BE370002A - - Google Patents
Info
- Publication number
- BE370002A BE370002A BE370002DA BE370002A BE 370002 A BE370002 A BE 370002A BE 370002D A BE370002D A BE 370002DA BE 370002 A BE370002 A BE 370002A
- Authority
- BE
- Belgium
- Prior art keywords
- membrane
- air
- hole
- central hole
- closed
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims description 21
- 230000000717 retained effect Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 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
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
- G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Diaphragms And Bellows (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE370002A true BE370002A (en:Method) |
Family
ID=41543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE370002D BE370002A (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE370002A (en:Method) |
-
0
- BE BE370002D patent/BE370002A/fr unknown
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