NL97571C - - Google Patents
Info
- Publication number
- NL97571C NL97571C NL97571DA NL97571C NL 97571 C NL97571 C NL 97571C NL 97571D A NL97571D A NL 97571DA NL 97571 C NL97571 C NL 97571C
- 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 |
|---|---|---|---|
| US345392XA | 1953-11-18 | 1953-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL97571C true NL97571C (fr) |
Family
ID=21877047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL97571D NL97571C (fr) | 1953-11-18 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2899592A (fr) |
| BE (1) | BE533455A (fr) |
| CH (1) | CH345392A (fr) |
| DE (1) | DE1043519B (fr) |
| FR (1) | FR1113555A (fr) |
| GB (1) | GB777142A (fr) |
| NL (1) | NL97571C (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL261666A (fr) * | 1960-02-25 | |||
| US3558966A (en) * | 1967-03-01 | 1971-01-26 | Semicon Associates Inc | Directly heated dispenser cathode |
| US3693007A (en) * | 1970-05-25 | 1972-09-19 | Egyesuelt Izzolampa | Oxide cathode for an electric discharge device |
| US4417173A (en) * | 1980-12-09 | 1983-11-22 | E M I-Varian Limited | Thermionic electron emitters and methods of making them |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1954474A (en) * | 1927-05-20 | 1934-04-10 | Espe Werner | Glow cathode |
| US2085605A (en) * | 1934-05-11 | 1937-06-29 | Gen Electric | Thermionic cathode for electric discharge devices |
| US2121589A (en) * | 1934-06-28 | 1938-06-21 | Westinghouse Electric & Mfg Co | Emissive incandescent cathode |
| US2147447A (en) * | 1936-09-21 | 1939-02-14 | Siemens Ag | Glow cathode |
| DE707255C (de) * | 1936-09-21 | 1941-06-17 | Siemens Schuckertwerke Akt Ges | Gluehkathode hoher Leistung, insbesondere fuer gas- oder dampfgefuellte Entladungsgefaese |
| US2180988A (en) * | 1937-06-16 | 1939-11-21 | Gen Electric | Electrode for electric discharge devices |
| US2389060A (en) * | 1943-08-13 | 1945-11-13 | Callite Tungsten Corp | Refractory body of high electronic emission |
| US2473550A (en) * | 1947-08-19 | 1949-06-21 | Raytheon Mfg Co | Directly heated cathode |
| BE486002A (fr) * | 1947-11-26 | |||
| BE498869A (fr) * | 1949-10-25 | |||
| US2741717A (en) * | 1951-06-14 | 1956-04-10 | Siemens Ag | Dispenser type cathode having gettercoated parts |
| DE895479C (de) * | 1951-11-20 | 1953-11-02 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
| BE515833A (fr) * | 1951-11-29 | |||
| NL91132C (fr) * | 1951-11-29 | |||
| NL96177C (fr) * | 1952-02-27 |
-
0
- US US2899592D patent/US2899592A/en not_active Expired - Lifetime
- BE BE533455D patent/BE533455A/xx unknown
- NL NL97571D patent/NL97571C/xx active
-
1954
- 1954-11-15 DE DEN9761A patent/DE1043519B/de active Pending
- 1954-11-16 CH CH345392D patent/CH345392A/de unknown
- 1954-11-16 GB GB33173/54A patent/GB777142A/en not_active Expired
- 1954-11-18 FR FR1113555D patent/FR1113555A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1113555A (fr) | 1956-03-30 |
| CH345392A (de) | 1960-03-31 |
| US2899592A (en) | 1959-08-11 |
| DE1043519B (de) | 1958-11-13 |
| BE533455A (fr) | |
| GB777142A (en) | 1957-06-19 |