thus facilitated. It can be advantageously provided that said at least one lateral face is positioned so that it allows a slight local deformation of the neck which generates a leakage beyond a predetermined pressure inside the container.
C'est un élément de sécurité peu onéreux et facile à mettre en œuvre. On peut avantageusement prévoir que le bouchon doseur est réalisé en métal ou en matière plastique.  It is an inexpensive and easy-to-implement security element. It is advantageously provided that the measuring cap is made of metal or plastic.
L'utilisation de matière plastique permet de réduire les coûts de fabrication du bouchon doseur car la matière plastique est moins onéreuse que le métal. Cependant, le métal aura une meilleure tenue mécanique. Dans le cas d'un bouchon doseur en métal, on peut avantageusement prévoir que le métal est de l'acier inoxydable ou un alliage d'aluminium. The use of plastic material makes it possible to reduce the manufacturing costs of the measuring cap because the plastic material is less expensive than the metal. However, the metal will have better mechanical strength. In the case of a metal measuring cap, it can advantageously be provided that the metal is stainless steel or an aluminum alloy.
Ces métaux sont répandus et leur usinage par commande numérique ou tout autre moyen est bien connu.  These metals are widespread and their machining by numerical control or any other means is well known.
Avantageusement, on peut prévoir que la bague d'assemblage est fixée au corps par vissage, pressage ou goupillage.  Advantageously, it can be provided that the assembly ring is fixed to the body by screwing, pressing or pinning.
Ces types d'assemblage permettent d'obtenir un bouchon doseur qui soit amovible.  These types of assembly make it possible to obtain a measuring cap that is removable.
De façon avantageuse, on peut prévoir que la partie pénétrante du corps comprend deux plats latéraux de part et d'autre de l'axe longitudinal du corps. L'un de ces deux plats réalisant la face latérale.  Advantageously, it can be provided that the penetrating part of the body comprises two lateral plates on either side of the longitudinal axis of the body. One of these two dishes realizing the side face.
On peut avantageusement prévoir que la bague d'assemblage comporte une jupe périphérique venant entourer le col du récipient en laissant un espace de fuite entre son bord extrême et la paroi périphérique du récipient.  It can advantageously be provided that the assembly ring has a peripheral skirt surrounding the neck of the container leaving a trailing space between its extreme edge and the peripheral wall of the container.
C'est un élément de sécurité peu onéreux et facile à mettre en œuvre, qui guide à l'écart de l'utilisateur le jet de fluide sortant du récipient par le joint d'étanchéité en cas de surpression.  It is an inexpensive and easy-to-implement security element that guides the fluid jet issuing from the container through the seal in the event of overpressure away from the user.
En entourant le col du récipient, la bague d'assemblage remplit également la fonction de renfort du col, en s'opposant à l'action de la pression interne du récipient qui tend à élargir le col.  By surrounding the neck of the container, the assembly ring also performs the function of reinforcing the neck, opposing the action of the internal pressure of the container which tends to widen the neck.
Avantageusement, on peut prévoir, selon un premier mode de réalisation, que l'organe d'obturation est une tige montée à coulissement dans le passage axial de fluide entre une position d'obturation et une position d'ouverture, et comporte deux gorges annulaires aptes à recevoir des joints d'obturation annulaires.  Advantageously, provision can be made, according to a first embodiment, for the closure member to be a rod slidably mounted in the axial fluid passage between a closed position and an open position, and comprises two annular grooves. able to receive annular sealing joints.
La course de l'élément d'obturation est limitée entre deux positions prédéfinies. Ceci évite tout risque que l'élément d'obturation ne sorte intempestivement du passage axial de fluide.  The stroke of the shutter element is limited between two predefined positions. This avoids any risk of the shutter element coming out of the axial passage of the fluid.
Selon un second mode de réalisation, on peut avantageusement prévoir que l'organe d'obturation est une vis pointeau que l'on actionne par vissage ou dévissage dans le corps.  According to a second embodiment, it can advantageously be provided that the closure member is a needle screw that is actuated by screwing or unscrewing into the body.
La pénétration de la vis pointeau dans le corps est choisie de façon précise par un utilisateur en vissant ou dévissant plus ou moins cette vis pointeau. Et cette structure est bien adaptée aux applications dans lesquelles le fluide contient des poudres ou suspensions solides.  The penetration of the needle screw into the body is precisely selected by a user by screwing or unscrewing more or less the needle screw. And this structure is well suited to applications in which the fluid contains solid powders or suspensions.
On peut avantageusement prévoir que l'organe d'obturation comprend en outre un élément de fermeture positionné dans le passage axial de fluide à proximité du col du récipient et tenu éloigné de celui-ci par un ressort ou par la pression interne du récipient. It can be advantageously provided that the closure member further comprises a closure element positioned in the axial passage of fluid to near the neck of the container and held away from it by a spring or by the internal pressure of the container.
L'élément de fermeture remplit une double fonction, à savoir la fonction de clapet au remplissage et la fonction d'élément de sécurité.  The closure element performs a dual function, namely the fill valve function and the safety element function.
Selon un second aspect, l'invention prévoit un récipient apte à contenir un fluide sous pression, fermé par un bouchon doseur selon le premier aspect de l'invention, et ayant une pression interne initiale supérieure à 20 bars.  According to a second aspect, the invention provides a container adapted to contain a fluid under pressure, closed by a measuring cap according to the first aspect of the invention, and having an initial internal pressure greater than 20 bar.
Un tel récipient n'a pas l'obligation de répondre aux normes des aérosols, car il ne comprend pas de valve fixe et le bouchon est démontable.  Such a container is not required to meet aerosol standards because it does not include a fixed valve and the cap is removable.
DESCRIPTION SOMMAIRE DES DESSINS  SUMMARY DESCRIPTION OF THE DRAWINGS
D'autres objets, caractéristiques et avantages de la présente invention ressortiront de la description suivante de modes de réalisation particuliers, faite en relation avec les figures jointes, parmi lesquelles :  Other objects, features and advantages of the present invention will become apparent from the following description of particular embodiments, with reference to the accompanying figures, in which:
- la figure 1 est une vue en coupe longitudinale d'un récipient sous pression muni d'un bouchon doseur selon un premier mode de réalisation de l'invention ;  - Figure 1 is a longitudinal sectional view of a pressure vessel provided with a measuring cap according to a first embodiment of the invention;
- la figure 2 est une vue éclatée des éléments à assembler pour réaliser le bouchon doseur de la figure 1 ;  - Figure 2 is an exploded view of the elements to be assembled to achieve the measuring cap of Figure 1;
- la figure 3 est une vue de côté du corps du bouchon doseur de la figure 1 dans un état pénétré dans le col du récipient ;  FIG. 3 is a side view of the body of the measuring cap of FIG. 1 in a state penetrated into the neck of the container;
- la figure 4 est une vue en coupe longitudinale agrandie du bouchon doseur de la figure 1 ; FIG. 4 is an enlarged longitudinal sectional view of the measuring cap of FIG. 1;
- la figure 5 est une vue en coupe longitudinale du bouchon doseur de la figure 1 dans une position fermée ;  - Figure 5 is a longitudinal sectional view of the measuring cap of Figure 1 in a closed position;
- la figure 6 est une vue en coupe longitudinale d'un agrandissement au niveau de la gorge annulaire du bouchon doseur de la figure 1 dans une position intermédiaire ; - Figure 6 is a longitudinal sectional view of an enlargement at the annular groove of the measuring cap of Figure 1 in an intermediate position;
- la figure 7 est une vue en coupe longitudinale du bouchon de la figure 1 dans une position ouverte ; - Figure 7 is a longitudinal sectional view of the plug of Figure 1 in an open position;
- les figures 8 et 9 sont des vues en coupe longitudinale d'un récipient sous pression muni d'un bouchon doseur selon un second mode de réalisation ;  - Figures 8 and 9 are views in longitudinal section of a pressure vessel provided with a measuring cap according to a second embodiment;
- les figures 10 et 11 sont des vues en coupe longitudinale d'un récipient sous pression muni d'un bouchon doseur selon un troisième mode de réalisation. - Figures 10 and 11 are views in longitudinal section of a pressure vessel provided with a measuring cap according to a third embodiment.
DESCRIPTION DES MODES DE REALISATION PREFERES  DESCRIPTION OF THE PREFERRED EMBODIMENTS
Les figures 1 à 7 illustrent un premier mode de réalisation de l'invention, dans lequel un bouchon doseur 1 est assemblé par vissage à un récipient 2 sous pression. Les références numériques se réfèrent donc aux mêmes éléments sur toutes ces figures.  Figures 1 to 7 illustrate a first embodiment of the invention, wherein a measuring cap 1 is assembled by screwing to a container 2 under pressure. The numerical references therefore refer to the same elements in all these figures.
La figure 1 illustre le récipient 2 fermé par le bouchon doseur 1. Le récipient 2 comprend un fond 3, une paroi latérale 4 cylindrique qui se rétrécit vers un col 5. Le rétrécissement est prévu selon un angle d'inclinaison β. Le col 5 est réalisé par un repli vers l'extérieur sur elle-même de la matière constituant le récipient 2. Le col 5 comprend une face frontale de col 6 et un bord inférieur de col 7. Le récipient 2 est prévu pour contenir un fluide sous pression. FIG. 1 illustrates the container 2 closed by the measuring cap 1. The container 2 comprises a bottom 3, a cylindrical side wall 4 which narrows towards a neck 5. The narrowing is provided at an angle of inclination β. The neck 5 is made by folding outwardly on itself the material constituting the container 2. The neck 5 comprises a front face of the neck 6 and a lower edge of the neck 7. The container 2 is intended to contain a fluid under pressure.
Pour décrire le bouchon doseur 1 , on considère la figure 4 qui illustre plus précisément en coupe les éléments constitutifs du bouchon doseur 1.  To describe the measuring cap 1, FIG. 4 is illustrated which more precisely illustrates in section the constituent elements of the measuring cap 1.
Le bouchon doseur 1 comprend un corps 8 à axe longitudinal I-I, un joint d'étanchéité 15, une bague d'assemblage 16, un organe d'obturation 17, et un organe de manœuvre 18.  The measuring cap 1 comprises a body 8 with a longitudinal axis I-I, a seal 15, an assembly ring 16, a closure member 17, and an operating member 18.
Le corps 8 comprend une partie pénétrante 9 et une partie émergeante 11 qui se rejoignent selon un épaulement d'étanchéité 14 orienté vers la partie émergente 1 1.  The body 8 comprises a penetrating portion 9 and an emerging portion 11 which meet in a sealing shoulder 14 facing the emergent portion 1 January.
La partie pénétrante 9 comprend une partie distale sensiblement cylindrique et une excroissance périphérique radiale 10 proximale. L'excroissance périphérique radiale 10 comprend une portion tronconique 10a (figure 2) d'angle de cône a.  The penetrating portion 9 includes a substantially cylindrical distal portion and a proximal radial peripheral outgrowth. The radial peripheral protrusion 10 comprises a frustoconical portion 10a (FIG. 2) of cone angle a.
L'angle de cône a est prévu pour correspondre avec l'angle d'inclinaison β de façon à répartir les contraintes mécaniques du bouchon doseur 1 sur le récipient 2.  The cone angle a is intended to correspond with the angle of inclination β so as to distribute the mechanical stresses of the measuring cap 1 on the container 2.
La partie pénétrante 9 comprend deux plats latéraux 19a et 19b (figures 2 et 3) de part et d'autre de l'axe longitudinal I-I du corps 8. Ces deux plats latéraux 19a et 19b (figures 2 et 3), parallèles à l'axe longitudinal I-I, sont prévus pour permettre l'introduction de la partie pénétrante 9 du corps 8 dans le récipient 2 par le col 5.  The penetrating portion 9 comprises two lateral plates 19a and 19b (Figures 2 and 3) on either side of the longitudinal axis II of the body 8. These two side plates 19a and 19b (Figures 2 and 3), parallel to the longitudinal axis II, are provided to allow the introduction of the penetrating portion 9 of the body 8 in the container 2 by the neck 5.
Pour ce faire, la largeur 190 de la partie pénétrante 9, au niveau des deux plats latéraux 19a et 19b, est prévue pour être inférieure au diamètre D du col 5 du récipient 2.  To do this, the width 190 of the penetrating portion 9 at the two side plates 19a and 19b is designed to be smaller than the diameter D of the neck 5 of the container 2.
En alternative, la partie pénétrante 9 du corps 8 peut comporter des faces latérales non parallèles, non symétriques ou bien encore une unique face latérale. L'essentiel est de permettre la pénétration de la partie pénétrante 9 dans le col 5 et une portée suffisante pour le joint d'étanchéité 15.  As an alternative, the penetrating portion 9 of the body 8 may comprise non-parallel, non-symmetrical lateral faces or even a single lateral face. The essential is to allow penetration of the penetrating portion 9 in the neck 5 and a sufficient range for the seal 15.
La partie émergeante 1 1 comprend un passage axial de fluide 12 traversant, un passage de sortie de fluide 13, et une portion filetée 1 1 a sur sa surface externe à proximité de Pépaulement d'étanchéité 14. Le passage de sortie de fluide 13 et le passage axial de fluide 12 communiquent entre eux pour permettre, une fois le bouchon doseur 1 assemblé au récipient 2, l'écoulement du produit contenu dans le récipient 2. The emergent portion 11 comprises an axial through-passing fluid passage 12, a fluid outlet passage 13, and a threaded portion 11a on its outer surface in the vicinity of the sealing shoulder 14. The fluid outlet passage 13 and the axial passage of fluid 12 communicate with each other for allow, once the measuring cap 1 assembled to the container 2, the flow of the product contained in the container 2.
Le passage axial de fluide 12 comprend un épaulement intermédiaire 30, disposé en une position intermédiaire entre le passage de sortie de fluide 13 et l'orifice amont 12a du passage axial de fluide 12, et ayant sa face orientée vers l'amont.  The axial fluid passage 12 comprises an intermediate shoulder 30, disposed at an intermediate position between the fluid outlet passage 13 and the upstream orifice 12a of the axial fluid passage 12, and having its face facing upstream.
Le joint d'étanchéité 15 est annulaire et est conformé pour porter sur l'épaulement d'étanchéité 14 et sur la face frontale de col 6.  The seal 15 is annular and is shaped to bear on the sealing shoulder 14 and on the front face of the neck 6.
La bague d'assemblage 16 comprend une portion sensiblement cylindrique 25 ayant une ouverture traversante filetée 24, et une jupe périphérique 20. Le filet de l'ouverture traversante filetée 24 de la bague d'assemblage 16 est prévu pour correspondre au filet de portion filetée 1 1 a de la partie émergeante 1 1 .  The assembly ring 16 comprises a substantially cylindrical portion 25 having a threaded through opening 24, and a peripheral skirt 20. The thread of the threaded through opening 24 of the assembly ring 16 is provided to correspond to the threaded portion thread. 1 1 a of the emerging part 1 1.
L'organe d'obturation 17 est apte à obturer et ouvrir sélectivement le passage de sortie de fluide 13. Il est commandé par un organe de manœuvre 18 accessible sur la partie émergeante 1 1 du corps 8.  The closure member 17 is able to close and selectively open the fluid outlet passage 13. It is controlled by an operating member 18 accessible on the emergent part 1 1 of the body 8.
L'organe d'obturation 17 est une tige comportant deux gorges annulaires 22a et 22b à profil tronconique et décalées longitudinalement l'une de l'autre selon un écartement supérieur à l'écart axial entre le passage de sortie de fluide 13 et l'épaulement intermédiaire 30 (figure 4).  The closure member 17 is a rod comprising two annular grooves 22a and 22b of frustoconical profile and offset longitudinally from one another at a spacing greater than the axial distance between the fluid outlet passage 13 and the intermediate shoulder 30 (Figure 4).
Chaque gorge annulaire 22a et 22b est munie d'un joint d'obturation, respectivement 23a et 23b. Chaque joint d'obturation 23a et 23b peut avantageusement être en élastomère et de forme tubulaire cylindrique à section circulaire à épaisseur constante. La gorge annulaire amont 22a présente une profondeur qui se réduit en direction de l'orifice amont 12a.  Each annular groove 22a and 22b is provided with a seal, respectively 23a and 23b. Each sealing gasket 23a and 23b may advantageously be made of elastomer and of cylindrical tubular shape with circular section of constant thickness. The upstream annular groove 22a has a depth which is reduced in the direction of the upstream orifice 12a.
L'organe d'obturation 17 comprend une portion intermédiaire 170 située entre les deux gorges annulaires 22a et 22b et qui est cylindrique dans le mode de réalisation des figures 1 à 7. Cette portion intermédiaire 170 pourrait cependant être tronconique, ou plus largement de toute forme à déterminer en fonction de la granulométrie du fluide à distribuer.  The closure member 17 comprises an intermediate portion 170 situated between the two annular grooves 22a and 22b and which is cylindrical in the embodiment of FIGS. 1 to 7. This intermediate portion 170 could, however, be frustoconical, or more widely of all shape to be determined according to the particle size of the fluid to be dispensed.
Les figures 5 à 7 illustrent le coulissement de l'organe d'obturation 17 dans le passage axial de fluide 12.  FIGS. 5 to 7 illustrate the sliding of the closure member 17 in the axial fluid passage 12.
La figure 5 illustre le bouchon doseur 1 dans une position P1 d'obturation dans laquelle le produit contenu dans le récipient 2 ne peut pas être expulsé vers l'extérieur du récipient 2 : le joint d'obturation 23a amont est engagé dans un tronçon cylindrique à faible diamètre du passage axial de fluide 12, entre le passage de sortie de fluide 13 et l'épaulement intermédiaire 30, et il assure alors une obturation étanche du passage axial de fluide 12. La figure 6 illustre à plus grande échelle l'organe d'obturation 17 dans une position intermédiaire P. Dans cette position intermédiaire P, le joint d'obturation 23a amont est au droit de l'épaulement intermédiaire 30, et il réalise une ouverture partielle en laissant passer le fluide sous pression selon un débit que l'utilisateur peut contrôler par déplacement axial de l'organe d'obturation 17. La forme tronconique de la gorge annulaire 22a force de façon progressive le joint d'obturation 23a amont, ce qui permet une ouverture progressive. FIG. 5 illustrates the measuring cap 1 in a closing position P1 in which the product contained in the receptacle 2 can not be expelled towards the outside of the receptacle 2: the upstream obturating seal 23a is engaged in a cylindrical section small diameter of the axial fluid passage 12, between the fluid outlet passage 13 and the intermediate shoulder 30, and it then ensures a sealing of the axial fluid passage 12. FIG. 6 illustrates on a larger scale the shut-off member 17 in an intermediate position P. In this intermediate position P, the upstream shut-off seal 23a is at the right of the intermediate shoulder 30, and it realizes a partial opening by allowing the pressurized fluid to pass at a rate that the user can control by axial displacement of the closure member 17. The frustoconical shape of the annular groove 22a gradually forces the upstream closure seal 23a, which allows a gradual opening.
La figure 7 illustre le bouchon doseur 1 dans une position P2 d'ouverture, dans laquelle le produit contenu dans le récipient 2 est expulsé vers l'extérieur du récipient 2.  FIG. 7 illustrates the measuring cap 1 in an opening position P2, in which the product contained in the receptacle 2 is expelled towards the outside of the receptacle 2.
Comme illustré sur la figure 5, lorsque l'organe d'obturation 17 est dans la position P1 d'obturation, le fluide ne peut pas être expulsé car le passage axial de fluide 12 est obturé par l'organe d'obturation 17. Par la pression à l'intérieur du récipient 2, l'organe d'obturation 17 est poussé vers l'extérieur, et sa course est limitée par un épaulement 26 prévu sur l'organe d'obturation 17 et qui vient porter axialement contre l'épaulement intermédiaire 30 du passage axial de fluide 12, évitant que l'organe d'obturation 17 ne s'échappe.  As illustrated in FIG. 5, when the shut-off member 17 is in the shut-off position P1, the fluid can not be expelled because the axial passage of fluid 12 is closed off by the shut-off member 17. By the pressure inside the container 2, the closure member 17 is pushed outwards, and its stroke is limited by a shoulder 26 provided on the closure member 17 and which bears axially against the intermediate shoulder 30 of the axial fluid passage 12, preventing the closure member 17 from escaping.
L'étanchéité est assurée dans la position P1 d'obturation par le joint d'obturation 23a amont qui est pressé en cône contre la paroi du passage axial de fluide 12.  Sealing is ensured in the position P1 shutter by the shutter seal 23a upstream which is pressed conically against the wall of the axial fluid passage 12.
En cas de surpression à l'intérieur du récipient 2 au-delà d'une valeur de pression déterminée, une fuite est possible par le joint d'étanchéité 15 et dans l'espace E entre la jupe périphérique 20 et le récipient 2.  In case of overpressure inside the container 2 beyond a determined pressure value, leakage is possible by the seal 15 and in the space E between the peripheral skirt 20 and the container 2.
Lorsqu'un utilisateur applique une force F (figure 7) sur l'organe de manœuvre 18, la tige de l'organe d'obturation 17 coulisse dans le passage axial de fluide 12. Le fluide ne s'échappe pas grâce au joint d'obturation 23a amont qui est toujours pressé contre la paroi du passage axial de fluide 12. Comme on le comprend de la figure 6, l'obturation est assurée efficacement et de façon très économique avec un joint d'obturation 23a cylindrique engagé dans une gorge annulaire 22a tronconique.  When a user applies a force F (FIG. 7) on the operating member 18, the stem of the closure member 17 slides in the axial fluid passage 12. The fluid does not escape through the seal 23A upstream shutter which is always pressed against the wall of the axial fluid passage 12. As can be understood from Figure 6, the closure is provided efficiently and very economically with a cylindrical seal 23a engaged in a throat annular ring 22a frustoconical.
La figure 7 illustre les éléments dans la position P2 d'ouverture dans laquelle le fluide est expulsé. L'organe d'obturation 17 est abaissé suffisamment pour rompre l'étanchéité au niveau du joint d'obturation 23a amont.  Figure 7 illustrates the elements in the opening position P2 in which the fluid is expelled. The closure member 17 is lowered sufficiently to break the seal at the upstream seal 23a.
Le fluide est donc expulsé de façon contrôlée vers l'extérieur en passant par le passage axial de fluide 12 puis par le passage de sortie 13. Le second joint d'obturation 23b assure l'étanchéité pour éviter qu'une quantité de fluide ne puisse être extraite vers l'organe de manœuvre 18. L'organe de manœuvre 18 est un capuchon muni d'un alésage taraudé 18a pour sa fixation par vissage sur l'extrémité distale 17a filetée de l'organe d'obturation 17. En alternative, l'organe de manœuvre 18 pourra être fixé par clipsage, sertissage, frettage ou collage. The fluid is thus expelled in a controlled manner to the outside through the axial fluid passage 12 and then through the outlet passage 13. The second seal 23b seals to prevent a quantity of fluid can not be extracted to the operating organ 18. The operating member 18 is a cap provided with a threaded bore 18a for fixing it by screwing onto the threaded distal end 17a of the closure member 17. Alternatively, the operating member 18 may be fixed by clipping, crimping, hooping or gluing.
Dans le mode de réalisation décrit, un moyen élastique 17b du type ressort hélicoïdal de compression est engagé entre l'organe de manœuvre 18 et le corps 8, pour aider à la fermeture si la pression est trop faible à l'intérieur du récipient 2, ou si le fluide est collant.  In the embodiment described, an elastic spring means 17b of the helical compression spring type is engaged between the operating member 18 and the body 8, to assist in closing if the pressure is too low inside the container 2, or if the fluid is sticky.
Le moyen élastique 17b n'est toutefois pas indispensable, et l'on peut considérer que la pression à l'intérieur du récipient 2 est suffisante pour permettre le coulissement de l'organe d'obturation 17 jusqu'à la position P1 d'obturation avec les fluides à distribuer adaptés.  The elastic means 17b is however not essential, and it can be considered that the pressure inside the container 2 is sufficient to allow the sliding of the closure member 17 to the position P1 shutter with the appropriate dispensing fluids.
Si besoin, le fluide contenu dans le récipient doit être préalablement filtré.  If necessary, the fluid contained in the container must be filtered beforehand.
La figure 2 permet d'expliquer l'ordre d'assemblage de ces éléments pour réaliser le bouchon doseur 1.  FIG. 2 makes it possible to explain the assembly order of these elements in order to produce the measuring cap 1.
On dispose le joint d'étanchéité 15 sur l'intérieur de la bague d'assemblage 16 de sorte qu'une fois le tout assemblé, le joint d'étanchéité 15 réalise l'étanchéité au niveau du col 5 du récipient 2. On monte en coulissement l'organe d'obturation 17 dépourvu de l'organe de manœuvre 18 dans le passage axial de fluide 12 en l'engageant par l'orifice amont 12a. On aura préalablement monté les joints d'obturation 23a et 23b dans les gorges annulaires 22a et 22b respectives prévues dans l'organe d'obturation 17. On engage la bague d'assemblage 16 munie du joint d'étanchéité 15 sur le corps 8. On visse l'organe d'obturation 18 sur l'extrémité distale 17a de l'organe d'obturation 17, en bloquant en rotation l'organe d'obturation par engagement d'un tournevis dans une fente 17c prévue à l'extrémité proximale de l'organe d'obturation 17. En alternative à la fente 17c, on peut prévoir tout autre moyen de blocage, et la fente 17c peut présenter tout autre profil.  The seal 15 is disposed on the inside of the assembly ring 16 so that once assembled, the seal 15 seals at the neck 5 of the container 2. It rises sliding the shutter member 17 without the operating member 18 in the axial fluid passage 12 by engaging it through the upstream orifice 12a. The closure joints 23a and 23b have previously been mounted in the respective annular grooves 22a and 22b provided in the closure member 17. The assembly ring 16 provided with the seal 15 is engaged on the body 8. The closure member 18 is screwed onto the distal end 17a of the closure member 17, by blocking the closure member in rotation by engaging a screwdriver in a slot 17c provided at the proximal end. of the shutter member 17. As an alternative to the slot 17c, any other locking means can be provided, and the slot 17c can have any other profile.
Ensuite, on peut introduire en oblique la partie pénétrante 9 dans le col Then, we can introduce obliquely the penetrating part 9 in the neck
5 du récipient 2. Cette introduction est rendue possible notamment par la présence des deux plats latéraux 19a et 19b. Puis, le bouchon doseur 1 est positionné de façon à ce que l'excroissance périphérique radiale 10 s'engage en appui contre le bord intérieur de col 7. 5 of the container 2. This introduction is made possible in particular by the presence of the two side plates 19a and 19b. Then, the measuring cap 1 is positioned so that the radial peripheral protrusion 10 engages against the inside collar edge 7.
Puis, on visse la bague d'assemblage 16 sur la partie filetée de la partie émergente 1 1 du corps 8. La bague d'assemblage 16 serre axialement le premier joint d'étanchéité 15 contre la face frontale de col 6 et contre I'épaulement d'étanchéité 14. L'assemblage du bouchon doseur 1 avec le récipient 2 est réalisé. Then, the assembly ring 16 is screwed onto the threaded part of the emergent part 1 1 of the body 8. The assembly ring 16 axially clamps the first seal 15 against the front face of the neck 6 and against the sealing shoulder 14. The assembly of the measuring cap 1 with the container 2 is made.
La jupe périphérique 20 vient entourer le col 5 du récipient 2 en laissant un espace de fuite E entre son bord extrême 21 et la paroi périphérique 4 du récipient 2.  The peripheral skirt 20 surrounds the neck 5 of the container 2 leaving a leakage space E between its end edge 21 and the peripheral wall 4 of the container 2.
L'invention assure également la sécurité des utilisateurs, par une fuite de sécurité lorsqu'une pression maximale prédéterminée est atteinte à l'intérieur du récipient 2. Pour ce faire, les plats latéraux 19a et 19b sont positionnés en retrait de sorte qu'ils autorisent une légère déformation locale du col 5 réalisant une zone de moins de résistance. Ainsi, lorsque la pression maximale prédéterminée est atteinte, le col 5 est déformé vers l'extérieur et le joint d'étanchéité 5 est moins écrasé, ce qui génère une fuite de sécurité.  The invention also ensures the safety of the users, by a safety leak when a predetermined maximum pressure is reached inside the container 2. To do this, the side plates 19a and 19b are positioned recessed so that they allow a slight local deformation of the neck 5 realizing a zone of less resistance. Thus, when the predetermined maximum pressure is reached, the neck 5 is deformed outwards and the seal 5 is less crushed, which generates a safety leak.
Ce premier mode de réalisation convient plus particulièrement pour les fluides dont la granulométrie est inférieure à 500μιη.  This first embodiment is more particularly suitable for fluids whose particle size is less than 500μιη.
Les figures 8 et 9 illustrent un second mode de réalisation de la présente invention, dans lequel le récipient 2 (figure 1) est fermé par le bouchon doseur 100. Comme dans le premier mode de réalisation, le bouchon doseur 100 est assemblé au récipient 2 par vissage.  Figures 8 and 9 illustrate a second embodiment of the present invention, wherein the container 2 (Figure 1) is closed by the measuring cap 100. As in the first embodiment, the measuring cap 100 is assembled to the container 2 by screwing.
Les mêmes moyens essentiels sont repérés par les mêmes références numériques que sur les figures 1 à 7.  The same essential means are identified by the same reference numerals as in FIGS. 1 to 7.
Le bouchon doseur 100 comprend un corps 80 à axe longitudinal II-II, un joint d'étanchéité 15, une bague d'assemblage 16, un élément obturateur 40.  The measuring cap 100 comprises a body 80 with a longitudinal axis II-II, a seal 15, an assembly ring 16, a shutter element 40.
La principale différence entre le premier et le second mode de réalisation réside dans le fait que dans le second mode de réalisation l'organe d'obturation 41 et l'organe de manoeuvre 42 sont monobloc et réalisent l'élément obturateur 40. En alternative, l'organe de manœuvre 42 pourra être une pièce rapportée par collage, clipsage, frettage ou vissage.  The main difference between the first and the second embodiment lies in the fact that in the second embodiment the shutter member 41 and the operating member 42 are in one piece and realize the shutter member 40. Alternatively, the operating member 42 may be an insert by gluing, clipping, shrinking or screwing.
Le passage axial de fluide 12 comprend une portion supérieure filetée 12b, un épaulement inférieur 43 et un épaulement intermédiaire 44a. L'épaulement inférieur 43 est disposé en une position intermédiaire entre le passage de sortie de fluide 13 et l'orifice amont 12a du passage axial de fluide 12.  The axial fluid passage 12 comprises a threaded upper portion 12b, a lower shoulder 43 and an intermediate shoulder 44a. The lower shoulder 43 is disposed at an intermediate position between the fluid outlet passage 13 and the upstream orifice 12a of the axial fluid passage 12.
L'élément obturateur 40 est apte à obturer et ouvrir sélectivement le passage de sortie de fluide 13. Il est commandé directement par une action d'un utilisateur sur l'organe de manœuvre 42 accessible sur la partie émergeante 11 du corps 80.  The shutter element 40 is able to shut off and selectively open the fluid outlet passage 13. It is directly controlled by an action of a user on the operating member 42 accessible on the emergent part 11 of the body 80.
L'organe d'obturation 41 est une tige comportant quatre tronçons. Un premier tronçon 41 a supérieur est partiellement fileté dans sa partie proche de l'organe de manœuvre 42. Un second tronçon 41 b a un diamètre réduit et comprend une gorge annulaire 45 à profil double tronconique. The shutter member 41 is a rod comprising four sections. A first section 41 a upper is partially threaded in its near part of the operating member 42. A second section 41 ba a reduced diameter and comprises an annular groove 45 frustoconical double profile.
La gorge annulaire 45 peut toutefois présenter toute autre forme réalisant un renflement, par exemple un profil sphérique.  The annular groove 45 may however have any other shape producing a bulge, for example a spherical profile.
Le premier tronçon 41 a et le second tronçon 41 b se rejoignent par un épaulement 44a. Le troisième tronçon 41 c est à profil tronconique et rejoint le quatrième tronçon 41 d en pointe qui termine la tige.  The first section 41a and the second section 41b are joined by a shoulder 44a. The third section 41c has a frustoconical profile and joins the fourth section 41 d in tip which terminates the rod.
La gorge annulaire 45 est munie d'un joint de fermeture 46. Comme dans le mode de réalisation précédent, le joint de fermeture 46 peut avantageusement être en élastomère et de forme tubulaire cylindrique à section circulaire à épaisseur constante. La gorge annulaire 45 présente une profondeur qui augmente en direction de l'orifice amont 12a.  The annular groove 45 is provided with a closure seal 46. As in the previous embodiment, the closure seal 46 may advantageously be made of elastomer and of cylindrical tubular shape with circular section of constant thickness. The annular groove 45 has a depth which increases towards the upstream orifice 12a.
Dans ce mode de réalisation, le bouchon doseur 100 comprend en outre un élément de fermeture tel qu'une bille 47, engagée en déplacement axial dans le passage axial de fluide 12, et maintenue en position par un ressort conique 48. Le diamètre de la bille 47 est choisi suffisant pour ne pas pénétrer dans le récipient 2, et suffisant pour créer l'étanchéité lorsque la bille 47 est au contact de l'épaulement inférieur 43.  In this embodiment, the measuring cap 100 further comprises a closure element such as a ball 47, engaged in axial displacement in the axial fluid passage 12, and held in position by a conical spring 48. The diameter of the ball 47 is chosen sufficient not to penetrate the container 2, and sufficient to create the seal when the ball 47 is in contact with the lower shoulder 43.
Dans un mode de réalisation non illustré, le ressort pourrait être droit et en appui sur le tube plongeur 49 (figures 8 à 1 1 ) dont le diamètre intérieur est inférieur à celui de la bille 47.  In a non-illustrated embodiment, the spring could be straight and resting on the plunger tube 49 (FIGS. 8 to 11), the inside diameter of which is smaller than that of the ball 47.
On va maintenant décrire le fonctionnement du bouchon doseur 100. Dans la position illustrée sur la figure 9, le bouchon doseur 1 00 est dans une position d'obturation dans laquelle le produit contenu dans le récipient 2 ne peut pas être expulsé vers l'extérieur du récipient 2. Le quatrième tronçon 41 d en pointe de l'organe d'obturation 41 coopère avec un rétrécissement 50 du passage axial de fluide 12, en amont du passage de sortie de fluide 13. Le rétrécissement 50 forme un siège contre lequel peut venir porter le quatrième tronçon 41 d, assurant alors une obturation étanche du passage axial de fluide 12.  The operation of the measuring cap 100 will now be described. In the position illustrated in FIG. 9, the measuring cap 100 is in a closed position in which the product contained in the container 2 can not be expelled outwards. of the container 2. The fourth section 41 d at the tip of the closure member 41 cooperates with a narrowing 50 of the axial fluid passage 12, upstream of the fluid outlet passage 13. The narrowing 50 forms a seat against which can bring the fourth section 41 d, then ensuring sealing of the axial fluid passage 12.
Lorsque l'organe d'obturation 41 est dans une position intermédiaire, le quatrième tronçon 41 d en pointe ne coopère plus avec le rétrécissement 50 du passage axial de fluide 12. Ainsi, est réalisée une ouverture partielle qui laisse passer le fluide sous pression selon un débit que l'utilisateur peut contrôler par déplacement axial de l'organe obturateur 41 en dévissant plus ou moins l'élément obturateur 40. La forme en pointe du quatrième tronçon 41 d permet une ouverture progressive. Afin d'adapter le débit d'écoulement du fluide en fonction de la granulométrie du fluide à distribuer, le diamètre du troisième tronçon 41 c et la forme de la pointe 41 d pourront être modifiés. When the closure member 41 is in an intermediate position, the fourth section 41 d in point no longer cooperates with the constriction 50 of the axial fluid passage 12. Thus, a partial opening is made which passes the fluid under pressure according to a flow rate that the user can control by axial displacement of the shutter member 41 by more or less unscrewing the shutter member 40. The pointed shape of the fourth section 41 d allows a gradual opening. In order to adapt the flow rate of the fluid as a function of the particle size of the fluid to be dispensed, the diameter of the third section 41c and the shape of the tip 41d can be modified.
Dans une position d'ouverture, le produit contenu dans le récipient 2 est expulsé vers l'extérieur du récipient 2 car le troisième tronçon 41c n'est plus en contact avec le rétrécissement 50 du passage axial de fluide 12, ce qui a pour effet de rompre l'étanchéité.  In an open position, the product contained in the container 2 is expelled towards the outside of the container 2 because the third section 41c is no longer in contact with the narrowing 50 of the axial fluid passage 12, which has the effect of to break the seal.
Lorsqu'un utilisateur dévisse l'élément obturateur 40, la tige de l'organe d'obturation 41 remonte dans le passage axial de fluide 12. Le joint de fermeture 46, qui reste pressé contre la paroi du passage axial de fluide 12, empêche la progression du fluide vers l'organe de manœuvre 42.  When a user unscrews the shutter member 40, the stem of the shutter member 41 rises in the axial fluid passage 12. The closure seal 46, which remains pressed against the wall of the axial fluid passage 12, prevents the progression of the fluid towards the operating member 42.
La bille 47 remplit la double fonction de clapet de remplissage et de clapet de sécurité. La fonction de clapet de sécurité est illustrée sur la figure 8.  The ball 47 fulfills the dual function of filling valve and safety valve. The safety valve function is illustrated in Figure 8.
En effet, pour le remplissage, l'élément obturateur 40 est absent, on bouche le passage de sortie de fluide 13, la bille 47 est repoussée par le ressort conique 48 vers l'épaulement inférieur 43. Par contact entre la bille 47 et Pépaulement inférieur 43, l'étanchéité est assurée.  Indeed, for filling, the shutter member 40 is absent, the fluid outlet passage 13 is closed, the ball 47 is pushed back by the conical spring 48 towards the lower shoulder 43. By contact between the ball 47 and the shoulder lower 43, the seal is assured.
Lors du remplissage, le fluide entrant sous pression repousse la bille 47 vers l'intérieur du récipient 2 de sorte que la bille 47 n'est plus en contact avec l'épaulement inférieur 43, et laisse passer le fluide sous pression vers l'intérieur du récipient 2.  During filling, the fluid entering the pressure pushes the ball 47 towards the inside of the container 2 so that the ball 47 is no longer in contact with the lower shoulder 43, and lets the pressurized fluid inwards of the container 2.
La bille 47 joue le rôle de clapet anti-retour en ce qu'elle empêche la sortie du fluide contenu dans le récipient 2, car le fluide qui se déplace vers la sortie repousse la bille 47 en contact avec l'épaulement inférieur 43, créant l'étanchéité et empêchant l'expulsion de fluide sous pression vers l'extérieur du récipient 2.  The ball 47 acts as a non-return valve in that it prevents the exit of the fluid contained in the container 2, because the fluid that moves towards the outlet pushes the ball 47 into contact with the lower shoulder 43, creating sealing and preventing the expulsion of fluid under pressure to the outside of the container 2.
La bille 47 joue aussi le rôle de clapet de sécurité, car si l'élément obturateur 40 est dévissé par accident, la bille 47 remonte et revient au contact de l'épaulement inférieur 43 pour créer l'étanchéité. Le fluide sous pression n'est alors pas expulsé vers l'extérieur du récipient 2.  The ball 47 also plays the role of safety valve, because if the shutter member 40 is unscrewed by accident, the ball 47 rises and returns to contact with the lower shoulder 43 to create the seal. The pressurized fluid is then not expelled towards the outside of the container 2.
Les figures 10 et 1 1 illustrent un troisième mode de réalisation de l'invention. La différence par rapport au second mode de réalisation est l'absence de ressort conique. La bille 47 est maintenue en position par une pression suffisante à l'intérieur du récipient 2 (figure 10).  Figures 10 and 1 1 illustrate a third embodiment of the invention. The difference with respect to the second embodiment is the absence of a conical spring. The ball 47 is held in position by sufficient pressure inside the container 2 (Figure 10).
Sur les figures 8 à 1 1 , est illustré un tube plongeur 49 pour guider le fluide depuis l'intérieur du récipient 2 vers l'extérieur. La bille 47 présente un diamètre supérieur au diamètre intérieur après emmanchement du tube plongeur 49, afin que la bille 47 ne tombe pas dans le récipient 2 (figure 1 1 ). De la sorte, la bille 47 est engagée entre le tube plongeur 49 et Pépaulement inférieur 43. In Figures 8 to 1 1, there is illustrated a dip tube 49 for guiding the fluid from the inside of the container 2 to the outside. The ball 47 has a diameter greater than the inside diameter after fitting of the dip tube 49, so that the ball 47 does not fall into the container 2 (Figure 1 1). In this way, the ball 47 is engaged between the dip tube 49 and the lower shoulder 43.
Le tube plongeur 49 n'est pas représenté sur les figures 1 à 7 mais il peut être prévu pour remplir notamment la même fonction de limitation de la course de la bille 47, ou la fonction d'appui du ressort 48.  The plunger tube 49 is not shown in FIGS. 1 to 7, but may be provided to fulfill in particular the same function of limiting the stroke of the ball 47, or the bearing function of the spring 48.
Dans les modes de réalisation des figures 8 à 11 , on peut avantageusement prévoir que le cône du pointeau 41 d présente un angle d'environ 60°, et le pointeau est tronqué pour ne pas détériorer la bille 47 lorsque le pointeau 41 d est au contact de la bille 47.  In the embodiments of FIGS. 8 to 11, it is advantageously possible for the cone of the needle 41 d to have an angle of approximately 60 °, and the needle to be truncated so as not to damage the ball 47 when the needle 41 d is at ball contact 47.
Les deuxième et troisième modes de réalisation conviennent plus particulièrement pour les fluides dont la granulométrie est inférieure à 2 mm.  The second and third embodiments are more particularly suitable for fluids whose particle size is less than 2 mm.
Le bouchon doseur peut être réalisé dans n'importe quel matériau présentant des caractéristiques alimentaires lorsque le récipient doit contenir et distribuer un fluide à usage alimentaire. Il pourra être réalisé en matière plastique ou en métal (par exemple l'acier inoxydable ou un alliage d'aluminium).  The measuring cap may be made of any material having food characteristics when the container is to contain and dispense food fluid. It may be made of plastic or metal (for example stainless steel or an aluminum alloy).
La sortie de fluide 13 pourrait présenter toute forme permettant l'adaptation d'un tube prolongateur permettant de distribuer le fluide de façon plus ergonomique.  The fluid outlet 13 could have any shape allowing the adaptation of an extension tube for dispensing the fluid more ergonomically.
Dans un mode de réalisation non illustré, l'angle de cône a de la portion tronconique de l'excroissance périphérique radiale 10 ne correspond pas à l'inclinaison β du bord intérieur de col du récipient. Ainsi, lors de la rotation de la partie pénétrante 9 une morsure est créée et bloque le corps 8 de façon ferme.  In a non-illustrated embodiment, the cone angle a of the frustoconical portion of the radial peripheral outgrowth 10 does not correspond to the inclination β of the inside collar edge of the container. Thus, during the rotation of the penetrating portion 9 a bite is created and blocks the body 8 firmly.
Dans un autre mode de réalisation non illustré et basé sur les modes de réalisation des figures 8 à 1 1 , la bille 47 pourrait être remplacée par un cylindre de diamètre sensiblement inférieur au diamètre du passage axial de fluide 12 et sensiblement supérieur au diamètre intérieur du ressort 48, le cas échéant. Ledit cylindre peut être muni d'une gorge sensiblement tronconique, comme la gorge 22a (figure 6). Un joint d'obturation, comme le joint d'obturation 23a, est prévu dans la gorge. L'étanchéité est réalisée comme illustré sur la figure 6, le joint d'étanchéité venant au contact d'un rétrécissement du passage axial de fluide, tel que le rétrécissement 50 (figures 8 à 1 1 ).  In another embodiment not illustrated and based on the embodiments of FIGS. 8 to 11, the ball 47 could be replaced by a cylinder of diameter substantially smaller than the diameter of the axial fluid passage 12 and substantially greater than the inside diameter of the spring 48, if any. Said cylinder may be provided with a substantially frustoconical groove, such as the groove 22a (FIG. 6). A seal, such as the seal 23a, is provided in the groove. The seal is made as shown in FIG. 6, the seal coming into contact with a narrowing of the axial fluid passage, such as the narrowing 50 (FIGS. 8 to 11).
La présente invention n'est pas limitée aux modes de réalisation qui ont été explicitement décrits, mais elle en inclut les diverses variantes et généralisations contenues dans le domaine des revendications ci-après.  The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof within the scope of the claims below.

Claims

REVENDICATIONS
1 - Bouchon doseur (1 ; 100) pour récipient (2) sous pression apte à contenir un fluide, le récipient (2) comprenant un fond (3), une paroi latérale (4) sensiblement cylindrique qui se rétrécit vers un col (5) ayant une face frontale de col (6) et un bord intérieur de col (7), 1 - Dosing cap (1; 100) for a container (2) under pressure capable of containing a fluid, the container (2) comprising a bottom (3), a substantially cylindrical side wall (4) which tapers towards a neck (5 ) having a front collar face (6) and an inner collar edge (7),
caractérisé en ce qu'il comprend : characterized in that it includes:
- un corps (8 ; 80) à axe longitudinal ayant : - a body (8; 80) with a longitudinal axis having:
- une partie pénétrante (9), qui est conformée pour pénétrer dans le col (5) du récipient (2), et qui comporte une excroissance périphérique radiale (10) apte à s'engager en appui contre le bord intérieur de col (7), - a penetrating part (9), which is shaped to penetrate the neck (5) of the container (2), and which comprises a radial peripheral projection (10) capable of engaging in support against the inner edge of the neck (7 ),
- une partie émergeante (11), avec un passage axial de fluide (12) communiquant avec l'intérieur du récipient (2) et communiquant avec l'extérieur du récipient (2) par un passage de sortie de fluide (13), - an emerging part (11), with an axial fluid passage (12) communicating with the interior of the container (2) and communicating with the exterior of the container (2) via a fluid outlet passage (13),
- un épaulement d'étanchéité (14) à la jonction entre la partie pénétrante (9) et la partie émergeante (11), - a sealing shoulder (14) at the junction between the penetrating part (9) and the emerging part (11),
- un joint d'étanchéité (15), conformé pour porter sur l'épaulement d'étanchéité (14) et sur la face frontale de col (6), - a seal (15), shaped to bear on the sealing shoulder (14) and on the front face of the neck (6),
- une bague d'assemblage (16), apte à se fixer de façon amovible sur la partie émergeante (11 ) du corps (8 ; 80) en serrant axialement le premier joint d'étanchéité (15) contre la face frontale de col (6) et contre l'épaulement d'étanchéité (14), et - an assembly ring (16), capable of being removably fixed to the emerging part (11) of the body (8; 80) by axially tightening the first seal (15) against the front face of the neck ( 6) and against the sealing shoulder (14), and
- un organe d'obturation (17 ; 41) apte à obturer et ouvrir sélectivement le passage de sortie de fluide (12), commandé par un organe de manœuvre (18 ; 42) accessible sur la partie émergeante (11 ) du corps (8 ; 80). - a closing member (17; 41) capable of selectively closing and opening the fluid outlet passage (12), controlled by a operating member (18; 42) accessible on the emerging part (11) of the body (8 ; 80).
2 - Bouchon doseur (1 ) selon la revendication 1 , caractérisé en ce que l'excroissance périphérique radiale (10) comporte une portion tronconique (10a) dont l'angle de cône a correspond sensiblement à l'inclinaison du bord intérieur de col (7) du récipient (2). 2 - Dosing cap (1) according to claim 1, characterized in that the radial peripheral projection (10) comprises a frustoconical portion (10a) whose cone angle a corresponds substantially to the inclination of the inner edge of the neck ( 7) of the container (2).
3 - Bouchon doseur (1) selon l'une des revendications 1 ou 2, caractérisé en ce que la partie pénétrante (9) comprend au moins une face latérale 3 - Dosing cap (1) according to one of claims 1 or 2, characterized in that the penetrating part (9) comprises at least one side face
(19a ; 19b) en retrait définissant une largeur (190) inférieure au diamètre (D) du col (5) du récipient (2). (19a; 19b) recessed defining a width (190) less than the diameter (D) of the neck (5) of the container (2).
4 - Bouchon doseur (1 ) selon la revendication 3, caractérisé en ce que ladite au moins une face latérale (19a ; 19b) est positionnée de sorte qu'elle autorise une légère déformation locale du col (5) qui génère une fuite au-delà d'une pression prédéterminée à l'intérieur du récipient (2). 5 - Bouchon doseur (1 ) selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il est réalisé en métal ou en matière plastique. 4 - Dosing cap (1) according to claim 3, characterized in that said at least one side face (19a; 19b) is positioned so that it allows a slight local deformation of the neck (5) which generates a leak au- beyond a predetermined pressure inside the container (2). 5 - Dosing cap (1) according to any one of claims 1 to 4, characterized in that it is made of metal or plastic.
6 - Bouchon doseur (1 ) selon la revendication 5, caractérisé en ce que le métal est de l'acier inoxydable ou un alliage d'aluminium. 6 - Dosing cap (1) according to claim 5, characterized in that the metal is stainless steel or an aluminum alloy.
7 - Bouchon doseur (1 ) selon l'une quelconque des revendications 1 à 7 - Dosing cap (1) according to any one of claims 1 to
6, caractérisé en ce que la bague d'assemblage (16) est fixée au corps (8 ; 80) par vissage, pressage ou goupillage. 6, characterized in that the assembly ring (16) is fixed to the body (8; 80) by screwing, pressing or pinning.
8 - Bouchon doseur (1 ) selon l'une quelconque des revendications 1 à 8 - Dosing cap (1) according to any one of claims 1 to
7, caractérisé en ce que la bague d'assemblage (16) comporte une jupe périphérique (20) venant entourer le col (5) du récipient (2) en laissant un espace de fuite (E) entre son bord extrême (21 ) et la paroi latérale (4) du récipient (2). 7, characterized in that the assembly ring (16) comprises a peripheral skirt (20) surrounding the neck (5) of the container (2) leaving a leakage space (E) between its end edge (21) and the side wall (4) of the container (2).
9 - Bouchon doseur (1 ) selon l'une quelconque des revendications 1 à 9 - Dosing cap (1) according to any one of claims 1 to
8, caractérisé en ce que l'organe d'obturation (17) est une tige montée à coulissement dans le passage axial de fluide (12) entre une position d'obturation (P1 ) et une position d'ouverture (P2), et comporte deux gorges annulaires (22a et8, characterized in that the closing member (17) is a rod mounted to slide in the axial fluid passage (12) between a closing position (P1) and an opening position (P2), and has two annular grooves (22a and
22b) recevant des joints d'obturation (23a et 23b) annulaires. 22b) receiving annular seals (23a and 23b).
10 - Bouchon doseur (1 ) selon l'une quelconque des revendications 1 à 10 - Dosing cap (1) according to any one of claims 1 to
8, caractérisé en ce que l'organe d'obturation (41 ) est une vis pointeau que l'on actionne par vissage ou dévissage dans le corps (80). 8, characterized in that the shutter member (41) is a needle screw which is actuated by screwing or unscrewing in the body (80).
1 1 - Bouchon doseur (1 ) selon la revendication 10, caractérisé en ce que l'organe d'obturation (41 ) comprend en outre un élément de fermeture (47) positionné dans le passage axial de fluide (12) à proximité du col du récipient (2) et tenu éloigné de celui-ci par un ressort (48) ou par la pression interne du récipient 1 1 - Dosing cap (1) according to claim 10, characterized in that the closing member (41) further comprises a closing element (47) positioned in the axial fluid passage (12) near the neck of the container (2) and held away from it by a spring (48) or by the internal pressure of the container
(2). (2).
12 - Récipient (2) apte à contenir un fluide sous pression, caractérisé en ce qu'il est fermé par un bouchon doseur (1 ) selon l'une quelconque des revendications 1 à 1 1 , et en ce que sa pression interne initiale est supérieure à 20 bars. 12 - Container (2) capable of containing a fluid under pressure, characterized in that it is closed by a measuring cap (1) according to any one of claims 1 to 1 1, and in that its initial internal pressure is greater than 20 bars.
EP10784581A 2009-11-17 2010-10-27 Measuring cap for a container that can house a pressurized fluid, and container provided with one such cap Withdrawn EP2501629A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0958086A FR2952618B1 (en) 2009-11-17 2009-11-17 DOSING PLUG FOR CONTAINER CONTAINING PRESSURIZED FLUID AND CONTAINER HAVING SUCH PLUG
PCT/IB2010/054869 WO2011061651A1 (en) 2009-11-17 2010-10-27 Measuring cap for a container that can house a pressurized fluid, and container provided with one such cap

Publications (1)

Publication Number Publication Date
EP2501629A1 true EP2501629A1 (en) 2012-09-26

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EP10784581A Withdrawn EP2501629A1 (en) 2009-11-17 2010-10-27 Measuring cap for a container that can house a pressurized fluid, and container provided with one such cap

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US (1) US20120228337A1 (en)
EP (1) EP2501629A1 (en)
JP (1) JP2013510780A (en)
KR (1) KR101838644B1 (en)
CN (1) CN102612472B (en)
CA (1) CA2780782A1 (en)
FR (1) FR2952618B1 (en)
MX (1) MX2012005696A (en)
RU (1) RU2012124987A (en)
WO (1) WO2011061651A1 (en)

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Also Published As

Publication number Publication date
CA2780782A1 (en) 2011-05-26
WO2011061651A1 (en) 2011-05-26
KR20120116413A (en) 2012-10-22
CN102612472B (en) 2014-07-23
KR101838644B1 (en) 2018-04-26
MX2012005696A (en) 2012-09-07
FR2952618B1 (en) 2011-11-25
US20120228337A1 (en) 2012-09-13
RU2012124987A (en) 2013-12-27
JP2013510780A (en) 2013-03-28
FR2952618A1 (en) 2011-05-20
CN102612472A (en) 2012-07-25

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