NL281021A - - Google Patents
Info
- Publication number
- NL281021A NL281021A NL281021DA NL281021A NL 281021 A NL281021 A NL 281021A NL 281021D A NL281021D A NL 281021DA NL 281021 A NL281021 A NL 281021A
- Authority
- NL
- Netherlands
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
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
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- 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
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
- H04R2307/023—Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB26143/61A GB1002765A (en) | 1961-07-19 | 1961-07-19 | Improvements in and relating to electro-acoustic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL281021A true NL281021A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=10239074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL281021D NL281021A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1961-07-19 |
Country Status (4)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2282203A1 (fr) * | 1974-08-12 | 1976-03-12 | Rehde Weber | Haut-parleur |
| JPS5282374U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1975-12-16 | 1977-06-20 | ||
| TW200746868A (en) * | 2006-02-24 | 2007-12-16 | Yamaha Corp | Condenser microphone |
| US8175321B2 (en) * | 2007-01-12 | 2012-05-08 | Samson Technologies Corporation | Speaker motor and speaker |
| USD783577S1 (en) * | 2015-09-16 | 2017-04-11 | Stillwater Designs And Audio, Inc. | Subwoofer |
| DK178943B1 (en) * | 2015-11-03 | 2017-06-19 | Fibona Acoustics Aps | Loudspeaker membrane and low-profile loudspeaker |
| EP3166333A1 (en) | 2015-11-03 | 2017-05-10 | Fibona Acoustics ApS | Loudspeaker membrane and low-profile loudspeaker |
| JP1602130S (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 2017-08-08 | 2018-04-16 | ||
| USD881846S1 (en) * | 2017-12-06 | 2020-04-21 | Tymphany Acoustic Technology (Huizhou) Co., Ltd. | Vibration diaphragm for loudspeaker |
| USD966235S1 (en) * | 2019-08-23 | 2022-10-11 | Tymphany Acoustic Technology Limited | Waveguide |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1918422A (en) * | 1926-06-22 | 1933-07-18 | United Res Corp | Sound-reproducing device |
| US1832608A (en) * | 1930-11-12 | 1931-11-17 | Alexander I Abrahams | Diaphragm for acoustic devices |
| US1990066A (en) * | 1932-11-15 | 1935-02-05 | Emi Ltd | Diaphragm for acoustic devices |
| DE900830C (de) * | 1934-12-03 | 1954-01-04 | Tobis Tonbild Syndikat G M B H | Elektrostatisches Mikrophon mit gespannter und mehrfach unterstuetzter Membran |
| GB469445A (en) * | 1936-01-21 | 1937-07-21 | Hawley Products Ltd | Improvements in cones for loudspeakers |
| FR831589A (fr) * | 1937-01-07 | 1938-09-08 | Telefunken Gmbh | Perfectionnements aux membranes métalliques pour dispositifs acoustiques |
| DE677210C (de) * | 1937-01-08 | 1939-06-21 | Telefunken Gmbh | Formmembran aus Metall |
| GB596869A (en) * | 1945-02-20 | 1948-01-13 | Athol Ernest Neville Lawrance | Improvements in or relating to acoustical diaphragms |
| US2531634A (en) * | 1945-01-11 | 1950-11-28 | Athol E N Lawrance | Acoustical diaphragm with stiffening means |
| US2663023A (en) * | 1949-07-06 | 1953-12-22 | Lawrence R Thorpe | Knot form |
| DE835757C (de) * | 1949-10-26 | 1952-04-03 | Klangfilm G M B H | Kalottenmembran fuer Trichterlautsprecher |
| US2869266A (en) * | 1954-10-04 | 1959-01-20 | Turco Products Inc | Method for removing metal from the surface of a metal object |
| US3075895A (en) * | 1960-02-15 | 1963-01-29 | Gen Dev Corp | Method of preparing plates for electromechanical engraving |
-
0
- NL NL281021D patent/NL281021A/xx unknown
-
1961
- 1961-07-19 GB GB26143/61A patent/GB1002765A/en not_active Expired
-
1962
- 1962-07-09 US US208283A patent/US3152661A/en not_active Expired - Lifetime
- 1962-07-18 DE DEC27485A patent/DE1224786B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1002765A (en) | 1965-08-25 |
| DE1224786B (de) | 1966-09-15 |
| US3152661A (en) | 1964-10-13 |