FR2454716B3 - - Google Patents
Info
- Publication number
- FR2454716B3 FR2454716B3 FR8005453A FR8005453A FR2454716B3 FR 2454716 B3 FR2454716 B3 FR 2454716B3 FR 8005453 A FR8005453 A FR 8005453A FR 8005453 A FR8005453 A FR 8005453A FR 2454716 B3 FR2454716 B3 FR 2454716B3
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- B06B1/0207—Driving circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
- H02H3/17—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected
-
- 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
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/40—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups with testing, calibrating, safety devices, built-in protection, construction details
-
- 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
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Dc-Dc Converters (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD21239379A DD143041A1 (de) | 1979-04-21 | 1979-04-21 | Schaltungsanordnung fuer einen kurzschlusssicheren ultraschallgenerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2454716A1 FR2454716A1 (fr) | 1980-11-14 |
| FR2454716B3 true FR2454716B3 (cg-RX-API-DMAC10.html) | 1982-01-15 |
Family
ID=5517769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8005453A Granted FR2454716A1 (fr) | 1979-04-21 | 1980-03-11 | Dispositif de branchement pour un generateur d'ultrasons protege contre les courts-circuits |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS55141894A (cg-RX-API-DMAC10.html) |
| DD (1) | DD143041A1 (cg-RX-API-DMAC10.html) |
| DE (1) | DE3008101A1 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2454716A1 (cg-RX-API-DMAC10.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3409927A1 (de) * | 1984-03-17 | 1985-09-26 | Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar | Breitbandiges anpassungsnetzwerk |
-
1979
- 1979-04-21 DD DD21239379A patent/DD143041A1/de not_active IP Right Cessation
-
1980
- 1980-03-03 DE DE19803008101 patent/DE3008101A1/de not_active Withdrawn
- 1980-03-11 FR FR8005453A patent/FR2454716A1/fr active Granted
- 1980-03-19 JP JP3417080A patent/JPS55141894A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2454716A1 (fr) | 1980-11-14 |
| DE3008101A1 (de) | 1980-10-30 |
| JPS55141894A (en) | 1980-11-06 |
| DD143041A1 (de) | 1980-07-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |