NL28294C - - Google Patents
Info
- Publication number
- NL28294C NL28294C NL28294DA NL28294C NL 28294 C NL28294 C NL 28294C NL 28294D A NL28294D A NL 28294DA NL 28294 C NL28294 C NL 28294C
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Electromagnets (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4882/29A GB324826A (en) | 1929-02-13 | 1929-02-13 | Supporting means for acoustic diaphragms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL28294C true NL28294C (fr) |
Family
ID=9785602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL28294D NL28294C (fr) | 1929-02-13 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1831235A (fr) |
| DE (1) | DE552016C (fr) |
| FR (1) | FR685304A (fr) |
| GB (1) | GB324826A (fr) |
| NL (1) | NL28294C (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2469773A (en) * | 1934-06-04 | 1949-05-10 | Jensen Mfg Company | Loud-speaker diaphragm support member |
| GB584354A (en) * | 1944-12-08 | 1947-01-13 | Harry Claude Willson | Improvements relating to electro-dynamic reproducers or loud-speaking telephones of the moving coil type |
| DE1003265B (de) * | 1952-11-07 | 1957-02-28 | Walter Kirbach | Zentrier- und Halteteile von Lautsprechermembranen und aehnlichen akustischen Membranen |
| US4207778A (en) * | 1976-07-19 | 1980-06-17 | General Electric Company | Reinforced cross-ply composite flywheel and method for making same |
| US4102221A (en) * | 1976-07-19 | 1978-07-25 | General Electric Company | Cross-ply composite flywheel |
| US6938726B1 (en) | 2001-10-16 | 2005-09-06 | Mitek Corporation | Field rebuildable low frequency loudspeaker driver having a removable diaphragm assembly, parts kit and method for rebuilding a loudspeaker driver in the field |
-
0
- NL NL28294D patent/NL28294C/xx active
-
1929
- 1929-02-13 GB GB4882/29A patent/GB324826A/en not_active Expired
- 1929-04-06 US US353091A patent/US1831235A/en not_active Expired - Lifetime
- 1929-11-21 FR FR685304D patent/FR685304A/fr not_active Expired
- 1929-11-23 DE DEG78032D patent/DE552016C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1831235A (en) | 1931-11-10 |
| FR685304A (fr) | 1930-07-09 |
| DE552016C (de) | 1932-06-08 |
| GB324826A (en) | 1930-02-06 |