BE332336A - - Google Patents
Info
- Publication number
- BE332336A BE332336A BE332336DA BE332336A BE 332336 A BE332336 A BE 332336A BE 332336D A BE332336D A BE 332336DA BE 332336 A BE332336 A BE 332336A
- Authority
- BE
- Belgium
- Prior art keywords
- telephone
- nozzle
- acoustic
- sound
- tubular
- Prior art date
Links
- 229920001971 elastomer Polymers 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 239000007799 cork Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
- G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Pipe Accessories (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
BE332336A true BE332336A (enrdf_load_html_response) |
Family
ID=11286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE332336D BE332336A (enrdf_load_html_response) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE332336A (enrdf_load_html_response) |
-
0
- BE BE332336D patent/BE332336A/fr unknown
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