NL33150C - - Google Patents
Info
- Publication number
- NL33150C NL33150C NL33150DA NL33150C NL 33150 C NL33150 C NL 33150C NL 33150D A NL33150D A NL 33150DA NL 33150 C NL33150 C NL 33150C
- 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
- H04R7/12—Non-planar diaphragms or cones
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
-
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/22—Clamping rim of diaphragm or cone against seating
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE599805T | 1930-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL33150C true NL33150C (US07867960-20110111-C00005.png) |
Family
ID=34608816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL33150D NL33150C (US07867960-20110111-C00005.png) | 1930-09-17 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1934184A (US07867960-20110111-C00005.png) |
| DE (1) | DE599805C (US07867960-20110111-C00005.png) |
| FR (1) | FR722913A (US07867960-20110111-C00005.png) |
| NL (1) | NL33150C (US07867960-20110111-C00005.png) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2691148A (en) * | 1950-06-24 | 1954-10-05 | Rca Corp | Ultrasonic transducer |
| US3198890A (en) * | 1961-06-14 | 1965-08-03 | Rosen Alfred H | High fidelity sound reproducer |
| US4354066A (en) * | 1980-09-15 | 1982-10-12 | Necoechea Robert W | Rigid-diaphragm transducer with plural coils |
| TW510139B (en) * | 2001-01-26 | 2002-11-11 | Kirk Acoustics As | An electroacoustic transducer and a coil and a magnet circuit therefor |
-
0
- NL NL33150D patent/NL33150C/xx active
-
1930
- 1930-09-17 DE DE1930599805D patent/DE599805C/de not_active Expired
-
1931
- 1931-09-15 FR FR722913D patent/FR722913A/fr not_active Expired
- 1931-12-26 US US583297A patent/US1934184A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE599805C (de) | 1934-07-09 |
| FR722913A (fr) | 1932-03-30 |
| US1934184A (en) | 1933-11-07 |
