BE519027A - - Google Patents
Info
- Publication number
- BE519027A BE519027A BE519027DA BE519027A BE 519027 A BE519027 A BE 519027A BE 519027D A BE519027D A BE 519027DA BE 519027 A BE519027 A BE 519027A
- 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
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL168731 | 1952-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE519027A true BE519027A (https=) |
Family
ID=19750556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE519027D BE519027A (https=) | 1952-04-09 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2925514A (https=) |
| BE (1) | BE519027A (https=) |
| CH (1) | CH318310A (https=) |
| ES (1) | ES208641A1 (https=) |
| FR (1) | FR1074360A (https=) |
| GB (1) | GB725851A (https=) |
| NL (1) | NL95281C (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2914836A1 (de) * | 1979-04-11 | 1980-10-16 | Siemens Ag | Elektrodenaktivierungsmasse fuer eine gasentladungsroehre |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3076915A (en) * | 1954-12-24 | 1963-02-05 | Egyesuelt Izzolampa | Cathode assembly and method of making same |
| GB1137124A (en) * | 1964-12-23 | 1968-12-18 | Nat Res Dev | Thermionic electron emitter |
| DE1234861B (de) * | 1965-07-05 | 1967-02-23 | Siemens Ag | Vorratskathode fuer elektrische Entladungsgefaesse |
| DE1283403B (de) * | 1966-08-05 | 1968-11-21 | Siemens Ag | Mittelbar geheizte Vorratskathode fuer elektrische Entladungsgefaesse |
| US6603250B2 (en) * | 2001-08-27 | 2003-08-05 | Osram Sylvania Inc. | Cathode coating for thermionic arc discharge lamp cathodes |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1922244A (en) * | 1930-09-13 | 1933-08-15 | Fansteel Prod Co Inc | Electrode and method of making the same |
| US2085605A (en) * | 1934-05-11 | 1937-06-29 | Gen Electric | Thermionic cathode for electric discharge devices |
| US2107945A (en) * | 1934-11-20 | 1938-02-08 | Gen Electric | Cathode structure |
| GB624009A (en) * | 1942-11-14 | 1949-05-26 | Philips Nv | Improvements in or relating to electric discharge tubes |
| BE477491A (https=) * | 1943-05-28 | |||
| BE486002A (https=) * | 1947-11-26 | |||
| BE486753A (https=) * | 1948-01-15 | |||
| BE515834A (https=) * | 1951-11-29 | |||
| BE515833A (https=) * | 1951-11-29 | |||
| GB731454A (en) * | 1952-10-28 | 1955-06-08 | Vickers Electrical Co Ltd | Improvements relating to electron emissive devices |
-
0
- BE BE519027D patent/BE519027A/xx unknown
- NL NL95281D patent/NL95281C/xx active
-
1953
- 1953-04-02 GB GB9211/53A patent/GB725851A/en not_active Expired
- 1953-04-06 ES ES0208641A patent/ES208641A1/es not_active Expired
- 1953-04-07 FR FR1074360D patent/FR1074360A/fr not_active Expired
- 1953-04-07 CH CH318310D patent/CH318310A/de unknown
- 1953-04-08 US US347512A patent/US2925514A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2914836A1 (de) * | 1979-04-11 | 1980-10-16 | Siemens Ag | Elektrodenaktivierungsmasse fuer eine gasentladungsroehre |
Also Published As
| Publication number | Publication date |
|---|---|
| US2925514A (en) | 1960-02-16 |
| ES208641A1 (es) | 1953-07-01 |
| CH318310A (de) | 1956-12-31 |
| NL95281C (https=) | |
| GB725851A (en) | 1955-03-09 |
| FR1074360A (fr) | 1954-10-05 |