OA00735A - Electric discharge tube provided with a cathode, the surface of which consists of alkaline earth metal oxide activated by barium. - Google Patents
Electric discharge tube provided with a cathode, the surface of which consists of alkaline earth metal oxide activated by barium.Info
- Publication number
- OA00735A OA00735A OA50814A OA50814A OA00735A OA 00735 A OA00735 A OA 00735A OA 50814 A OA50814 A OA 50814A OA 50814 A OA50814 A OA 50814A OA 00735 A OA00735 A OA 00735A
- Authority
- OA
- OAPI
- Prior art keywords
- barium
- cathode
- metal oxide
- earth metal
- alkaline earth
- Prior art date
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
- H01J1/14—Solid thermionic cathodes characterised by the material
- H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
-
- 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 |
---|---|---|---|
NL262150 | 1961-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
OA00735A true OA00735A (en) | 1967-07-15 |
Family
ID=19752920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
OA50814A OA00735A (en) | 1961-03-08 | 1964-12-12 | Electric discharge tube provided with a cathode, the surface of which consists of alkaline earth metal oxide activated by barium. |
Country Status (9)
Country | Link |
---|---|
US (1) | US3333141A (en) |
CH (1) | CH412118A (en) |
DE (1) | DE1149463B (en) |
DK (1) | DK106684C (en) |
ES (1) | ES275203A1 (en) |
GB (1) | GB994151A (en) |
NL (1) | NL113461C (en) |
OA (1) | OA00735A (en) |
SE (1) | SE306579B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6501944A (en) * | 1965-02-17 | 1966-08-18 | ||
US3663857A (en) * | 1969-02-13 | 1972-05-16 | Avco Corp | Electron emitter comprising metal oxide-metal contact interface and method for making the same |
US3898721A (en) * | 1973-05-18 | 1975-08-12 | Gte Sylvania Inc | Diffusion bonded cathode for electron discharge device |
US3875629A (en) * | 1973-05-18 | 1975-04-08 | Gte Sylvania Inc | Method of fabricating cathodes for electron discharge devices |
DE3323473A1 (en) * | 1983-06-29 | 1985-01-03 | Siemens AG, 1000 Berlin und 8000 München | QUICK HEATING CATHODE |
KR100195955B1 (en) * | 1995-12-20 | 1999-06-15 | 구자홍 | Cathode structure and the coating method of electron emitter |
DE102008041443A1 (en) * | 2008-08-22 | 2010-02-25 | Robert Bosch Gmbh | Gear drive unit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2950993A (en) * | 1956-04-02 | 1960-08-30 | Rca Corp | Oxide coated cathodes and method of manufacture |
US3159461A (en) * | 1958-10-20 | 1964-12-01 | Bell Telephone Labor Inc | Thermionic cathode |
US2945150A (en) * | 1958-12-11 | 1960-07-12 | Gen Electric | Thermionic cathodes and methods of making |
US2995674A (en) * | 1959-02-27 | 1961-08-08 | Raytheon Co | Impregnated cathodes |
NL255625A (en) * | 1959-09-18 |
-
0
- NL NL113461D patent/NL113461C/xx active
-
1962
- 1962-03-03 DE DEN21292A patent/DE1149463B/en active Pending
- 1962-03-05 SE SE2410/62A patent/SE306579B/xx unknown
- 1962-03-05 CH CH267362A patent/CH412118A/en unknown
- 1962-03-05 DK DK101462AA patent/DK106684C/en active
- 1962-03-05 GB GB8435/62A patent/GB994151A/en not_active Expired
- 1962-03-06 ES ES0275203A patent/ES275203A1/en not_active Expired
-
1964
- 1964-12-12 OA OA50814A patent/OA00735A/en unknown
-
1965
- 1965-06-03 US US464598A patent/US3333141A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3333141A (en) | 1967-07-25 |
DK106684C (en) | 1967-03-06 |
ES275203A1 (en) | 1962-05-01 |
GB994151A (en) | 1965-06-02 |
SE306579B (en) | 1968-12-02 |
DE1149463B (en) | 1963-05-30 |
CH412118A (en) | 1966-04-30 |
NL113461C (en) |
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