FR959951A - - Google Patents
Info
- Publication number
- FR959951A FR959951A FR959951DA FR959951A FR 959951 A FR959951 A FR 959951A FR 959951D A FR959951D A FR 959951DA FR 959951 A FR959951 A FR 959951A
- Authority
- FR
- France
- 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
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US522097A US2445993A (en) | 1944-02-12 | 1944-02-12 | Cathode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR959951A true FR959951A (xx) | 1950-04-07 |
Family
ID=24079457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR959951D Expired FR959951A (xx) | 1944-02-12 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2445993A (xx) |
| FR (1) | FR959951A (xx) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2899591A (en) * | 1959-08-11 | Electrical heating device | ||
| US2536879A (en) * | 1943-02-15 | 1951-01-02 | Gabrielli Ernesto | System of getter protection in high vacuum tubes |
| BE475720A (xx) * | 1946-08-30 | |||
| US2695442A (en) * | 1947-08-26 | 1954-11-30 | Hartford Nat Bank & Trust Co | Method of manufacturing electric discharge tubes |
| US2668253A (en) * | 1950-07-06 | 1954-02-02 | American Television Inc | Getter for electron discharge devices |
| US2656489A (en) * | 1951-04-14 | 1953-10-20 | Bell Telephone Labor Inc | Electron discharge device and processing thereof |
| US2838708A (en) * | 1954-06-09 | 1958-06-10 | Gen Electric | Electron discharge device and method of gettering |
| FR1137688A (fr) * | 1954-10-22 | 1957-06-03 | Thomson Houston Comp Francaise | Cathode perfectionnée |
| US2849638A (en) * | 1955-02-25 | 1958-08-26 | Westinghouse Electric Corp | Electrode structure and method for electronic tubes |
| US2831139A (en) * | 1955-10-18 | 1958-04-15 | James E Beggs | High-frequency electron discharge device having adjustably spaced electrodes |
| US2900549A (en) * | 1957-06-20 | 1959-08-18 | Machlett Lab Inc | Getter for electron tube |
| US3100813A (en) * | 1959-01-12 | 1963-08-13 | Sprague Electric Co | Capacitor sealing means |
| US3023341A (en) * | 1959-05-22 | 1962-02-27 | Jr Jackson W Kendall | Electron tube |
| DE1143589B (de) * | 1959-12-22 | 1963-02-14 | Edgerton Germeshausen And Grie | Verfahren zur Herstellung eines Heizers fuer Kathoden von elektrischen Entladungsroehren |
| NL261666A (xx) * | 1960-02-25 | |||
| US3184278A (en) * | 1961-05-29 | 1965-05-18 | Rca Corp | Method of manufacturing electron discharge devices |
| US3277327A (en) * | 1961-10-26 | 1966-10-04 | Dunlee Corp | X-ray diffraction tube |
| US3914638A (en) * | 1972-05-24 | 1975-10-21 | Gte Sylvania Inc | Cathode structure for cathode ray tube |
| US4382646A (en) * | 1980-11-13 | 1983-05-10 | Radcal Corporation | Method for removing gases caused by out-gassing in a vacuum vessel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1797990A (en) * | 1926-02-06 | 1931-03-24 | Arsene N Lucian | Heater construction for cathodes |
| US2032179A (en) * | 1933-04-12 | 1936-02-25 | Westinghouse Electric & Mfg Co | Oxide coated cathode for heavy duty service |
| US2078892A (en) * | 1933-08-10 | 1937-04-27 | The Union National Pittsburgh | Vacuum tube and method of making the same |
| US2146365A (en) * | 1934-12-13 | 1939-02-07 | John C Batchelor | Electron emitter |
| US2244358A (en) * | 1939-12-30 | 1941-06-03 | Rca Corp | Thermionic cathode assembly |
| US2341941A (en) * | 1941-07-18 | 1944-02-15 | Westinghouse Electric & Mfg Co | Vacuum discharge device |
| US2353743A (en) * | 1941-08-26 | 1944-07-18 | Gen Electric | High-frequency electronic discharge device |
-
0
- FR FR959951D patent/FR959951A/fr not_active Expired
-
1944
- 1944-02-12 US US522097A patent/US2445993A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2445993A (en) | 1948-07-27 |