FR2251976A1 - Sealed electro-acoustic transducer - has membrane equalising internal and external pressures - Google Patents
Sealed electro-acoustic transducer - has membrane equalising internal and external pressuresInfo
- Publication number
- FR2251976A1 FR2251976A1 FR7437603A FR7437603A FR2251976A1 FR 2251976 A1 FR2251976 A1 FR 2251976A1 FR 7437603 A FR7437603 A FR 7437603A FR 7437603 A FR7437603 A FR 7437603A FR 2251976 A1 FR2251976 A1 FR 2251976A1
- Authority
- FR
- France
- Prior art keywords
- internal
- membrane
- external pressures
- equalising
- acoustic transducer
- 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.)
- Granted
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
- H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
-
- 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromechanical Clocks (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1616973A CH566696A5 (it) | 1973-11-16 | 1973-11-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2251976A1 true FR2251976A1 (en) | 1975-06-13 |
FR2251976B1 FR2251976B1 (it) | 1978-10-27 |
Family
ID=4414999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7437603A Granted FR2251976A1 (en) | 1973-11-16 | 1974-11-14 | Sealed electro-acoustic transducer - has membrane equalising internal and external pressures |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT325695B (it) |
CH (1) | CH566696A5 (it) |
FR (1) | FR2251976A1 (it) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428950A1 (fr) * | 1978-06-15 | 1980-01-11 | Andrieu Michel | Systeme de reproduction sonore resistant aux deflagrations |
DE19732184C1 (de) * | 1997-07-26 | 1999-01-07 | Nokia Deutschland Gmbh | Lautsprecherbox |
EP1335175A1 (en) * | 2002-02-07 | 2003-08-13 | Shoot the Moon Products II, L.L.C. | Water gun with sound effect module |
US6752238B2 (en) | 1999-10-05 | 2004-06-22 | Shoot The Moon Products 11, Llc | Water resistant audible toys with sound effects |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019002654B4 (de) | 2019-04-11 | 2023-02-16 | Paragon Gmbh & Co. Kgaa | "Lautsprecher für Kraftfahrzeuge" |
CN111822314B (zh) * | 2020-08-12 | 2024-01-09 | 湖南大学 | 一种基于气体弹簧的电磁吸力式水声换能器及控制方法 |
-
1973
- 1973-11-16 CH CH1616973A patent/CH566696A5/xx not_active IP Right Cessation
-
1974
- 1974-06-28 AT AT536274A patent/AT325695B/de not_active IP Right Cessation
- 1974-11-14 FR FR7437603A patent/FR2251976A1/fr active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428950A1 (fr) * | 1978-06-15 | 1980-01-11 | Andrieu Michel | Systeme de reproduction sonore resistant aux deflagrations |
DE19732184C1 (de) * | 1997-07-26 | 1999-01-07 | Nokia Deutschland Gmbh | Lautsprecherbox |
US6752238B2 (en) | 1999-10-05 | 2004-06-22 | Shoot The Moon Products 11, Llc | Water resistant audible toys with sound effects |
EP1335175A1 (en) * | 2002-02-07 | 2003-08-13 | Shoot the Moon Products II, L.L.C. | Water gun with sound effect module |
Also Published As
Publication number | Publication date |
---|---|
FR2251976B1 (it) | 1978-10-27 |
AT325695B (de) | 1975-11-10 |
CH566696A5 (it) | 1975-09-15 |
ATA536274A (de) | 1975-01-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES408646A1 (es) | Una disposicion de alojamiento que incluye una cubierta, para un transductor electro-acustico. | |
ES426709A1 (es) | Mejoras en los microfonos. | |
FR2251976A1 (en) | Sealed electro-acoustic transducer - has membrane equalising internal and external pressures | |
CA1024773A (en) | Differential pressure transducer | |
CA974848A (en) | Diaphragm pressure sensor | |
CA990037A (en) | Method of manufacturing a diaphragm for an acoustic transducer | |
DE3170225D1 (en) | Improvements in electroacoustic transducers | |
GB1516234A (en) | Electroacoustic signalling horns | |
FR2260916A1 (en) | Loudspeaker directional enclosure - has diaphragm forming two separate parts for low and high frequency sounds | |
FR2349253A1 (fr) | Transducteur electro-acoustique | |
CA1015979A (en) | Pressure sensor apparatus and transducer therefor | |
JPS5414722A (en) | Acoustic diaphragm | |
GB1363315A (en) | Telephone instruments | |
NL7613904A (en) | Transducer with electromagnetic converter for miniature hearing aid - has chamber with partition partly of foil with hole for push rod and damping | |
JPS5573199A (en) | Electroacoustic transducer | |
GB1268654A (en) | Electroacoustic transducers | |
GB957384A (en) | Improvements in or relating to carbon microphone capsules and more particularly to carbon microphone capsules having a carbon chamber protected against dampness | |
GB1348734A (en) | Elecgro-acoustical transducers | |
GB1124412A (en) | Waterproof radio receiver | |
AU491309B2 (en) | Pressure compensation in electroacoustic transducers | |
GB1387535A (en) | Burstproof pressure-measuring instrument | |
GB1219919A (en) | Electro-acoustic transducers | |
JPS5379952A (en) | Method of production of membrane of diaphragm valve | |
JPS5441096A (en) | Miniature electromagnetic buzzer of atmospheric pressure defference countermeasure type | |
JPS5349424A (en) | Dome speaker |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |