EP1633657A1 - Valve doseuse de distribution de produit fluide - Google Patents
Valve doseuse de distribution de produit fluideInfo
- Publication number
- EP1633657A1 EP1633657A1 EP04742690A EP04742690A EP1633657A1 EP 1633657 A1 EP1633657 A1 EP 1633657A1 EP 04742690 A EP04742690 A EP 04742690A EP 04742690 A EP04742690 A EP 04742690A EP 1633657 A1 EP1633657 A1 EP 1633657A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- chamber
- metering
- metering chamber
- spring
- 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.)
- Granted
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
- B65D83/44—Valves specially adapted therefor; Regulating devices
- B65D83/52—Valves specially adapted therefor; Regulating devices for metering
- B65D83/54—Metering valves ; Metering valve assemblies
Definitions
- the present invention relates to a metering valve and a fluid dispenser device comprising such a valve.
- Dosing valves are well known in the state of the art, in particular for dispensing fluid, liquid or pulverulent products.
- the product is generally associated with a propellant gas and actuation of the valve allows the distribution of a dose of product by means of said propellant gas.
- the metering valves generally comprise a valve body defining a metering chamber, the valve sliding in said metering chamber between a rest position and a dispensing position. In the rest position of the valve, it is not connected with the interior of the metering chamber, and the metering chamber is connected with the reservoir so that it can be filled, generally by gravity, with the fluid and the propellant gas, to define the dose of product to be dispensed during the next actuation.
- valve When the valve is actuated, the valve is pressed into the valve body, and the passage between the metering chamber and the reservoir is closed. Then, when the valve reaches its dispensing position, the metering chamber is connected to the dispensing orifice of the valve, allowing the expulsion of the dose of product contained in the metering chamber, through the orifice of valve distribution.
- the valve When the user releases his pressure on the valve, the latter is automatically returned to its rest position by a return spring, and during this operation, the metering chamber is again filled with the fluid and the propellant, generally by gravity when the valve is a valve used in the inverted position, that is to say with the valve disposed under the tank.
- the metering chamber is therefore at the same pressure as the reservoir in the valve rest position, since it is connected directly to the latter. This implies high stresses on the seals provided at the metering chamber, and risks causing a return of product to the reservoir during storage, when the valve is stored in an upright position.
- the valve generally has internal channels of complex shapes, for example in the form of a siphon, but due to the pressure existing in the chamber dosing, the maintenance of the dose, and therefore the accuracy of the dosage are not absolutely guaranteed.
- valve return spring is disposed in the body of the valve, generally at the level of the passage connecting the metering chamber or reservoir.
- the spring is therefore in contact with the fluid and the propellant.
- this can cause damage to the fluid.
- the object of the present invention is to provide a metering valve which does not have the abovementioned drawbacks.
- the present invention aims to provide a metering valve which guarantees absolute dosing precision on each actuation of the valve, as well as total dose reproducibility on each actuation.
- the present invention also aims to provide such a metering valve in which the precision of the metering and the reproducibility of the dose is independent of the duration of the storage time of the valve between two actuations.
- the present invention also aims to provide such a valve avoiding any risk of alteration of the fluid product, including in the event of prolonged storage.
- the present invention also aims to provide such a metering valve which is simple and inexpensive to manufacture and assemble, and reliable in use.
- the present invention therefore relates to a metering valve for dispensing a fluid product, comprising a valve body and a valve sliding relative to said valve body between a rest position and a dispensing position, said valve comprising a metering chamber intended contain the dose of product expelled on each actuation, characterized in that valve rest position, said metering chamber is at atmospheric pressure.
- the valve comprises a filling chamber connected on the one hand to a fluid reservoir and on the other hand to said metering chamber, the passage between the metering chamber and the filling chamber being closed in the rest position and in the valve dispensing position, said passage being open when the valve moves between its rest and dispensing positions.
- said filling chamber is connected to said fluid reservoir in the valve rest position, the passage between the filling chamber and the reservoir being closed when the valve is not in the rest position.
- the metering chamber fills when the valve moves from its rest position to its dispensing position.
- said valve comprises a connecting channel comprising an inlet and an outlet offset axially with respect to said inlet, said connecting channel being entirely in the metering chamber in the rest position, entirely in the filling chamber in the dispensing position, and connecting said metering chamber to said filling chamber when the valve is between its rest and dispensing positions, said inlet being then disposed in the filling chamber and said outlet being disposed in said metering chamber.
- the product contained in the metering chamber is expelled when the valve arrives in its dispensing position.
- a spring biases the valve towards its rest position, said spring being arranged out of any contact with said fluid product.
- the valve body comprises a spring chamber insulated from any contact with the fluid, the valve passing through said spring chamber, the spring being disposed in said spring chamber around said valve.
- the valve has a central expulsion channel connecting the dispensing orifice of the valve to an opening opening into the metering chamber in the dispensing position of the valve, said opening being isolated from said metering chamber when the valve n is not in the distribution position.
- the valve body comprises a spring chamber, a metering chamber, and a filling chamber, the spring chamber being separated from the metering chamber by a first transverse wall, the metering chamber being separated from the metering chamber. filling by a second transverse wall, and the filling chamber being separated from the reservoir by a third transverse wall, said valve sliding through said spring, metering and filling chambers between its rest and filling positions, passing through so sealing said first, second and third transverse walls.
- the present invention also relates to a device for dispensing a fluid product comprising a metering valve as described above.
- FIG. 1 is a diagrammatic view in cross section of a metering valve according to the present invention, in the valve rest position,
- FIG. 2 is a view similar to that of FIG. 1, in an intermediate position of the valve, between the rest position and the dispensing position, and
- Figure 3 is a view similar to those of Figures 1 and 2, in the valve dispensing position.
- a metering valve comprising a valve body 10.
- This valve is assembled on a reservoir (not shown), which contains fluid, for example liquid or powder, generally associated with propellant intended for allow product distribution to through said valve.
- the valve body 10 can be assembled on said reservoir (not shown) by means of a fixing ring or capsule, in particular a crimping capsule 5, with preferably the interposition of a valve seal 6 between the valve body 10 and said crimping cap 5, and a neck seal (not shown), between the neck of the reservoir (not shown), and said crimping cap 5.
- the valve body 10 has a thicker end edge 7 intended to be fixed in said crimping cap 5.
- valve body 10 can be associated with a filling ring (not shown), intended to fill at least partially the dead volume between the neck of the reservoir and the crimping cap 5, and / or to prevent contact between the product fluid and valve seal 6.
- the valve body 10 comprises a metering chamber 11 intended to contain a dose of fluid product, this dose of product being dispensed at each actuation of the valve.
- this metering chamber 11 is at atmospheric pressure, when the valve is in the rest position.
- the metering chamber 11 is isolated from the fluid reservoir in the rest position of the valve, so that no overpressure is exerted on the gaskets dehumidifying said metering chamber 11 during storage, and so that there is no risk that the dose of product is reduced due to prolonged storage, since during this storage, the metering chamber 11 is empty and does not contain any fluid.
- the metering chamber 11 does not fill until the valve 20, which slides in the valve body 10, is moved from its rest position (shown in Figure 1) to its dispensing position (shown in Figure 3).
- the filling of the metering chamber 11 takes place between said rest and filling positions, in the intermediate position shown in FIG. 2.
- the valve 20 has a connecting channel 15 forming a passage between the metering chamber 11 and a filling chamber 12 provided in the valve body 10.
- This connecting channel is closed at valve rest position, in which it is disposed entirely in the metering chamber 11.
- this channel 15 is closed in the valve dispensing position, in which it is disposed entirely in the filling chamber 12. This only in the intermediate position shown in FIG.
- this connecting channel 15 connects the filling chamber 12 to the metering chamber 11.
- this connecting channel 15 can have an inlet 15a and an outlet 15b, said inlet 15a being disposed in the filling chamber 12 and said outlet 15b being disposed in the metering chamber 11, in said intermediate position of the valve.
- the resuspension chamber 12 is returned to the reservoir (not shown) in the valve rest position.
- the valve 20 is actuated and that it is therefore moved axially inside the valve body, the passage 16 between the filling chamber 12 and the tank is closed, thus isolating said filling chamber 12 from said tank.
- the volume of the filling chamber 12 corresponds to the volume of the metering chamber 11, so that when the valve passes into the intermediate position, the entire filling chamber 12 is emptied into the metering chamber 11, at across the Uaison Canal 15.
- the valve 20 has an axial expulsion channel 21 opening into a dispensing orifice 22, said expulsion channel 21 comprising an inlet orifice 23.
- This inlet orifice 23, generally radial, is provided for open into the metering chamber 11 in the valve dispensing position. This means that the dose of product contained in the metering chamber 11 is expelled through the valve 20 when the latter arrives in the dispensing position, which is shown in FIG. 3, and which corresponds to the depressed position of the valve 20 inside the valve body 10.
- the Uaison channel 15 passes through the intermediate position in which it connects the filling chamber 12 to the metering chamber 11.
- the filling chamber 12 is empty and is isolated from the reservoir, as is the metering chamber 11, so that this passage does not cause any change in the state of these two chambers, and in particular does not fill the metering chamber 11.
- the valve 20 returns again to its rest position, the metering chamber 11 is always at atmospheric pressure, as after dispensing the dose during the previous actuation. The metering chamber 11 is therefore at atmospheric pressure in the valve rest position.
- the resuspension chamber 12 is again connected to the reservoir (not shown) through the passage 16, which allows resuspension of this filling chamber 12, in particular by gravity when the valve is used in the inverted position.
- the valve body 10 also comprises a spring chamber 13 in which is arranged the spring 25 which moves the valve 20 towards its rest position.
- this spring 25 is disposed out of any contact with the fluid, as shown in the figures. This is achieved in that the spring chamber 13 is arranged in the valve body 10 by being leaktightly separated from the metering chamber 11, the valve sliding in leaktight manner in said spring chamber 13, and the spring 25 being disposed around said valve 20 in this spring chamber 13.
- the spring chamber 13 is separated from the metering chamber 11 by a first transverse wall 31, preferably associated with a seal against which the said valve 20 slides in leaktight manner.
- said metering chamber 11 is sealingly separated from the filling chamber 12 by a second transverse wall 32, also preferably associated with a seal against which said valve 20 slides so waterproof.
- the filling chamber 12 can also advantageously be separated from the reservoir (not shown) by a third transverse wall 33, also preferably associated with a seal against which said valve 20 slides in leaktight manner.
- connection channel 15 The only connection between the filling chamber 12 and the metering chamber 11 is made by means of the connection channel 15, this connection channel being open only in the intermediate position located between the rest and distribution positions of the valve. 20. Finally, the metering chamber 13 is never connected to the metering chamber.
- This implementation is particularly advantageous in that it guarantees on the one hand that the metering chamber 11 is at atmospheric pressure in the rest position of the valve, which is particularly advantageous in particular when the usage times between two valve actuations are relatively long, and on the other hand that the spring 25 is never in contact with the fluid product, which avoids any risk of alteration of the product due to contact with this spring, generally made of metal .
- the spring could also be arranged in the lower part of the valve body, for example in the rempUssage chamber, to limit the number of seals. In this case, however, it would be in contact with the fluid.
- the present invention therefore makes it possible to provide a particularly reliable metering valve, which guarantees perfect and total reproducibility of the dose on each actuation, while being of simple construction and reliable operation.
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)
- Sliding Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0305857A FR2854877B1 (fr) | 2003-05-15 | 2003-05-15 | Valve doseuse de distribution de produit fluide. |
PCT/FR2004/001134 WO2004101394A1 (fr) | 2003-05-15 | 2004-05-10 | Valve doseuse de distribution de produit fluide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1633657A1 true EP1633657A1 (fr) | 2006-03-15 |
EP1633657B1 EP1633657B1 (fr) | 2008-08-20 |
Family
ID=33306385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04742690A Expired - Lifetime EP1633657B1 (fr) | 2003-05-15 | 2004-05-10 | Valve doseuse de distribution de produit fluide |
Country Status (7)
Country | Link |
---|---|
US (1) | US7040513B2 (fr) |
EP (1) | EP1633657B1 (fr) |
JP (1) | JP4557980B2 (fr) |
CN (1) | CN100564192C (fr) |
DE (1) | DE602004015979D1 (fr) |
FR (1) | FR2854877B1 (fr) |
WO (1) | WO2004101394A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2014372B1 (fr) * | 2007-06-08 | 2009-12-16 | Mettler-Toledo AG | Dispositif de dosage pour substances en forme de poudre ou de pâte |
NZ590256A (en) * | 2008-07-11 | 2013-03-28 | Map Pharmaceuticals Inc | INHALER CANISTER WITH PRIMELESS VALVE AND VOLUME LESS THAN 10mL |
FR2948645B1 (fr) * | 2009-07-30 | 2015-06-26 | Valois Sas | Valve de distribution de produit fluide |
GB0917731D0 (en) * | 2009-10-09 | 2009-11-25 | Univ Salford | Liquid dispensing apparatus |
FR2968283B1 (fr) * | 2010-12-03 | 2013-01-04 | Valois Sas | Valve de distribution de produit fluide. |
US20120168460A1 (en) * | 2010-12-30 | 2012-07-05 | Boris Tolstykh | Reusable dispensing valve for pressurized canisters |
CN104627503B (zh) * | 2014-08-07 | 2017-12-22 | 中山华方包装有限公司 | 取量装置及采用该取量装置的药瓶、奶瓶 |
EP3449223B1 (fr) * | 2016-04-27 | 2022-07-06 | 1Touch Holdings, Inc. | Distributeur de fluide doseur réglable pour emballages de fluide souples |
EP3803289B1 (fr) * | 2018-05-29 | 2022-07-06 | BASF Coatings GmbH | Récipient à tête de soupape destiné au dosage pneumatique et installation de dosage comprenant un tel récipient |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2980301A (en) * | 1958-09-02 | 1961-04-18 | Riker Laboratories Inc | Metering valve for aerosol container |
US3176889A (en) * | 1961-08-14 | 1965-04-06 | Potapenko Gennady | Pressurized dispenser with integral stem seal |
US3269615A (en) * | 1964-05-27 | 1966-08-30 | Jr Royal T Ferry | Aerosol container with metering valve |
GB1201918A (en) * | 1966-12-21 | 1970-08-12 | Bespak Industries Ltd | Improvements in or relating to valves for pressurised dispensers |
US3547317A (en) * | 1968-07-15 | 1970-12-15 | Green Edward | Valve assembly for dispensing metered amounts of pressurized product |
US4506803A (en) * | 1982-08-09 | 1985-03-26 | Hoffmann-La Roche Inc. | Metered aerosol dispenser and method of using the dispenser |
-
2003
- 2003-05-15 FR FR0305857A patent/FR2854877B1/fr not_active Expired - Lifetime
-
2004
- 2004-05-10 DE DE602004015979T patent/DE602004015979D1/de not_active Expired - Lifetime
- 2004-05-10 CN CNB2004800132679A patent/CN100564192C/zh not_active Expired - Fee Related
- 2004-05-10 JP JP2006530341A patent/JP4557980B2/ja not_active Expired - Fee Related
- 2004-05-10 WO PCT/FR2004/001134 patent/WO2004101394A1/fr active IP Right Grant
- 2004-05-10 EP EP04742690A patent/EP1633657B1/fr not_active Expired - Lifetime
- 2004-05-13 US US10/844,363 patent/US7040513B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2004101394A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1791537A (zh) | 2006-06-21 |
FR2854877A1 (fr) | 2004-11-19 |
EP1633657B1 (fr) | 2008-08-20 |
US20040226970A1 (en) | 2004-11-18 |
JP2007533920A (ja) | 2007-11-22 |
CN100564192C (zh) | 2009-12-02 |
US7040513B2 (en) | 2006-05-09 |
WO2004101394A1 (fr) | 2004-11-25 |
DE602004015979D1 (de) | 2008-10-02 |
FR2854877B1 (fr) | 2007-04-20 |
JP4557980B2 (ja) | 2010-10-06 |
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