NL42560C - - Google Patents
Info
- Publication number
- NL42560C NL42560C NL42560DA NL42560C NL 42560 C NL42560 C NL 42560C NL 42560D A NL42560D A NL 42560DA NL 42560 C NL42560 C NL 42560C
- Authority
- NL
- Netherlands
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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/22—Heaters
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7041/35A GB453154A (en) | 1935-03-06 | 1935-03-06 | Improvements in or relating to indirectly heated cathodes for thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL42560C true NL42560C (en:Method) |
Family
ID=9825498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL42560D NL42560C (en:Method) | 1935-03-06 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2164913A (en:Method) |
| BE (1) | BE411406A (en:Method) |
| DE (1) | DE755099C (en:Method) |
| FR (1) | FR798600A (en:Method) |
| GB (1) | GB453154A (en:Method) |
| NL (1) | NL42560C (en:Method) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2487695A (en) * | 1946-11-29 | 1949-11-08 | North American Geophysical Com | Electric heating element |
| US2742585A (en) * | 1952-08-22 | 1956-04-17 | Gen Electric | Electrical vapor detector |
| BE523420A (en:Method) * | 1952-10-11 | |||
| GB749312A (en) * | 1953-05-02 | 1956-05-23 | Emi Ltd | Improvements in or relating to indirectly heated cathodes for electron discharge devices |
| NL84939C (en:Method) * | 1954-01-01 | |||
| US2899664A (en) * | 1956-02-27 | 1959-08-11 | Electric heating units and methods of making the same | |
| US2935709A (en) * | 1958-03-18 | 1960-05-03 | Ii William A Paine | Apparatus and method for strain rod assembly and filament core |
| US3265924A (en) * | 1962-06-29 | 1966-08-09 | York Res Corp | Thermionic tube having novel heater and cathode |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH157162A (de) * | 1930-07-03 | 1932-09-15 | Gustav Ganz & Co | Indirekt geheizte Glühkathode für Entladungsröhren. |
| NL36127C (en:Method) * | 1932-02-16 | |||
| US2158665A (en) * | 1932-06-30 | 1939-05-16 | Hygrade Sylvania Corp | Electron discharge device |
-
0
- BE BE411406D patent/BE411406A/xx unknown
- NL NL42560D patent/NL42560C/xx active
-
1935
- 1935-03-06 GB GB7041/35A patent/GB453154A/en not_active Expired
- 1935-10-19 US US45701A patent/US2164913A/en not_active Expired - Lifetime
- 1935-10-31 FR FR798600D patent/FR798600A/fr not_active Expired
-
1936
- 1936-02-08 DE DEI54281D patent/DE755099C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR798600A (fr) | 1936-05-20 |
| DE755099C (de) | 1953-10-26 |
| GB453154A (en) | 1936-09-07 |
| BE411406A (en:Method) | |
| US2164913A (en) | 1939-07-04 |