EP4255824A1 - Dispositif de distribution de produit fluide comportant une valve doseuse - Google Patents
Dispositif de distribution de produit fluide comportant une valve doseuseInfo
- Publication number
- EP4255824A1 EP4255824A1 EP21845087.2A EP21845087A EP4255824A1 EP 4255824 A1 EP4255824 A1 EP 4255824A1 EP 21845087 A EP21845087 A EP 21845087A EP 4255824 A1 EP4255824 A1 EP 4255824A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reservoir
- valve
- fluid product
- piston
- follower piston
- 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.)
- Pending
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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
- B65D83/64—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by pistons
-
- 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/141—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant specially adapted for specific contents or propellants
-
- 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/36—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant allowing operation in any orientation
-
- 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/42—Filling or charging means
- B65D83/425—Delivery valves permitting filling or charging
-
- 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
- B65D83/52—Metering valves; Metering devices
Definitions
- Fluid product dispensing device comprising a metering valve
- the present invention relates to a fluid dispenser device comprising a metering valve.
- metering valves in which each time the valve is actuated, a precise dose of fluid product is dispensed, are well known in the state of the art, and are generally assembled on a reservoir containing the fluid product and a propellant gas used to carry out the expulsion of the dose.
- So-called retention valves comprise a valve which, in the rest position, partially closes off the metering chamber. More precisely, the outside of the valve cooperates in a sealed manner with the chamber seal of the metering chamber, so that the metering chamber is only connected to the tank, in this rest position, via the internal channel of the valve.
- the metering chambers of so-called non-priming valves only fill up just before the actual actuation.
- the filling of the reservoir with the fluid product to be dispensed is generally done after assembly of the metering valve on the reservoir, through said metering valve.
- An important parameter for correct operation of a retention metering valve is to avoid emptying of the metering chamber during storage between two actuations, called “drain back", for example due to a vacuum inside. of the reservoir likely to increase after each actuation.
- valves must be used to function reliably.
- metering valves should be used in an inverted position, with the reservoir positioned above the valve, to ensure good metering accuracy.
- the object of the present invention is thus to provide such a device which limits or even prevents the “drain back” phenomenon.
- the present invention also aims to provide such a device which allows use in all desired orientations.
- the present invention also aims to provide such a device which is simple and inexpensive to manufacture and assemble, and which operates reliably.
- the subject of the present invention is therefore a fluid product dispensing device, comprising a reservoir containing the fluid product and a metering valve comprising a valve body containing a metering chamber, a valve sliding axially in said valve body between a position of rest and a dispensing position, for dispensing the contents of said metering chamber, said valve being biased towards its rest position by a valve spring, said fluid product comprising a liquid formulation consisting of one or more active principle(s) (s) in suspension and/or in solution in a liquefied propellant gas, said tank containing a follower piston which separates said tank between an upper part of the tank connected to the said metering valve and a lower part of the tank isolated from the said metering valve by the said follower piston, said reservoir containing a piston spring which urges said follower piston axially in the direction of said metering valve, said follower piston being adapted to slide axially in said reservoir in a sealed manner after each actuation, to compensate for the volume of
- said follower piston is pushed axially downwards by said fluid product during its filling in said reservoir, so that said follower piston compresses said piston spring and the air disposed in said lower part of the reservoir, until that a balance of pressures takes place between said upper part of the reservoir containing said fluid product in liquid form and said lower part of the reservoir containing the compressed air and said piston spring.
- said piston spring pushes said follower piston axially upwards to compensate for the reduction in volume generated by the dispensing of a dose of fluid product, without substantial modification of the pressure in said upper part of the reservoir, so that said fluid product always remains in liquid form.
- said piston spring exerts a pressure adapted to compensate for each decrease in volume after each actuation, but without exerting pressure on said follower piston likely to interfere with the filling of said reservoir with said fluid product.
- the fluid product can be a pharmaceutical, cosmetic or perfumery product.
- said propellant gas comprises an HFA gas, such as HFA 134a and/or HFA 227 and/or HFA-152a.
- said propellant gas comprises HFO1234ze.
- Figure 1 is a schematic cross-sectional view of a fluid product dispensing device, before filling the reservoir with the fluid product,
- Figure 2 is a view similar to that of Figure 1, during the filling of the reservoir with the fluid product, and
- Figure 3 is a view similar to that of Figure 2, in the rest position after several actuations.
- top, bottom, upper and lower refer to the upright position shown in the figures, and the terms “axial” and “radial” refer to the central longitudinal axis of the device.
- the device shown in the figures comprises a reservoir 1 containing the fluid product, and a metering valve 10.
- This metering valve 10 is assembled on the reservoir 1, preferably by means of a fixing element 2, which can be a capsule with crimp, screw or snap-on, and advantageously with the interposition of a neck seal 3.
- a ring 4 can be assembled around the body 11 of the metering valve 10, in particular to reduce the dead volume in the inverted position and to limit the contact of the fluid product with the seal of neck 3.
- This ring 4 can be of any shape, and the example of the figures is not limiting.
- the reservoir 1 contains the fluid product and the propellant gas, in particular a liquid formulation consisting of one or more active principle(s) in suspension and/or in solution in a liquefied propellant gas, as well as possibly excipients.
- the propellant gas advantageously comprises an HFA gas, for example HFA 134a and/or HFA 227.
- the propellant gas comprises HFA-152a.
- the fluid contained in the reservoir is thus pressurized.
- Metering valve 10 has a valve body 11 extending along a central longitudinal axis. Inside said valve body 10, a valve 20 slides between a rest position, which is that shown in Figure 3, and a dispensing position in which the valve 20 is pushed inside the valve body 11 .
- FIG. 2 shows the valve in the dispensing position when filling the reservoir 1 with the fluid product, filling carried out through the metering valve 10 with the valve 20 actuated.
- valve 20 is urged towards its rest position by a valve spring 12, which is arranged in the valve body 11 and which cooperates on the one hand with this valve body 11, and on the other hand with the valve 20, preferably with a radial flange 21 of the valve 20.
- a metering chamber 30 is defined inside the valve body 11, said valve 20 sliding inside said metering chamber 30 to allow the distribution of the contents of this when the metering valve is actuated.
- valve 20 can be made in two parts, namely an upper part (also called the valve top) and a lower part (also called the valve bottom).
- the metering chamber 30 is preferably defined between two annular seals, a valve seal 31 and a chamber seal 32, in a well-known manner.
- FIG. 3 shows the metering valve in the upright storage position, that is to say the position in which the metering chamber 30 is arranged above the reservoir 1 .
- the reservoir 1 contains a follower piston 5 and a piston spring 6 which urges the follower piston 5 axially upwards in the direction of said metering valve 10.
- the follower piston 5 is subjected on one side to the pressure exerted on it by the pressurized fluid product, and on the other side to the pressure exerted on it by the piston spring 6.
- the follower piston 5 is adapted to slide axially in the reservoir 1 in a sealed manner after each actuation, to compensate for the volume of each dispensed dose.
- the insertion of the follower piston 5 in the tank can for example be carried out through an open bottom of the closed tank, after insertion, by fixing an appropriate closing element. Alternatively, this insertion could also be achieved by an open top of the reservoir followed by the attachment of a reservoir neck portion.
- the piston spring 6 exerts a low pressure, sufficient to compensate for each decrease in fluid product after each actuation, but without exerting excessive pressure on the follower piston 5, which could prevent or complicate the filling of the reservoir 1 .
- the choice of the piston spring 6 and its properties therefore depends on the parameters of the device, such as the dimensions of the reservoir 1, the volume of each dose, the type of formulation, the pressure of the propellant gas, etc.
- the volume of the upper part 7 decreases, and the piston spring 6 pushes the follower piston 5 axially upwards to compensate for this decrease in volume without substantial modification of the pressure in the upper part 7 of the reservoir.
- the fluid product always remains in liquid form, which eliminates or at least greatly reduces the risk of "drain back".
- Another advantage of this implementation is the possibility of actuating the valve in any orientation, since the regulation of the volume and the pressure in the upper part 7 of the tank by the follower piston 5 and its piston spring 6 makes it possible not only to prevent “drain back” but also to ensure good filling of the metering chamber 30 after each actuation.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Devices For Dispensing Beverages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2012698A FR3117145B1 (fr) | 2020-12-04 | 2020-12-04 | Dispositif de distribution de produit fluide comportant une valve doseuse |
| PCT/FR2021/052177 WO2022117961A1 (fr) | 2020-12-04 | 2021-12-02 | Dispositif de distribution de produit fluide comportant une valve doseuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4255824A1 true EP4255824A1 (fr) | 2023-10-11 |
Family
ID=74347350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21845087.2A Pending EP4255824A1 (fr) | 2020-12-04 | 2021-12-02 | Dispositif de distribution de produit fluide comportant une valve doseuse |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230406606A1 (fr) |
| EP (1) | EP4255824A1 (fr) |
| FR (1) | FR3117145B1 (fr) |
| WO (1) | WO2022117961A1 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090112255A1 (en) * | 2007-10-26 | 2009-04-30 | Cohera Medical, Inc. | Spray devices and methods |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4223808A (en) * | 1978-07-21 | 1980-09-23 | Spray Safe Company, Inc. | Refillable dispensing device having wiper seal |
| US5007556A (en) * | 1990-04-18 | 1991-04-16 | Block Drug Company, Inc. | Metering dispenser |
| FR2692040B1 (fr) * | 1992-06-04 | 1994-08-19 | Valois | Dispositif doseur pour substance fluide. |
| FR2841159B1 (fr) * | 2002-06-20 | 2007-04-06 | Oreal | Dispositif pour le conditionnement et la pulverisation d'un produit |
| US11083915B2 (en) * | 2013-07-16 | 2021-08-10 | The Procter & Gamble Company | Antiperspirant spray devices and compositions |
| GB2544113B (en) * | 2015-11-09 | 2018-05-23 | Aer Beatha Ltd | Canister |
| CN105217166B (zh) * | 2015-11-11 | 2020-09-11 | 江阴民诚塑料制品有限公司 | 一种真空瓶 |
| EP3642135B1 (fr) * | 2017-06-20 | 2021-05-12 | APTAR France SAS | Dispositif de distribution de produit fluide |
-
2020
- 2020-12-04 FR FR2012698A patent/FR3117145B1/fr active Active
-
2021
- 2021-12-02 US US18/036,795 patent/US20230406606A1/en active Pending
- 2021-12-02 EP EP21845087.2A patent/EP4255824A1/fr active Pending
- 2021-12-02 WO PCT/FR2021/052177 patent/WO2022117961A1/fr not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090112255A1 (en) * | 2007-10-26 | 2009-04-30 | Cohera Medical, Inc. | Spray devices and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| US20230406606A1 (en) | 2023-12-21 |
| WO2022117961A1 (fr) | 2022-06-09 |
| FR3117145A1 (fr) | 2022-06-10 |
| FR3117145B1 (fr) | 2025-04-25 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
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| AK | Designated contracting states |
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| DAV | Request for validation of the european patent (deleted) | ||
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| 17Q | First examination report despatched |
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