BE488975A - - Google Patents
Info
- Publication number
- BE488975A BE488975A BE488975DA BE488975A BE 488975 A BE488975 A BE 488975A BE 488975D A BE488975D A BE 488975DA BE 488975 A BE488975 A BE 488975A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27122A US2629065A (en) | 1948-05-14 | 1948-05-14 | Overwound filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE488975A true BE488975A (en:Method) |
Family
ID=21835821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE488975D BE488975A (en:Method) | 1948-05-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2629065A (en:Method) |
| BE (1) | BE488975A (en:Method) |
| DE (1) | DE818536C (en:Method) |
| GB (1) | GB669912A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE972442C (de) * | 1952-05-27 | 1959-07-23 | Siemens Ag | Halterung fuer eine Kathode fuer elektrische Entladungsgefaesse |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1190412A (en) * | 1914-02-19 | 1916-07-11 | Radio Telephone & Telegraph Company | Electrode for devices for varying electrical resistance. |
| NL19436C (en:Method) * | 1926-04-06 | |||
| US1946603A (en) * | 1929-05-09 | 1934-02-13 | Electrons Inc | Cathode for electrical discharge devices |
| US2015417A (en) * | 1930-12-13 | 1935-09-24 | Rca Corp | Cathode |
| US2175345A (en) * | 1935-07-12 | 1939-10-10 | Gen Electric | Electric gaseous discharge device |
| GB486138A (en) * | 1937-01-19 | 1938-05-31 | Gen Electric Co Ltd | Improvements in electrodes for high-pressure metal vapour electric discharge devices |
| US2155237A (en) * | 1937-11-18 | 1939-04-18 | Gen Electric | Electric discharge device |
| NL65805C (en:Method) * | 1938-06-24 | |||
| BE440246A (en:Method) * | 1940-01-20 | |||
| US2329118A (en) * | 1941-07-12 | 1943-09-07 | Gen Electric | Electrode for electrical discharge devices |
| US2363028A (en) * | 1941-12-16 | 1944-11-21 | Carl J Warnke | Cathode filament |
| US2371205A (en) * | 1943-10-30 | 1945-03-13 | Coiled |
-
0
- BE BE488975D patent/BE488975A/xx unknown
-
1948
- 1948-05-14 US US27122A patent/US2629065A/en not_active Expired - Lifetime
-
1949
- 1949-04-20 GB GB10478/49A patent/GB669912A/en not_active Expired
-
1950
- 1950-04-14 DE DEW1639A patent/DE818536C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE818536C (de) | 1951-10-25 |
| US2629065A (en) | 1953-02-17 |
| GB669912A (en) | 1952-04-09 |