IT1020895B - Dispositivo d allarme acustico ad elevata potenza di uscita utilizzante un trasduttore piezo elettrico - Google Patents

Dispositivo d allarme acustico ad elevata potenza di uscita utilizzante un trasduttore piezo elettrico

Info

Publication number
IT1020895B
IT1020895B IT69916/74A IT6991674A IT1020895B IT 1020895 B IT1020895 B IT 1020895B IT 69916/74 A IT69916/74 A IT 69916/74A IT 6991674 A IT6991674 A IT 6991674A IT 1020895 B IT1020895 B IT 1020895B
Authority
IT
Italy
Prior art keywords
output power
alarm device
high output
acoustic alarm
piezo transducer
Prior art date
Application number
IT69916/74A
Other languages
English (en)
Original Assignee
Mallory & Co Inc P R
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 Mallory & Co Inc P R filed Critical Mallory & Co Inc P R
Application granted granted Critical
Publication of IT1020895B publication Critical patent/IT1020895B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems, e.g. audible personal calling systems
    • G08B3/10—Audible signalling systems, e.g. audible personal calling systems using electric transmission; using electromagnetic transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/40—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups with testing, calibrating, safety devices, built-in protection, construction details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/55—Piezoelectric transducer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Alarm Systems (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
IT69916/74A 1973-09-28 1974-09-27 Dispositivo d allarme acustico ad elevata potenza di uscita utilizzante un trasduttore piezo elettrico IT1020895B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US401944A US3890612A (en) 1973-09-28 1973-09-28 High output audible alarm device utilizing a piezoelectric transducer

Publications (1)

Publication Number Publication Date
IT1020895B true IT1020895B (it) 1977-12-30

Family

ID=23589905

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69916/74A IT1020895B (it) 1973-09-28 1974-09-27 Dispositivo d allarme acustico ad elevata potenza di uscita utilizzante un trasduttore piezo elettrico

Country Status (8)

Country Link
US (1) US3890612A (it)
JP (1) JPS5062400A (it)
BR (1) BR7407440D0 (it)
CA (1) CA1031450A (it)
DE (1) DE2446360A1 (it)
FR (1) FR2246148B3 (it)
GB (1) GB1480414A (it)
IT (1) IT1020895B (it)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1087004A (en) * 1976-08-11 1980-10-07 Michael J. Hampshire Sound generator
US4104628A (en) * 1976-10-15 1978-08-01 P.R. Mallory & Co. Inc. High output audible alarm device utilizing a piezoelectric transducer and voltage doubling means
US4310833A (en) * 1980-01-15 1982-01-12 Kobishi America, Inc. Electrically-energized horn
US4328485A (en) * 1980-02-25 1982-05-04 Potter Bronson M Binary alarm
US4382251A (en) * 1980-09-23 1983-05-03 Casio Computer Co., Ltd. Envelope control device for piezoelectric buzzer
US4617620A (en) * 1982-06-14 1986-10-14 Eaton Corporation DC to DC converter with self-starting flyback oscillator
GB2145905B (en) * 1983-08-31 1987-05-07 Kobishi Electric Co Ltd Audible warning device
US4659042A (en) * 1984-06-19 1987-04-21 Friddle Ii William B Canopy locator
US5111509A (en) * 1987-12-25 1992-05-05 Yamaha Corporation Electric acoustic converter
US4998091A (en) * 1988-08-01 1991-03-05 The Game Tracker, Inc. Animal warning alarm
US4963855A (en) * 1990-02-21 1990-10-16 Kobishi Electric Co., Inc. Ltd. Warning sound generating device
US5278537A (en) * 1992-07-27 1994-01-11 Winner International Corporation Electronic alarm for avoiding collision with animals in a non-destructive manner
US5949147A (en) * 1996-05-24 1999-09-07 Hayes Lemmerz International, Inc. Short circuit safety audible monitor
US5990797A (en) * 1997-03-04 1999-11-23 Bkk Brands, Inc. Ultraloud smoke detector
US6160245A (en) * 1999-05-19 2000-12-12 Maytag Corporation Variable volume signaling device for an appliance
US6252496B1 (en) 1999-09-10 2001-06-26 Otto V. Jackson Animal warning alarm device
DE10148303B4 (de) * 2001-09-29 2006-12-14 Dbt Gmbh Verwendung eines Warntongebers
GB2388995B (en) * 2002-05-23 2004-06-30 Gent Ltd Improvements in and relating to alarms
US7113098B1 (en) 2002-08-29 2006-09-26 Melvin Hayes Animal accident reduction systems, methods, and apparatuses
US8384554B1 (en) * 2009-01-09 2013-02-26 Kevin M. Curtis Audible current monitoring device
CN104778814A (zh) * 2015-04-24 2015-07-15 国网河南夏邑县供电公司 防止误入带电变压器室语音报警装置
US11140476B1 (en) * 2020-06-10 2021-10-05 The Government of the United States of America, as represented by the Secretary of Homeland Security Remote audible alarm accessory for detection instruments with audio outputs
CN113179186A (zh) * 2021-05-21 2021-07-27 牛智军 用于机房辅助监控的干接点告警系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569963A (en) * 1969-10-06 1971-03-09 Mallory & Co Inc P R Audible alarm unit
US3742492A (en) * 1971-01-11 1973-06-26 D Proctor Transducer drive circuit and signal generator
US3763488A (en) * 1971-06-11 1973-10-02 Mallory & Co Inc P R Monolithic timer

Also Published As

Publication number Publication date
GB1480414A (en) 1977-07-20
JPS5062400A (it) 1975-05-28
FR2246148A1 (it) 1975-04-25
CA1031450A (en) 1978-05-16
US3890612A (en) 1975-06-17
FR2246148B3 (it) 1977-07-08
BR7407440D0 (pt) 1975-07-15
DE2446360A1 (de) 1975-06-19

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