[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

FR2109894A5 - - Google Patents

Info

Publication number
FR2109894A5
FR2109894A5 FR7135218A FR7135218A FR2109894A5 FR 2109894 A5 FR2109894 A5 FR 2109894A5 FR 7135218 A FR7135218 A FR 7135218A FR 7135218 A FR7135218 A FR 7135218A FR 2109894 A5 FR2109894 A5 FR 2109894A5
Authority
FR
France
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
FR7135218A
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
Application granted granted Critical
Publication of FR2109894A5 publication Critical patent/FR2109894A5/fr
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)
FR7135218A 1970-10-01 1971-09-30 Expired FR2109894A5 (fr)

Applications Claiming Priority (4)

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

Publications (1)

Publication Number Publication Date
FR2109894A5 true FR2109894A5 (fr) 1972-05-26

Family

ID=27468161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7135218A Expired FR2109894A5 (fr) 1970-10-01 1971-09-30

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2175812A1 (fr) * 1972-01-30 1973-10-26 Philips Nv

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970879A (en) * 1971-12-29 1976-07-20 Sumitomo Electric Industries, Ltd. Piezoelectric acoustic device
US4172253A (en) * 1972-04-19 1979-10-23 Hermans Albert L Controlled wave pattern ultrasonic burglar alarm
JPS4963860U (fr) * 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
DE3135096A1 (de) * 1981-02-20 1982-09-09 Apparatebau Wilhelm Heibl Gmbh, 8671 Selbitz Schallgeber mit piezowandler
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
US5070319A (en) * 1990-06-22 1991-12-03 Ranco Incorporated Of Delaware Door ajar alarm for refrigeration unit
US5063372A (en) * 1990-06-22 1991-11-05 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
US20060126885A1 (en) * 2004-12-15 2006-06-15 Christopher Combest Sound transducer for solid surfaces
US7386137B2 (en) 2004-12-15 2008-06-10 Multi Service Corporation Sound transducer for solid surfaces
NZ741473A (en) 2015-09-14 2024-07-05 Wing Acoustics Ltd Improvements in or relating to audio transducers
WO2018167538A1 (fr) 2017-03-15 2018-09-20 Wing Acoustics Limited Améliorations apportées ou se rapportant à des systèmes audio
WO2018172944A1 (fr) 2017-03-22 2018-09-27 Wing Acoustics Limited Systèmes, procédés et dispositifs se rapportant à des charnières et à des transducteurs audio

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
US3638052A (en) * 1969-09-22 1972-01-25 Dynamics Corp America Electroacoustic transducers of the bilaminar flexural vibrating type
US3578995A (en) * 1969-09-22 1971-05-18 Dynamics Corp Massa Div Electroacoustic transducers of the bilaminar flexural vibrating type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2175812A1 (fr) * 1972-01-30 1973-10-26 Philips Nv

Also Published As

Publication number Publication date
US3761956A (en) 1973-09-25
DE2148704B2 (de) 1973-09-13
CA928997A (en) 1973-06-26
GB1330750A (en) 1973-09-19
DE2148704C3 (de) 1974-04-04
DE2148704A1 (de) 1972-04-06
AU3362471A (en) 1973-03-22

Similar Documents

Publication Publication Date Title
AR204384A1 (fr)
ATA96471A (fr)
AU2044470A (fr)
AU1146470A (fr)
AU1473870A (fr)
AU2017870A (fr)
AU2130570A (fr)
AU2085370A (fr)
AU1833270A (fr)
AU1716970A (fr)
AU1326870A (fr)
AU1517670A (fr)
AU1336970A (fr)
AU1603270A (fr)
AU1879170A (fr)
AU1277070A (fr)
AU1343870A (fr)
AU1247570A (fr)
AU2144270A (fr)
AU2131570A (fr)
AU2130770A (fr)
AU1235770A (fr)
AU1581370A (fr)
AU1591370A (fr)
AU1189670A (fr)

Legal Events

Date Code Title Description
ST Notification of lapse