FR549269A - Improvements to electric arc devices - Google Patents
Improvements to electric arc devicesInfo
- Publication number
- FR549269A FR549269A FR549269DA FR549269A FR 549269 A FR549269 A FR 549269A FR 549269D A FR549269D A FR 549269DA FR 549269 A FR549269 A FR 549269A
- Authority
- FR
- France
- Prior art keywords
- electric arc
- arc devices
- devices
- electric
- arc
- Prior art date
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/18—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having a starting switch
- H05B41/19—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having a starting switch for lamps having an auxiliary starting electrode
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US549269XA | 1921-03-24 | 1921-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR549269A true FR549269A (en) | 1923-02-06 |
Family
ID=21994432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR549269D Expired FR549269A (en) | 1921-03-24 | 1922-03-23 | Improvements to electric arc devices |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR549269A (en) |
-
1922
- 1922-03-23 FR FR549269D patent/FR549269A/en not_active Expired
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