NL28784C - - Google Patents
Info
- Publication number
- NL28784C NL28784C NL28784DA NL28784C NL 28784 C NL28784 C NL 28784C NL 28784D A NL28784D A NL 28784DA NL 28784 C NL28784 C NL 28784C
- 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
- H04R9/041—Centering
-
- 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
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
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 |
|---|---|---|---|
| GB2038401X | 1929-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL28784C true NL28784C (ru) |
Family
ID=10896794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL28784D NL28784C (ru) | 1929-06-20 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2038401A (ru) |
| BE (1) | BE369111A (ru) |
| FR (1) | FR692281A (ru) |
| NL (1) | NL28784C (ru) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2609463A (en) * | 1948-10-26 | 1952-09-02 | Fauthal A Hassan | Electric actuating device |
| DE3622558A1 (de) * | 1986-07-04 | 1988-01-14 | Ant Nachrichtentech | Anordnung mit membran fuer einen schallwandler |
| US4933975A (en) * | 1988-05-19 | 1990-06-12 | Electro-Voice, Inc. | Dynamic loudspeaker for producing high audio power |
| US6330340B1 (en) | 1995-12-29 | 2001-12-11 | Jl Audio, Inc. | Loudspeaker with a diaphragm having integral vent bores |
| US6243479B1 (en) | 1999-12-08 | 2001-06-05 | Lucio Proni | Loudspeaker having pole piece with integral vent bores |
| US6535613B1 (en) | 1999-12-28 | 2003-03-18 | Jl Audio, Inc. | Air flow control device for loudspeaker |
| JP2006238077A (ja) * | 2005-02-25 | 2006-09-07 | Pioneer Electronic Corp | スピーカ装置 |
| US7715584B2 (en) * | 2006-01-03 | 2010-05-11 | Jl Audio, Inc. | Loudspeaker with air deflector |
| GB2480058A (en) * | 2010-05-04 | 2011-11-09 | Tzu-Chung Chang | Inner spider or damper arrangement for a loudspeaker |
-
0
- BE BE369111D patent/BE369111A/xx unknown
- NL NL28784D patent/NL28784C/xx active
-
1930
- 1930-03-19 FR FR692281D patent/FR692281A/fr not_active Expired
- 1930-05-16 US US452856A patent/US2038401A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2038401A (en) | 1936-04-21 |
| FR692281A (fr) | 1930-11-04 |
| BE369111A (ru) |