DE2966004D1 - Pneumatic speaker with constant fluid flow - Google Patents

Pneumatic speaker with constant fluid flow

Info

Publication number
DE2966004D1
DE2966004D1 DE7979400903T DE2966004T DE2966004D1 DE 2966004 D1 DE2966004 D1 DE 2966004D1 DE 7979400903 T DE7979400903 T DE 7979400903T DE 2966004 T DE2966004 T DE 2966004T DE 2966004 D1 DE2966004 D1 DE 2966004D1
Authority
DE
Germany
Prior art keywords
fluid flow
constant fluid
speaker
pneumatic
pneumatic speaker
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
DE7979400903T
Other languages
German (de)
Inventor
Jean Francois Louis Julia
Louis Duthion
Cyrille Francois Pavlin
Pierre Jean Alphonse Facon
Jacques Souquet
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie SA
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 Bertin et Cie SA filed Critical Bertin et Cie SA
Application granted granted Critical
Publication of DE2966004D1 publication Critical patent/DE2966004D1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/42—Combinations of transducers with fluid-pressure or other non-electrical amplifying means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods 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
    • G10K11/08—Non-electric sound-amplifying devices, e.g. non-electric megaphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Amplifiers (AREA)
DE7979400903T 1978-11-24 1979-11-22 Pneumatic speaker with constant fluid flow Expired DE2966004D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7833178A FR2442565A1 (en) 1978-11-24 1978-11-24 METHOD OF FLUID ACOUSTIC AMPLIFICATION AND PNEUMATIC SPEAKER FOR IMPLEMENTING THE SAME

Publications (1)

Publication Number Publication Date
DE2966004D1 true DE2966004D1 (en) 1983-09-01

Family

ID=9215281

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979400903T Expired DE2966004D1 (en) 1978-11-24 1979-11-22 Pneumatic speaker with constant fluid flow

Country Status (4)

Country Link
EP (1) EP0012070B1 (en)
JP (1) JPS55102293U (en)
DE (1) DE2966004D1 (en)
FR (1) FR2442565A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE428346B (en) * 1980-10-17 1983-06-27 Kockumation Ab THE PRESSURE GAS DRIVE SOUND TRANSMITTER WITH THE RESONANCE HORN AND WITH THE BODY FOR CONTROL OF THE PRESSURE OF THE PRESSURE GAS THROUGH THE RESONANCE HORN
FR2572615B1 (en) * 1984-10-29 1988-10-14 Bertin & Cie PNEUMATIC SPEAKER WITH CONTINUOUS FLOW PRESSURE FLOW
FR2609827B1 (en) * 1987-01-16 1991-04-12 Electricite De France METHOD AND DEVICE FOR REDUCING RADIANT DOMINANT HARMONIC COMPONENT NOISE BY AN APPARATUS WALL
JP2936562B2 (en) * 1988-02-15 1999-08-23 ヤマハ株式会社 Electric control type air flow generator
FR2637148B1 (en) * 1988-09-29 1991-06-07 Bertin & Cie ELECTRODYNAMIC-FLUIDIC TRANSDUCER EQUIPMENT FOR PNEUMATIC SPEAKER
US5117462A (en) * 1991-03-20 1992-05-26 Jbl Incorporated Phasing plug for compression driver
DE19814798C2 (en) * 1998-04-02 2000-10-12 Lfk Gmbh Device for generating infrasound
FR2807277B1 (en) * 2000-04-04 2002-06-28 Bertin Technologies Sa PNEUMATIC SPEAKER
CN101282590B (en) * 2007-04-06 2011-08-17 中国科学院声学研究所 High-efficiency complete-modulation pneumatic loudspeaker
WO2015041623A1 (en) 2013-09-20 2015-03-26 Dushko Yuriy Viktorovich The method of sound oscillations generation and the device for its implementation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR371113A (en) * 1906-11-05 1907-02-27 "L'aspirator" Sound amplifier for megaphone, acoustic tubes, telephones, etc.
US1904156A (en) * 1931-08-06 1933-04-18 Bell Telephone Labor Inc Pneumatic sound reproducer
US2435534A (en) * 1942-07-25 1948-02-03 Eaves Sound Projectors Inc Electropneumatic sound reproducer

Also Published As

Publication number Publication date
FR2442565B1 (en) 1982-11-05
FR2442565A1 (en) 1980-06-20
EP0012070A1 (en) 1980-06-11
EP0012070B1 (en) 1983-07-27
JPS55102293U (en) 1980-07-16

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee