NL187939B - Ondergedompelde akoestische reflector. - Google Patents
Ondergedompelde akoestische reflector.Info
- Publication number
- NL187939B NL187939B NLAANVRAGE7901494,A NL7901494A NL187939B NL 187939 B NL187939 B NL 187939B NL 7901494 A NL7901494 A NL 7901494A NL 187939 B NL187939 B NL 187939B
- Authority
- NL
- Netherlands
- Prior art keywords
- acoustic reflector
- immersed
- immersed acoustic
- reflector
- acoustic
- Prior art date
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
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/20—Reflecting arrangements
- G10K11/205—Reflecting arrangements for underwater use
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S204/00—Chemistry: electrical and wave energy
- Y10S204/06—Unusual non-204 uses of electrolysis
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7808430A FR2420773A1 (fr) | 1978-03-23 | 1978-03-23 | Reflecteur acoustique immerge et procede de fabrication |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7901494A NL7901494A (nl) | 1979-09-25 |
NL187939B true NL187939B (nl) | 1991-09-16 |
NL187939C NL187939C (nl) | 1992-02-17 |
Family
ID=9206193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7901494,A NL187939C (nl) | 1978-03-23 | 1979-02-26 | Ondergedompelde akoestische reflector. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4197920A (nl) |
DE (1) | DE2911505A1 (nl) |
FR (1) | FR2420773A1 (nl) |
GB (1) | GB2022613B (nl) |
NL (1) | NL187939C (nl) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5024872A (en) * | 1986-02-27 | 1991-06-18 | Raytheon Company | Sheets of stretched and polarized polymer materials and method of manufacturer |
US4784898A (en) * | 1987-10-13 | 1988-11-15 | The B. F. Goodrich Company | High sonar transmission composition |
FR2622333B1 (fr) * | 1987-10-27 | 1990-01-26 | Thomson Csf | Revetement anechoique pour ondes acoustiques |
EP1005628B1 (en) * | 1997-06-19 | 2008-03-05 | Mahesh C. Bhardwaj | Ultrasonic transducer for high transduction in gases and method for non-contact ultrasound transmission into solid materials |
US8485315B2 (en) | 2009-06-25 | 2013-07-16 | Defence Research & Development Organisation Ministry of Defence | Acoustic energy reflector |
US20200136198A1 (en) * | 2017-09-13 | 2020-04-30 | Farida Kasumzade | Method and device for increasing battery life and prevention of premature battery failure |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1348828A (en) * | 1919-02-01 | 1920-08-03 | Submarine Signal Co | Method and apparatus for sound insulation |
US1378420A (en) * | 1919-09-06 | 1921-05-17 | Merritt Ernest | Submarine sound detection |
US3021504A (en) * | 1956-07-02 | 1962-02-13 | William J Toulis | Apparatus for controlling the effective compressibility of a liquid |
US3069486A (en) * | 1958-05-26 | 1962-12-18 | Yardney International Corp | Electrochemical electrode structure |
FR1577603A (nl) * | 1967-08-12 | 1969-08-08 | ||
US3447627A (en) * | 1967-09-29 | 1969-06-03 | Us Navy | Underwater sound reflector apparatus |
FR2240813B1 (nl) * | 1973-08-16 | 1976-04-30 | France Etat | |
CH597371A5 (nl) * | 1975-04-25 | 1978-03-31 | Battelle Memorial Institute |
-
1978
- 1978-03-23 FR FR7808430A patent/FR2420773A1/fr active Granted
-
1979
- 1979-02-26 NL NLAANVRAGE7901494,A patent/NL187939C/nl not_active IP Right Cessation
- 1979-03-16 US US06/021,318 patent/US4197920A/en not_active Expired - Lifetime
- 1979-03-22 GB GB7910170A patent/GB2022613B/en not_active Expired
- 1979-03-23 DE DE19792911505 patent/DE2911505A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2911505A1 (de) | 1979-09-27 |
NL187939C (nl) | 1992-02-17 |
GB2022613B (en) | 1982-08-18 |
FR2420773A1 (fr) | 1979-10-19 |
NL7901494A (nl) | 1979-09-25 |
DE2911505C2 (nl) | 1988-06-30 |
FR2420773B1 (nl) | 1980-09-19 |
US4197920A (en) | 1980-04-15 |
GB2022613A (en) | 1979-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BA | A request for search or an international-type search has been filed | ||
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BB | A search report has been drawn up | ||
BV | The patent application has lapsed | ||
V1 | Lapsed because of non-payment of the annual fee |