GB641581A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB641581A GB641581A GB16626/48A GB1662648A GB641581A GB 641581 A GB641581 A GB 641581A GB 16626/48 A GB16626/48 A GB 16626/48A GB 1662648 A GB1662648 A GB 1662648A GB 641581 A GB641581 A GB 641581A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- tungsten
- relating
- molybdenum
- electric discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 2
- 239000011733 molybdenum Substances 0.000 abstract 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 2
- 229910052721 tungsten Inorganic materials 0.000 abstract 2
- 239000010937 tungsten Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910052735 hafnium Inorganic materials 0.000 abstract 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 239000010955 niobium Substances 0.000 abstract 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 239000003870 refractory metal Substances 0.000 abstract 1
- NEDFZELJKGZAQF-UHFFFAOYSA-J strontium;barium(2+);dicarbonate Chemical compound [Sr+2].[Ba+2].[O-]C([O-])=O.[O-]C([O-])=O NEDFZELJKGZAQF-UHFFFAOYSA-J 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 1
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
Landscapes
- Solid Thermionic Cathode (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL272699X | 1947-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB641581A true GB641581A (en) | 1950-08-16 |
Family
ID=19781994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16626/48A Expired GB641581A (en) | 1947-11-26 | 1948-06-21 | Improvements in or relating to electric discharge tubes |
Country Status (6)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127617A (en) * | 1981-12-11 | 1984-04-11 | Tokyo Shibaura Electric Co | Cathode structure for electron tube |
Families Citing this family (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1075747B (de) * | 1960-02-18 | Deutsche Elektronik G.m.b.H., Berlin-Wilmersdorf | Zylindrische Vorratskathode für Magnetfeldröhren | |
| BE498869A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1949-10-25 | |||
| US2671868A (en) * | 1950-04-11 | 1954-03-09 | Texas Co | Gamma ray detector |
| US2718607A (en) * | 1950-12-27 | 1955-09-20 | Siemens Ag | Dispenser-type cathode for electrical discharge tube |
| US2817784A (en) * | 1951-01-31 | 1957-12-24 | Siemens Ag | Cathode for use in electrical discharge devices |
| NL91413C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1951-03-22 | |||
| US2808530A (en) * | 1951-04-18 | 1957-10-01 | Siemens Ag | Cathode for electrical discharge devices |
| US2761993A (en) * | 1951-06-09 | 1956-09-04 | Siemens Ag | Cathodes for electrical discharge devices |
| US2774916A (en) * | 1951-06-09 | 1956-12-18 | Siemens Ag | Cathodes for electrical discharge devices |
| US2741717A (en) * | 1951-06-14 | 1956-04-10 | Siemens Ag | Dispenser type cathode having gettercoated parts |
| DE890390C (de) * | 1951-07-12 | 1953-09-17 | Siemens Ag | Kathode fuer elektrische Entladungsgefaesse |
| BE512852A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1951-07-17 | |||
| CH305872A (de) * | 1951-11-19 | 1955-03-15 | Siemens Ag | Kathode für elektrische Entladungsgefässe. |
| BE515835A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1951-11-29 | |||
| BE515834A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1951-11-29 | |||
| NL174029B (nl) * | 1951-11-29 | Joseph Salim Peress | Holle geleding voor bijvoorbeeld een duikpak. | |
| US3010046A (en) * | 1952-02-26 | 1961-11-21 | Westinghouse Electric Corp | Cathode structure |
| US2677778A (en) * | 1952-03-31 | 1954-05-04 | Atomic Energy Commission | Linear cathode |
| BE519027A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1952-04-09 | |||
| DE972442C (de) * | 1952-05-27 | 1959-07-23 | Siemens Ag | Halterung fuer eine Kathode fuer elektrische Entladungsgefaesse |
| DE1060499B (de) * | 1952-05-31 | 1959-07-02 | Egyesuelt Izzolampa | Vorratskathode mit in einem getrennten Raum befindlichen aktiven Stoffen und Reduziermitteln |
| US2783407A (en) * | 1952-06-28 | 1957-02-26 | Vierkotter Paul | Source of light |
| DE965431C (de) * | 1952-07-18 | 1957-06-06 | Egyesuelt Izzolampa | Gluehkathode mit einem durch einen poroesen Wolframsinterkoerper abgeschlossenen Raum, in dem mindestens ein Alkalimetall enthalten ist |
| DE954898C (de) * | 1952-07-23 | 1956-12-27 | Siemens Ag | Kathode mit einem Emissionsstoffvorrat fuer elektrische Entladungsgefaesse |
| US2777086A (en) * | 1952-07-26 | 1957-01-08 | Westinghouse Electric Corp | Cathode |
| US2814754A (en) * | 1952-08-28 | 1957-11-26 | Raytheon Mfg Co | Indirectly-heated cathodes |
| BE525821A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-01-19 | |||
| BE526506A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-02-16 | |||
| BE526781A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-02-26 | |||
| NL89470C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-03-04 | |||
| DE1025999B (de) * | 1953-03-04 | 1958-03-13 | Egyesuelt Izzolampa | Vorratskathode, bei der der Vorrat, mindestens nach der Aktivierung, einen Gehalt an Bariumoxyd aufweist |
| DE1052578B (de) * | 1953-06-18 | 1959-03-12 | Siemens Ag | Verfahren zur Herstellung einer Oxydkathode mit einer auf die Oberflaeche des Kathodenkoerpers aufgesinterten, porigen Metallschicht |
| NL96853C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-09-24 | |||
| US2899592A (en) * | 1953-11-18 | 1959-08-11 | coppola | |
| NL100384C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-12-17 | |||
| BE534280A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1953-12-22 | |||
| US2928013A (en) * | 1954-12-23 | 1960-03-08 | Siemens Ag | Electrical discharge device |
| US3076915A (en) * | 1954-12-24 | 1963-02-05 | Egyesuelt Izzolampa | Cathode assembly and method of making same |
| US2931934A (en) * | 1955-02-05 | 1960-04-05 | Egyesuelt Izzolampa | Indirectly heated supply cathode |
| US3113236A (en) * | 1959-06-23 | 1963-12-03 | Philips Corp | Oxide dispenser type cathode |
| FR1283895A (fr) * | 1960-12-21 | 1962-02-09 | Csf | Structure de cathode froide |
| US3251641A (en) * | 1962-03-27 | 1966-05-17 | Rca Corp | Electron tube and method of making the same |
| DE1275692B (de) * | 1963-10-14 | 1968-08-22 | Litton Industries Inc | Verfahren zur Herstellung einer Vorratskathode fuer Elektronenroehren |
| US5022883A (en) * | 1990-11-06 | 1991-06-11 | The United States Of America As Represented By The Secretary Of The Army | Method of making a long life high current density cathode from aluminum oxide and tungsten oxide powders |
| US5293410A (en) * | 1991-11-27 | 1994-03-08 | Schlumberger Technology Corporation | Neutron generator |
| US20030025435A1 (en) * | 1999-11-24 | 2003-02-06 | Vancil Bernard K. | Reservoir dispenser cathode and method of manufacture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2121589A (en) * | 1934-06-28 | 1938-06-21 | Westinghouse Electric & Mfg Co | Emissive incandescent cathode |
-
0
- NL NL69486D patent/NL69486C/xx active
- BE BE486002D patent/BE486002A/xx unknown
-
1948
- 1948-06-21 GB GB16626/48A patent/GB641581A/en not_active Expired
- 1948-07-17 US US39264A patent/US2543728A/en not_active Expired - Lifetime
- 1948-11-24 CH CH272699D patent/CH272699A/de unknown
- 1948-11-24 CH CH274441D patent/CH274441A/de unknown
- 1948-11-24 FR FR975422D patent/FR975422A/fr not_active Expired
- 1948-11-24 CH CH274440D patent/CH274440A/de unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127617A (en) * | 1981-12-11 | 1984-04-11 | Tokyo Shibaura Electric Co | Cathode structure for electron tube |
| US4524296A (en) * | 1981-12-11 | 1985-06-18 | Tokyo Shibaura Denki Kabushiki Kaisha | Cathode structure for electron tube |
Also Published As
| Publication number | Publication date |
|---|---|
| US2543728A (en) | 1951-02-27 |
| FR975422A (fr) | 1951-03-05 |
| BE486002A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| NL69486C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | |
| CH274441A (de) | 1951-03-31 |
| CH272699A (de) | 1950-12-31 |
| CH274440A (de) | 1951-03-31 |
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