BE563664A - - Google Patents
Info
- Publication number
- BE563664A BE563664A BE563664DA BE563664A BE 563664 A BE563664 A BE 563664A BE 563664D A BE563664D A BE 563664DA BE 563664 A BE563664 A BE 563664A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
- H01J9/047—Cathodes having impregnated bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US632294A US2986799A (en) | 1957-01-03 | 1957-01-03 | Method of making cathodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE563664A true BE563664A (US07413550-20080819-C00001.png) |
Family
ID=24534929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE563664D BE563664A (US07413550-20080819-C00001.png) | 1957-01-03 |
Country Status (6)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6515843A (US07413550-20080819-C00001.png) * | 1965-12-07 | 1967-06-08 | ||
| US4415835A (en) * | 1981-06-22 | 1983-11-15 | General Electric Company | Electron emissive coatings for electric discharge devices |
| US4734073A (en) * | 1986-10-10 | 1988-03-29 | The United States Of America As Represented By The Secretary Of The Army | Method of making a thermionic field emitter cathode |
| CN1298007C (zh) * | 2003-04-17 | 2007-01-31 | 中国科学院电子学研究所 | 基于纳米材料二氧化硅的浸渍钡钨阴极及制备方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2304166A (en) * | 1940-08-13 | 1942-12-08 | Nat Carbon Co Inc | Method of producing machined carbon articles |
| US2663928A (en) * | 1950-07-13 | 1953-12-29 | Jr Harry Lindsay Wheeler | Process for machining porous metals |
| US2721372A (en) * | 1951-06-30 | 1955-10-25 | Philips Corp | Incandescible cathodes |
| NL96177C (US07413550-20080819-C00001.png) * | 1952-02-27 |
-
0
- BE BE563664D patent/BE563664A/xx unknown
-
1957
- 1957-01-03 US US632294A patent/US2986799A/en not_active Expired - Lifetime
- 1957-12-31 GB GB40443/57A patent/GB848886A/en not_active Expired
- 1957-12-31 CH CH5429957A patent/CH371846A/de unknown
- 1957-12-31 ES ES0239384A patent/ES239384A1/es not_active Expired
-
1958
- 1958-01-02 FR FR1189430D patent/FR1189430A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES239384A1 (es) | 1958-06-16 |
| US2986799A (en) | 1961-06-06 |
| GB848886A (en) | 1960-09-21 |
| FR1189430A (fr) | 1959-10-02 |
| CH371846A (de) | 1963-09-15 |
