BE871925A - Structure absorbant les sons - Google Patents
Structure absorbant les sonsInfo
- Publication number
- BE871925A BE871925A BE191665A BE191665A BE871925A BE 871925 A BE871925 A BE 871925A BE 191665 A BE191665 A BE 191665A BE 191665 A BE191665 A BE 191665A BE 871925 A BE871925 A BE 871925A
- Authority
- BE
- Belgium
- Prior art keywords
- sound absorbing
- absorbing structure
- sound
- absorbing
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0035—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with undulated surfaces
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
- E01F8/0076—Cellular, e.g. as wall facing
- E01F8/0082—Cellular, e.g. as wall facing with damping material
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0094—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic constructions for generation of phase shifting
-
- 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
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK498477A DK140951B (da) | 1977-11-10 | 1977-11-10 | Lydabsorberende struktur. |
Publications (1)
Publication Number | Publication Date |
---|---|
BE871925A true BE871925A (fr) | 1979-03-01 |
Family
ID=8138412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE191665A BE871925A (fr) | 1977-11-10 | 1978-11-10 | Structure absorbant les sons |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE871925A (fr) |
DK (1) | DK140951B (fr) |
-
1977
- 1977-11-10 DK DK498477A patent/DK140951B/da not_active IP Right Cessation
-
1978
- 1978-11-10 BE BE191665A patent/BE871925A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK140951C (fr) | 1980-05-27 |
DK140951B (da) | 1979-12-10 |
DK498477A (fr) | 1979-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: ELEKTRONIKCENTRALEN Effective date: 19881130 |