SE379914B - - Google Patents
Info
- Publication number
- SE379914B SE379914B SE7211147A SE1114772A SE379914B SE 379914 B SE379914 B SE 379914B SE 7211147 A SE7211147 A SE 7211147A SE 1114772 A SE1114772 A SE 1114772A SE 379914 B SE379914 B SE 379914B
- Authority
- SE
- Sweden
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
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/127—Non-planar diaphragms or cones dome-shaped
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/09—Forming piezoelectric or electrostrictive materials
- H10N30/098—Forming organic materials
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7112001A NL7112001A (en) | 1971-09-01 | 1971-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE379914B true SE379914B (en) | 1975-10-20 |
Family
ID=19813920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7211147A SE379914B (en) | 1971-09-01 | 1972-08-29 |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5410854B2 (en) |
| AT (1) | AT318034B (en) |
| AU (1) | AU471029B2 (en) |
| CA (1) | CA990037A (en) |
| CH (1) | CH540768A (en) |
| DE (1) | DE2239743C3 (en) |
| ES (1) | ES406184A1 (en) |
| FR (1) | FR2151047B1 (en) |
| GB (1) | GB1381376A (en) |
| IT (1) | IT964359B (en) |
| NL (1) | NL7112001A (en) |
| SE (1) | SE379914B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2941644C2 (en) * | 1978-10-17 | 1982-11-11 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | Loudspeaker cone and process for their manufacture |
| JPS5572391U (en) * | 1978-11-11 | 1980-05-19 | ||
| DE2929432C2 (en) * | 1979-07-20 | 1981-08-13 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Method of manufacturing an electrodynamic transducer |
| FR2477823A1 (en) * | 1980-03-04 | 1981-09-11 | Thomson Csf | METHOD FOR MANUFACTURING ELECTROMECHANICAL TRANSDUCERS USING AT LEAST ONE POLYMER FILM AND DEVICE FOR CARRYING OUT SAID METHOD |
| FR2522241A1 (en) * | 1982-02-22 | 1983-08-26 | Thomson Csf | METHOD FOR MANUFACTURING PIEZOELECTRIC POLYMER TRANSDUCERS BY FORGING |
| DE3339101A1 (en) * | 1983-10-28 | 1984-08-23 | Martin 6600 Saarbrücken Hauck | Diaphragm for a loudspeaker |
| US5388976A (en) * | 1992-02-27 | 1995-02-14 | Friedrich Theyson Gmbh | Wall thickness measuring device with calibration device |
| JP2882969B2 (en) * | 1993-04-09 | 1999-04-19 | 株式会社ケンウッド | Film molding method and molding apparatus |
| GB9906176D0 (en) | 1999-03-17 | 1999-05-12 | Unilever Plc | Process for producing a water soluble package |
| GB9906169D0 (en) | 1999-03-17 | 1999-05-12 | Unilever Plc | A process for producing a water soluble package |
| GB9906171D0 (en) | 1999-03-17 | 1999-05-12 | Unilever Plc | A process for producing a water soluble package |
-
1971
- 1971-09-01 NL NL7112001A patent/NL7112001A/xx unknown
-
1972
- 1972-08-12 DE DE2239743A patent/DE2239743C3/en not_active Expired
- 1972-08-29 JP JP8589772A patent/JPS5410854B2/ja not_active Expired
- 1972-08-29 GB GB3999572A patent/GB1381376A/en not_active Expired
- 1972-08-29 CH CH1272672A patent/CH540768A/en not_active IP Right Cessation
- 1972-08-29 SE SE7211147A patent/SE379914B/xx unknown
- 1972-08-29 IT IT28614/72A patent/IT964359B/en active
- 1972-08-29 ES ES406184A patent/ES406184A1/en not_active Expired
- 1972-08-29 AU AU46071/72A patent/AU471029B2/en not_active Expired
- 1972-08-29 CA CA150,430A patent/CA990037A/en not_active Expired
- 1972-08-29 AT AT743172A patent/AT318034B/en not_active IP Right Cessation
- 1972-08-31 FR FR7230958A patent/FR2151047B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2239743B2 (en) | 1979-05-17 |
| JPS5410854B2 (en) | 1979-05-10 |
| FR2151047A1 (en) | 1973-04-13 |
| FR2151047B1 (en) | 1978-12-29 |
| IT964359B (en) | 1974-01-21 |
| AU4607172A (en) | 1974-03-07 |
| AT318034B (en) | 1974-09-25 |
| DE2239743C3 (en) | 1980-01-24 |
| AU471029B2 (en) | 1976-04-08 |
| CH540768A (en) | 1973-08-31 |
| ES406184A1 (en) | 1976-01-16 |
| JPS4833816A (en) | 1973-05-14 |
| DE2239743A1 (en) | 1973-03-08 |
| NL7112001A (en) | 1973-03-05 |
| CA990037A (en) | 1976-06-01 |
| GB1381376A (en) | 1975-01-22 |