WO2012127512A1 - Ultrasonic atomizer for liquid substances and solutions - Google Patents

Ultrasonic atomizer for liquid substances and solutions Download PDF

Info

Publication number
WO2012127512A1
WO2012127512A1 PCT/IT2011/000091 IT2011000091W WO2012127512A1 WO 2012127512 A1 WO2012127512 A1 WO 2012127512A1 IT 2011000091 W IT2011000091 W IT 2011000091W WO 2012127512 A1 WO2012127512 A1 WO 2012127512A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
solutions
substances
nebulized
ultrasonic nebulizer
Prior art date
Application number
PCT/IT2011/000091
Other languages
French (fr)
Inventor
Giuseppe Cascone
Original Assignee
Giuseppe Cascone
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 Giuseppe Cascone filed Critical Giuseppe Cascone
Priority to PCT/IT2011/000091 priority Critical patent/WO2012127512A1/en
Publication of WO2012127512A1 publication Critical patent/WO2012127512A1/en

Links

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
    • B05B17/0615—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 at the free surface of the liquid or other fluent material in a container and subjected to the vibrations
    • 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
    • B05B17/0661—Transducer materials
    • 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
    • B05B17/0669—Excitation frequencies

Definitions

  • the present invention regards an innovative device capable of nebulising (or atomizing) liquid substances or solutions of appropriate density, exploiting the principle of ultrasound waves generated by a ceramic piezoelectric transducer driven by an electronic circuit.
  • Ultrasonic nebulizers or atomizers function on the principle of a vibration that breaks- a liquid up into minute droplets.
  • the vibration is generated by the pas- sage of a high-frequency electric current (1-2 MHz) through a ceramic disk (piezoelectric transducer) .
  • Ultrasonic nebulizers are quieter than pneumatic ones formed by a compressor and by an ampoule and possess a greater rapidity of nebulization that reduces the dura- tion of the nebulizer sessions, but are more likely to get broken and . can alter some active principles contained in the nebulized liquid. Furthermore, the cleaning of ultrasonic nebulizers . is difficult to carry out.
  • the nebulization chamber in which the liquid undergoes transformation from the liquid state into aerosol has the shape of a truncated cone in which the walls have an inclination such as to enable an optimal exploitation of the acoustic waves generated by the piezoelectric transducer that is set in a position corresponding to its major base;
  • said nebulization chamber communicates at the top through its minor base with the funnel-shaped base of an expansion chamber, where the nebulized particles are transferred thanks to the existing pressure differential ;
  • the nebulized product present in the expansion chamber is forced into the outlet duct thanks to an electric fan, which introduces air into the . expansion chamber from outside;
  • the section of the inlet mouth of the funnel of the expansion chamber is smaller than that of the outlet mouth of the nebulization chamber, giving rise to an annular drip catcher, which has the task of collecting the recondensed particles of aerosol and causing them to drop back into the underlying nebulization chamber.
  • Figure ⁇ 1 is a schematic longitudinal section of an ultrasonic nebulizer for ' substances and solutions in the liquid state, according to the invention
  • Figure 2 is " a cross-sectional view according to the plane of trace. ⁇ - ⁇ of Figure 1, which shows the electrical and electronic elements necessary for governing and controlling the ultrasonic nebulizer;
  • Figure 3 shows the electronic circuit that regulates operation of the nebulizer
  • Figure 4 shows the outer container and the rotation that the internal device must perform for replacing the flask or reservoir containing the liquid to be nebulized
  • Figure 5 shows insertion of the flask of the liquid to be nebulized, which takes place at the end of a rotation of the internal device through approximately 130°.
  • the nebulizer forming the subject of the invention is substantially constituted by a parallelepipedal container 6, from inside which it is possible to extract, by rotation on a pin 7, .
  • a compartment 8 that encloses the components that perform the nebulization and is connectable via a supply tube 18 to the flask or reservoir 11 containing the liquid to be nebulized, as may be seen in Figure 5.
  • the compartment 8 contains: . a nebulization chamber 10, an expansion chamber 12, a piezoelectric transducer 14, a. fan 16, which introduces air into the expansion chamber 12, and all the electrical and electronic elements necessary for governing and controlling the ultrasonic nebulizer.
  • the nebulization chamber 10 has the shape of a truncated cone, where the piezoelectric transducer 14 is set in a position corresponding to its major base, set at the bottom, whilst the minor base, set at the top, is connected to the funnel-shaped bottom of the expansion chamber 12.
  • the outlet mouth of the funnel projects with a drip catcher 19 within the underlying nebulization chamber 10, enabling any possible non-nebulized drops of liquid to be collected and to drop into the well where the liquid to be nebulized is located.
  • the modalities of operation start with insertion of the flask 11 of the liquid to be nebulized (Figure 1). Said insertion can be made only after carrying out rotation of the compartment 8 through approximately 130°, as represented by the . arrow designated by 17 in Figure 5. Said rotation has the purpose of causing any possible residual liquid present in the nebulizer well 10 and in the connection duct 18 to flow into the flask 11: emptying of the nebulizer well 10 becomes necessary whenever it is required to replace the type of liquid to be nebulized.
  • the flask 11 is fixed in a fluid- tight way to the connection tube 18, screwing the neck 13 thereof into the purposely provided seat 13a.
  • the compartment 8 of the device 10 is 'brought back into the vertical position ( Figure 2).
  • the liquid contained in the recharging flask 11 flows away through the duct 18 ( Figure 2) until it reaches the nebulizer well 10, provided on the base of which is the piezoelectric transducer 14 for generating ultrasound waves. Filling of the well 10 is never complete so as to leave a space free between the free surface of the liquid to be nebulized and the drip catcher 19.
  • the particular truncated-cone shape of the nebulization chamber 10 enables optimal exploitation of the pressure of the sound radiation generated the piezoelectric transducer 14 itself, normally a ceramic piezoelectric disk.
  • the high-frequency vibration of the piezoelectric transducer produces, by the Rayleigh effect, acoustic energy, which, traversing the liquid to be nebulized, generates an aerosol.
  • the pressure differential that is produced between the nebulization chamber 10 and the expansion chamber 12 causes the nebulized particles to transfer into the overlying expansion chamber.
  • the nebulized product present in the expansion chamber is forced into the outlet duct .20 ( Figure 1) by an electric fan 16, which introduces air from outside into the expansion chamber 12, according to the arrows 27 of Figure 1.
  • the operation of the device is managed by an electronic circuit 22 ( Figure 3) , which, in addition to driving the piezoelectric transducer 14, governs the fan 16 and the . warning lights 25 and 26, which indicate., respectively, the "operating" state and the "reservoir empty” state.
  • the electronic circuit 22 receives the commands ⁇ via an electrical switch 23 ( Figure 3) , with which the cycles of turning-on of the apparatus are set, whilst a potentiometer 24 establishes the duration of operation.
  • the control circuit 22 turns off the nebulizing device automatically at the moment, in which it receives from the level probe 28 ( Figures 1, 3) the reservoir- empty signal.
  • the volume of liquid that fills the connection tube 18 and the nebulizer well 10 is much smaller than the volume of the recharging flask 11, which is screwed in a fluid-tight way to the connection tube 18.

Landscapes

  • Special Spraying Apparatus (AREA)

Abstract

The ultrasonic nebulizer for substances and solutions in the liquid state is a device capable of converting a liquid from the liquid state to the gaseous state. It is connected to a flask containing the liquid to be nebulized. Said liquid, through a' duct, reaches a nebulization chamber fixed to the base of which a piezoelectric transducer. The liquid traversed by the high-frequency sound waves produces minute droplets in suspension in the air, forming an air-substance mixture, which is forced outwards by the ventilation produced by an electric fan. The nebulization chamber and the expansion chamber are sized so as to prevent exit of the liquid in the event of turning-over of the device. Operation of the apparatus is managed by an electronic circuit, which, in addition to driving the piezoelectric transducer, enables choice of the times and duration of the nebulization via external commands. The same apparatus can function with different substances and solutions; in the event of change of the type ' of liquid, it is necessary to empty the nebulizer well, and this operation takes place automatically at the moment when the flask is replaced.

Description

ULTRASONIC ATOMIZER FOR LIQUID SUBSTANCES AND SOLUTIONS
DESCRIPTION
The present invention regards an innovative device capable of nebulising (or atomizing) liquid substances or solutions of appropriate density, exploiting the principle of ultrasound waves generated by a ceramic piezoelectric transducer driven by an electronic circuit.
Ultrasonic nebulizers or atomizers function on the principle of a vibration that breaks- a liquid up into minute droplets. The vibration is generated by the pas- sage of a high-frequency electric current (1-2 MHz) through a ceramic disk (piezoelectric transducer) . Ultrasonic nebulizers are quieter than pneumatic ones formed by a compressor and by an ampoule and possess a greater rapidity of nebulization that reduces the dura- tion of the nebulizer sessions, but are more likely to get broken and . can alter some active principles contained in the nebulized liquid. Furthermore, the cleaning of ultrasonic nebulizers . is difficult to carry out.
The advantages of the invention in question, as compared to existing ultrasonic nebulizers, regard various aspects: high efficiency, ease of use, and presence of a device for preventing accidental exit of the liquid.
The above has been obtained according to the invention by providing a nebulizing or atomizing device having the following characteristics:
the nebulization chamber in which the liquid undergoes transformation from the liquid state into aerosol has the shape of a truncated cone in which the walls have an inclination such as to enable an optimal exploitation of the acoustic waves generated by the piezoelectric transducer that is set in a position corresponding to its major base;
said nebulization chamber communicates at the top through its minor base with the funnel-shaped base of an expansion chamber, where the nebulized particles are transferred thanks to the existing pressure differential ;
the nebulized product present in the expansion chamber is forced into the outlet duct thanks to an electric fan, which introduces air into the. expansion chamber from outside;
the section of the inlet mouth of the funnel of the expansion chamber is smaller than that of the outlet mouth of the nebulization chamber, giving rise to an annular drip catcher, which has the task of collecting the recondensed particles of aerosol and causing them to drop back into the underlying nebulization chamber.
The invention described herein, owing to its simplicity of use, its high efficiency, and the particular conformation of the nebulization chamber and of the supply duct, constitutes a valid alternative to traditional nebulizers available on the market.
Further characteristics and advantages, of the invention will emerge clearly from the ensuing detailed description with reference to the attached drawings, which illustrate a preferred embodiment thereof by way of non-limiting example.
In the drawings : . Figure ·1 is a schematic longitudinal section of an ultrasonic nebulizer for ' substances and solutions in the liquid state, according to the invention;
Figure 2 is" a cross-sectional view according to the plane of trace. Ά-Α of Figure 1, which shows the electrical and electronic elements necessary for governing and controlling the ultrasonic nebulizer;
Figure 3 . shows the electronic circuit that regulates operation of the nebulizer;
Figure 4 shows the outer container and the rotation that the internal device must perform for replacing the flask or reservoir containing the liquid to be nebulized;
Figure 5 shows insertion of the flask of the liquid to be nebulized, which takes place at the end of a rotation of the internal device through approximately 130°.
With reference to the figures, the nebulizer forming the subject of the invention is substantially constituted by a parallelepipedal container 6, from inside which it is possible to extract, by rotation on a pin 7, .a compartment 8 that encloses the components that perform the nebulization and is connectable via a supply tube 18 to the flask or reservoir 11 containing the liquid to be nebulized, as may be seen in Figure 5.
The compartment 8 contains: . a nebulization chamber 10, an expansion chamber 12, a piezoelectric transducer 14, a. fan 16, which introduces air into the expansion chamber 12, and all the electrical and electronic elements necessary for governing and controlling the ultrasonic nebulizer. According to a peculiar characteristic of the invention, the nebulization chamber 10 has the shape of a truncated cone, where the piezoelectric transducer 14 is set in a position corresponding to its major base, set at the bottom, whilst the minor base, set at the top, is connected to the funnel-shaped bottom of the expansion chamber 12. Since the outlet mouth of the funnel is of smaller cross section, it projects with a drip catcher 19 within the underlying nebulization chamber 10, enabling any possible non-nebulized drops of liquid to be collected and to drop into the well where the liquid to be nebulized is located.
The modalities of operation start with insertion of the flask 11 of the liquid to be nebulized (Figure 1). Said insertion can be made only after carrying out rotation of the compartment 8 through approximately 130°, as represented by the . arrow designated by 17 in Figure 5. Said rotation has the purpose of causing any possible residual liquid present in the nebulizer well 10 and in the connection duct 18 to flow into the flask 11: emptying of the nebulizer well 10 becomes necessary whenever it is required to replace the type of liquid to be nebulized.
Advantageously, the flask 11 is fixed in a fluid- tight way to the connection tube 18, screwing the neck 13 thereof into the purposely provided seat 13a.
After the operation of insertion of the flask 11, the compartment 8 of the device 10 is 'brought back into the vertical position (Figure 2). At this point, the liquid contained in the recharging flask 11, flows away through the duct 18 (Figure 2) until it reaches the nebulizer well 10, provided on the base of which is the piezoelectric transducer 14 for generating ultrasound waves. Filling of the well 10 is never complete so as to leave a space free between the free surface of the liquid to be nebulized and the drip catcher 19.
The particular truncated-cone shape of the nebulization chamber 10 enables optimal exploitation of the pressure of the sound radiation generated the piezoelectric transducer 14 itself, normally a ceramic piezoelectric disk. The high-frequency vibration of the piezoelectric transducer produces, by the Rayleigh effect, acoustic energy, which, traversing the liquid to be nebulized, generates an aerosol.
The pressure differential that is produced between the nebulization chamber 10 and the expansion chamber 12 (Figure 1) causes the nebulized particles to transfer into the overlying expansion chamber. The nebulized product present in the expansion chamber is forced into the outlet duct .20 (Figure 1) by an electric fan 16, which introduces air from outside into the expansion chamber 12, according to the arrows 27 of Figure 1.
The operation of the device is managed by an electronic circuit 22 (Figure 3) , which, in addition to driving the piezoelectric transducer 14, governs the fan 16 and the . warning lights 25 and 26, which indicate., respectively, the "operating" state and the "reservoir empty" state.
The electronic circuit 22 receives the commands · via an electrical switch 23 (Figure 3) , with which the cycles of turning-on of the apparatus are set, whilst a potentiometer 24 establishes the duration of operation.
The control circuit 22 turns off the nebulizing device automatically at the moment, in which it receives from the level probe 28 (Figures 1, 3) the reservoir- empty signal.
According to a characteristic of the invention, in order to prevent exit of the liquid in the event of turning-over of the device, the volume of liquid that fills the connection tube 18 and the nebulizer well 10 is much smaller than the volume of the recharging flask 11, which is screwed in a fluid-tight way to the connection tube 18.
It is evident that numerous modifications and variations may be · made to the device forming the subject of the invention by persons skilled in the branch, without thereby departing from the sphere of protection of the present invention as defined by the ensuing claims.

Claims

1. - An ultrasonic nebulizer for substances and solutions in the liquid state comprising a piezoelectric transducer (14), which, driven by an electronic circuit (22), has the task of generating high-frequency vibrations that are transformed into (ultrasound) acoustic waves, which, traversing the liquid, transform it into minute droplets, said ultrasonic nebulizer being characterized in that:
said piezoelectric transducer (14) is set in a position corresponding to the major base, which is set at the bottom, of a nebulization chamber (10) , which has the shape of a truncated cone partially filled with the liquid to be nebulized and which communicates at the top with the funnel-shaped bottom of an overlying expansion chamber (12) , the inclination of the walls being such as to enable an optimal exploitation of the acoustic waves generated by the piezoelectric- positioned on the roof of said expansion chamber (12) is a fan (16) governed by an electronic circuit (22), which introduces external air into said expansion chamber (12) creating a pressure differential with the external environment so as to push the nebulized product present in the expansion chamber outwards through a top outlet duct (20) ;
the funnel-shaped bottom of the expansion chamber (12) projects within the top outlet mouth of the nebulization chamber (10) forming an annular drip catcher (19) , which enables any possible non-nebulized drops of liquid to be collected and fall into the well, where the liquid to be nebulized is located.
2. - The ultrasonic nebulizer for substances and solutions in the liquid state as per the preceding claims, characterized 'in that the funnel-shaped base of the expansion chamber (12) enables the recondensed particles of aerosol to flow away into the underlying nebulization chamber.
3. - The ultrasonic nebulizer for substances and solutions in the liquid state as per the preceding claims, characterized in that a level probe (15) positioned in the connection duct (18) signals to the control circuit (22) the "reservoir empty" condition, with consequent turning-off of the device.
4. - The ultrasonic nebulizer for substances and ' solutions in the liquid state as per the preceding claims, characterized in that it comprises an electrical switch (23) , via which it is possible to set the cycles of turning-on and turning-off of the device.
5. - The- ultrasonic nebulizer for substances and solutions, in the liquid state as per the preceding claims, characterized in that it envisages a potentiometer (24), via which it is possible to set the time of operation of the device.
6. - The ultrasonic nebulizer for substances and solutions in the liquid state as per the preceding claim, characterized in that it envisages that the liquid to be nebulized is contained in an interchangeable recharging, flask or reservoir (11), designed to be installed upside down.
7. The ultrasonic nebulizer - for substances and solutions in the liquid state as per the preceding claims, characterized in that it' comprises a parallelepipedal container (6), from inside' which there can be extracted by rotation a compartment (8), which encloses the components that perform nebulization and which is connectable to said interchangeable flask or reservoir (11) containing the liquid to be nebulized, via a supply tube or duct (18), which comes under the nebulization chamber (10) .
8. The ultrasonic nebulizer for substances and solutions in the liquid state as per the preceding claims, characterized in that the volume of liquid to be nebulized that can be contained in the ensemble constituted by a fixing seat (13a) of the flask (11), the tube or duct (18), and the nebulization chamber (10) is significantly smaller than the capacity of the reservoir (11) so as to prevent emptying of said reservoir in the event where the device is turned upside down or else in a position different from the vertical one necessary for normal operation.
9. The ultrasonic nebulizer for substances and solutions in the liquid state . as per the preceding claim, characterized in that rotation of the compartment (8) through approximately 130° causes any possible residual liquid that may be present in the nebulizer well (10) and in the supply duct (18) to flow away into the. flask (11).
PCT/IT2011/000091 2011-03-23 2011-03-23 Ultrasonic atomizer for liquid substances and solutions WO2012127512A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2011/000091 WO2012127512A1 (en) 2011-03-23 2011-03-23 Ultrasonic atomizer for liquid substances and solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2011/000091 WO2012127512A1 (en) 2011-03-23 2011-03-23 Ultrasonic atomizer for liquid substances and solutions

Publications (1)

Publication Number Publication Date
WO2012127512A1 true WO2012127512A1 (en) 2012-09-27

Family

ID=44626570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2011/000091 WO2012127512A1 (en) 2011-03-23 2011-03-23 Ultrasonic atomizer for liquid substances and solutions

Country Status (1)

Country Link
WO (1) WO2012127512A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021130387A1 (en) * 2019-12-27 2021-07-01 Zobele Holding Spa Device for diffusing volatile substances

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55165166A (en) * 1979-06-08 1980-12-23 Matsushita Seiko Co Ltd Atomizing apparatus of liquid by ultrasonic wave
JPS5659142A (en) * 1979-10-18 1981-05-22 Hitachi Ltd Ultrasonic humidifier
JPS62138631A (en) * 1985-12-12 1987-06-22 Matsushita Electric Ind Co Ltd Ultra-sonic wave humidifier
EP0571316A1 (en) * 1992-05-22 1993-11-24 SHIRA AEROPONICS (1984) Ltd. Fog generator
EP0691162A1 (en) * 1994-07-04 1996-01-10 Imra Europe S.A. Spraying device, in particular for spraying water in the form of microdroplets, for a non-stationary environment
GB2291605A (en) * 1991-11-12 1996-01-31 Medix Ltd A nebuliser and nebuliser control system
WO2003084671A1 (en) * 2002-04-08 2003-10-16 Yugen Kaisha Hayashi Seiko Mist feeder
US20060213508A1 (en) * 2005-03-23 2006-09-28 Barnstead/Thermolyne Corporation Environmental chamber and ultrasonic nebulizer assembly therefor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55165166A (en) * 1979-06-08 1980-12-23 Matsushita Seiko Co Ltd Atomizing apparatus of liquid by ultrasonic wave
JPS5659142A (en) * 1979-10-18 1981-05-22 Hitachi Ltd Ultrasonic humidifier
JPS62138631A (en) * 1985-12-12 1987-06-22 Matsushita Electric Ind Co Ltd Ultra-sonic wave humidifier
GB2291605A (en) * 1991-11-12 1996-01-31 Medix Ltd A nebuliser and nebuliser control system
EP0571316A1 (en) * 1992-05-22 1993-11-24 SHIRA AEROPONICS (1984) Ltd. Fog generator
EP0691162A1 (en) * 1994-07-04 1996-01-10 Imra Europe S.A. Spraying device, in particular for spraying water in the form of microdroplets, for a non-stationary environment
WO2003084671A1 (en) * 2002-04-08 2003-10-16 Yugen Kaisha Hayashi Seiko Mist feeder
US20060213508A1 (en) * 2005-03-23 2006-09-28 Barnstead/Thermolyne Corporation Environmental chamber and ultrasonic nebulizer assembly therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021130387A1 (en) * 2019-12-27 2021-07-01 Zobele Holding Spa Device for diffusing volatile substances

Similar Documents

Publication Publication Date Title
US3469785A (en) High frequency ultrasonic fog generator and method
JP5192478B2 (en) Nebulizer weighing chamber
US6676034B2 (en) Atomizer and inhalator using same
KR20170108057A (en) Ultrasonic evaporation element
JP5084007B2 (en) Particle separation method and separation apparatus
WO2017201898A1 (en) Atomizing nozzle and atomization device comprising same
US20140216443A1 (en) Liquid spray device
JPH09253011A (en) Cyclone type wet electric cleaner
US20120266921A1 (en) Thin plate member washing apparatus
JP2017145982A (en) Ultrasonic atomizer
US20090200397A1 (en) Apparatus for atomisation and liquid filtration
JP6539468B2 (en) Ultrasonic atomizer
JPH08309248A (en) Liquid atomizer
WO2012127512A1 (en) Ultrasonic atomizer for liquid substances and solutions
TWI564040B (en) Effective control of ultra-fine atomized particles output of medical micro-mesh atomizer
CN203227160U (en) Micro-porous piezoelectric ceramic atomization piece
JPS632662B2 (en)
GB2506459A (en) Liquid spray device
JP6117153B2 (en) Atomizing solvent discharge device
CN109892705A (en) A kind of ultrasonic atomizing device of cumulative
JPS598768Y2 (en) Ultrasonic atomizer
JP2005144096A (en) Sprayer with illumination
JPH0910643A (en) Ultrasonic atomizer
CN210698329U (en) Dry-fog type ultrasonic atomization deodorization equipment
CN219579617U (en) Atomizer and be equipped with its atomizing device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11721125

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11721125

Country of ref document: EP

Kind code of ref document: A1