GB1330750A - Sound generating device - Google Patents

Sound generating device

Info

Publication number
GB1330750A
GB1330750A GB4439971A GB4439971A GB1330750A GB 1330750 A GB1330750 A GB 1330750A GB 4439971 A GB4439971 A GB 4439971A GB 4439971 A GB4439971 A GB 4439971A GB 1330750 A GB1330750 A GB 1330750A
Authority
GB
United Kingdom
Prior art keywords
node
diaphragm
circles
circle
concentric
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.)
Expired
Application number
GB4439971A
Other languages
English (en)
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.)
Nittan Co Ltd
Original Assignee
Nittan Co Ltd
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 claimed from JP9693570U external-priority patent/JPS5417377Y1/ja
Priority claimed from JP45093944A external-priority patent/JPS5035794B1/ja
Application filed by Nittan Co Ltd filed Critical Nittan Co Ltd
Publication of GB1330750A publication Critical patent/GB1330750A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
GB4439971A 1970-10-01 1971-09-23 Sound generating device Expired GB1330750A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP9693570U JPS5417377Y1 (enrdf_load_stackoverflow) 1970-10-01 1970-10-01
JP9693470 1970-10-01
JP9693670 1970-10-01
JP45093944A JPS5035794B1 (enrdf_load_stackoverflow) 1970-10-27 1970-10-27

Publications (1)

Publication Number Publication Date
GB1330750A true GB1330750A (en) 1973-09-19

Family

ID=27468161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4439971A Expired GB1330750A (en) 1970-10-01 1971-09-23 Sound generating device

Country Status (5)

Country Link
US (1) US3761956A (enrdf_load_stackoverflow)
CA (1) CA928997A (enrdf_load_stackoverflow)
DE (1) DE2148704C3 (enrdf_load_stackoverflow)
FR (1) FR2109894A5 (enrdf_load_stackoverflow)
GB (1) GB1330750A (enrdf_load_stackoverflow)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1402290A (en) * 1971-12-29 1975-08-06 Sumitomo Electric Industries Piezo-electric acoustic device
GB1370164A (en) * 1972-01-30 1974-10-16 Mullard Ltd Piezoelectric transducer
US4172253A (en) * 1972-04-19 1979-10-23 Hermans Albert L Controlled wave pattern ultrasonic burglar alarm
JPS4963860U (enrdf_load_stackoverflow) * 1972-06-26 1974-06-04
US3872470A (en) * 1973-04-18 1975-03-18 Airco Inc Audible signal generating apparatus having selectively controlled audible output
US3873866A (en) * 1973-11-05 1975-03-25 Sontrix Piezoelectric transducer assembly and method for generating an umbrella shaped radiation pattern
US3921016A (en) * 1973-12-12 1975-11-18 Proctor & Assoc Co Sonic signal generator and housing
US3890513A (en) * 1974-02-14 1975-06-17 Systron Donner Corp Acoustic transducer
US4228379A (en) * 1978-08-28 1980-10-14 American District Telegraph Company Diaphragm type piezoelectric electroacoustic transducer
US4430529A (en) 1980-12-24 1984-02-07 Murata Manufacturing Co., Ltd. Piezoelectric loudspeaker
DE3135096A1 (de) * 1981-02-20 1982-09-09 Apparatebau Wilhelm Heibl Gmbh, 8671 Selbitz Schallgeber mit piezowandler
US4429247A (en) 1982-01-28 1984-01-31 Amp Incorporated Piezoelectric transducer supporting and contacting means
DE3232177A1 (de) * 1982-08-30 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Piezoelektrischer wandler
JPS60190100A (ja) * 1984-03-09 1985-09-27 Murata Mfg Co Ltd 圧電スピ−カ
FR2583115B1 (fr) * 1985-06-10 1989-03-10 Centre Techn Ind Mecanique Transducteur electrofluidique du type buse/palette et servovalve hydraulique equipee d'un tel transducteur
GB2234110B (en) * 1989-05-31 1993-04-21 Seikosha Kk Piezo-electric transducer
US5063372A (en) * 1990-06-22 1991-11-05 Ranco Incorporated Of Delaware Door ajar alarm for refrigeration unit
US5070319A (en) * 1990-06-22 1991-12-03 Ranco Incorporated Of Delaware Door ajar alarm for refrigeration unit
US5317305A (en) * 1992-01-30 1994-05-31 Campman James P Personal alarm device with vibrating accelerometer motion detector and planar piezoelectric hi-level sound generator
US5363452A (en) * 1992-05-19 1994-11-08 Shure Brothers, Inc. Microphone for use in a vibrating environment
JP3324593B2 (ja) * 1999-10-28 2002-09-17 株式会社村田製作所 超音波振動装置
US7386137B2 (en) 2004-12-15 2008-06-10 Multi Service Corporation Sound transducer for solid surfaces
US20060126885A1 (en) * 2004-12-15 2006-06-15 Christopher Combest Sound transducer for solid surfaces
CN118354259A (zh) 2015-09-14 2024-07-16 翼声有限公司 音频转换器中或与其相关的改进
WO2018167538A1 (en) 2017-03-15 2018-09-20 Wing Acoustics Limited Improvements in or relating to audio systems
WO2018172944A1 (en) 2017-03-22 2018-09-27 Wing Acoustics Limited Systems methods and devices relating to hinges and audio transducers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967957A (en) * 1957-09-17 1961-01-10 Massa Frank Electroacoustic transducer
US3166730A (en) * 1959-09-29 1965-01-19 Jr James R Brown Annular electrostrictive transducer
US3271596A (en) * 1963-11-12 1966-09-06 Boeing Co Electromechanical transducers
US3331970A (en) * 1964-09-29 1967-07-18 Honeywell Inc Sonic transducer
US3518460A (en) * 1968-10-30 1970-06-30 Euphonics Corp Ultrasonic transducer employing suspended piezoelectric plate
US3578995A (en) * 1969-09-22 1971-05-18 Dynamics Corp Massa Div Electroacoustic transducers of the bilaminar flexural vibrating type
US3638052A (en) * 1969-09-22 1972-01-25 Dynamics Corp America Electroacoustic transducers of the bilaminar flexural vibrating type

Also Published As

Publication number Publication date
CA928997A (en) 1973-06-26
DE2148704B2 (de) 1973-09-13
FR2109894A5 (enrdf_load_stackoverflow) 1972-05-26
DE2148704A1 (de) 1972-04-06
DE2148704C3 (de) 1974-04-04
US3761956A (en) 1973-09-25
AU3362471A (en) 1973-03-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee