EP0125970B1 - Valve doseuse - Google Patents

Valve doseuse Download PDF

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Publication number
EP0125970B1
EP0125970B1 EP84400879A EP84400879A EP0125970B1 EP 0125970 B1 EP0125970 B1 EP 0125970B1 EP 84400879 A EP84400879 A EP 84400879A EP 84400879 A EP84400879 A EP 84400879A EP 0125970 B1 EP0125970 B1 EP 0125970B1
Authority
EP
European Patent Office
Prior art keywords
piston
valve
valve body
container
annular groove
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.)
Expired
Application number
EP84400879A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0125970A1 (fr
Inventor
Catherine Suck
Pierre Bret
Jacques Pozzi
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.)
Promotion Recherche et Innovation Technologique Ste
Original Assignee
Promotion Recherche et Innovation Technologique Ste
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 Promotion Recherche et Innovation Technologique Ste filed Critical Promotion Recherche et Innovation Technologique Ste
Priority to AT84400879T priority Critical patent/ATE28737T1/de
Publication of EP0125970A1 publication Critical patent/EP0125970A1/fr
Application granted granted Critical
Publication of EP0125970B1 publication Critical patent/EP0125970B1/fr
Expired 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
    • B65D83/546—Metering valves; Metering devices the metering occurring at least partially in the actuating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/86702—With internal flow passage

Definitions

  • the invention relates to a metering valve, that is to say a metering device with automatic closure for delivering in the form of aerosols liquids contained under pressure in containers according to the preamble of claim 1 (known from the patent FR- A-2046021
  • This valve has several drawbacks and in particular the fact that it is the cap which seals between the piston and the assembly of the cup and of the valve body.
  • the interior volume of the valve head is full of air, and when a liquid is taken from the container by pressure on the valve head, the pressurized liquid fills the valve head by compressing the air there. After a few samples, the internal pressure of the container tends to decrease and consequently, the dose withdrawn also tends to decrease.
  • valve head can be subjected to accidental pressure and ensure untimely spraying without the possibility of avoiding this drawback, if it is placed in a suitcase or a bag for example.
  • Document FR-A-2046021 describes a metering device with a metering head with elastic membrane, a sheath-nozzle, a valve body in two parts, one inside and the other outside the container, and a sliding piston having a blind central bore and a radial bore opening into this bore.
  • the piston also has two other radial bores and it is essential that the upper bore is rigorously opposite the ejection orifice of the sheath-nozzle so that the aerosol can be expelled.
  • Document FR-A-1400129 describes a receptacle in the form of a coffee maker, the spout of which serves as a stop to prevent the receptacle from descending.
  • the receptacle can descend and open a reservoir by pressing on a valve which delivers a liquid. This document does not provide for automatic dosing of the liquid to be dispensed.
  • One of the aims of the present invention is to provide a metering valve, the construction of which is simple, the reduced size, the easy implementation and the low cost price, that is to say a metering valve, the design avoids the disadvantages of known metering valves.
  • Another object of the invention is to provide a valve whose dead volumes are reduced so as to increase the precision of the metering.
  • the subject of the invention is a metering valve for delivering a pressurized liquid contained in a container, of the type comprising a metering head with elastic membrane, a sheath-nozzle, a valve body and a piston sliding in the valve body and having a blind central bore and a radial bore opening into this central bore, in which, on the one hand, the valve body is made up of two parts, a lower part located inside the container, and an upper part applied to the lower part inside the container, but extending mainly out of the container, on the other hand said upper part of the valve body has a bore in which the piston slides, limited upwards by a shoulder, characterized in that the piston has an outer annular groove in its central part framed by two O-rings, and said radial bore of the piston opens into said annular groove.
  • the lower part 2 has a central well 6 limited by a lower shoulder 7, and a lower axial channel 8 which can be connected by fitting to a dip tube 41 (FIG. 3) intended to ensure the rise in the valve of the pressurized liquid.
  • the upper part 3 has a central bore 9 limited upwards by a shoulder 10. At its lower part, this bore 9 widens at 11 to join a wider lower bore 12 in direct correspondence with the central well 6 of the part lower. About half of its height, the upper part 3 has an outer annular groove 13 provided with at least one radial passage 14, and preferably with two diametrically opposite radial passages. This groove 13 is bordered below by a circular rib 15.
  • the upper part 3 of the valve body 1 has an annular groove 16 intended to receive an inner circular rib 17 of the sheath-nozzle 18 coming to cover the valve body 1.
  • This sheath-nozzle has a ring inner 19 substantially cylindrical, carrying the rib 17 at its upper part. It is applied against the upper part 3 of the valve body on the one hand to its upper part by a first cylindrical zone 20, on the other hand in the vicinity of its middle and against the circular rib 15 of the valve body by a second cylindrical zone 21 of larger diameter than the first zone 20.
  • the sheath-nozzle 18 further carries a cylindrical outer ring 22, coaxial with the inner ring 19, and provided at its upper edge with an outer rib 23 intended to retain the skirt 25 of the valve head 24 ( Figure 2).
  • the sheath-end piece comprises a cylindrical skirt 26 covering the middle part of the valve body, of diameter much larger than the rings 19 and 22, and coming to bear by its lower free edge on the bottle or on the flange 5 for example .
  • the sheath-end piece has a radial end piece 27, at the level of the annular groove 13 of the valve body when the sheath-end piece is in place, and which passes through the rings 19 and 22.
  • This end piece is a tube intended to ensure evacuation outward of the metered liquid. It is likely to receive an extension or a diffuser, not shown.
  • This tip is surmounted by a boss 28 of cylindrical shape, projecting above the tip and parallel to it. The tip has for example a length of about 1 cm, and the boss of a few millimeters. According to certain embodiments, the boss 28 can be constituted by the end piece 27 itself, when the size of the latter is sufficient.
  • the sheath-tip carries a safety tab 29, intended to prevent any operation of the valve before it is put into service, and capable of being removed by breaking its points of articulation on the sheath-tip 18.
  • the dosing head 24 which is placed above the sheath-nozzle 18 essentially consists of a cavity 42 whose volume corresponds to the dose of liquid desired. This cavity is entirely housed in a rigid envelope 43 rounded at the top of the head. This rounded envelope serves as a fulcrum for the operator who wants to operate the valve.
  • an elastic membrane 45 normally at rest on the floor 46 of the dosing head, and capable of being applied under the rigid casing 43 when the dosing head is filled with liquid under pressure.
  • a cylindrical skirt 25 having a substantially semi-circular notch 30.
  • the lower edge of the skirt 25 has inward a circular rib 44. This rib is intended to retain the dosing head in place on the sheath-tip.
  • the dosing head is put in place by elastic deformation of the skirt 25, the inner rib of the skirt 25 crossing the outer rib 23 of the ring 22, and remaining in abutment under this rib 23.
  • the notch 30 surrounds the boss 28 and, at the limit, comes to rest on it, thus limiting the downward movement of the valve head.
  • the valve head 24 has any orientation relative to the sheath-nozzle.
  • the position of the notch 30 relative to the boss 28 is indifferent because the safety tab 29 prevents the head from lowering.
  • the notch 30 is located just above the tongue 29, the latter cannot prevent the descent of the head.
  • the lower edge of the skirt 25 abuts on the boss 28 which prohibits the descent of the valve head.
  • the notch 30 placed just above the boss 28 allows the valve to operate by lowering the head 24. If one wishes to avoid the accidental operation of the valve, during transport for example, it suffices to turn the dosing head so that the edge of the skirt 25 is above the boss 28.
  • the dosing head 24 has in its axis a channel 47 (Figure 3), intended to cooperate with the piston 31 of the valve.
  • This channel is a tube opening under the membrane 45 and communicating the cavity contained in the metering head 24 with the axial bore of the piston 31 of the valve.
  • the axial bore 32 of the piston has at its upper part a flared part 33 (FIG. 1), opening upwards, and intended to receive the axial channel 47 of the metering head 24, the lower end of which is thus guided during assembly.
  • the axial bore 32 is blind.
  • the piston 31 is capable of moving in a piston chamber 34 formed by the internal volume of the valve body 1, that is to say the well 6 for the lower part 2 of the valve body, and for the upper part 3 the volume delimited by the bores 9 and 12 and the conical widening 11.
  • the piston 31 has two outer annular grooves intended to receive the O-rings 35 and 36, which define between them a central zone separating an upper zone and a lower zone .
  • the lower zone is without drilling and tapers downwards to allow the possible mounting of a spring.
  • the upper zone is cylindrical and extends to an upper edge 37 capable of abutting under the shoulder 10. It has no radial holes.
  • the central zone is also cylindrical like the upper zone.
  • the piston 31 has an outer annular groove 38. At least one radial bore 39, and preferably two, make the annular groove 38 communicate with the blind axial bore 32.
  • the O-rings 35 and 36 seal in the bore 9.
  • the seal 36 crosses the conical widening 11 and no longer provides sealing, which allows the liquid rising in the well 6 to bypass the seal 36 from the outside, to enter the annular groove 38, and through the holes 39, in the blind bore 32, from there to go up in the axial channel of the head and filling the metering cavity, by pushing the elastic member 45 against the rigid envelope 43.
  • the pressure prevailing in the bottle and the well 6 ensures the ascent of the piston 31 which pushes the dosing head 24 upwards.
  • the seal 36 again slides into the bore 9 by sealingly isolating the annular groove 38.
  • this groove 38 comes opposite the annular groove 13 of the valve body, the liquid contained in the dosing head 24 can escape under the action of the elastic membrane 45. Due to the very presence of these two annular grooves 38 and 13, the liquid under pressure is conveyed to the nozzle 27 and from there to the outside, without there being any relative orientation to respect between the valve body 1, the piston 31, the sheath-nozzle 18 and the head 24.
  • piston 31 and the dosing head 24 are secured by the axial channel 47 of the metering head, the assembly being able to pivot relative to the sheath-nozzle 18 and to the valve body 1. In the position corresponding to the expulsion of the liquid under pressure, the piston 31 is supported by its upper edge 37 under the shoulder 10 which limits its upward stroke.
  • the sheath 18 does not apply, as in the case of FIG. 1, by its lower free edge on the bottle or on the flange 5, for example.
  • the upper part 3 of the valve body has a projecting rib 48 on which is applied the inner cylindrical part 49 of the sheath-tip.
  • the valve body which supports all the other elements. Since there are no other support points for these elements, the solidarity of the different elements between them is not thwarted and this results in better cohesion between them.
  • the metering valve according to the invention has many advantages compared to previous metering valves. First of all there is no orientation to respect for the piston, the valve body, the sheath-nozzle and the dosing head at the time of assembly. Therefore, the assembly of the valve can be automated.
  • the simplification of the geometry of the piston makes it possible to reduce the dimensions of the piston and of the valve, which results in a reduction in material cost.
  • the arrangement of a boss above the end piece and a notch in the skirt of the valve head makes it possible to reduce the height of the assembly and to provide a safety position for the dosing head. by simple rotation. Because the piston 31 has no specific orientation, the dosing head 24 can rotate relative to the sheath-tip 18, and it is possible to secure the snap-fastening of the dosing head to the sheath-tip.
  • the upper part 3 of the valve body ensures effective guidance of the piston 31 over a large stroke. Therefore, the movement of the dosing head 24 is also well guided. As the sealing is ensured by the O-rings which move in the valve body, there is practically no risk of leakage.

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)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Fluid-Driven Valves (AREA)
  • Nozzles (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Closures For Containers (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Contacts (AREA)
  • Multiple-Way Valves (AREA)
  • Compressor (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Water Treatment By Sorption (AREA)
EP84400879A 1983-05-05 1984-05-02 Valve doseuse Expired EP0125970B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84400879T ATE28737T1 (de) 1983-05-05 1984-05-02 Dosierventil.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8307508 1983-05-05
FR8307508A FR2545573B1 (fr) 1983-05-05 1983-05-05 Valve doseuse

Publications (2)

Publication Number Publication Date
EP0125970A1 EP0125970A1 (fr) 1984-11-21
EP0125970B1 true EP0125970B1 (fr) 1987-08-05

Family

ID=9288620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400879A Expired EP0125970B1 (fr) 1983-05-05 1984-05-02 Valve doseuse

Country Status (11)

Country Link
US (1) US4809888A (enrdf_load_stackoverflow)
EP (1) EP0125970B1 (enrdf_load_stackoverflow)
JP (1) JPS6041567A (enrdf_load_stackoverflow)
AT (1) ATE28737T1 (enrdf_load_stackoverflow)
AU (1) AU569075B2 (enrdf_load_stackoverflow)
BR (1) BR8402106A (enrdf_load_stackoverflow)
CA (1) CA1236055A (enrdf_load_stackoverflow)
DE (1) DE3465176D1 (enrdf_load_stackoverflow)
ES (1) ES279142Y (enrdf_load_stackoverflow)
FR (1) FR2545573B1 (enrdf_load_stackoverflow)
MX (1) MX158997A (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707186A1 (de) * 1987-03-06 1988-09-15 Heinrich David Vorrichtung zum messen oder dosieren von stroemenden medien
FR2612889B1 (fr) * 1987-03-25 1989-07-21 Promotion Rech Innovation Tec Tete de dosage pour recipients sous pression a valve continue
US5829641A (en) * 1996-10-15 1998-11-03 The Procter & Gamble Company Dispensing pump lock
US6398133B1 (en) 1999-12-22 2002-06-04 Emsar, Inc. Dispensing head for a squeeze dispenser
JP4523690B2 (ja) * 2000-02-21 2010-08-11 東洋エアゾール工業株式会社 エアゾール容器用小分分配装置
US6302297B1 (en) * 2000-09-06 2001-10-16 Illinois Tool Works Inc. External metering valve for a fuel cell
FR2831841B1 (fr) * 2001-11-07 2004-09-24 Valois Sa Dispositif de distribution de produit fluide
JP6435182B2 (ja) * 2013-12-13 2018-12-05 株式会社丸一 エアゾール容器の定量噴射機構
US9758296B2 (en) * 2015-05-28 2017-09-12 Draco Sound, Corp. System and method for dispensing aerosol foam
US9783360B2 (en) * 2015-05-28 2017-10-10 Draco Sound, Corp. System and method for dispensing pressurized fluid
CN106730180A (zh) * 2016-12-15 2017-05-31 上海华瑞气雾剂有限公司 倒置定量泡沫气雾剂阀门
EP3536634B1 (de) * 2018-03-09 2021-04-28 Aptar Radolfzell GmbH Spender zum austrag von flüssigkeiten und betriebsverfahren hierzu
PL239416B1 (pl) * 2019-11-20 2021-11-29 Marcin Kadula Układ aerozolowego zaworu dozującego oraz pojemnik zawierający układ aerozolowego zaworu dozującego

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706660A (en) * 1952-10-23 1955-04-19 Carl W Johnson Dispenser for pressurized fluid containers
GB878409A (en) * 1957-03-26 1961-09-27 United Drug And Chemical Compa Improvements in or relating to dispensing devices
GB975287A (en) * 1961-06-08 1964-11-11 Seary Ltd Improvements in metering valve assemblies for use with pressurized containers
US3173585A (en) * 1962-10-29 1965-03-16 Kahn Samuel Measuring dispensing valve for aerosol container
FR1400129A (fr) * 1964-07-02 1965-05-21 Dispositif pour distribuer un aérosol hors d'un récipient
FR1458099A (fr) * 1965-01-08 1966-03-04 Perfectionnements aux dispositifs doseurs
US3325054A (en) * 1965-10-23 1967-06-13 Seaquist Valve Co Aerosol valve actuator with means to prevent its accidental actuation
US3545479A (en) * 1967-06-12 1970-12-08 Loenco Inc Flow diverting device for gas chromatographs
FR1568205A (enrdf_load_stackoverflow) * 1968-03-14 1969-05-23
FR2046021A5 (enrdf_load_stackoverflow) * 1969-04-04 1971-03-05 Bret Pierre
JPS5110685A (ja) * 1974-07-15 1976-01-28 Matsushita Electric Works Ltd Soketsuto

Also Published As

Publication number Publication date
AU569075B2 (en) 1988-01-21
FR2545573B1 (fr) 1986-06-20
MX158997A (es) 1989-04-05
AU2759384A (en) 1984-11-08
ES279142Y (es) 1985-06-16
ES279142U (es) 1985-01-01
DE3465176D1 (en) 1987-09-10
FR2545573A1 (fr) 1984-11-09
US4809888A (en) 1989-03-07
CA1236055A (fr) 1988-05-03
BR8402106A (pt) 1984-12-11
JPS6041567A (ja) 1985-03-05
EP0125970A1 (fr) 1984-11-21
JPH0529510B2 (enrdf_load_stackoverflow) 1993-04-30
ATE28737T1 (de) 1987-08-15

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