DE854061C - Verfahren zur Herstellung von Oxydkathoden fuer elektrische Entladungsroehren - Google Patents
Verfahren zur Herstellung von Oxydkathoden fuer elektrische EntladungsroehrenInfo
- Publication number
- DE854061C DE854061C DEP26557A DEP0026557A DE854061C DE 854061 C DE854061 C DE 854061C DE P26557 A DEP26557 A DE P26557A DE P0026557 A DEP0026557 A DE P0026557A DE 854061 C DE854061 C DE 854061C
- Authority
- DE
- Germany
- Prior art keywords
- discharge tubes
- electrical discharge
- oxide cathodes
- production
- polyvinyl acetate
- 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 claims description 8
- 238000000034 method Methods 0.000 title claims description 5
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 11
- 239000011118 polyvinyl acetate Substances 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229920001220 nitrocellulos Polymers 0.000 description 11
- 239000000020 Nitrocellulose Substances 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 8
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 1
- 229940072049 amyl acetate Drugs 0.000 description 1
- PGMYKACGEOXYJE-UHFFFAOYSA-N anhydrous amyl acetate Natural products CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- 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
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Paints Or Removers (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB377944A GB582729A (en) | 1944-02-29 | 1944-02-29 | Improvements in or relating to methods of applying emissive coatings to the cathodes of electronic discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE854061C true DE854061C (de) | 1952-10-30 |
Family
ID=9764762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP26557A Expired DE854061C (de) | 1944-02-29 | 1948-12-24 | Verfahren zur Herstellung von Oxydkathoden fuer elektrische Entladungsroehren |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE478458A (enrdf_load_stackoverflow) |
| DE (1) | DE854061C (enrdf_load_stackoverflow) |
| FR (1) | FR957377A (enrdf_load_stackoverflow) |
| GB (1) | GB582729A (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1002475B (de) * | 1953-12-22 | 1957-02-14 | Loewe Opta Ag | Verfahren zum Herstellen von Emissionsschichten fuer Kathoden |
| DE1007891B (de) * | 1954-01-09 | 1957-05-09 | Telefunken Gmbh | Verfahren zur Herstellung von mit Russ oder Graphit versehenen Gittern fuer Elektronenroehren |
| DE1015939B (de) * | 1951-11-03 | 1957-09-19 | Gen Electric | Kathode fuer Quecksilberdampfentladungsroehren mit einem Unterlagekoerper aus Nickel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1640710A (en) * | 1926-03-01 | 1927-08-30 | Hazeltine Corp | Electron emitting cathode and process of preparing the same |
| GB275542A (en) * | 1926-08-06 | 1928-01-05 | Eduard Schrack | Method for producing highly emitting oxide cathodes for electron tubes |
| US1828545A (en) * | 1927-08-26 | 1931-10-20 | Ruben Tube Company | Vacuum tube and its elements |
| US2297048A (en) * | 1940-03-12 | 1942-09-29 | Gen Electric | Luminescent coating |
| US2311513A (en) * | 1940-01-17 | 1943-02-16 | Westinghouse Electric & Mfg Co | Method of applying luminescent coating |
-
0
- BE BE478458D patent/BE478458A/xx unknown
- FR FR957377D patent/FR957377A/fr not_active Expired
-
1944
- 1944-02-29 GB GB377944A patent/GB582729A/en not_active Expired
-
1948
- 1948-12-24 DE DEP26557A patent/DE854061C/de not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1640710A (en) * | 1926-03-01 | 1927-08-30 | Hazeltine Corp | Electron emitting cathode and process of preparing the same |
| GB275542A (en) * | 1926-08-06 | 1928-01-05 | Eduard Schrack | Method for producing highly emitting oxide cathodes for electron tubes |
| US1828545A (en) * | 1927-08-26 | 1931-10-20 | Ruben Tube Company | Vacuum tube and its elements |
| US2311513A (en) * | 1940-01-17 | 1943-02-16 | Westinghouse Electric & Mfg Co | Method of applying luminescent coating |
| US2297048A (en) * | 1940-03-12 | 1942-09-29 | Gen Electric | Luminescent coating |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1015939B (de) * | 1951-11-03 | 1957-09-19 | Gen Electric | Kathode fuer Quecksilberdampfentladungsroehren mit einem Unterlagekoerper aus Nickel |
| DE1002475B (de) * | 1953-12-22 | 1957-02-14 | Loewe Opta Ag | Verfahren zum Herstellen von Emissionsschichten fuer Kathoden |
| DE1007891B (de) * | 1954-01-09 | 1957-05-09 | Telefunken Gmbh | Verfahren zur Herstellung von mit Russ oder Graphit versehenen Gittern fuer Elektronenroehren |
Also Published As
| Publication number | Publication date |
|---|---|
| FR957377A (enrdf_load_stackoverflow) | 1950-02-18 |
| BE478458A (enrdf_load_stackoverflow) | |
| GB582729A (en) | 1946-11-26 |
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