CA2371873A1 - Control system for atomizing liquids with a piezoelectric vibrator - Google Patents

Control system for atomizing liquids with a piezoelectric vibrator Download PDF

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Publication number
CA2371873A1
CA2371873A1 CA002371873A CA2371873A CA2371873A1 CA 2371873 A1 CA2371873 A1 CA 2371873A1 CA 002371873 A CA002371873 A CA 002371873A CA 2371873 A CA2371873 A CA 2371873A CA 2371873 A1 CA2371873 A1 CA 2371873A1
Authority
CA
Canada
Prior art keywords
alternating voltage
control system
drive period
piezoelectric vibrator
during
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002371873A
Other languages
French (fr)
Other versions
CA2371873C (en
Inventor
Dennis J. Denen
Gary E. Myers
Leon M. Headings
George A. Clark
Eric R. Navin
Todd L. James
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.)
SC Johnson and Son Inc
Original Assignee
S.C. Johnson & Son, Inc.
Dennis J. Denen
Gary E. Myers
Leon M. Headings
George A. Clark
Eric R. Navin
Todd L. James
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 S.C. Johnson & Son, Inc., Dennis J. Denen, Gary E. Myers, Leon M. Headings, George A. Clark, Eric R. Navin, Todd L. James filed Critical S.C. Johnson & Son, Inc.
Publication of CA2371873A1 publication Critical patent/CA2371873A1/en
Application granted granted Critical
Publication of CA2371873C publication Critical patent/CA2371873C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00—Stationary means for catching or killing insects
    • A01M1/20—Poisoning, narcotising, or burning insects
    • A01M1/2022—Poisoning or narcotising insects by vaporising an insecticide
    • A01M1/2027—Poisoning or narcotising insects by vaporising an insecticide without heating
    • A01M1/2044—Holders or dispensers for liquid insecticide, e.g. using wicks
    • A01M1/205—Holders or dispensers for liquid insecticide, e.g. using wicks using vibrations, e.g. ultrasonic or piezoelectric atomizers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
    • B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0653—Details
    • B05B17/0676—Feeding means
    • B05B17/0684—Wicks or the like

Abstract

There is described a battery driven atomizer in which an alternating voltage is applied to a piezoelectric actuation element (10) to cause it to expand and contract and vibrate an atomizing orifice plate. The alternating voltage is controlled to produce a high amplitude vibration during a first portion of a drive period, to initiate atomization, and thereafter to produce a lower amplitude vibration to sustain atomization during the remainder of the drive period. The frequency of the alternating voltage is swept repeatedly during each drive period.
CA002371873A 1999-03-05 2000-03-06 Control system for atomizing liquids with a piezoelectric vibrator Expired - Fee Related CA2371873C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12415599P 1999-03-05 1999-03-05
US60/124,155 1999-03-05
PCT/US2000/005783 WO2000051747A1 (en) 1999-03-05 2000-03-06 Control system for atomizing liquids with a piezoelectric vibrator

Publications (2)

Publication Number Publication Date
CA2371873A1 true CA2371873A1 (en) 2000-09-08
CA2371873C CA2371873C (en) 2006-06-20

Family

ID=22413112

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002371873A Expired - Fee Related CA2371873C (en) 1999-03-05 2000-03-06 Control system for atomizing liquids with a piezoelectric vibrator

Country Status (19)

Country Link
US (2) US6296196B1 (en)
EP (1) EP1159079B1 (en)
JP (1) JP4666769B2 (en)
KR (1) KR100477423B1 (en)
CN (1) CN1153630C (en)
AR (2) AR030524A1 (en)
AT (1) ATE258827T1 (en)
AU (1) AU767322B2 (en)
BR (1) BR0008730B1 (en)
CA (1) CA2371873C (en)
DE (1) DE60008074T2 (en)
ES (1) ES2209857T3 (en)
HK (1) HK1043752B (en)
MX (1) MXPA01008926A (en)
NZ (1) NZ514272A (en)
PL (1) PL194790B1 (en)
TW (1) TW510827B (en)
WO (1) WO2000051747A1 (en)
ZA (1) ZA200107249B (en)

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