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ATE7096T1 - SIGNALING DEVICES TO GENERATE AN ACOUSTIC SIGNAL. - Google Patents

SIGNALING DEVICES TO GENERATE AN ACOUSTIC SIGNAL.

Info

Publication number
ATE7096T1
ATE7096T1AT81102766TAT81102766TATE7096T1AT E7096 T1ATE7096 T1AT E7096T1AT 81102766 TAT81102766 TAT 81102766TAT 81102766 TAT81102766 TAT 81102766TAT E7096 T1ATE7096 T1AT E7096T1
Authority
AT
Austria
Prior art keywords
generate
acoustic signal
signaling devices
layer
piezoelectric
Prior art date
Application number
AT81102766T
Other languages
German (de)
Inventor
Manfred Dipl.-Ing. Koslar
Original Assignee
Siemens Aktiengesellschaft
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 Siemens AktiengesellschaftfiledCriticalSiemens Aktiengesellschaft
Application grantedgrantedCritical
Publication of ATE7096T1publicationCriticalpatent/ATE7096T1/en

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Abstract

Device for generating acoustic signals using as an electromechanical transducer element a piezoelectric quadrangular ceramic plate (1) which is covered on the face opposite to the main layer (9) with a layer having on its center an opening (3) provided for the reactive coupling layer (4).
AT81102766T1980-04-101981-04-10 SIGNALING DEVICES TO GENERATE AN ACOUSTIC SIGNAL.ATE7096T1 (en)

Applications Claiming Priority (2)

Application NumberPriority DateFiling DateTitle
DE3013788ADE3013788C2 (en)1980-04-101980-04-10 Piezoceramic disc for a signal generator to generate an acoustic signal
EP81102766AEP0038043B1 (en)1980-04-101981-04-10Signal generator for obtaining an acoustic signal

Publications (1)

Publication NumberPublication Date
ATE7096T1true ATE7096T1 (en)1984-04-15

Family

ID=6099671

Family Applications (1)

Application NumberTitlePriority DateFiling Date
AT81102766TATE7096T1 (en)1980-04-101981-04-10 SIGNALING DEVICES TO GENERATE AN ACOUSTIC SIGNAL.

Country Status (5)

CountryLink
EP (1)EP0038043B1 (en)
JP (1)JPS57500494A (en)
AT (1)ATE7096T1 (en)
DE (1)DE3013788C2 (en)
WO (1)WO1981002963A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE3230060C2 (en)*1981-07-311986-07-31Sumitomo Electric Industries, Ltd., Osaka Piezoelectric buzzer
JPS63314997A (en)*1987-06-181988-12-22Matsushita Electric Ind Co LtdPiezo-electric sounding body
US5881021A (en)*1997-03-101999-03-09Dreamco Enterprises Inc.Quick charge capacitor powered non-interruptible wearable personal security alarm
DE19902875C1 (en)*1999-01-252000-07-20Ideal StandardPiezoelectric sound transducer for stimulating bathtub wall to radiate sound has housing with thin-walled base that is liable to vibrate, carries piezoelectric element and faces bathtub wall
JP4203899B2 (en)*2002-06-132009-01-07オムロンヘルスケア株式会社 Electronic thermometer
JP2007028469A (en)*2005-07-212007-02-01Nec Tokin CorpAcoustic vibration generating element, manufacturing method thereof, and acoustic vibration generating apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US2635199A (en)*1948-01-081953-04-14John M WolfskillPiezoelectric crystal apparatus
BE623017A (en)*1961-09-29
US3495105A (en)*1967-07-191970-02-10Ngk Spark Plug CoThree-terminal piezoelectric resonator
US3578921A (en)*1970-01-261971-05-18Sonotone CorpMiniature multiple-diaphragm acoustic mechanoelectric transducer device
CA930211A (en)*1970-08-201973-07-17Johnson Matthey And Mallory LimitedPiezoelectric transducer and noise making device utilizing same
GB1429856A (en)*1973-03-071976-03-31Taga Electric Co LtdTransducers
US4122365A (en)*1976-01-261978-10-24Projects Unlimited, Inc.Piezoelectric buzzer device

Also Published As

Publication numberPublication date
JPS57500494A (en)1982-03-18
EP0038043A1 (en)1981-10-21
DE3013788A1 (en)1981-10-15
EP0038043B1 (en)1984-04-11
DE3013788C2 (en)1982-11-25
WO1981002963A1 (en)1981-10-15

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