US20100206306A1 - Self-sensing dispensing device - Google Patents

Self-sensing dispensing device Download PDF

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Publication number
US20100206306A1
US20100206306A1 US12/705,450 US70545010A US2010206306A1 US 20100206306 A1 US20100206306 A1 US 20100206306A1 US 70545010 A US70545010 A US 70545010A US 2010206306 A1 US2010206306 A1 US 2010206306A1
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US
United States
Prior art keywords
liquid
actuator
self
dispensing device
sensing
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.)
Abandoned
Application number
US12/705,450
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English (en)
Inventor
Amir Feriani
Joseph Hess
Cédric ZAUGG
Jean-Paul Sandoz
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.)
Henkel AG and Co KGaA
Aptar France SAS
Original Assignee
EP Systems 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
Priority to ES13172390.0T priority Critical patent/ES2494691T3/es
Application filed by EP Systems SA filed Critical EP Systems SA
Assigned to EP SYSTEMS SA reassignment EP SYSTEMS SA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SANDOZ, JEAN-PAUL, HESS, JOSEPH, ZAUGG, CEDRIC, FERIANI, AMIR
Publication of US20100206306A1 publication Critical patent/US20100206306A1/en
Assigned to HENKEL AG & CO. KGAA reassignment HENKEL AG & CO. KGAA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EP SYSTEMS SA
Priority to US13/892,365 priority patent/US9095671B2/en
Priority to US13/892,372 priority patent/US9089662B2/en
Priority to US13/892,370 priority patent/US9474871B2/en
Assigned to APTAR FRANCE SAS reassignment APTAR FRANCE SAS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EP SYSTEMS SA
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0091—Inhalators mechanically breath-triggered
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/005—Sprayers or atomisers specially adapted for therapeutic purposes using ultrasonics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/0085—Inhalators using ultrasonics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B05B12/126—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to target velocity, e.g. to relative velocity between spray apparatus and target
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1217—Electrical control means for the dispensing mechanism
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/11—Apparatus for controlling air treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/11—Apparatus for controlling air treatment
    • A61L2209/111—Sensor means, e.g. motion, brightness, scent, contaminant sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/13—Dispensing or storing means for active compounds
    • A61L2209/132—Piezo or ultrasonic elements for dispensing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
    • A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
    • A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
    • A61M2016/0021—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with a proportional output signal, e.g. from a thermistor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0039—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/14—Detection of the presence or absence of a tube, a connector or a container in an apparatus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/82—Internal energy supply devices
    • A61M2205/8206—Internal energy supply devices battery-operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3053—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a solenoid
    • 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

Definitions

  • the present invention relates to a self-sensing dispensing device, suitable for dispensing liquid substances, such as by activating a flow or a spray of droplets.
  • a self-sensing dispensing device suitable for dispensing liquid substances, such as by activating a flow or a spray of droplets.
  • Such device normally contains a dispensing body on a support part, in particular, a spout or a nozzle body of a liquid droplet spray device that dispenses a liquid substance from the device through the dispensing body.
  • Such activation may be carried out by valving means to allow a flow and/or by pumping or pressurizing means.
  • Such activation may further be carried out by a piezoelectric actuator used as a vibrating element for causing the liquid to vibrate so to be accelerated and expelled.
  • a typical device further may consist of elements such as a liquid space, liquid feed and fluid interface to a reservoir, a reservoir as well as electrical connections between the vibrating element and a corresponding electronic circuitry.
  • the liquid may be for example an ambient fragrance, a perfume, an insecticide, a fungicide, a fabric softener, an aromatherapy essence, a cleaning solution, a liquid pharmaceutical formulation, a lotion, cream, emulsion, aqueous based liquids and flammable or combustible liquids.
  • Such dispensing bodies are sometimes called spouts, aperture plates, nozzle arrays, dosing apertures, orifice plates, vibratable membranes, atomizer, vibrating plate, dosing aperture arrangements, aerosol generators and the like. Such terms are hence to be understood as being interchangeable throughout the present document.
  • dispensing bodies and liquid dispensing devices are well known.
  • EP 1 129 741 in the name of the present Applicant.
  • This document describes a dispensing device for spraying liquid and has a top substrate formed of a main body and of a nozzle body.
  • the nozzle body contains a nozzle array of liquid droplet outlet means allowing a liquid substance contained in the liquid droplet spray device to exit the device, in this case as a spray of droplets.
  • a piezoelectric actuator is used to cause the liquid to undergo a vibration so as to generate the droplet spray.
  • Such piezoelectric actuator is driven so as to oscillate at or near an appropriate frequency to improve energy efficiency.
  • the document EP 1 043 162 describes an inkjet apparatus having a liquid detection method using an infrared detector to determine if liquid has passed through a spray path or not. Control means are provided to adjust the spraying itself.
  • the document US 2007/0216256 describes a drive control circuit for a piezoelectric activated pump. By measuring the internal impedance of the piezoelectric actuator, it is possible to control the operation frequency.
  • Document US2003/0146300 describes a nebulizer for nebulizing a substance and a reservoir having a metering chamber arranged so as to feed a substance to be nebulized from the nebulization device and a second chamber arranged to hold and retain any of this substance in excess of the volume held in the metering chamber.
  • the device allows detecting the ejection of a unit dose.
  • the present invention concerns a dispensing device fulfilling these objectives efficiently, which may be obtained in a relatively simple and inexpensive manner, as defined in the appended claims.
  • the device is further capable of indirectly triggering and monitoring itself.
  • a self-sensing dispensing device includes: power supply means ( 4 , 24 , 34 ); a liquid dispensing element ( 9 , 29 , 39 ) comprising an actuator ( 11 , 211 , 311 ) and a dispensing aperture ( 10 , 210 , 310 ) through which liquid is to be dispensed by activation of the actuator; electronic control means ( 6 , 26 , 33 ) operable to control the actuator; liquid supply means ( 8 , 18 , 28 ) for connecting with a liquid reservoir ( 1 , 21 , 31 ) to supply liquid from the reservoir to the liquid dispensing element; valving means ( 7 , 27 , 37 , 47 ) for allowing or blocking liquid to flow from the reservoir through the liquid supply means to the liquid dispensing element, wherein the actuator is operable to execute in itself at least a dispensing function and a detecting function, the detecting function detecting at least characteristics external
  • the first embodiment is modified so that the electronic control means is operable to open and/or close the valving means based on the command signal.
  • the second embodiment is further modified so that the electronic control means is operable to turn on and off the self-sensing dispensing device based on the command signal.
  • the first embodiment, the second embodiment and the third embodiment are further modified so that the electronic control means is operable to analyze a time-frequency response of the command signal, the result of the analysis allowing to trigger the valving means.
  • the fourth embodiment is further modified so that the electronic control means comprises memory means for storing results of the analysis for self-learning purposes.
  • a self-sensing dispensing device includes: power supply means ( 4 ); a liquid dispensing element ( 9 ) comprising an actuator ( 11 , 211 , 311 ) and a dispensing aperture ( 10 ) through which liquid is to be dispensed by activation of the actuator; electronic control means ( 6 ) operable to control the actuator; liquid supply means ( 8 ′) for connecting with a liquid reservoir ( 1 ) to supply liquid from the reservoir to the liquid dispensing element, wherein the actuator ( 10 ) is operable to execute in itself at least a dispensing function and a detecting function, the detecting function detecting at least characteristics external to the self-sensing dispensing device and causing the actuator to generate a command signal, and wherein the electronic control means is operable to control the actuator based on the reception of the command signal.
  • the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment and the sixth embodiment are modified so that the actuator is a piezoelectric actuator.
  • the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment, the sixth embodiment and the seventh embodiment are modified so that the actuator is an electromagnetic actuator.
  • a shower apparatus includes: a showerhead ( 13 ); and a water flow detector, wherein the water flow detector consists of a self-sensing dispensing device according to the seventh embodiment.
  • a respiratory treatment device includes: a self-sensing dispensing device according to the seventh embodiment; a mouthpiece; and a fluidic interface, wherein the electronic control means and the piezoelectric actuator are arranged to detect a breathing pattern of a user through the mouthpiece.
  • a liquid dispenser that includes: a self-sensing dispensing device according to the seventh embodiment, wherein the dispensing element has at least one outlet for dispensing the liquid as a flow, and the electronic control means and the piezoelectric actuator are arranged to detect presence or movement of an object in the proximity of the piezoelectric actuator.
  • a liquid dispenser that includes: a self-sensing dispensing device according to a sixth embodiment of the present invention, wherein the dispensing element has at least one outlet for dispensing the liquid as a flow, and the electronic control means and the electromagnetic actuator are arranged to detect presence or movement of an object in the proximity of the electromagnetic actuator.
  • a household appliance is provided that includes a self-sensing dispensing device according to the sixth embodiment of the present invention.
  • FIG. 1 a shows a first example of a self-sensing piezoelectric dispensing device in a first illustrative embodiment according to the present invention used in a water flow detector of a shower apparatus;
  • FIG. 1 b shows a second example of a self-sensing piezoelectric dispensing device in the first illustrative embodiment
  • FIG. 1 b 1 shows an example of a priming system for a self-sensing piezoelectric dispensing device in the first illustrative embodiment
  • FIG. 1 c shows a third example of a self-sensing piezoelectric dispensing device in the first illustrative embodiment
  • FIGS. 1 d and 1 e show examples of signals used in a water flow detection in the first illustrative embodiment
  • FIG. 2 a shows an example of a self-sensing piezoelectric dispensing device in a second illustrative embodiment according to the present invention used in an inhaler or nebulizer;
  • FIGS. 2 b and 2 c show a time domain response and a frequency response for a detected inhalation airflow of a person using a self-sensing piezoelectric dispensing device in the second illustrative embodiment
  • FIGS. 2 d and 2 e show in analogy the detected exhalation flow of the self-sensing piezoelectric dispensing device in the second illustrative embodiment
  • FIG. 3 a shows a first example of a self-sensing piezoelectric dispensing device in a third illustrative embodiment according to the present invention used in a liquid dispenser with a hand proximity detection;
  • FIG. 3 b shows a second example of a self-sensing electromagnetic dispensing device in the third illustrative embodiment.
  • FIGS. 3 c and 3 d show examples of signals used in the hand proximity detection in the third illustrative embodiment.
  • the self-sensing dispensing device is used to control the operation of an actuator in a liquid dispensing device.
  • a self-sensing piezoelectric dispensing device is used as a water flow detector arranged close to a showerhead of a shower apparatus.
  • a cleaning, disinfecting or fragrancing formulation, or the like may be dispensed from the self-sensing piezoelectric dispensing device. This may be done. for example, by way of a spray of droplets, i.e. in such a case the dispensing device is an atomizer or liquid droplet spray device.
  • FIG. 6 discloses an automated sprayer for spraying the walls of a bath and shower enclosure with a cleanser.
  • the sprayer has a housing that can be mounted inside the shower enclosure.
  • a tube extends downwardly along a longitudinal axis through which the cleanser can pass.
  • a motorized head disposed beneath the tube can be rotated about the axis for metering cleanser from the bottle and spraying cleanser outward.
  • the sprayer includes a motion sensor to prevent spraying if someone is present in the shower.
  • a separate sensor can be avoided, as it is the piezoelectric actuator itself that functions as a sensor. Therefore, reliability can be improved, as there are fewer parts prone to malfunctioning.
  • FIG. 1 a A first example of the first illustrative embodiment is shown in FIG. 1 a where a pressurized cleaner tank 1 is provided for containing a liquid.
  • a venting hole 2 is advantageously provided with a hydrophobic membrane to ensure correct priming by tank over-pressuring and also to ensure correct emptying of the tank.
  • a liquid feed conduit 81 having a cut-out section acting as a venting hole 2 can be used to pressurize the liquid and to vent the tank and feed the liquid to an inlet channel 8 .
  • this liquid feed conduit 81 is ready to be inserted into the tank (A).
  • the pressure P int in tank 1 is equal to the atmospheric pressure P atm .
  • the tank (B) it enters the tank (B), so that the internal pressure P int becomes greater than P atm .
  • the venting hole allows for release of air (C) so that P int equals again P atm .
  • Tank 1 is placed in a housing 3 fitted to a shower apparatus having a showerhead 13 .
  • Housing 3 further contains a battery 4 and appropriate electronic control means 6 for activating and deactivating a dispensing element, here a liquid spray head 9 .
  • Liquid spray head 9 is mounted on a support, for example, a wall 12 in the vicinity of showerhead 13 .
  • Liquid spray head 9 comprises a piezoelectric actuator 11 and an aperture plate or nozzle head 10 having one or more outlet nozzles through which the liquid cleaning solution is expelled as a spray of droplets, in a manner well known to a person of the art.
  • An inlet channel 8 is provided to supply liquid from tank 1 to spray head 9 .
  • Inlet channel 8 may be mounted to support 12 by way of a clip 5 . Access from tank 1 to spray head 9 , through inlet channel 8 , may be controlled by valving means, for example an electro-valve 7 , suitably arranged between the tank and the spray head, and controlled by electronic control means
  • Electrovalve 7 can be a one way valve or a multi-way valve. There can be one or several liquid spray heads. Also, the tank arrangement and the liquid spray arrangement may be side by side on a surface instead of on different sides of a wall such as shown in FIGS. 1 a , 1 b and 1 c.
  • any liquid supplied to spray head 9 is put into vibration by piezoelectric actuator 11 so that ultrasonic energy thus created acts on liquid in spray head 9 to cause it to be ejected as a spray of droplets through the nozzle(s) 10 , in a manner known to the skilled person.
  • the piezoelectric actuator is operable to execute at least a dispensing function and a detecting function.
  • the dispensing function may be triggered by an electronic control signal from electronic control means 6 for vibrating the piezoelectric actuator, whereby the ultrasonic energy is transmitted to the liquid so as to allow for vibration thereof, thereby resulting in the dispensing of the liquid from the dispensing element through the nozzle(s) 10 .
  • the detecting function is used to detect at least characteristics external to the dispensing device and results in a perturbation of the piezoelectric actuator. This perturbation generates an electronic signal, which may be detected by electronic control means 6 , and thus may constitute a command signal of electronic control means 6 for controlling valving means 7 and spray head 9 .
  • piezoelectric actuator 11 not only allows liquid to be dispensed, but it also allows to control when, how and which liquid (when using more than one tank) is to be dispensed.
  • the piezoelectric actuator 11 can be used to detect external characteristics, in this case water flow of the shower, as such water flow creates combined sonic and ultrasonic pressure waves in the proximity of the shower apparatus, which causes perturbation that can be picked up by piezoelectric actuator 11 , thus allowing detection of the water flow.
  • FIGS. 1 c and 1 d The analysis of the electrical signals resulting from the water flow-generated pressure waves will be explained in more detail with respect to FIGS. 1 c and 1 d .
  • the start and stop of the water flow can be readily detected as the pressure waves detected by piezoelectric actuator 11 increase sharply when water flow starts, and decrease rapidly when the water flow stops.
  • a threshold detection additional to the above analysis, as shown for example in FIG. 1 d , above which a water flow is considered to be in progress.
  • the start and stop of a water flow can be readily detected by the self-sensing spray head 9 .
  • the piezo-generated electric signal undergoes appropriate filtering in order to reliably isolate the water flow-originated signal from everything else picked-up (i.e. background noise).
  • the self-sensing spray head 9 and the electronic control means 6 may be arranged to allow spraying of the fragrancing liquid during the showering process and spraying the disinfecting liquid some predetermined time after the showering process.
  • the applications may not be not limited to showers, but that there may be other devices that use the same self-sensing principle, including applications in household appliances, like laundry dryers, vacuum cleaners, cleaning robots, and the like.
  • FIG. 1 b A second example of the first illustrative embodiment is shown in FIG. 1 b where an arrangement is shown that is rather similar to the one in the first example. Same elements are referred to by the same reference numerals.
  • housing 3 is arranged above tank 1 , and thus inlet channel 8 extends into the tank to allow the liquid solution to be drawn out towards spray head 9 .
  • the configuration of the second example avoids possible leakage of residual liquid after removing tank 1 .
  • FIG. 1 c A third example of the first illustrative embodiment is shown in FIG. 1 c where a rather similar arrangement is shown as in the second example. Same elements are referred to by same reference numerals.
  • housing 3 is thus also arranged above tank 1 .
  • the inlet channel is formed of two parts, a first part 7 ′, which is in this example a wick contained in tank 1 , and a second part 8 ′, which may also be a wick, or may be a capillary channel for transporting the liquid provided from tank 1 by way of wick 7 ′ to spray head 9 .
  • This example does not use an electro-valve, so that the liquid transfer from tank 1 to spray head 9 is performed by capillarity (i.e., capillary action).
  • spray head 9 is positioned such that the hydrostatic pressure at spray head 9 is higher than the hydrostatic pressure in tank 1 .
  • any release of liquid from tank 1 , and thus from the dispensing device is controlled by signals provided by the self-sensing piezoelectric actuator.
  • the self-sensing piezoelectric dispensing device is used as a breathing pattern detector in a respiratory treatment device allowing to trigger the release of a substance.
  • Respiratory treatment devices are generally known as inhalers or nebulizers for delivering active substances to a user by means of his or her respiratory system. It may be used, for example, for the controlled administration of drugs or for a variety of treatments including therapies and general wellness oriented applications.
  • the respiratory treatment device delivers the substance, which may be in the form of a liquid or gel, as a dispersion of atomized droplets. Preferably, such a device is small in size and battery operated so that the user may carry and use it in a discreet manner.
  • Such devices are well known as such, see for example the documents EP 923 957 or U.S. Pat. No. 6,405,934B1, both in the name of the present Applicant.
  • FIG. 2 a shows an example of a respiratory treatment device comprising a self-sensing piezoelectric spray head 29 according to the present invention.
  • a reservoir 21 is provided attached to a housing 22 .
  • Reservoir 21 may contain a substance that is to be expelled as a spray of droplets from the inhaler into the mouth of a person operating the respiratory treatment device.
  • the respiratory treatment device further comprises a mouthpiece 26 and a fluidic interface 25 allowing the substance from reservoir 21 to arrive at the mouthpiece 26 .
  • Mouthpiece 26 contains a liquid dispensing element, i.e., spray head 29 , comprising a piezoelectric actuator 211 and a nozzle head 210 having one or more outlet nozzles through which the substance is expelled as a spray of droplets.
  • This spray head may, of course, be similar to the one of the first illustrative embodiment.
  • an inlet channel 28 and valving means, such as an electro-valve 27 may be provided for supplying the substance from reservoir 21 to spray head 29 .
  • Housing 22 comprises electronic control means 23 and a power source, such as battery 24 , for supplying power to the electronic control means 23 and to the piezoelectric actuator 211 .
  • a power source such as battery 24
  • housing 22 comprises electronic control means 23 and a power source, such as battery 24 , for supplying power to the electronic control means 23 and to the piezoelectric actuator 211 .
  • these parts may be identical to those described in the first illustrative embodiment.
  • piezoelectric actuator 211 again converts mechanical perturbations to electricity, but now applies the principle to the detection of the inhalation and exhalation pattern of a person using the respiratory treatment device. Indeed, when putting the mouthpiece into the mouth, a person will inhale and exhale. This inhalation/exhalation causes perturbations of the piezoelectric actuator so that the inhalation and exhalation airflows of the person can be detected.
  • the substance to be administered can be expelled as a spray by the self-sensing spray head 29 at the appropriate time to allow for an efficient treatment, i.e., while the person is actually inhaling, and not exhaling.
  • FIGS. 2 b and 2 c show the time response and the frequency response for a detected inhalation of a person.
  • the electronic control means 23 can trigger electro-valve 27 to allow substance to be supplied to spray head 29 for spraying into the person's mouth after detection of the beginning of the inhalation process and then electro-valve 27 can again be closed to block further access of substance to the spray head, once the end of the inhalation process is detected.
  • FIGS. 2 d and 2 e show, in analogy, the exhalation process detected by piezoelectric actuator 211 .
  • this process is carried out in an analogous manner to the one described above for the inhalation process.
  • triggering of the spray device may be prevented during exhalation.
  • the inhalation can be differentiated from the exhalation. Indeed, as can be seen from FIGS. 2 b to 2 d , the inhalation and exhalation can be differentiated by an appropriate time-frequency analysis.
  • FIG. 3 a shows a first example of a self-sensing piezoelectric dispensing device in a third illustrative embodiment according to the present invention used in a liquid dispenser.
  • the piezoelectric actuator 311 is also used as a proximity sensor, for example, for detecting the presence of a hand passing in front of the dispenser, thus allowing control of release of the substance to be dispensed.
  • the liquid dispenser may release soap from a spout onto a hand.
  • the dispensing device is again rather similar to that of the first and second illustrative embodiments.
  • a housing 32 is provided comprising a reservoir 31 for containing liquid to be dispensed.
  • a battery 34 and electronic control means 33 for controlling the release of liquid, by way of signals sent by the piezoelectric actuator, similar to the functioning in the above-described illustrative embodiments.
  • any release of liquid from reservoir 31 is controlled by signals provided by the piezoelectric actuator 311 .
  • inlet means are provided for providing a fluidic connection between reservoir 31 and a dispensing element, here dispensing head 39 by way of valving means, such as an electro-valve 37 .
  • Dispensing head 39 comprises a dispensing aperture 310 , for example, a spout, having one or more nozzles through which the liquid is to be dispensed.
  • a piezoelectric actuator 311 is also provided in the dispensing head to allow control of electro-valve 37 , by detection of the proximity of a hand, and thus of the release of liquid from the reservoir, and ultimately from the dispensing device.
  • FIG. 3 b shows a second example of a self-sensing dispensing device in the third illustrative embodiment. It merely differs from the above first example in that the self-sensing dispensing device comprises an electromagnetic dispenser instead of a piezoelectric dispenser. The other parts are identical to those of FIG. 3 a and are identified by the same reference numerals. Thus, an electromagnetic actuator 47 is used instead of a piezoelectric actuator. The windings of this electromagnetic actuator may be used, for example, to detect perturbations in an electromagnetic field caused by the presence or movement of a hand in its proximity.
  • the dispenser may be arranged to emit an appropriate electrical signal to detect reflection thereof, by way of analysis of the return signal.
  • any movement, object or presence below the actuator can be detected.
  • analysis of a return signal is well known as such to a person skilled in the art.
  • the self-sensing dispensing device may be, for example, a soap dispenser, when a hand arrives in the proximity of the dispenser, its presence is detected by the return signal bouncing off the hand.
  • This return signal is then analyzed by the electronic control means 33 in order to control the valving means, so as to allow liquid to flow from reservoir 31 to dispensing head 39 , and ultimately to leave the dispensing device onto the hand below it. Once the hand is removed, the return signal will change so that this can also be detected, therefore allowing the dispensing operation to stop by closing the valving means.
  • FIGS. 3 c and 3 d shows examples of signals used in a hand proximity detection in the second example of the third illustrative embodiment.
  • the proximity and the absence of proximity can be readily detected by appropriate time-frequency analysis of the signals shown in FIG. 3 c and FIG. 3 d.
  • a smart dispensing device may be obtained by using a self-sensing dispenser.
  • Actuation can be triggered by an acoustic pressure wave, noise, a breathing pattern, presence detection, or by motion detection.
  • the dispensing device may be provided with self-learning technology.
  • the electronic control means may be provided with a memory for storing detection results and to allow for a self-calibration, by comparing with previously stored detection results.
  • the electronic control means may analyze the envelope of the command signal generated by the actuator by comparing it with pre-stored signals, the result of this comparison allowing to trigger the actuation means.
  • the present self-sensing piezoelectric dispenser may even detect clogging, as this leads to modification of the electro-mechanical characteristic of the self-sensing piezoelectric dispenser.
  • an empty detection in the dispenser can be performed in this manner, so the piezoelectric actuator can be stopped.

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US12/705,450 2009-02-10 2010-02-12 Self-sensing dispensing device Abandoned US20100206306A1 (en)

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Application Number Priority Date Filing Date Title
ES13172390.0T ES2494691T3 (es) 2009-02-10 2009-02-10 Dispositivo de tratamiento respiratorio de auto-detección
US13/892,365 US9095671B2 (en) 2009-02-10 2013-05-13 Self-sensing dispensing device
US13/892,372 US9089662B2 (en) 2009-02-10 2013-05-13 Self-sensing dispensing device for a cleaning solution or fabric softener
US13/892,370 US9474871B2 (en) 2009-02-10 2013-05-13 Self-sensing respiratory treatment device

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EP09152483A EP2216100A1 (fr) 2009-02-10 2009-02-10 Distributeur à auto-détection

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US13/892,372 Division US9089662B2 (en) 2009-02-10 2013-05-13 Self-sensing dispensing device for a cleaning solution or fabric softener
US13/892,365 Division US9095671B2 (en) 2009-02-10 2013-05-13 Self-sensing dispensing device

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US13/892,372 Active 2030-05-26 US9089662B2 (en) 2009-02-10 2013-05-13 Self-sensing dispensing device for a cleaning solution or fabric softener
US13/892,370 Active 2031-11-09 US9474871B2 (en) 2009-02-10 2013-05-13 Self-sensing respiratory treatment device
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US13/892,365 Active 2030-05-26 US9095671B2 (en) 2009-02-10 2013-05-13 Self-sensing dispensing device

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EP2641630A1 (fr) 2013-09-25
EP2641662B1 (fr) 2014-12-24
US9474871B2 (en) 2016-10-25
EP2216100A1 (fr) 2010-08-11
ES2530765T3 (es) 2015-03-05
US20130248559A1 (en) 2013-09-26
JP2010184236A (ja) 2010-08-26
US20130248558A1 (en) 2013-09-26
US9095671B2 (en) 2015-08-04
EP2641630B1 (fr) 2014-08-13
PL2641663T3 (pl) 2015-05-29
EP2641662A1 (fr) 2013-09-25
EP2641663B1 (fr) 2014-12-24
US20130247902A1 (en) 2013-09-26
ES2494691T3 (es) 2014-09-15
ES2532224T3 (es) 2015-03-25
EP2641663A1 (fr) 2013-09-25
US9089662B2 (en) 2015-07-28
PL2641662T3 (pl) 2015-05-29
JP5639364B2 (ja) 2014-12-10

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