BE526781A - - Google Patents
Info
- Publication number
- BE526781A BE526781A BE526781DA BE526781A BE 526781 A BE526781 A BE 526781A BE 526781D A BE526781D A BE 526781DA BE 526781 A BE526781 A BE 526781A
- Authority
- BE
- Belgium
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
-
- 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)
- Microwave Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL319758X | 1953-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE526781A true BE526781A (en:Method) |
Family
ID=19783943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE526781D BE526781A (en:Method) | 1953-02-26 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2867742A (en:Method) |
| BE (1) | BE526781A (en:Method) |
| CH (1) | CH319758A (en:Method) |
| DE (1) | DE1028697B (en:Method) |
| FR (1) | FR1093864A (en:Method) |
| GB (1) | GB739645A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2965793A (en) * | 1959-05-12 | 1960-12-20 | Westinghouse Electric Corp | Electron device |
| DE1253818B (de) * | 1963-05-08 | 1967-11-09 | Hitachi Ltd | Gasentladungsroehre |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE674258C (de) * | 1934-01-27 | 1939-04-11 | Telefunken Gmbh | Indirekt geheizte Gluehkathode fuer Kathodenstrahlroehren und Verfahren zu ihrer Herstellung |
| DE669029C (de) * | 1934-06-29 | 1938-12-15 | Siemens Schuckertwerke Akt Ges | Selbstaufheizkathode |
| GB445575A (en) * | 1934-10-12 | 1936-04-14 | Gen Electric Co Ltd | Improvements in or relating to electric discharge devices |
| US2175345A (en) * | 1935-07-12 | 1939-10-10 | Gen Electric | Electric gaseous discharge device |
| US2171238A (en) * | 1937-09-02 | 1939-08-29 | Westinghouse Electric & Mfg Co | Discharge device and electrode |
| US2492142A (en) * | 1945-10-17 | 1949-12-27 | Kenneth J Germeshausen | Electric system embodying coldcathode gaseous discharge device |
| NL69486C (en:Method) * | 1947-11-26 | |||
| US2721372A (en) * | 1951-06-30 | 1955-10-25 | Philips Corp | Incandescible cathodes |
-
0
- BE BE526781D patent/BE526781A/xx unknown
-
1954
- 1954-02-18 US US411222A patent/US2867742A/en not_active Expired - Lifetime
- 1954-02-23 GB GB5296/54A patent/GB739645A/en not_active Expired
- 1954-02-24 DE DEN8535A patent/DE1028697B/de active Pending
- 1954-02-24 CH CH319758D patent/CH319758A/de unknown
- 1954-02-24 FR FR1093864D patent/FR1093864A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1028697B (de) | 1958-04-24 |
| CH319758A (de) | 1957-02-28 |
| GB739645A (en) | 1955-11-02 |
| FR1093864A (fr) | 1955-05-10 |
| US2867742A (en) | 1959-01-06 |