NL45545C - - Google Patents
Info
- Publication number
- NL45545C NL45545C NL80839A NL80839A NL45545C NL 45545 C NL45545 C NL 45545C NL 80839 A NL80839 A NL 80839A NL 80839 A NL80839 A NL 80839A NL 45545 C NL45545 C NL 45545C
- Authority
- NL
- Netherlands
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Toys (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB312837A GB489671A (en) | 1937-02-03 | 1937-02-03 | Apparatus for receiving sounds and for determining the direction of origin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL45545C true NL45545C (en, 2012) | 1939-04-15 |
Family
ID=9752437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL80839A NL45545C (en, 2012) | 1937-02-03 | 1937-01-18 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR816283A (en, 2012) |
| GB (1) | GB489671A (en, 2012) |
| NL (1) | NL45545C (en, 2012) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2435253A (en) * | 1940-05-13 | 1948-02-03 | Submarine Signal Co | System for sound ranging |
| DE948944C (de) * | 1941-12-09 | 1956-09-06 | Atlas Werke Ag | Vorrichtung zum gerichteten Senden oder Empfangen von Schallwellen |
| DE1033556B (de) * | 1949-11-18 | 1958-07-03 | Atlas Werke Ag | Strahleranordnung zur Echolotung mit Schallwellen |
| US2671206A (en) * | 1950-12-29 | 1954-03-02 | Joseph F Krause | Adjustable transducer |
-
1937
- 1937-01-13 FR FR816283D patent/FR816283A/fr not_active Expired
- 1937-01-18 NL NL80839A patent/NL45545C/xx active
- 1937-02-03 GB GB312837A patent/GB489671A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB489671A (en) | 1938-08-02 |
| FR816283A (fr) | 1937-08-04 |