PT72192B - Process for the manufacture of membranes or cones of high fidelity loudspeaker - Google Patents
Process for the manufacture of membranes or cones of high fidelity loudspeakerInfo
- Publication number
- PT72192B PT72192B PT72192A PT7219280A PT72192B PT 72192 B PT72192 B PT 72192B PT 72192 A PT72192 A PT 72192A PT 7219280 A PT7219280 A PT 7219280A PT 72192 B PT72192 B PT 72192B
- Authority
- PT
- Portugal
- Prior art keywords
- cones
- membranes
- manufacture
- high fidelity
- fidelity loudspeaker
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/027—Diaphragms comprising metallic materials
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Manufacturing & Machinery (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES486914A ES486914A1 (es) | 1979-12-14 | 1979-12-14 | Nuevo procedimiento de fabricacion de membranas o conos paraaltavoces de alta fidelidad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PT72192A PT72192A (en) | 1981-01-01 |
| PT72192B true PT72192B (en) | 1982-01-05 |
Family
ID=8479462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT72192A PT72192B (en) | 1979-12-14 | 1980-12-12 | Process for the manufacture of membranes or cones of high fidelity loudspeaker |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE8032983U1 (ca) |
| ES (1) | ES486914A1 (ca) |
| FR (1) | FR2471719A3 (ca) |
| GB (1) | GB2064999A (ca) |
| IT (1) | IT1129940B (ca) |
| PT (1) | PT72192B (ca) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7529382B2 (en) * | 2006-07-17 | 2009-05-05 | Burton A. Babb | High fidelity loudspeaker |
-
1979
- 1979-12-14 ES ES486914A patent/ES486914A1/es not_active Expired
-
1980
- 1980-12-05 FR FR8026153A patent/FR2471719A3/fr active Granted
- 1980-12-09 IT IT68872/80A patent/IT1129940B/it active
- 1980-12-11 DE DE19808032983U patent/DE8032983U1/de not_active Expired
- 1980-12-12 PT PT72192A patent/PT72192B/pt unknown
- 1980-12-12 GB GB8039918A patent/GB2064999A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2471719A3 (fr) | 1981-06-19 |
| GB2064999A (en) | 1981-06-24 |
| IT8068872A0 (it) | 1980-12-09 |
| DE8032983U1 (de) | 1981-04-02 |
| PT72192A (en) | 1981-01-01 |
| IT1129940B (it) | 1986-06-11 |
| ES486914A1 (es) | 1980-07-16 |
| FR2471719B3 (ca) | 1981-10-16 |
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