BE335673A - - Google Patents
Info
- Publication number
- BE335673A BE335673A BE335673DA BE335673A BE 335673 A BE335673 A BE 335673A BE 335673D A BE335673D A BE 335673DA BE 335673 A BE335673 A BE 335673A
- Authority
- BE
- Belgium
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
- H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1722007X | 1925-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE335673A true BE335673A (da) |
Family
ID=10889181
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE335673D BE335673A (da) | 1925-05-11 | ||
| BE335672D BE335672A (da) | 1925-05-11 | ||
| BE335674D BE335674A (da) | 1925-05-11 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE335672D BE335672A (da) | 1925-05-11 | ||
| BE335674D BE335674A (da) | 1925-05-11 |
Country Status (5)
| Country | Link |
|---|---|
| US (3) | US1722008A (da) |
| BE (3) | BE335674A (da) |
| DE (2) | DE463897C (da) |
| FR (3) | FR613216A (da) |
| GB (3) | GB256677A (da) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943412C (de) * | 1951-06-13 | 1956-05-17 | Elbau Elektrotechnik Aappbau | Schutzkoerper fuer Schallstrahler |
| DE949406C (de) * | 1953-06-07 | 1956-09-20 | Wilhelm Silberkuhl Dipl Ing | Tonschrank mit mehreren Lautsprechern, durch die Resonatoren angeregt werden |
| US3015366A (en) * | 1956-12-14 | 1962-01-02 | George M Bishop | Speaker system |
-
0
- BE BE335673D patent/BE335673A/xx unknown
- BE BE335672D patent/BE335672A/xx unknown
- BE BE335674D patent/BE335674A/xx unknown
-
1925
- 1925-05-11 GB GB12239/25A patent/GB256677A/en not_active Expired
- 1925-09-30 GB GB24338/25A patent/GB261154A/en not_active Expired
- 1925-09-30 GB GB5519/26A patent/GB259103A/en not_active Expired
-
1926
- 1926-03-15 FR FR613216D patent/FR613216A/fr not_active Expired
- 1926-03-19 US US96009A patent/US1722008A/en not_active Expired - Lifetime
- 1926-03-19 US US96008A patent/US1722007A/en not_active Expired - Lifetime
- 1926-03-19 US US96010A patent/US1730286A/en not_active Expired - Lifetime
- 1926-03-22 FR FR613218D patent/FR613218A/fr not_active Expired
- 1926-03-22 FR FR613217D patent/FR613217A/fr not_active Expired
- 1926-05-21 DE DEO15711D patent/DE463897C/de not_active Expired
- 1926-05-27 DE DEO15726D patent/DE463898C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1722008A (en) | 1929-07-23 |
| GB256677A (en) | 1926-08-11 |
| US1722007A (en) | 1929-07-23 |
| DE463898C (de) | 1928-08-06 |
| FR613216A (fr) | 1926-11-12 |
| BE335672A (da) | |
| US1730286A (en) | 1929-10-01 |
| GB259103A (en) | 1926-10-07 |
| FR613217A (fr) | 1926-11-12 |
| GB261154A (en) | 1926-11-18 |
| FR613218A (fr) | 1926-11-12 |
| BE335674A (da) | |
| DE463897C (de) | 1928-08-06 |