EP0350376A1 - Dosierventil für Aerosolbehälter - Google Patents

Dosierventil für Aerosolbehälter Download PDF

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Publication number
EP0350376A1
EP0350376A1 EP89401876A EP89401876A EP0350376A1 EP 0350376 A1 EP0350376 A1 EP 0350376A1 EP 89401876 A EP89401876 A EP 89401876A EP 89401876 A EP89401876 A EP 89401876A EP 0350376 A1 EP0350376 A1 EP 0350376A1
Authority
EP
European Patent Office
Prior art keywords
valve
chamber
seal
metering
rod
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
Application number
EP89401876A
Other languages
English (en)
French (fr)
Other versions
EP0350376B1 (de
Inventor
Michel Brunet
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.)
Aptar France SAS
Original Assignee
Valois SAS
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 Valois SAS filed Critical Valois SAS
Publication of EP0350376A1 publication Critical patent/EP0350376A1/de
Application granted granted Critical
Publication of EP0350376B1 publication Critical patent/EP0350376B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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

  • the present invention relates to a device of the valve type for dispensing small doses of fluid, in particular of fluids containing solid particles in suspension and in which fluid is dissolved a propellant.
  • the invention more particularly relates to such a device which allows precise doses to be emitted, and the concentration of particles in suspension of which is constant.
  • a metering valve for aerosols Such a valve intended to be mounted in the neck of a container comprises a valve body in which is formed a metering chamber delimited by a cylindrical wall, with a washer-shaped seal at each end: a chamber seal towards the inside the container and a valve seal on the outlet side.
  • the chamber is traversed by a valve stem formed with a constriction in the region which passes through the chamber seal.
  • This rod ends at its inner end with a plug, for example in the form of a cone widening inwards.
  • a return spring keeps the cone engaged in the chamber seal when the valve is in the inactive or rest position, to close the passage and isolate the interior of the metering chamber.
  • the rod Inside the metering chamber, the rod carries a shutter which can, when the rod is lowered against the return spring, engage in the chamber seal to close it: in the rest position, the orifice the chamber seal is closed by the end cap or cone of the valve stem; when the rod is lowered towards the interior of the container, the orifice of the chamber seal is first cleared, by moving away from the cone, the passage is then established through the chamber seal, thanks to the constriction formed on the rod valve; then, when the downward movement of the rod continues, the shutter comes to close the orifice of the chamber seal, which is therefore closed, at rest, and in the low position of the valve rod.
  • a shutter which can, when the rod is lowered against the return spring, engage in the chamber seal to close it: in the rest position, the orifice the chamber seal is closed by the end cap or cone of the valve stem; when the rod is lowered towards the interior of the container, the orifice of the chamber seal is first cleared, by moving away from the cone, the passage is then established through the chamber
  • valve stem extends outside the valve chamber, upwards and outside the bottle, and this extension comprises, in a well-known manner, a central blind outlet channel communicating with the outside by a radial passage of exit.
  • This passage is located in a place such that in the rest position of the valve stem, the passage opens out of the chamber, and in the depressed position of the valve stem, the passage opens out inside the chamber.
  • the present invention aims to improve the filling of the metering chamber. This filling occurs partly during the descent of the pusher during actuation, just before the expulsion of the dose, and partly during the ascent of the pusher, just after the expulsion of the dose.
  • the subject of the present invention is a metering valve intended to be mounted in the neck of an aerosol container, for dispensing doses of a fluid in which a propellant gas is dissolved, of the type comprising a cylindrical metering chamber limited to one end inside by a washer-shaped chamber seal and at the other outer end by a washer-shaped valve seal, the chamber being traversed by a valve stem extending from the outside of the container to the inside, the rod being formed with a constriction which can pass through the chamber seal leaving a passage between the constriction and the inner edge of said chamber seal, said rod being biased towards the outside by a return spring and comprising a plug formed by an extra thickness at its inner end, outside the metering chamber, so that in the idle state, this plug is kept applied by the return spring to o close the opening of the chamber seal, said valve being characterized in that the rod comprises, inside the metering chamber, a shutter formed by an additional thickness, which, in a downward movement, can close the opening of the chamber seal when the rod is
  • the stroke h of the valve stem is greater than 4 mm, preferably of the order of 6 mm.
  • valve shown by way of example in the figures comprises a valve body 1 in which the various parts of the valve are arranged, held in position in the valve body by a capsule 2, which also serves to crimp the assembly onto the neck of a container, not shown.
  • a metering chamber 3 having a cylindrical wall, and limited at its ends, towards the inside of the container, by a chamber seal 4, and towards the outside by a valve seal 5.
  • the seals are held in position, spaced from each other, by a sleeve 6, the thickness of which is chosen to precisely define the volume of the metering chamber.
  • a valve stem 7 passes through the metering chamber, and extends outwardly out of the valve body and the container on which it is mounted. This rod is used to actuate the valve. It is biased towards an inactive or resting position by a spring reminder 8. One acts on the rod by means of a push button 9, engaged tightly on the latter.
  • the push button includes appropriate expulsion means 10 for projecting a dose of fluid (channels, passages, nozzle, etc.).
  • the valve stem 7 is formed with a central blind outlet channel 11, opening at the outer end of the stem, and closed in the other direction. This channel also communicates with the outside via a radial outlet passage 12. This passage is situated at a height on the rod such that in the rest position shown in FIGS. 1a and 1b it opens out to the outside of the body. valve, that is to say above the capsule 2, and when the rod is pushed in as far as possible (fig. 4), it opens inside the metering chamber 3.
  • the present invention relates to improvements which allow on the one hand a good filling of the chamber 3, to always have a full dose, that is to say precise, and on the other hand without settling or sedimentation.
  • the invention can be applied equally to valves which can be used in an inverted position, as in FIG. 1a, or which can be used in an upright position, as in FIG. 1b.
  • the bottom of the valve body 1 has a fairly large opening 1a.
  • additional passages 19 can be provided to facilitate the arrival of the fluid in the metering chamber when the valve is in the inverted position.
  • a dip tube 20 is adapted, in the known manner (FIG. 1b).
  • a chamber seal 4 is chosen with a large diameter opening, and a rod with a constriction 16 of great length. This last characteristic lengthens the depression stroke of the valve, and consequently the duration of the time during which the opening 17 of the chamber seal 4 is released.
  • the radial outlet passage 22 is located at a certain distance h above the capsule (see FIG. 1).
  • valve seal 5 generally has a thickness of one millimeter, and that the thickness of the capsule is approximately 0.4 millimeters, and a height h of approximately 2 mm if the stroke is 4 mm. This last length is a minimum; 6 mm are preferable.
  • this arrangement may be of interest in certain applications, on the other hand, according to the present invention, it is sought to obtain the seal in the rest state, at the level of the chamber seal, so that it remains sealed when the container with its valve is not used.
  • This arrangement avoids the sedimentation of the product if it is not homogeneous, in particular if it contains solid particles in suspension, application provided by the present invention.
  • the volume of product contained in the chamber keeps its proportions of constituents. The filling of the chamber, after the expulsion of a dose, occurs a little later, after the container has been shaken during the operating manipulation of the expulsion of a dose.
  • the part of the valve stem forming the obturator has an additional thickness inside the metering chamber, and in the rest state, as can be seen in FIG. 1, the extra thickness 18 is not in contact with the valve seal 5. There is no blockage of the rod 7 against this seal 5 under the effect of the return spring 8. The force of the return spring, at the state of rest is applied to the chamber seal 4 by the cone 13 of the valve stem, and it is at this seal 4 that the metering chamber 3 is sealed.
  • the obturator has a sufficiently large thickness, to allow the obturation of the opening of the chamber seal without requiring great precision of the stroke of the valve stem, nor of the stopping point. of the end of this race.
  • the thickness of the shutter 18 must be at least twice the thickness of the chamber seal 4.
  • the periphery of the latter may include grooves 13a.

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)
  • Nozzles (AREA)
EP89401876A 1988-07-04 1989-06-29 Dosierventil für Aerosolbehälter Expired - Lifetime EP0350376B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809001 1988-07-04
FR8809001A FR2634534B1 (fr) 1988-07-04 1988-07-04 Valve doseuse pour aerosols

Publications (2)

Publication Number Publication Date
EP0350376A1 true EP0350376A1 (de) 1990-01-10
EP0350376B1 EP0350376B1 (de) 1993-01-07

Family

ID=9368025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401876A Expired - Lifetime EP0350376B1 (de) 1988-07-04 1989-06-29 Dosierventil für Aerosolbehälter

Country Status (3)

Country Link
EP (1) EP0350376B1 (de)
DE (1) DE68904252T2 (de)
FR (1) FR2634534B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413226A1 (de) * 1994-04-15 1995-10-19 Meckenstock Fritz Gmbh Verschluß zur dosierten Abgabe von Flüssigkeit
GB2311982A (en) * 1996-04-09 1997-10-15 Bespak Plc Metered aerosol valve
EP0803449A1 (de) * 1996-04-26 1997-10-29 Bespak plc Dosierventil für Ausgabebehälter
FR2776741A1 (fr) 1998-03-30 1999-10-01 Valois Sa Valve doseuse amelioree
FR2798367A1 (fr) 1999-09-15 2001-03-16 Valois Sa Joint de soupape pour valve doseuse
US6644306B1 (en) 1998-03-19 2003-11-11 Smithkline Beecham Corporation Valve for aerosol container
FR2850166A1 (fr) * 2003-01-16 2004-07-23 Valois Sas Valve doseuse de distribution de produit fluide
FR2850165A1 (fr) * 2003-01-16 2004-07-23 Valois Sas Valve doseuse de distribution de produit fluide.
GB2562732A (en) * 2017-05-22 2018-11-28 Linde Ag Metering valve apparatus and method of metering a fluid

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860969B4 (de) * 1997-09-03 2006-03-09 Glaxo Group Ltd., Greenford Dosierventil für einen Druck-Abgabe-Behälter
FR2814726B1 (fr) * 2000-09-29 2003-04-04 Oreal Valve destinee a equiper un dispositif pour la distribution sous pression d'un produit, et dispositif ainsi equipe
US6832704B2 (en) 2002-06-17 2004-12-21 Summit Packaging Systems, Inc. Metering valve for aerosol container
CN114921934B (zh) * 2022-05-18 2023-10-20 湖北美的洗衣机有限公司 投放装置及衣物处理设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723055A (en) * 1950-09-01 1955-11-08 Risdon Mfg Co Metering-valve for aerosol-spray dispensers
FR1287373A (fr) * 1960-11-22 1962-03-16 Perfectionnements aux valves doseuses
FR1492188A (fr) * 1965-06-21 1967-08-18 Perfectionnements aux vannes distributrices
GB2004526A (en) * 1977-09-22 1979-04-04 Glaxo Group Ltd Metering valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723055A (en) * 1950-09-01 1955-11-08 Risdon Mfg Co Metering-valve for aerosol-spray dispensers
FR1287373A (fr) * 1960-11-22 1962-03-16 Perfectionnements aux valves doseuses
FR1492188A (fr) * 1965-06-21 1967-08-18 Perfectionnements aux vannes distributrices
GB2004526A (en) * 1977-09-22 1979-04-04 Glaxo Group Ltd Metering valve

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413226A1 (de) * 1994-04-15 1995-10-19 Meckenstock Fritz Gmbh Verschluß zur dosierten Abgabe von Flüssigkeit
GB2311982B (en) * 1996-04-09 2000-03-08 Bespak Plc Improvements in or relating to valves for dispensers
US5938085A (en) * 1996-04-09 1999-08-17 Bespak Plc Valves for dispensers
GB2311982A (en) * 1996-04-09 1997-10-15 Bespak Plc Metered aerosol valve
EP0803449A1 (de) * 1996-04-26 1997-10-29 Bespak plc Dosierventil für Ausgabebehälter
US6644306B1 (en) 1998-03-19 2003-11-11 Smithkline Beecham Corporation Valve for aerosol container
FR2776741A1 (fr) 1998-03-30 1999-10-01 Valois Sa Valve doseuse amelioree
WO1999050156A1 (fr) 1998-03-30 1999-10-07 Glaxo Group Limited Valve doseuse
FR2798367A1 (fr) 1999-09-15 2001-03-16 Valois Sa Joint de soupape pour valve doseuse
WO2001019701A1 (fr) 1999-09-15 2001-03-22 Valois S.A. Joint de soupape pour valve doseuse
FR2850166A1 (fr) * 2003-01-16 2004-07-23 Valois Sas Valve doseuse de distribution de produit fluide
FR2850165A1 (fr) * 2003-01-16 2004-07-23 Valois Sas Valve doseuse de distribution de produit fluide.
GB2562732A (en) * 2017-05-22 2018-11-28 Linde Ag Metering valve apparatus and method of metering a fluid

Also Published As

Publication number Publication date
FR2634534A1 (fr) 1990-01-26
EP0350376B1 (de) 1993-01-07
DE68904252T2 (de) 1993-05-19
FR2634534B1 (fr) 1990-10-12
DE68904252D1 (de) 1993-02-18

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