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Info

Publication number
DE3437488A1
DE3437488A1 DE19843437488 DE3437488A DE3437488A1 DE 3437488 A1 DE3437488 A1 DE 3437488A1 DE 19843437488 DE19843437488 DE 19843437488 DE 3437488 A DE3437488 A DE 3437488A DE 3437488 A1 DE3437488 A1 DE 3437488A1
Authority
DE
Grant status
Application
Patent type
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
DE19843437488
Other languages
English (en)
Other versions
DE3437488C2 (de )
Inventor
Rainer Dr Ing Riedlinger
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.)
Wolf Richard GmbH
Original Assignee
Wolf Richard GmbH
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

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/04Acoustic filters ; Acoustic resonators
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00Electrical generator or motor structure
    • Y10S310/80Piezoelectric polymers, e.g. PVDF
DE19843437488 1984-10-12 1984-10-12 Expired DE3437488C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843437488 DE3437488C2 (de) 1984-10-12 1984-10-12

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19843437488 DE3437488C2 (de) 1984-10-12 1984-10-12
US06783143 US4618796A (en) 1984-10-12 1985-10-02 Acoustic diode
FR8515137A FR2571635B1 (fr) 1984-10-12 1985-10-11 Emetteur acoustique

Publications (2)

Publication Number Publication Date
DE3437488A1 true true DE3437488A1 (de) 1986-04-17
DE3437488C2 DE3437488C2 (de) 1988-07-28

Family

ID=6247764

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843437488 Expired DE3437488C2 (de) 1984-10-12 1984-10-12

Country Status (3)

Country Link
US (1) US4618796A (de)
DE (1) DE3437488C2 (de)
FR (1) FR2571635B1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE33590E (en) * 1983-12-14 1991-05-21 Edap International, S.A. Method for examining, localizing and treating with ultrasound
US5150712A (en) * 1983-12-14 1992-09-29 Edap International, S.A. Apparatus for examining and localizing tumors using ultra sounds, comprising a device for localized hyperthermia treatment
US5143073A (en) * 1983-12-14 1992-09-01 Edap International, S.A. Wave apparatus system
FR2614722B1 (fr) * 1987-04-28 1992-04-17 Dory Jacques Filtre acoustique permettant de supprimer ou d'attenuer les alternances negatives d'une onde elastique et generateur d'ondes elastiques comportant un tel filtre
FR2614747B1 (fr) * 1987-04-28 1989-07-28 Dory Jacques Generateur d'impulsions elastiques ayant une forme d'onde predeterminee desiree et son application au traitement ou au diagnostic medical
FR2620294B1 (fr) * 1987-09-07 1990-01-19 Technomed Int Sa Dispositif piezoelectrique a ondes negatives reduites, et utilisation de ce dispositif pour la lithotritie extra-corporelle ou pour la destruction de tissus particuliers
DE3806532C2 (de) * 1988-03-01 1990-12-06 Richard Wolf Gmbh, 7134 Knittlingen, De
US5209221A (en) * 1988-03-01 1993-05-11 Richard Wolf Gmbh Ultrasonic treatment of pathological tissue
US5065761A (en) * 1989-07-12 1991-11-19 Diasonics, Inc. Lithotripsy system
US4945898A (en) * 1989-07-12 1990-08-07 Diasonics, Inc. Power supply
DE3932959C1 (de) * 1989-10-03 1991-04-11 Richard Wolf Gmbh, 7134 Knittlingen, De
EP0591368B1 (de) * 1991-06-25 1999-01-27 Agl Consultancy Pty. Ltd. Modenunterdrückung bei der durchflussmessung
DE19733233C1 (de) * 1997-08-01 1998-09-17 Wolf Gmbh Richard Elektroakustischer Wandler
US6215231B1 (en) * 1998-05-04 2001-04-10 The Penn State Research Foundation Hollow sphere transducers
CN101715320B (zh) * 2007-01-10 2012-01-25 周宇峰 冲击波碎石系统
CN102175300B (zh) * 2011-01-26 2012-09-05 南京大学 一种声二极管及检测声二极管的系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004424A (en) * 1957-10-11 1961-10-17 Sperry Prod Inc Tandem piezoelectric transducers
US3036231A (en) * 1958-07-24 1962-05-22 Sperry Prod Inc High resolution piezoelectric transducer
DE1967130C2 (de) * 1968-01-25 1982-04-01 Pioneer Electronic Corp., Tokyo, Jp
JPS5221364B2 (de) * 1971-11-04 1977-06-10
GB1515287A (en) * 1974-05-30 1978-06-21 Plessey Co Ltd Piezoelectric transducers
US3975599A (en) * 1975-09-17 1976-08-17 United States Surgical Corporation Directional/non-directional hearing aid
GB1593271A (en) * 1976-09-21 1981-07-15 Standard Telephones Cables Ltd Electro-acoustic transducers
US4211950A (en) * 1978-09-13 1980-07-08 Harris Corporation Arrangement for coupling RF energy into piezoelectric transducers
US4196792A (en) * 1978-11-09 1980-04-08 Grieves J Philip Laminar flow vented speaker enclosure
US4453044A (en) * 1982-02-09 1984-06-05 Lectret S.A. Electro-acoustic transducer with plural piezoelectric film
FR2521382A2 (fr) * 1982-02-09 1983-08-12 Lectret Sa Transducteur acoustique
US4427912A (en) * 1982-05-13 1984-01-24 Ausonics Pty. Ltd. Ultrasound transducer for enhancing signal reception in ultrasound equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
In Betracht gezogene ältere Anmeldung: DE 33 19 871A1 *

Also Published As

Publication number Publication date Type
US4618796A (en) 1986-10-21 grant
FR2571635B1 (fr) 1988-12-02 grant
FR2571635A1 (fr) 1986-04-18 application
DE3437488C2 (de) 1988-07-28 grant

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: G10K 11/18

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee