NL111477C - - Google Patents
Info
- Publication number
- NL111477C NL111477C NL111477A NL111477A NL111477C NL 111477 C NL111477 C NL 111477C NL 111477 A NL111477 A NL 111477A NL 111477 A NL111477 A NL 111477A NL 111477 C NL111477 C NL 111477C
- 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
- 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
- H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (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 |
|---|---|---|---|
| NL236886 | 1959-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL111477C true NL111477C (fr) | 1965-07-15 |
Family
ID=19751613
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL236886D NL236886A (fr) | 1959-03-07 | ||
| NL111477A NL111477C (fr) | 1959-03-07 | 1959-03-07 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL236886D NL236886A (fr) | 1959-03-07 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE588332A (fr) |
| DE (1) | DE1098038B (fr) |
| FR (1) | FR1250279A (fr) |
| GB (1) | GB915367A (fr) |
| NL (2) | NL111477C (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004094A (en) * | 1976-03-16 | 1977-01-18 | Novar Electronics Corporation | Enclosure system for sound generators |
| US4350724A (en) | 1978-05-08 | 1982-09-21 | Marrs Ralph E | Acoustic energy systems |
| US4450929A (en) * | 1980-05-09 | 1984-05-29 | Marrs Ralph E | Acoustic energy systems |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2146871B (en) * | 1983-03-02 | 1986-11-26 | Brian Douglas Ward | Constant pressure device |
-
0
- NL NL236886D patent/NL236886A/xx unknown
-
1959
- 1959-03-07 NL NL111477A patent/NL111477C/xx active
-
1960
- 1960-03-03 DE DEN17978A patent/DE1098038B/de active Pending
- 1960-03-04 BE BE588332A patent/BE588332A/fr unknown
- 1960-03-04 GB GB776060A patent/GB915367A/en not_active Expired
- 1960-03-07 FR FR820546A patent/FR1250279A/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004094A (en) * | 1976-03-16 | 1977-01-18 | Novar Electronics Corporation | Enclosure system for sound generators |
| US4350724A (en) | 1978-05-08 | 1982-09-21 | Marrs Ralph E | Acoustic energy systems |
| US4450929A (en) * | 1980-05-09 | 1984-05-29 | Marrs Ralph E | Acoustic energy systems |
Also Published As
| Publication number | Publication date |
|---|---|
| NL236886A (fr) | |
| BE588332A (fr) | 1960-09-05 |
| DE1098038B (de) | 1961-01-26 |
| GB915367A (en) | 1963-01-09 |
| FR1250279A (fr) | 1961-01-06 |