GB1418196A - Fabrication of dark heaters - Google Patents
Fabrication of dark heatersInfo
- Publication number
- GB1418196A GB1418196A GB1602173A GB1602173A GB1418196A GB 1418196 A GB1418196 A GB 1418196A GB 1602173 A GB1602173 A GB 1602173A GB 1602173 A GB1602173 A GB 1602173A GB 1418196 A GB1418196 A GB 1418196A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- bath
- april
- coated
- dark
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000002245 particle Substances 0.000 abstract 9
- 239000007788 liquid Substances 0.000 abstract 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract 2
- 230000000149 penetrating effect Effects 0.000 abstract 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- 229910010413 TiO 2 Inorganic materials 0.000 abstract 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 abstract 1
- 238000000498 ball milling Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
-
- 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
- H01J9/08—Manufacture of heaters for indirectly-heated cathodes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Powder Metallurgy (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Electrolytic Production Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00242240A US3852105A (en) | 1972-04-07 | 1972-04-07 | Fabrication of dark heaters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1418196A true GB1418196A (en) | 1975-12-17 |
Family
ID=22914004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1602173A Expired GB1418196A (en) | 1972-04-07 | 1973-04-04 | Fabrication of dark heaters |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3852105A (enrdf_load_stackoverflow) |
| JP (1) | JPS5331591B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1014805A (enrdf_load_stackoverflow) |
| FR (1) | FR2179251B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1418196A (enrdf_load_stackoverflow) |
| NL (1) | NL7304824A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190788A (en) * | 1986-05-16 | 1987-11-25 | English Electric Valve Co Ltd | Cathode |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1074284A (en) * | 1976-06-07 | 1980-03-25 | Ethyl Corporation | Chemical process |
| JPH0622095B2 (ja) * | 1985-05-17 | 1994-03-23 | 株式会社日立製作所 | ダ−クヒ−タの製造方法 |
| DE3628363A1 (de) * | 1986-08-21 | 1988-02-25 | Mtu Muenchen Gmbh | Verfahren zum herstellen von schutzschichten |
| DE19837007C2 (de) * | 1998-08-14 | 2003-07-03 | Siemens Ag | Verfahren zur Herstellung eines aus einem Metall gebildeten Bauteils des Vakuumgehäuses einer Elektronenröhre |
| US20050194374A1 (en) * | 2004-03-02 | 2005-09-08 | Applied Materials, Inc. | Heated ceramic substrate support with protective coating |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2764511A (en) * | 1953-08-28 | 1956-09-25 | Sylvania Electric Prod | Filamentary cathode and method of making same |
| US3246197A (en) * | 1962-10-02 | 1966-04-12 | Westinghouse Electric Corp | Cathode heater having an aluminum oxide and tungesten coating |
| BE637284A (enrdf_load_stackoverflow) * | 1963-08-29 | |||
| GB1060942A (en) * | 1964-01-27 | 1967-03-08 | Varian Associates | Cathode heater assembly and method of making same |
| US3328201A (en) * | 1964-04-27 | 1967-06-27 | Rca Corp | Heater for electron tubes |
| US3401297A (en) * | 1965-08-23 | 1968-09-10 | Varian Associates | Thermionic cathodes for electron discharge devices with improved refractory metal heater wires |
-
1972
- 1972-04-07 US US00242240A patent/US3852105A/en not_active Expired - Lifetime
-
1973
- 1973-03-07 CA CA165,430A patent/CA1014805A/en not_active Expired
- 1973-04-04 GB GB1602173A patent/GB1418196A/en not_active Expired
- 1973-04-06 NL NL7304824A patent/NL7304824A/xx not_active Application Discontinuation
- 1973-04-06 FR FR7312564A patent/FR2179251B1/fr not_active Expired
- 1973-04-06 JP JP3939673A patent/JPS5331591B2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2190788A (en) * | 1986-05-16 | 1987-11-25 | English Electric Valve Co Ltd | Cathode |
| US4810925A (en) * | 1986-05-16 | 1989-03-07 | English Electric Valve Company Limited | Directly heated cathodes |
| GB2190788B (en) * | 1986-05-16 | 1990-07-25 | English Electric Valve Co Ltd | Directly heated cathodes |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2179251A1 (enrdf_load_stackoverflow) | 1973-11-16 |
| JPS5331591B2 (enrdf_load_stackoverflow) | 1978-09-04 |
| FR2179251B1 (enrdf_load_stackoverflow) | 1978-05-26 |
| JPS4917960A (enrdf_load_stackoverflow) | 1974-02-16 |
| DE2316565A1 (de) | 1973-10-18 |
| DE2316565B2 (de) | 1976-01-15 |
| US3852105A (en) | 1974-12-03 |
| CA1014805A (en) | 1977-08-02 |
| NL7304824A (enrdf_load_stackoverflow) | 1973-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19930403 |