BE351807A - - Google Patents
Info
- Publication number
- BE351807A BE351807A BE351807DA BE351807A BE 351807 A BE351807 A BE 351807A BE 351807D A BE351807D A BE 351807DA BE 351807 A BE351807 A BE 351807A
- Authority
- BE
- Belgium
- Prior art keywords
- membrane
- sound
- central part
- fluid
- beads
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims description 40
- 239000012530 fluid Substances 0.000 claims description 14
- 239000011324 bead Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 description 3
- 230000003534 oscillatory effect Effects 0.000 description 2
- 241001474791 Proboscis Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000000926 separation method 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
- 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)
- Reciprocating Pumps (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE351807A true BE351807A (enExample) |
Family
ID=26680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE351807D BE351807A (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE351807A (enExample) |
-
0
- BE BE351807D patent/BE351807A/fr unknown
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