BE473991A - - Google Patents
Info
- Publication number
- BE473991A BE473991A BE473991DA BE473991A BE 473991 A BE473991 A BE 473991A BE 473991D A BE473991D A BE 473991DA BE 473991 A BE473991 A BE 473991A
- 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
- H01J1/16—Cathodes heated directly by an electric current characterised by the shape
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US399454A US2283896A (en) | 1941-06-24 | 1941-06-24 | Cathode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE473991A true BE473991A (fr) |
Family
ID=23579565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE473991D BE473991A (fr) | 1941-06-24 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2283896A (fr) |
| BE (1) | BE473991A (fr) |
| FR (1) | FR947719A (fr) |
| GB (1) | GB556505A (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2515361A (en) * | 1946-12-13 | 1950-07-18 | Bell Telephone Labor Inc | Electric discharge device |
| US2662990A (en) * | 1950-09-21 | 1953-12-15 | Collins Radio Co | Resnatron filament basket |
| US2720608A (en) * | 1951-03-13 | 1955-10-11 | Wihtol Weltis | Cathodes for electron tubes |
| US2693544A (en) * | 1951-12-14 | 1954-11-02 | Collins Radio Co | Resnatron filament basket |
| FR1137688A (fr) * | 1954-10-22 | 1957-06-03 | Thomson Houston Comp Francaise | Cathode perfectionnée |
| US2892120A (en) * | 1954-10-22 | 1959-06-23 | Gen Electric | Cathode structure |
| US2998544A (en) * | 1958-02-28 | 1961-08-29 | Litton Electron Tube Corp | Magnetron cathode |
| US3197669A (en) * | 1961-05-12 | 1965-07-27 | Welding Research Inc | Electron emitting element for electron gun |
| US4760306A (en) * | 1983-06-10 | 1988-07-26 | The United States Of America As Represented By The United States Department Of Energy | Electron emitting filaments for electron discharge devices |
-
0
- BE BE473991D patent/BE473991A/xx unknown
-
1941
- 1941-06-24 US US399454A patent/US2283896A/en not_active Expired - Lifetime
-
1942
- 1942-06-23 GB GB8626/42A patent/GB556505A/en not_active Expired
-
1947
- 1947-06-07 FR FR947719D patent/FR947719A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2283896A (en) | 1942-05-19 |
| GB556505A (en) | 1943-10-07 |
| FR947719A (fr) | 1949-07-11 |