BE477491A - - Google Patents
Info
- Publication number
- BE477491A BE477491A BE477491DA BE477491A BE 477491 A BE477491 A BE 477491A BE 477491D A BE477491D A BE 477491DA BE 477491 A BE477491 A BE 477491A
- Authority
- BE
- Belgium
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US488825A US2416661A (en) | 1943-05-28 | 1943-05-28 | Dispenser type cathode electric discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE477491A true BE477491A (nl) |
Family
ID=23941276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE477491D BE477491A (nl) | 1943-05-28 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2416661A (nl) |
| BE (1) | BE477491A (nl) |
| FR (1) | FR943074A (nl) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2491425A (en) * | 1946-01-26 | 1949-12-13 | Raytheon Mfg Co | Electrode structure for gaseous discharge devices |
| US2678403A (en) * | 1946-05-03 | 1954-05-11 | Us Navy | Grid probe structure |
| US2592556A (en) * | 1947-09-25 | 1952-04-15 | Kenneth J Germeshausen | Gaseous-discharge device |
| US2624024A (en) * | 1949-10-26 | 1952-12-30 | Hartford Nat Bank & Trust Co | Cathode for use in electron discharge tubes |
| US2640949A (en) * | 1951-02-07 | 1953-06-02 | Atomic Energy Commission | Electron source |
| BE519027A (nl) * | 1952-04-09 | |||
| US2757308A (en) * | 1954-01-28 | 1956-07-31 | Gera Corp | Emissive cathode |
| US3201639A (en) * | 1955-02-09 | 1965-08-17 | Philips Corp | Thermionic dispenser cathode |
| GB931059A (en) * | 1961-02-10 | 1963-07-10 | Thorn Electrical Ind Ltd | Improvements in and relating to thermionic cathodes |
| US3439210A (en) * | 1966-01-03 | 1969-04-15 | Hughes Aircraft Co | Thermionic emission cathode having reduced frontal area and enlarged emission area for ion bombardment environment |
| US3461334A (en) * | 1967-02-27 | 1969-08-12 | Westinghouse Electric Corp | Ceramic discharge lamp |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR593479A (fr) * | 1924-04-10 | 1925-08-24 | Philips Nv | Tube à décharge à cathode incandescente, ayant une enveloppe consistant partiellement en matière isolante et partiellement en métal |
| US2201731A (en) * | 1938-11-30 | 1940-05-21 | Gen Electric | Discharge tube electrode assembly |
| US2317222A (en) * | 1941-03-20 | 1943-04-20 | Bell Telephone Labor Inc | Electron discharge device |
-
0
- BE BE477491D patent/BE477491A/xx unknown
-
1943
- 1943-05-28 US US488825A patent/US2416661A/en not_active Expired - Lifetime
-
1947
- 1947-03-12 FR FR943074D patent/FR943074A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2416661A (en) | 1947-02-25 |
| FR943074A (fr) | 1949-02-25 |