NL94233C - - Google Patents
Info
- Publication number
- NL94233C NL94233C NL94233DA NL94233C NL 94233 C NL94233 C NL 94233C NL 94233D A NL94233D A NL 94233DA NL 94233 C NL94233 C NL 94233C
- 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
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US473386A US2813220A (en) | 1954-12-06 | 1954-12-06 | Indirectly heated cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL94233C true NL94233C (es) |
Family
ID=23879314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL94233D NL94233C (es) | 1954-12-06 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US2813220A (es) |
| BE (1) | BE543391A (es) |
| CH (1) | CH336905A (es) |
| DE (1) | DE1039141B (es) |
| ES (1) | ES225387A1 (es) |
| FR (1) | FR1143215A (es) |
| GB (1) | GB793726A (es) |
| NL (1) | NL94233C (es) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE531122A (es) * | 1953-08-14 | |||
| US3201639A (en) * | 1955-02-09 | 1965-08-17 | Philips Corp | Thermionic dispenser cathode |
| US2945295A (en) * | 1957-12-20 | 1960-07-19 | Westinghouse Electric Corp | High temperature metallic joint |
| US3018404A (en) * | 1958-03-27 | 1962-01-23 | Raytheon Co | Electron tube cathodes |
| US2975320A (en) * | 1958-12-03 | 1961-03-14 | Rca Corp | Low-temperature plasma source |
| US2945150A (en) * | 1958-12-11 | 1960-07-12 | Gen Electric | Thermionic cathodes and methods of making |
| US2975322A (en) * | 1958-12-29 | 1961-03-14 | Raytheon Co | Indirectly heated cathodes |
| US3117249A (en) * | 1960-02-16 | 1964-01-07 | Sperry Rand Corp | Embedded heater cathode |
| US3134924A (en) * | 1960-07-05 | 1964-05-26 | Monsanto Co | Emissive materials of a metal matrix with molecularly dispersed additives |
| US3258636A (en) * | 1961-09-01 | 1966-06-28 | Electron emitter with activator of sill cide, boride or carbide of solid solu- tion of barium and at least one other alkaline earth metal | |
| US3373307A (en) * | 1963-11-21 | 1968-03-12 | Philips Corp | Dispenser cathode |
| DE2842079A1 (de) * | 1978-09-27 | 1980-04-03 | Siemens Ag | Vorratskathode, insbesondere metall- kapillar-kathode |
| JPS5652835A (en) * | 1979-10-01 | 1981-05-12 | Hitachi Ltd | Impregnated cathode |
| FR2494035A1 (fr) * | 1980-11-07 | 1982-05-14 | Thomson Csf | Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode |
| KR930007461B1 (ko) * | 1991-04-23 | 1993-08-11 | 주식회사 금성사 | 함침형 음극 제조방법 |
| FR2683090A1 (fr) * | 1991-10-25 | 1993-04-30 | Europ Composants Electron | Cathode a reserve et procede de fabrication d'une telle cathode. |
| KR930014673A (ko) * | 1991-12-20 | 1993-07-23 | 김정배 | 함침형 음극 구조체 및 그 제조방법 |
| DE10254697A1 (de) * | 2002-11-23 | 2004-06-03 | Philips Intellectual Property & Standards Gmbh | Vakuumelektronenröhre mit Oxidkathode |
| CN114340124B (zh) * | 2021-12-30 | 2024-02-27 | 中国科学院合肥物质科学研究院 | 一种钠离子发射体及其制备方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT174993B (de) * | 1951-02-08 | 1953-05-26 | Philips Nv | Elektrische Entladungsröhre mit einer aus einem porösen Körper aus hochschmelzendem Metall bestehenden Kathode und Verfahren zur Herstellung einer solchen Kathode |
| AT176924B (de) * | 1951-03-22 | 1953-12-10 | Philips Nv | Verfahren zur Herstellung einer Kathode für eine elektrische Entladungsröhre, die im Inneren einen Vorrat Erdalkalimetallverbindungen enthält und deren Wand wenigstens teilweise aus einem durch Pressen und Sintern hergestellten porösen Körper besteht, und durch dieses Verfahren hergestellte Kathode |
| DE890390C (de) * | 1951-07-12 | 1953-09-17 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
| NL91132C (es) * | 1951-11-29 | |||
| BE515833A (es) * | 1951-11-29 | |||
| BE515835A (es) * | 1951-11-29 | |||
| AT180338B (de) * | 1952-02-27 | 1954-11-25 | Philips Nv | Kathode für eine elektrische Entladungsröhre und Verfahren zur Herstellung dieser Kathode |
| AT183488B (de) * | 1953-06-11 | 1955-10-10 | Philips Nv | Verfahren zur Herstellung eines Kathodenkörpers für eine elektrische Entladungsröhre |
-
0
- NL NL94233D patent/NL94233C/xx active
- BE BE543391D patent/BE543391A/xx unknown
-
1954
- 1954-12-06 US US473386A patent/US2813220A/en not_active Expired - Lifetime
-
1955
- 1955-12-02 GB GB34563/55A patent/GB793726A/en not_active Expired
- 1955-12-02 DE DEN11529A patent/DE1039141B/de active Pending
- 1955-12-03 ES ES0225387A patent/ES225387A1/es not_active Expired
- 1955-12-05 FR FR1143215D patent/FR1143215A/fr not_active Expired
- 1955-12-05 CH CH336905D patent/CH336905A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB793726A (en) | 1958-04-23 |
| ES225387A1 (es) | 1956-02-01 |
| CH336905A (de) | 1959-03-15 |
| BE543391A (es) | |
| US2813220A (en) | 1957-11-12 |
| DE1039141B (de) | 1958-09-18 |
| FR1143215A (fr) | 1957-09-27 |