DE203240C - - Google Patents
Info
- Publication number
- DE203240C DE203240C DENDAT203240D DE203240DA DE203240C DE 203240 C DE203240 C DE 203240C DE NDAT203240 D DENDAT203240 D DE NDAT203240D DE 203240D A DE203240D A DE 203240DA DE 203240 C DE203240 C DE 203240C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- bolt
- spring
- anchor
- trumpet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012528 membrane Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 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
- G10K9/10—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by mechanical means only
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE203240C true DE203240C (https=) |
Family
ID=465664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT203240D Active DE203240C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE203240C (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1280135A1 (fr) * | 2001-07-25 | 2003-01-29 | INRS - Prévention des Accidents du Travail et des Maladies Prof. | Dispositif d'émission d'un signal sonore |
-
0
- DE DENDAT203240D patent/DE203240C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1280135A1 (fr) * | 2001-07-25 | 2003-01-29 | INRS - Prévention des Accidents du Travail et des Maladies Prof. | Dispositif d'émission d'un signal sonore |
| FR2827993A1 (fr) * | 2001-07-25 | 2003-01-31 | Inst Nat Rech Securite | Dispositif d'emission d'un signal sonore |
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