EP0655282A1 - Apparat zur Zerstäubung flüssiger Riechstoffe - Google Patents

Apparat zur Zerstäubung flüssiger Riechstoffe Download PDF

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Publication number
EP0655282A1
EP0655282A1 EP93203329A EP93203329A EP0655282A1 EP 0655282 A1 EP0655282 A1 EP 0655282A1 EP 93203329 A EP93203329 A EP 93203329A EP 93203329 A EP93203329 A EP 93203329A EP 0655282 A1 EP0655282 A1 EP 0655282A1
Authority
EP
European Patent Office
Prior art keywords
cartridge
tube
air
plug
section
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Withdrawn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
EP93203329A
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English (en)
French (fr)
Inventor
François Prieur
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.)
AROMANUANCE A RESPONSABILITE Ltee Ste
Original Assignee
Aromanuance A Responsabilite Ltee 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 Aromanuance A Responsabilite Ltee Ste filed Critical Aromanuance A Responsabilite Ltee Ste
Priority to EP93203329A priority Critical patent/EP0655282A1/de
Publication of EP0655282A1 publication Critical patent/EP0655282A1/de
Withdrawn legal-status Critical Current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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0012—Apparatus for achieving spraying before discharge from the apparatus

Definitions

  • the present invention relates to an apparatus for nebulizing odorous liquids intended to create a mist of fine droplets of odorous liquid suspended in the air.
  • Current nebulization devices conventionally include a pressurized air generation system, and a glass bulb integrating a Venturi system and adapted to be connected to a nozzle of the air generation system.
  • the present invention aims to overcome these drawbacks and proposes to provide a nebulization device in which the odoriferous liquids are enclosed in disposable cartridges designed, on the one hand, so that the cost price of these cartridges is compatible with their quality consumable object and, secondly, to provide a high concentration of odoriferous substances in the air surrounding the device.
  • Another object of the invention is to provide an apparatus which can be used either as a diffuser or in aromatherapy.
  • the air / liquid mixture is produced, according to the invention, in a cartridge constituting a consumable object independent of the technical air generation unit, which is connected to said technical unit by simple interlocking.
  • a cartridge constituting a consumable object independent of the technical air generation unit, which is connected to said technical unit by simple interlocking.
  • the design of the Venturi system makes it possible to obtain cartridges whose cost price is low and therefore compatible with the consumable nature of said cartridges.
  • the arrangement of the Venturi system inside the cartridge makes it possible to obtain a stable mist at the outlet of the cartridge; in fact, the air / liquid mixture is deviated from its trajectory before reaching the discharge opening, and only the drops are entrained whose fall speed is lower than the air entrainment speed upwards of the cartridge, the other drops, either falling into the bottom of the cartridge, or coming to break on the wall of this cartridge and thus transforming into finer particles.
  • the closure means are arranged so as to seal the upper face of the air inlet tube and form the air outlet nozzle .
  • the shutter means consist of a hinged shutter, by means of an integrated hinge, on the corresponding tube, and adapted to pivot between an open, molding position, or he releases the upper face of said tube, and a closed, operating position, where it closes said upper face, and in which said obturator and tube delimit the duct orthogonal to the axis of this tube.
  • the different parts constituting the Venturi system are thus produced simultaneously, therefore as indicated above, under the same conditions of humidity, temperature, etc., which guarantees perfect regularity of the successive parts as well as a perfect fit between the shutter and the corresponding tube.
  • each cartridge is made of a material such as in particular polyamide capable of allowing welding operations, said cartridge comprising a bottom wall provided with a peripheral recess of width combined with the thickness of the cartridge body.
  • each cartridge comprises an internal chimney integral with the cartridge body and opening at the level of the opening for discharging the nebulized liquid.
  • Such a chimney allows, without increasing the size of the cartridge, to form at the outlet of said cartridge, a circular volute of air from a flow of air delivered horizontally by the nozzle of the Venturi system.
  • this chimney fulfills an anti-spill function of the liquid contained in the cartridge, in case of inclination of this cartridge.
  • the cartridge bodies are shaped so as to define a seat of concave shape around the periphery of the discharge orifice, each of said cartridges being provided with a plug pierced with a longitudinal bore and having a portion of convex shape conjugated with the concave shape of the seat, adapted to allow said plug to pivot about an axis of rotation between an open position where the longitudinal bore is in the extension of the orifice d 'evacuation, and a closed position where this plug is folded against the cartridge body without communication between its longitudinal bore and the communication orifice.
  • each plug has an ear capable of making it possible to grip said plug in order either to rotate it, or to separate the cartridge from the compact case.
  • Such a plug makes it possible to grip the cartridge for its separation from the housing without having to provide the latter with specific gripping members.
  • the device shown in Figures 1a and 2 is intended for nebulizing odoriferous liquids or plant essences (pure or mixed) with the aim of diffusing them, either into the surrounding atmosphere, or towards a person who wants to inhale the fog thus created.
  • This device comprises, first of all, a compact hollow housing 1 integrating the air generation system, the electrical and pneumatic connections and the user controls.
  • This compact housing 1 the shape of which may be any, comprises a housing 2 of generally cylindrical shape opening out to the right of the front face 3 of said housing, and intended to house an interchangeable cartridge 4 containing the odoriferous liquid.
  • the pressurized air generation system integrated in this housing 1 is intended to provide air flow rates of between 0.5 and 0.8 liters per minute with an overpressure of between 0.1 and 1 bar.
  • This air generation system is mounted on a frame 5 consisting of a folded sheet mainly comprising a horizontal wing 5a and a vertical wing 5b, said sheet being carried by a vibration damping device 6, for example consisting of "Silentblocks".
  • the air generation system comprises, first of all, a low-voltage micro-motor 7 provided with a horizontally arranged motor shaft, secured to the vertical wing 5b of the frame 5.
  • the device can be associated with an integrated or external transformer (not shown), or integrate batteries.
  • the device in order to allow autonomous operation of the device, it can be provided with a transformer and batteries possibly associated with a timer intended to avoid their complete discharge, a switch allowing to choose the energy source. Batterie or mains. Instead of batteries it is also possible to equip the device with an accumulator.
  • the air generation system further comprises an eccentric 8 made of thermoplastic material forcibly mounted on the motor shaft of the micro-motor 7, and consisting of two adjoined cylindrical sections consisting respectively of a balancing mass 9 and a drive shaft 10.
  • the air generation system further comprises a transmission link 11 of a thermoplastic material, mounted on the eccentric 8 and connecting the latter to the membrane 12 of an air pump 13 secured to the horizontal wing 5a of the frame 5.
  • the rod 11 comprises, towards its upper end, a circular orifice 14 of diameter conjugate with that of the transmission shaft 10 of the eccentric 8 capable of allowing said rod to be mounted around said shaft.
  • this link 11 is pierced longitudinally, and over a portion of its length, with a tapped bore opening out at the right of its lower face, and making it possible to secure the latter to the membrane 12 of the air pump 13 by means of 'A screw 15 housed in a central hole which is provided with said membrane.
  • the diaphragm 12 of the air pump 13 has, for its part, a peripheral rim 16 of snap-fastening on the casing of said air pump. It also has, on its periphery, a refined annular band 17 making it possible to obtain the deformation of this membrane in line with this peripheral annular band 17 and thus to obtain a maximum compression volume.
  • the air generation system finally comprises a hose 18 for supplying air, for example embedded in the bottom wall of the housing 1, and an end bend 19, arranged so as to open into the housing 2 of the housing 1 and thus act as an interlocking structure for fitting a cartridge 4.
  • the nebulization apparatus comprises, secondly, cartridges 4 of a shape adapted to be housed in the housing 2 of the housing 1.
  • these cartridges consist of four elements, namely a bottom wall 20, a cartridge body 21, a plug 22 and a Venturi system 23. All these elements are made of polyamide 12 in because of the quality of resistance to essential oils of this material, and its ability to allow assembly by welding with ultrasound.
  • the bottom wall 20 has a circular shape with a diameter conjugate with that of the housing 2 of the housing 1, and has a peripheral recess 24.
  • This bottom wall 20 also includes an eccentric opening 25 provided with an interlocking structure 26 combined with the vertical branch of the elbow 19, and constituted by a frustoconical sleeve protruding above said wall and suitable for coming fit tightly on the elbow 19 thanks to the elasticity of said sleeve and elbow.
  • This sleeve 25 is further extended, in the upper part, of a tubular section 27 serving of interlocking structure for the establishment of the Venturi system 23 described below.
  • the sleeve 26 may include an annular groove housing an O-ring, the shape of said sleeve then remaining frustoconical or possibly being tubular.
  • This solution which requires providing each cartridge with an O-ring, however has the advantage of making it possible to produce the elbow 19 in a less resistant material without harming the life of said elbow and the sealing of the junction.
  • the bottom wall 20 finally comprises an imprint 28 of circular shape centered relative to the axis of said wall, and intended to allow maximum recovery of liquid.
  • the cartridge body 21 has a shape which fits into a cylinder of the same diameter as that of the bottom wall 20, and has a front face 29 curving in its upper part 29a so as to give said cartridge. , according to one of its planes of longitudinal symmetry, the shape of a half-warhead.
  • the peripheral wall of this cartridge body 21 has a thickness combined with the width of the peripheral recess 24 of the bottom wall 20 making it possible to fit said cartridge bodies and bottom wall before welding them.
  • the cartridge body 21 has, in addition, an opening 30 for evacuating the nebulized liquid formed in the curved part 29a of the front wall 29.
  • an opening 30 for evacuating the nebulized liquid formed in the curved part 29a of the front wall 29.
  • an internal chimney 31 whose length is substantially between 10% and 40% of the height of the cartridge body 21 directly above said opening.
  • the front wall 29 of the cartridge body 21 is shaped so as to constitute a seat 32 of concave shape able to receive a conjugate convex portion of the plug 22 and to allow the latter to pivot.
  • This plug 22 includes, for its part, aforementioned, a convex lower portion 22a arranged to be housed in the seat 32 and to allow the pivoting of said plug between two positions: a closed position where it is folded against the front wall 29, and an open position where it allows diffusion nebulized liquid.
  • Each plug 22 further comprises a tubular portion 22b in the extension of its convex portion, and is provided, towards its upper end, with an ear 35 capable of allowing it to be grasped in view, either to rotate it, or to withdraw the cartridge 4 from its housing 2.
  • each plug 22 has two lugs, such as 33, aligned, extending on either side of its convex portion, and the cartridge body 20 has two housings, such as 34, aligned , arranged on either side of the seat 32 in order to accommodate the lugs 33 and define therewith the axis of rotation of the plug.
  • each plug 22 is pierced with a longitudinal bore 36 having a circular section over its greatest length, and comprising a low end section of oblong section.
  • the Venturi system 23 of each cartridge is formed by a double duct consisting two tubes joined longitudinally: an air inlet tube 37 and a liquid inlet tube 38. These two tubes are offset longitudinally so that the air intake tube 37 has an upper section 39 projecting upwards from the liquid arrival tube 38, the latter having a lower section 40 projecting downwards from the tube d air intake.
  • the air intake tube 37 has a longitudinal bore of diameter conjugate with that of the tubular section 27 of the bottom wall 20, adapted to allow fitting said tube tightly onto said section.
  • This fitting is also carried out so that the longitudinal axis of the liquid supply tube 38 is perpendicular to the cavity 28, and therefore disposed coaxially with the axis of the cartridge, the lower end of said tube located a few millimeters from the bottom wall 20.
  • the upper section 39 of the air inlet tube 37 has a peripheral wall provided with a longitudinal slot 41 which is oriented relative to the liquid inlet tube 38 and formed opposite the latter, said slot having a length greater than that separating the upper face of said section and the upper face of the liquid inlet tube 38.
  • this slot 41 has a generally trapezoidal section which widens towards the outside of the peripheral wall of the upper section 39.
  • the Venturi system 23 comprises, finally, a shutter 42 articulated by means of an integrated hinge 43, on the upper section 39 of the air intake tube 37, and adapted to pivot between an open molding position where it releases the upper face of this section, and an operating position where it closes said section.
  • This shutter 42 consists of a skirt of external diameter conjugated with the internal diameter of the upper section 39, said skirt being externally provided with a tenon 44 of section adapted to be housed in the slot 41 of said upper section and of length less than that of said slot.
  • this shutter is designed to form, in the extension of the longitudinal bore of the air inlet tube 37, an air outlet nozzle 45 orthogonal to the axis of said bore, and having a longitudinal axis of symmetry substantially coplanar with the upper face of the liquid inlet tube 38.
  • the section of the air outlet nozzle 45 is of the order of 0.5 mm2 for a section of the bore of the air inlet tube 37 which is substantially equal to 5 mm2.
  • the liquid inlet tube 38 has a bore of the order of 2.5 mm2 having a narrowing in the upper part reducing this section to about 0.8 mm2.

Landscapes

  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
EP93203329A 1993-11-29 1993-11-29 Apparat zur Zerstäubung flüssiger Riechstoffe Withdrawn EP0655282A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93203329A EP0655282A1 (de) 1993-11-29 1993-11-29 Apparat zur Zerstäubung flüssiger Riechstoffe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93203329A EP0655282A1 (de) 1993-11-29 1993-11-29 Apparat zur Zerstäubung flüssiger Riechstoffe

Publications (1)

Publication Number Publication Date
EP0655282A1 true EP0655282A1 (de) 1995-05-31

Family

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Family Applications (1)

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EP93203329A Withdrawn EP0655282A1 (de) 1993-11-29 1993-11-29 Apparat zur Zerstäubung flüssiger Riechstoffe

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EP (1) EP0655282A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776947A1 (fr) 1998-04-03 1999-10-08 Parfum Indigo Nebuliseur perfectionne et systeme de controle de la nebulisation
FR2870128A1 (fr) * 2004-05-14 2005-11-18 Jean Pierre Vollot Dispositif destine a diffuser une senteur d'ambiance
US7104471B1 (en) 1999-09-24 2006-09-12 Quest International B.V. Dispensing devices

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB414860A (en) * 1933-05-12 1934-08-16 David Mcgregor Rogers Spraying device
GB525736A (en) * 1939-02-27 1940-09-03 Geoffrey Warner Parr Improvements in and relating to apparatus for the nebulisation of liquids
US3269665A (en) * 1964-11-02 1966-08-30 Ralph G Cheney Nebulizer
FR2358932A1 (fr) * 1976-07-23 1978-02-17 Paltz Jacques Diffuseur d'arome inhalateur
GB2227690A (en) * 1988-11-24 1990-08-08 Sentaure Limited "Atomiser"
USRE33717E (en) * 1986-11-07 1991-10-15 Liquid atomizing device and method
WO1992005823A1 (fr) * 1990-10-04 1992-04-16 Valois Inhalateur a poudre
FR2692175A1 (fr) * 1992-06-12 1993-12-17 B2Ps Sarl Appareil de nébulisation de liquides odoriférants.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB414860A (en) * 1933-05-12 1934-08-16 David Mcgregor Rogers Spraying device
GB525736A (en) * 1939-02-27 1940-09-03 Geoffrey Warner Parr Improvements in and relating to apparatus for the nebulisation of liquids
US3269665A (en) * 1964-11-02 1966-08-30 Ralph G Cheney Nebulizer
FR2358932A1 (fr) * 1976-07-23 1978-02-17 Paltz Jacques Diffuseur d'arome inhalateur
USRE33717E (en) * 1986-11-07 1991-10-15 Liquid atomizing device and method
GB2227690A (en) * 1988-11-24 1990-08-08 Sentaure Limited "Atomiser"
WO1992005823A1 (fr) * 1990-10-04 1992-04-16 Valois Inhalateur a poudre
FR2692175A1 (fr) * 1992-06-12 1993-12-17 B2Ps Sarl Appareil de nébulisation de liquides odoriférants.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2776947A1 (fr) 1998-04-03 1999-10-08 Parfum Indigo Nebuliseur perfectionne et systeme de controle de la nebulisation
WO1999051358A1 (fr) 1998-04-03 1999-10-14 Parfum Indigo Nebuliseur perfectionne et systeme de controle de la nebulisation
US7104471B1 (en) 1999-09-24 2006-09-12 Quest International B.V. Dispensing devices
FR2870128A1 (fr) * 2004-05-14 2005-11-18 Jean Pierre Vollot Dispositif destine a diffuser une senteur d'ambiance

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