EP1149775A1 - Aerosolbehälter ausgestattet mit einem verbesserten Ventil - Google Patents

Aerosolbehälter ausgestattet mit einem verbesserten Ventil Download PDF

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Publication number
EP1149775A1
EP1149775A1 EP01400865A EP01400865A EP1149775A1 EP 1149775 A1 EP1149775 A1 EP 1149775A1 EP 01400865 A EP01400865 A EP 01400865A EP 01400865 A EP01400865 A EP 01400865A EP 1149775 A1 EP1149775 A1 EP 1149775A1
Authority
EP
European Patent Office
Prior art keywords
container
opening
valve
seal
closing element
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Withdrawn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
EP01400865A
Other languages
English (en)
French (fr)
Inventor
Philippe Bonningue
Gilles Baudin
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.)
LOreal SA
Original Assignee
LOreal SA
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 LOreal SA filed Critical LOreal SA
Publication of EP1149775A1 publication Critical patent/EP1149775A1/de
Withdrawn legal-status Critical Current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 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

Definitions

  • the present invention relates to a container for the pressure distribution of a product, especially liquid, as used in many fields such as cosmetic, agro-food, or dermato-pharmacology.
  • an aerosol container has a reservoir, formed of a container, most often made of metal or plastic, and with a free edge delimiting an opening in which a valve is mounted.
  • the valve is usually mounted on a cup, "set” or “dudgeonnée” on the free edge of the container.
  • the product generally in liquid form, as well as a gas propellant, mixed or not with the product to be dispensed.
  • the valve comprises a valve body, generally cylindrical, and having a inlet port and an outlet port. Inside the valve body is arranged a opening / closing member, which may be in the form of a rod, part of which is arranged inside the valve body, and another part of which emerges at outside the valve body. On the emerging part of the valve stem, is mounted an actuator in the form of a push button, which has at least one orifice for the outlet of the product.
  • the valve stem is crossed axially by a channel, opening, via at least one radial portion, inside the valve body.
  • the radial portion the channel opens opposite the inner annular edge of a seal, arranged around the outlet orifice of the valve body.
  • the organ opening / closing is forced in this closed position by means a spring disposed inside the valve body.
  • the user exerts pressure on a support surface of the push button, which pressure is sufficient to overcome the return force of the spring, and cause the valve stem to sink in until the portion (s) radials of the channel passing through the valve stem, no longer facing the seal sealing.
  • the product under pressure inside the valve body goes back into the valve stem, and is routed to the organ outlet actuation, via at least one passage connecting said outlet orifice to the rod valve on which the actuator is mounted.
  • the spring recalls the member opening / closing in closed position. The distribution of the product is then interrupted.
  • the spring complicates the assembly of such a valve.
  • the spring must be chosen from a material compatible with the composition to distribute.
  • the presence of the spring also requires having a body valve for holding the spring in engagement with the organ opening / closing.
  • a valve has also been proposed comprising a valve body made of material elastomeric.
  • the elasticity of the material forming the valve body is used to force the opening / closing member in the closed position.
  • One of disadvantages of such a design is due to the compatibility problem which can exist in some cases between the elastomer forming the valve body and the product to distribute.
  • US Patent 5,623,920 describes an aerosol container whose valve does not include spring itself.
  • the aerosol container is mounted axially movable inside an external enclosure, and the return closed position of the valve results from the return force of a spring placed between the bottom of container and said outer enclosure, the valve stem being in position axial fixed with respect to the mobile container.
  • US Patent 4,852,807 describes an aerosol device in which the valve does not has no actual valve body.
  • the valve stem is arranged in a structure of which a part forms a spring so as to recall the valve in closed position when the actuation command ceases.
  • Patent FR 1 379 202 describes a valve device in which an element elastic, fixed to the container, is provided to ensure the return of the valve in position closing when the actuation command ceases.
  • US Patent 3,990,613 also describes an aerosol device provided with a valve which includes an elastic element designed to ensure the return of the valve in closed position.
  • the closure of the valve results from the cooperation between a seal, integral with the valve, and the internal wall of the container.
  • US Patent 3,682,355 describes an aerosol device provided with a valve which under the action of the pressure inside the container ensures its return to the closing when the actuation command ceases.
  • the valve is made up a movable valve stem under the action of a lever.
  • An annular disc is provided inside the container to seal the container. The disc is kept pressed on a seat under the action of pressure inside the container and is lifted from its seat by the rod which comes to press on it when the lever is tilted.
  • the annular element is not integral with the valve stem.
  • a such a device comprises several independent parts which does not facilitate its mounting.
  • the fact that the annular element and the rod are not integral necessarily entails the presence of a play between these two parts which does not allow immediate opening of the valve during actuation control.
  • a container comprising a tank containing a product under pressure, said tank comprising a opening inside which a valve is mounted, said valve comprising a suitable opening / closing element, in response to an order actuation, to authorize the distribution under pressure of the product through at least at least one outlet, said opening / closing element, essentially under the action of pressure inside the tank acting directly on a organ placed inside the container, interrupting the distribution when it stops the actuation command, said opening / closing element being integral said organ, the closure of said valve resulting from cooperation between the opening / closing element and a seal integral with the tank.
  • the term "essentially” reflects the fact that due to the tight fitting and sliding of the opening / closing member with respect to the seal, typically in the form of an elastomeric seal, the seal may, when the actuation command ceases, have a participating action so marginal to the recall of the opening / closing element in the closed position. However, this action is negligible compared to that exerted by pressure prevailing inside the container, which participates more than 50% in the recall of the opening / closing element, preferably more than 75%, and preferably still over 90%.
  • the propellant may or may not be a liquefied gas. Assuming a liquefied gas or not, it is generally lighter than the product to be distributed, so that, for be used head up, it is necessary to associate a dip tube with the valve.
  • the valve may include a valve body of which an inlet is connected to the dip tube, a free end of the dip tube being located at the near the bottom of the container. In the case of use upside down, such dip tube and such a valve body are not required.
  • the propellant can be separated from the product by a piston, or by a flexible walls, defining an interior volume containing the product.
  • the member on which the pressure is exerted inside the tank is integral only with the opening / closing element.
  • the member is free of any coupling other than its attachment to the element opening / closing unlike the device described in patent FR 1 379 202, which again makes it possible to substantially simplify the mounting of a such valve.
  • the pressure inside the container necessary to ensure the valve closure is lower when the organ is free than when it is attached to the container. We can thus get rid of any elastic reminder to close the valve and essentially only use the pressure inside the container.
  • said opening / closing element comprises a rod valve, able to slide tightly inside a passage in the seal placed in said opening, said rod being traversed by an axial channel extending by at least one radial portion intended to be communication with the pressurized product inside the tank, response to said actuation command.
  • such an opening / closing member has inside the container a base formed continuously or discontinuously around the valve stem, and ensuring on the one hand the retention of the valve on the container, and possibly the sealing on closing.
  • the base is inscribed in a circle of section S 3 larger than the section S 2 of the valve stem. Due to the pressure gradient, the force exerted on a first face of said annular base, turned towards the bottom of the container is greater than the force exerted on a second face of said annular base, opposite to the first (in the assumption that the pressure inside the container is higher than atmospheric pressure). Thus, a first force differential participates in the return of the valve to the closed position.
  • the second force differential actually depends on the pressure gradient at inside the axial channel passing through the valve stem.
  • the average pressure inside the axial channel is a pressure whose value is somewhere between atmospheric pressure and the pressure inside the container.
  • the force differential is such that the opening / closing member is forced to return to its closed position.
  • the pressure is such that, throughout the duration life of the product, it is at least higher than atmospheric pressure, the required pressure difference being chosen in particular according to the speed required for closing, and the desired resistance to opening in order to minimize the risk of accidental distribution.
  • we will integrate in addition to excess pressure to compensate for friction between the valve stem and the gasket, as well as the weight of the valve stem and the push button, which are generally negligible.
  • the actuation command is such that it causes axial depression of the valve stem.
  • the actuation control is such that it causes the tilting rod to tip over valve.
  • the valve stem comprises means forming a stop, capable of limiting the sinking of the rod valve inside the container in response to said actuation command.
  • said (or said) radial portion (s) opens (s) opposite an inner annular edge of the seal, axial insertion of the valve stem in response to said command actuation, causing a displacement of said portion (s) radial (s) with respect to said inner annular edge of the seal, and placing in communication with said outlet orifice with the product under pressure.
  • said (or said) radial portion (s) opens (s) opposite, an annular zone delimited by a crown annular which, in the closed position of the opening / closing element, bears watertight on an annular surface of the seal, the axial recess or the tilting of the valve stem in response to said actuation command, causing a displacement of said annular ring relative to said surface of the seal, and the communication of said outlet orifice with the product under pressure.
  • said actuation control is exerted via a member actuation in the form of a push button, mounted on said element opening / closing, and in which is (are) (s) said (said) orifice (s) Release.
  • Said outlet orifice can be formed in a nozzle, in particular at vortex channels.
  • At least the surface of an edge delimiting said orifice of the joint sealing is covered with a coating, in particular of silicone or teflon, of so as to favor the sliding of the emerging rod in said orifice.
  • the container according to the invention can be used for packaging and distribution of a cosmetic product, in particular a hair product (hairspray styling, spray), care, makeup or personal hygiene.
  • a cosmetic product in particular a hair product (hairspray styling, spray), care, makeup or personal hygiene.
  • the aerosol container 1 illustrated in FIG. 1 comprises a cylindrical container 2, of axis X, made in particular of aluminum or tinplate.
  • One end of container 2 is closed by a bottom 3.
  • the initial pressure inside of the container is of the order of a few bars.
  • the end opposite the bottom 3 has a rolled edge 4 defining an opening 5.
  • On the rolled edge 4 of the container is set with a cup 6 carrying a valve 7. Inside the cup 6, an annular seal 8 is arranged, the peripheral edge of which is held between the rolled edge 4 and the valve holder cup 6, thus ensuring the watertight mounting of the cup 6 on the container 2.
  • the opening / closing member 11 comprises a rod valve 12 sliding in leaktight manner in passage 9 of seal 8, and emerging outside of the cup 6 via an orifice placed opposite the passage 9 passing through the seal 8.
  • valve stem 12 On its part located outside the container 2, the valve stem 12 has a portion 25, of section larger than the section of passage 9 passing through the joint 8, so as to prevent, before the pressurization of the container, and before the mounting of the push button which will be discussed later, that the organ does not fall into the container 2.
  • the valve stem 12 is crossed by an axial channel 13 ending in the vicinity of the lower end of the valve stem 12, by a channel 14 radially passing through the stem 12, and emerging at two diametrically opposite points of the stem 12.
  • the valve stem ends in a base 15, consisting of a transverse wall of section S 3 greater than the section S 2 of the valve stem 12.
  • the base 15 forms a peripheral crown 16 of which a free edge is capable, under the effect of the pressure prevailing inside the container 2, of being applied in a sealed manner on a corresponding face 17 of the seal 8.
  • An opening / closing member 11 is shown in the perspective view of FIG. 3.
  • the radial channel 14 opens into a space annular delimited by the base 15 of the valve stem 12, the annular crown 16, and seal 8.
  • a push button On its end opposite the base 15, a push button is mounted by force 20, crossed by a passage 21 leading to a nozzle 22 in which is formed an outlet orifice 23.
  • the push button defines a bearing surface 24 intended to allow the user to actuate the valve 7, in order to distribute the product contained in the container.
  • the push button 20, as well as the organ opening / closing 11 of valve 7 can be obtained by molding a thermoplastic material such as polypropylene or polyethylene.
  • the above embodiment is adapted both to an operation of the valve by pushing in and lateral tilting.
  • the closure member 11 shown in FIG. 4 differs from that discussed with reference to the previous embodiment in that the base 15 consists of a plurality of legs 30, 31, 32 oriented radially, and evenly spaced apart. around the valve stem 12, near its lower end.
  • the radial channel 14 is at such a distance from the lower end of the valve stem 12 that, when the valve is in the closed position, the radial channel 14 opens facing the inner edge 10 of the annular seal 8.
  • the radial channel is maintained opposite the inner edge 10 of the seal 8 due to the pressure prevailing inside the container, and acting both on the cross section S 2 of the rod valve 12, and on the total section of the legs 30, 31, 32.
  • the opening of the valve can only be done by pressing.

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)
EP01400865A 2000-04-28 2001-04-04 Aerosolbehälter ausgestattet mit einem verbesserten Ventil Withdrawn EP1149775A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0005519A FR2808258B1 (fr) 2000-04-28 2000-04-28 Recipient aerosol equipe d'une valve amelioree
FR0005519 2000-04-28

Publications (1)

Publication Number Publication Date
EP1149775A1 true EP1149775A1 (de) 2001-10-31

Family

ID=8849751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01400865A Withdrawn EP1149775A1 (de) 2000-04-28 2001-04-04 Aerosolbehälter ausgestattet mit einem verbesserten Ventil

Country Status (3)

Country Link
US (1) US20020020721A1 (de)
EP (1) EP1149775A1 (de)
FR (1) FR2808258B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7188622B2 (en) * 2003-06-19 2007-03-13 3M Innovative Properties Company Filtering face mask that has a resilient seal surface in its exhalation valve
GB0315801D0 (en) * 2003-07-07 2003-08-13 3M Innovative Properties Co Multi-component valve stems
US20060131346A1 (en) * 2003-07-07 2006-06-22 Purkins Graham R Two component molded valve stems
FR2885889B1 (fr) * 2005-05-20 2007-10-19 Valois Sas Valve de distribution de produit fluide
US7698878B2 (en) * 2005-10-17 2010-04-20 Dispensing Patents International, Llc Aerosol container with integral mounting cup and anti-clog valve
US8960503B2 (en) * 2006-10-19 2015-02-24 Atef Gabr Soliman Plastic aerosol container
CN102553097A (zh) 2007-11-27 2012-07-11 3M创新有限公司 具有单向阀的面罩
GB2558522A (en) * 2016-06-20 2018-07-18 Kind Consumer Ltd A pressurised Container

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763406A (en) * 1952-06-05 1956-09-18 James H Countryman Valve construction for dispensing containers
FR1379202A (fr) * 1962-12-06 1964-11-20 Dispositif de soupape pour la distribution de liquides à partir de récipients souspression
US3682355A (en) * 1970-01-06 1972-08-08 Johnson & Son Inc S C Pressure actuated valve
US3990613A (en) * 1975-06-30 1976-11-09 Chill-Can International, Ltd. Aerosol container closure
US5975378A (en) * 1998-06-09 1999-11-02 Precision Valve Corporation Aerosol powder valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT978124B (it) * 1972-01-13 1974-09-20 Ronson Corp Perfezionamenti relativi a valvo le distributrici di fluidi

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763406A (en) * 1952-06-05 1956-09-18 James H Countryman Valve construction for dispensing containers
FR1379202A (fr) * 1962-12-06 1964-11-20 Dispositif de soupape pour la distribution de liquides à partir de récipients souspression
US3682355A (en) * 1970-01-06 1972-08-08 Johnson & Son Inc S C Pressure actuated valve
US3990613A (en) * 1975-06-30 1976-11-09 Chill-Can International, Ltd. Aerosol container closure
US5975378A (en) * 1998-06-09 1999-11-02 Precision Valve Corporation Aerosol powder valve

Also Published As

Publication number Publication date
FR2808258B1 (fr) 2002-09-13
FR2808258A1 (fr) 2001-11-02
US20020020721A1 (en) 2002-02-21

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