LU39035A1 - - Google Patents
Info
- Publication number
- LU39035A1 LU39035A1 LU39035DA LU39035A1 LU 39035 A1 LU39035 A1 LU 39035A1 LU 39035D A LU39035D A LU 39035DA LU 39035 A1 LU39035 A1 LU 39035A1
- Authority
- LU
- Luxembourg
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
- 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
- G10K11/04—Acoustic filters ; Acoustic resonators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/16—Vortex devices, i.e. devices in which use is made of the pressure drop associated with vortex motion in a fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/26—Devices characterised by the use of fluids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR802320A FR1241787A (fr) | 1959-08-07 | 1959-08-07 | Résonateur acoustique à impédance variable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU39035A1 true LU39035A1 (US08088918-20120103-C00131.png) | 1960-10-03 |
Family
ID=8718103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU39035D LU39035A1 (US08088918-20120103-C00131.png) | 1959-08-07 | 1960-08-02 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE593636A (US08088918-20120103-C00131.png) |
| FR (1) | FR1241787A (US08088918-20120103-C00131.png) |
| GB (1) | GB914274A (US08088918-20120103-C00131.png) |
| LU (1) | LU39035A1 (US08088918-20120103-C00131.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4228356C2 (de) * | 1992-08-26 | 1995-10-19 | Daimler Benz Aerospace Ag | Hohlraumresonator zur Lärmreduzierung |
-
1959
- 1959-08-07 FR FR802320A patent/FR1241787A/fr not_active Expired
-
1960
- 1960-08-01 BE BE593636A patent/BE593636A/fr unknown
- 1960-08-02 LU LU39035D patent/LU39035A1/xx unknown
- 1960-08-03 GB GB2686660A patent/GB914274A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE593636A (fr) | 1960-12-01 |
| GB914274A (en) | 1963-01-02 |
| FR1241787A (fr) | 1960-09-23 |
