BE672198A - - Google Patents
Info
- Publication number
- BE672198A BE672198A BE672198DA BE672198A BE 672198 A BE672198 A BE 672198A BE 672198D A BE672198D A BE 672198DA BE 672198 A BE672198 A BE 672198A
- Authority
- BE
- Belgium
Links
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
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
- G10K9/22—Mountings; Casings
-
- 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
-
- 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)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Alarm Systems (AREA)
- Road Signs Or Road Markings (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR994691A FR1422316A (fr) | 1964-11-12 | 1964-11-12 | Avertisseur sonore perfectionné |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE672198A true BE672198A (xx) | 1966-03-16 |
Family
ID=8842331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE672198D BE672198A (xx) | 1964-11-12 | 1965-11-10 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE672198A (xx) |
| ES (1) | ES319525A1 (xx) |
| FR (1) | FR1422316A (xx) |
| GB (1) | GB1083418A (xx) |
-
1964
- 1964-11-12 FR FR994691A patent/FR1422316A/fr not_active Expired
-
1965
- 1965-11-10 BE BE672198D patent/BE672198A/xx unknown
- 1965-11-12 GB GB4823265A patent/GB1083418A/en not_active Expired
- 1965-11-12 ES ES0319525A patent/ES319525A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1083418A (en) | 1967-09-13 |
| FR1422316A (fr) | 1965-12-24 |
| ES319525A1 (es) | 1966-05-16 |