EP0628356A1 - Piezoelektrischer Vernebler - Google Patents

Piezoelektrischer Vernebler Download PDF

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Publication number
EP0628356A1
EP0628356A1 EP94401086A EP94401086A EP0628356A1 EP 0628356 A1 EP0628356 A1 EP 0628356A1 EP 94401086 A EP94401086 A EP 94401086A EP 94401086 A EP94401086 A EP 94401086A EP 0628356 A1 EP0628356 A1 EP 0628356A1
Authority
EP
European Patent Office
Prior art keywords
flexible
reservoir
housing
vibrating
vibrating member
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
EP94401086A
Other languages
English (en)
French (fr)
Other versions
EP0628356B1 (de
Inventor
Jean-Louis Guéret
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.)
L'Oréal SA
Original Assignee
L'Oréal 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 L'Oréal SA filed Critical L'Oréal SA
Publication of EP0628356A1 publication Critical patent/EP0628356A1/de
Application granted granted Critical
Publication of EP0628356B1 publication Critical patent/EP0628356B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
    • B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0653—Details
    • B05B17/0676—Feeding means
    • B05B17/0684—Wicks or the like

Definitions

  • a nebulizing device consisting of a vibrating diffusing member, a high frequency generator, an electrical supply intended for the electrical supply of the generator, a reservoir for the fluid product, mounted in the device detachably and independently of the vibrating member, a means for supplying the vibrating member with product being provided, at least part of the feeding means such as a pump or a simple valve being carried through the tank;
  • a device is for example described in FR-A-2 459 052, with reference to its FIG.
  • a two-part reservoir comprises a liquid pump and a single-way distributor, or alternatively a simple valve associated with a reservoir containing a gas keeping the liquid under overpressure;
  • the upper part of the reservoir has an extension crossed by an outlet channel and, at the free end of the extension, a preparation member in the form of a concave cup partially covered by an upper baffle inclined towards the vibrating diffusing member, here l atomizing element in the form of a spraying plate, as described on page 4 lines 19 to 39 of the document; thus, the liquid product is projected onto the spraying plate by the supply means:
  • such an arrangement has the disadvantage that to be sure that the liquid product reaches the spraying plate, it is necessary to provide complicated deflector members such as the concave cup and its upper baffle not always easy to size and position, especially if you do not want liquid product to be sprayed also outside and around the spray plate, which not only stains the device but also leads to consumption unused liquid product, consumption all the more regrettable especially
  • the object of the present invention is to produce a nebulization device which does not have these drawbacks.
  • an apparatus for nebulizing a fluid product comprising a nebulizing device consisting of a vibrating diffusing member, a high frequency generator, an electrical supply intended for the electrical supply of the generator, a reservoir for the fluid product to be nebulized, mounted in the device in a removable manner and independently of the vibrating member, means for supplying product with the vibrating member being provided, at least part of the feeding means such as a pump or a simple valve being carried by the reservoir, is characterized by the fact that the pump or the simple valve having an operating rod, a transfer part carries, on the one hand, the operating rod and, on the other hand, a member flexible capable of conveying the fluid product on the vibrating member and placed in line with it, communication is provided between the volumes of the transfer part occupied by the operating rod and the 'flexible organ.
  • the vibrating organ consists of a metal or ceramic plate; the plate can be full or porous, or micro-pierced in the form of a grid.
  • the plate can be in the form of a spherical or conical bowl; it can also be flat, and arranged at any inclination in the nebulization apparatus.
  • the fluid product to be nebulized is generally a liquid, for example a perfuming or treating composition, aqueous or hydroalcoholic; it can also be a gel, the viscosity of which, different from that of water or alcohol, allows, in the case where the vibrating member is a grid-shaped plate, to provide more perforations in the grid larger than those necessary for a liquid product, which are not crossed by the gel in the absence of vibrations.
  • the gel has thixotropic characteristics, as soon as it is vibrated, it changes to a more fluid state and its nebulization is facilitated.
  • the device comprises a housing, a housing for mounting the reservoir in a removable manner, and a diffusion mouth.
  • the housing is limited by a wall having an opening through which the product supply means fluid of the vibrating member, an operating member being provided for the implementation of the supply means.
  • the supply means is entirely carried by the reservoir, and is therefore, like the latter, entirely removable; thanks to this arrangement, as the vibration of the diffusing vibrating member automatically ensures its cleaning, it is possible to use successively in the same device at least two different products: in the case of the treatment of the skin , for example, two products can be applied successively, even if these two products are made incompatible when put together for too long; in the case of a perfume, in particular, an evening perfume can be treated in the same apparatus as a morning perfume without modifying the note of the evening perfume by that of the morning.
  • the reservoir is slidably mounted in the housing.
  • the electrical supply is secured to the tank; the power supply is associated with an electrical contactor, one of the contacts of which is carried by the operating member; the housing has a receptacle for receiving a spare tank.
  • the flexible member is a brush.
  • the flexible member is a flexible elastic foam or sinter.
  • the flexible member is a flocked foam or a flocked flexible elastomer plastic.
  • the flexible member is in the form of a semi-flexible tulip with fringes extending the transfer part.
  • the reservoir is made of a rigid material, glass, ceramic, or synthetic material.
  • the reservoir is a flexible pocket.
  • the vibrating member and the transfer part are carried by the housing and the transfer part crosses the opening of the wall of the housing by bearing on said wall.
  • the vibrating member and the transfer part are carried by the operating member housed in a cavity bordered by the wall provided with the opening, the transfer part passing through said opening bearing on said wall.
  • an apparatus for nebulizing a liquid comprises a housing 103 consisting of two attached shells, an upper shell 103A, and a lower shell 103B.
  • the upper shell 103A defines a cylindrical cavity 105 opening at its upper part and having a wall 118; the two shells 103A, 103B also define, under the cavity 105, a housing 104.
  • An operating member 110 is constituted by a hollow push-button mounted to slide in the cavity 105 and having, on the one hand, a transverse bottom wall and, on the other hand, an opening 114 constituting a diffusion mouth for the product nebulized.
  • a grid 102 is arranged, inside the operating member 110, in the vicinity of its bottom wall which carries a transfer part 160; the perforations of the grid 102 have a micrometric size: they have for example a diameter between 1 and 200 microns; they can be obtained chemically or by laser machining, the grid consisting of a ceramic material; the grid 102 constitutes a finely calibrated screen allowing to receive a liquid product which it maintains by surface tension.
  • the transfer piece 160 passes through an opening made in the transverse wall of the operating member 110 and bears, by a flange 161, on said wall; the transfer part 160 comprises two bores 162, 163 defining two volumes separated by a veil but communicating by an orifice 164 formed in said veil.
  • the reservoir 106 consists of a flexible pocket, filled with airless liquid, and the supply means 107 comprises a pump without air intake; this allows use of the device in all positions, and, at the same time, better conservation of the liquid product, especially when this liquid is a perfume.
  • the operating rod 146 of the pump 107 takes its end in the bore 162, while the bore 163 receives a flexible member with a capillary structure or felt 109, such as an open cell foam for example, resting on the grid 102, also part of the supply means.
  • a flexible member with a capillary structure or felt 109 such as an open cell foam for example, resting on the grid 102, also part of the supply means.
  • a high frequency generator 120 is placed in the housing 104, as is the power supply 108 for this generator; a conductor 117 connects a pole of the power supply to a terminal of the generator; the other terminal of the generator 120 and the other pole of the supply 108 are respectively connected to contacts 112, 113 carried by the interior wall of the cavity 105, by conductors 115, 116; the operating member 110 carries at its periphery a conductive ring 111.
  • the bag 106 has been previously filled with a liquid to be nebulized; this liquid could be, for example, a perfume, an eau de toilette, a product for facial care, or the like.
  • Such a cloud, emitted at the outlet of the housing 103 by the diffusion mouth 114, has the advantage of not being wetting and is therefore advantageous for applications such as cosmetics or pharmaceuticals.
  • the nebulization apparatus according to the invention which evacuates the cloud of liquid particles having passed through the grid 102, allows the latter to remain clean after use and therefore to be able to replace a first reservoir containing a first liquid by a second reservoir containing a second liquid, different from the first, without the second liquid being polluted by the first; this is advantageous in particular in cosmetics when the liquids are perfumes.
  • These different tanks constitute, so to speak, refills for the device; it is possible, according to a variant not shown, to arrange the housing 103 so as to provide a receptacle receiving a spare tank equipped with a felt protected by a cap and containing the same liquid or a liquid different from that of the tank 106 ; with a capacity of 2 to 5 milliliters of liquid, such reservoirs lead to nebulization devices of very small size, easily transportable in a handbag, or a pocket of a garment.
  • Such an apparatus also has the advantage of being able to be used in any position.
  • the housing 203 comprises two shells 203A, 203B;
  • the supply means comprises a pump 107 having an operating rod 146 received in a bore 162 of a transfer part 160;
  • the transfer part 160 has another bore 163 receiving a felt, the bores 162 and 163 communicating through an orifice 164;
  • a flange 161 of the transfer part 160 allows it to bear on the wall 216 of the housing 204 provided in the shell 203A by passing through the circular opening 205.
  • the pump 107 is carried by a reservoir 206 whose bottom supports externally the power supply 208 for a generator 220 housed in the shell 203A.
  • a 210-shaped actuator flexible lever carries a contact 211 for closing the electrical supply circuit of the generator 220;
  • a grid 202 allows the nebulization of liquid through the diffusion mouth 214 formed in the lower part of the shell 203B.
  • Figures 3 to 6 show alternative embodiments of flexible members associated with the transfer part 160 carrying the operating rod 146 of the pump 107;
  • the flexible member 209 is a brush having bristles whose length and / or composition and / or dimensions of the section would adjust the flow of liquid;
  • the flexible member 309 is cotton or foam, polyurethane or polyether, with open cells; it can also be an elastomer or polyethylene sinter; according to Figure 5, the flexible member 409 is flocked, whether it is foam or sintered, flexible elastomeric plastic.
  • the flexible member 509 is more suitable for feeding the vibrating member 502 when the product is a gel; the flexible member 509 consists of a kind of semi-flexible tulip with fringes 510 extending the transfer part 160; it will have been noted that the vibrating member 502, in the form of a metal disc has larger perforations than those in FIGS. 3 to 5 which are more suitable for a liquid product.
  • FIG. 7 shows an example of an apparatus, the vibrating member 302 of which is an opaque, non-porous ceramic without holes; the housing 303 has a lateral diffusion mouth 314 placed, with respect to FIG. 7, above the vibrating member 302; the nebulized particles rebound on the vibrating member 302 and pass through the diffusion mouth 314.
  • the supply means comprises a simple valve 307.
  • FIG 8 shows a tank 306 equipped with the supply means of Figure 4; the reservoir 306, which may be made of glass, is protected by an envelope 139 on which a cover 138 for protecting the supply means is slammed, the assembly constituting a storable refill 300; according to the example shown in this figure, the power supply 308 is carried by the casing 139.

Landscapes

  • Special Spraying Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP94401086A 1993-06-02 1994-05-17 Piezoelektrischer Vernebler Expired - Lifetime EP0628356B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9306561A FR2705911B1 (fr) 1993-06-02 1993-06-02 Appareil de nébulisation piézoélectrique.
FR9306561 1993-06-02

Publications (2)

Publication Number Publication Date
EP0628356A1 true EP0628356A1 (de) 1994-12-14
EP0628356B1 EP0628356B1 (de) 1997-07-02

Family

ID=9447651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401086A Expired - Lifetime EP0628356B1 (de) 1993-06-02 1994-05-17 Piezoelektrischer Vernebler

Country Status (6)

Country Link
US (1) US5529055A (de)
EP (1) EP0628356B1 (de)
JP (1) JP3415675B2 (de)
DE (1) DE69404004T2 (de)
ES (1) ES2103550T3 (de)
FR (1) FR2705911B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2462833A4 (de) * 2010-07-26 2013-06-12 Yonwoo Co Ltd Tragbarer elektrisch betriebener flüssigkosmetikzerstäuber

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EP0628356B1 (de) 1997-07-02
DE69404004T2 (de) 1998-02-12
ES2103550T3 (es) 1997-09-16
JPH078863A (ja) 1995-01-13
FR2705911B1 (fr) 1995-08-11
US5529055A (en) 1996-06-25
DE69404004D1 (de) 1997-08-07
FR2705911A1 (fr) 1994-12-09
JP3415675B2 (ja) 2003-06-09

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