GB508602A - Improvements in and relating to electric discharge devices and methods of manufacturing the same - Google Patents
Improvements in and relating to electric discharge devices and methods of manufacturing the sameInfo
- Publication number
- GB508602A GB508602A GB5757/38A GB575738A GB508602A GB 508602 A GB508602 A GB 508602A GB 5757/38 A GB5757/38 A GB 5757/38A GB 575738 A GB575738 A GB 575738A GB 508602 A GB508602 A GB 508602A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- manufacturing
- methods
- same
- electric discharge
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/50—Thermionic-cathode tubes
- H01J17/52—Thermionic-cathode tubes with one cathode and one anode
- H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
- H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US445593XA | 1933-12-29 | 1933-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB508602A true GB508602A (en) | 1939-07-04 |
Family
ID=21933039
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37395/34A Expired GB445593A (en) | 1933-12-29 | 1934-12-31 | Improvements in and relating to electric discharge devices |
| GB11499/36A Expired GB473666A (en) | 1933-12-29 | 1936-04-22 | Improvements in and relating to thermionic discharge devices |
| GB28892/37A Expired GB504783A (en) | 1933-12-29 | 1937-10-22 | Improvements in and relating to electric discharge devices |
| GB5757/38A Expired GB508602A (en) | 1933-12-29 | 1938-02-23 | Improvements in and relating to electric discharge devices and methods of manufacturing the same |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37395/34A Expired GB445593A (en) | 1933-12-29 | 1934-12-31 | Improvements in and relating to electric discharge devices |
| GB11499/36A Expired GB473666A (en) | 1933-12-29 | 1936-04-22 | Improvements in and relating to thermionic discharge devices |
| GB28892/37A Expired GB504783A (en) | 1933-12-29 | 1937-10-22 | Improvements in and relating to electric discharge devices |
Country Status (5)
| Country | Link |
|---|---|
| BE (2) | BE407069A (en) |
| DE (2) | DE687263C (en) |
| FR (4) | FR783344A (en) |
| GB (4) | GB445593A (en) |
| NL (2) | NL40906C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1004742B (en) * | 1952-12-12 | 1957-03-21 | Siemens Ag | Grid-controlled vapor or gas-filled discharge vessel |
| DE1100169B (en) * | 1957-05-20 | 1961-02-23 | Basic Products Corp | Transformer device for starting and operating metal vapor discharge lamps without a starter |
| US5451836A (en) * | 1993-07-29 | 1995-09-19 | Litton Systems, Inc. | Thyratron with annular keep-alive electrode |
-
1934
- 1934-12-27 FR FR783344D patent/FR783344A/en not_active Expired
- 1934-12-29 DE DE1934A0074933 patent/DE687263C/en not_active Expired
- 1934-12-29 BE BE407069D patent/BE407069A/xx unknown
- 1934-12-29 NL NL71938A patent/NL40906C/xx active
- 1934-12-31 GB GB37395/34A patent/GB445593A/en not_active Expired
-
1936
- 1936-04-22 GB GB11499/36A patent/GB473666A/en not_active Expired
- 1936-04-23 FR FR47366D patent/FR47366E/en not_active Expired
- 1936-05-02 BE BE415337D patent/BE415337A/xx unknown
-
1937
- 1937-10-19 NL NL84617A patent/NL48416C/xx active
- 1937-10-22 GB GB28892/37A patent/GB504783A/en not_active Expired
- 1937-10-22 FR FR48941D patent/FR48941E/en not_active Expired
-
1938
- 1938-02-23 GB GB5757/38A patent/GB508602A/en not_active Expired
-
1939
- 1939-02-22 FR FR50245D patent/FR50245E/en not_active Expired
- 1939-02-23 DE DEL97229D patent/DE736854C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB504783A (en) | 1939-04-24 |
| NL40906C (en) | 1937-01-15 |
| DE736854C (en) | 1943-06-30 |
| FR50245E (en) | 1940-01-20 |
| FR783344A (en) | 1935-07-11 |
| NL48416C (en) | 1939-12-15 |
| BE415337A (en) | 1936-06-03 |
| DE687263C (en) | 1940-01-26 |
| FR47366E (en) | 1937-03-25 |
| FR48941E (en) | 1938-09-21 |
| GB473666A (en) | 1937-10-18 |
| GB445593A (en) | 1936-04-15 |
| BE407069A (en) | 1935-01-31 |
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