NL80503C - - Google Patents
Info
- Publication number
- NL80503C NL80503C NL80503DA NL80503C NL 80503 C NL80503 C NL 80503C NL 80503D A NL80503D A NL 80503DA NL 80503 C NL80503 C NL 80503C
- Authority
- NL
- Netherlands
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
- H01J1/148—Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/066—Cold cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
- H01J2893/0065—Electrode systems
- H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid Thermionic Cathode (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US153212A US2639399A (en) | 1950-03-31 | 1950-03-31 | Electron emitter |
Publications (1)
Publication Number | Publication Date |
---|---|
NL80503C true NL80503C (en) |
Family
ID=22546234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL80503D NL80503C (en) | 1950-03-31 |
Country Status (6)
Country | Link |
---|---|
US (1) | US2639399A (en) |
BE (1) | BE502232A (en) |
CH (1) | CH301197A (en) |
DE (1) | DE856666C (en) |
GB (2) | GB678258A (en) |
NL (1) | NL80503C (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2744073A (en) * | 1952-11-22 | 1956-05-01 | Battelle Development Corp | Thermionic emitter materials |
DE971413C (en) * | 1953-10-02 | 1959-01-22 | Siemens Ag | Device for crucible zone melting |
US3312856A (en) * | 1963-03-26 | 1967-04-04 | Gen Electric | Rhenium supported metallic boride cathode emitters |
US3505553A (en) * | 1966-05-12 | 1970-04-07 | Philips Corp | Radio-interference-free low-pressure mercury-vapor lamp |
US3440475A (en) * | 1967-04-11 | 1969-04-22 | Lokomotivbau Elektrotech | Lanthanum hexaboride cathode system for an electron beam generator |
US3944866A (en) * | 1974-04-08 | 1976-03-16 | Canadian Patents & Development Ltd. | Thermionic emitter of lanthanum strontium vanadates |
JPS5451776A (en) * | 1977-10-03 | 1979-04-23 | Nippon Hoso Kyokai <Nhk> | Gas discharge display panel |
US4260525A (en) * | 1978-11-27 | 1981-04-07 | Rca Corporation | Single-crystal hexaborides and method of preparation |
FR2445605A1 (en) * | 1978-12-27 | 1980-07-25 | Thomson Csf | DIRECT HEATING CATHODE AND HIGH FREQUENCY ELECTRONIC TUBE COMPRISING SUCH A CATHODE |
DE4305558A1 (en) * | 1993-02-24 | 1994-08-25 | Asea Brown Boveri | Process for the manufacture of wires which are especially suitable for cathodes of electron tubes |
US6077617A (en) * | 1998-08-26 | 2000-06-20 | Board Of Regents Of The University Of Nebraska | Rare-earth boride thin film system |
US6025038A (en) * | 1998-08-26 | 2000-02-15 | Board Of Regents Of The University Of Nebraska | Method for depositing rare-earth boride onto a substrate |
WO2008054451A2 (en) * | 2006-02-06 | 2008-05-08 | The University Of North Carolina At Chapel Hill | Synthesis and processing of rare-earth boride nanowires as electron emitters |
DE102011013262A1 (en) | 2011-03-07 | 2012-09-13 | Adlantis Dortmund Gmbh | Electron-ionization source has photoelectrons that are generated from atmospheric-stable layer by ultra-violet source and are actuated with distance of acceleration in dimension of average free path length of gas |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1023485A (en) * | 1908-11-20 | 1912-04-16 | Orlando M Thowless | Illuminant for electrical incandescent lamps. |
US2117636A (en) * | 1934-03-24 | 1938-05-17 | Gerald B Tjoflat | Thermionic electrode |
US2501089A (en) * | 1945-11-29 | 1950-03-21 | Martin A Pomerantz | Thermionic electron emitter |
US2502331A (en) * | 1948-12-21 | 1950-03-28 | Rca Corp | Geiger-muller counter for radioactive emission |
-
0
- NL NL80503D patent/NL80503C/xx active
- BE BE502232D patent/BE502232A/xx unknown
-
1950
- 1950-03-31 US US153212A patent/US2639399A/en not_active Expired - Lifetime
-
1951
- 1951-03-12 GB GB5910/51A patent/GB678258A/en not_active Expired
- 1951-03-30 DE DEI3955A patent/DE856666C/en not_active Expired
- 1951-03-31 CH CH301197D patent/CH301197A/en unknown
- 1951-07-18 GB GB17063/51A patent/GB683940A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2639399A (en) | 1953-05-19 |
GB683940A (en) | 1952-12-10 |
CH301197A (en) | 1954-08-31 |
DE856666C (en) | 1952-11-24 |
GB678258A (en) | 1952-08-27 |
BE502232A (en) |