NL56193C - - Google Patents
Info
- Publication number
- NL56193C NL56193C NL56193DA NL56193C NL 56193 C NL56193 C NL 56193C NL 56193D A NL56193D A NL 56193DA NL 56193 C NL56193 C NL 56193C
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- 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
- 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)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE208381X | 1938-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL56193C true NL56193C (en) |
Family
ID=5794205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL56193D NL56193C (en) | 1938-01-24 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2221068A (en) |
| BE (1) | BE432333A (en) |
| CH (1) | CH208381A (en) |
| FR (1) | FR849298A (en) |
| GB (1) | GB511920A (en) |
| NL (1) | NL56193C (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE915250C (en) * | 1948-10-02 | 1954-07-19 | Licentia Gmbh | Dry rectifiers, in particular for measuring purposes |
| DE854054C (en) * | 1950-02-22 | 1952-10-30 | Max Grundig | Drive and centering system for dynamic loudspeakers, microphones and relays made of thermoplastic material |
| DE892145C (en) * | 1950-06-06 | 1953-10-05 | Helmut Hintze | Centering membrane, especially for centering acoustic transducers |
| US3014996A (en) * | 1956-05-18 | 1961-12-26 | Swanson Carl Axel | Speaker construction |
| US2922850A (en) * | 1957-01-28 | 1960-01-26 | Gen Electric | Loud-speaker |
| US3032615A (en) * | 1960-02-02 | 1962-05-01 | Rca Corp | Acoustic devices |
| US3484730A (en) * | 1968-03-07 | 1969-12-16 | Us Navy | Tunable high frequency electrodynamic driver |
| US5008945A (en) * | 1988-05-23 | 1991-04-16 | Pioneer Electronic Corp. | Water-proof speaker unit |
| KR970007296B1 (en) * | 1989-04-19 | 1997-05-07 | 가부시끼가이샤 켄우드 | Wiring structure of loudspeaker |
| US5249236A (en) * | 1989-12-01 | 1993-09-28 | Kabushiki Kaisha Kenwood | Wiring structure of loudspeaker |
| DE69530685T2 (en) | 1994-03-29 | 2004-04-22 | Harman International Industries, Inc., Northridge | METHOD FOR PRODUCING A SPEAKER DAMPER |
| DE9414836U1 (en) * | 1994-09-13 | 1994-11-03 | Blaupunkt-Werke Gmbh, 31139 Hildesheim | Dynamic loudspeaker with a centering membrane |
| US20050111689A1 (en) * | 2003-11-21 | 2005-05-26 | True Technologies Inc. | Loudspeaker with assembly and performance improvements |
| JP2005341294A (en) * | 2004-05-27 | 2005-12-08 | Pioneer Electronic Corp | Speaker apparatus, and its manufacturing method |
| US7200240B2 (en) * | 2004-07-02 | 2007-04-03 | Hiroshi Ohara | Loudspeaker spider with enhanced structure |
| US7379558B2 (en) * | 2004-12-16 | 2008-05-27 | Jl Audio, Inc. | Loudspeaker with integrated spider standoff ring |
-
0
- NL NL56193D patent/NL56193C/xx active
- BE BE432333D patent/BE432333A/xx unknown
-
1938
- 1938-08-04 US US223007A patent/US2221068A/en not_active Expired - Lifetime
-
1939
- 1939-01-21 GB GB2153/39A patent/GB511920A/en not_active Expired
- 1939-01-23 FR FR849298D patent/FR849298A/en not_active Expired
- 1939-01-23 CH CH208381D patent/CH208381A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR849298A (en) | 1939-11-17 |
| US2221068A (en) | 1940-11-12 |
| BE432333A (en) | |
| GB511920A (en) | 1939-08-25 |
| CH208381A (en) | 1940-01-31 |