BE401748A - - Google Patents
Info
- Publication number
- BE401748A BE401748A BE401748DA BE401748A BE 401748 A BE401748 A BE 401748A BE 401748D A BE401748D A BE 401748DA BE 401748 A BE401748 A BE 401748A
- Authority
- BE
- Belgium
- Prior art keywords
- warning device
- housing
- diaphragm
- terized
- charac
- Prior art date
Links
- 238000004804 winding Methods 0.000 claims description 7
- 230000000284 resting effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 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
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
- G10K9/15—Self-interrupting arrangements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Emergency Alarm Devices (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE401748A true BE401748A (https=) |
Family
ID=67619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE401748D BE401748A (https=) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE401748A (https=) |
-
0
- BE BE401748D patent/BE401748A/fr unknown
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