GB607261A - Improvements in electron discharge devices - Google Patents
Improvements in electron discharge devicesInfo
- Publication number
- GB607261A GB607261A GB2934/46A GB293446A GB607261A GB 607261 A GB607261 A GB 607261A GB 2934/46 A GB2934/46 A GB 2934/46A GB 293446 A GB293446 A GB 293446A GB 607261 A GB607261 A GB 607261A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ferric oxide
- silicate
- sodium silicate
- coating
- electron 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
- 239000011248 coating agent Substances 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 4
- 239000004115 Sodium Silicate Substances 0.000 abstract 3
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 108010010803 Gelatin Proteins 0.000 abstract 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000004111 Potassium silicate Substances 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 abstract 1
- 239000000908 ammonium hydroxide Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000012153 distilled water Substances 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 abstract 1
- 229920000159 gelatin Polymers 0.000 abstract 1
- 239000008273 gelatin Substances 0.000 abstract 1
- 235000019322 gelatine Nutrition 0.000 abstract 1
- 235000011852 gelatine desserts Nutrition 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229910052913 potassium silicate Inorganic materials 0.000 abstract 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 abstract 1
- 235000019353 potassium silicate Nutrition 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/88—Coatings
- H01J2229/882—Coatings having particular electrical resistive or conductive properties
Landscapes
- Discharge Lamp (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Coating material applied to the wall of an electron discharge device to inhibit arc-discharges comprises a finely-divided powder such as ferric oxide dispersed in alkali-metal silicate. The ferric oxide may be replaced wholly or partly by chromic oxide, or metals such as iron, nickel or copper which form insulating surface oxides may form the powder in the silicate. Where the coating is a strip adjacent an electrode wall coating, it may comprise finely-divided metals such as silver, gold or platinum and must be free of carbon in any form. In an example, the coating material is prepared by dissolving sodium silicate in distilled water which may be heated if desired, and adding slowly with constant stirring, ferric oxide. The weight of ferric oxide is preferably from about two to five times the weight of sodium silicate. A binder such as gelatin with ammonium hydroxide may be added. Potassium silicate may be used instead of sodium silicate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US575273A US2409514A (en) | 1945-01-30 | 1945-01-30 | Cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB607261A true GB607261A (en) | 1948-08-27 |
Family
ID=24299619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2934/46A Expired GB607261A (en) | 1945-01-30 | 1946-01-30 | Improvements in electron discharge devices |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2409514A (en) |
| GB (1) | GB607261A (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR926000A (en) * | 1945-04-05 | 1947-09-30 | ||
| US2527134A (en) * | 1947-11-14 | 1950-10-24 | Bell Telephone Labor Inc | Method of producing fluorescent screens |
| US2545120A (en) * | 1948-02-27 | 1951-03-13 | Rca Corp | Cathode-ray tube arc-over preventive |
| US2581243A (en) * | 1949-05-28 | 1952-01-01 | Rca Corp | Cathode of electron beam devices |
| US2586463A (en) * | 1950-07-07 | 1952-02-19 | Rca Corp | Electron beam deflection system |
| BE513715A (en) * | 1951-08-25 | |||
| US2658160A (en) * | 1951-11-23 | 1953-11-03 | Rauland Corp | Image-reproducing device |
| US2836751A (en) * | 1954-08-02 | 1958-05-27 | Rca Corp | Cathode ray tube manufacture |
| US2927236A (en) * | 1955-10-21 | 1960-03-01 | Scient Lab Developments Inc | Television picture tube |
| DE1163501B (en) * | 1958-05-24 | 1964-02-20 | Philips Patentverwaltung | Graphite suspension for use as conductive inner coatings in electron beam tubes |
| NL262474A (en) * | 1960-03-17 | |||
| US3136918A (en) * | 1960-12-16 | 1964-06-09 | Rca Corp | Cathode ray tube and method of operation |
| US3053694A (en) * | 1961-02-20 | 1962-09-11 | Gen Electric | Abradable material |
| US3177395A (en) * | 1963-04-04 | 1965-04-06 | Gen Electric | Flat cathode ray tube with increased deflection sensitivity |
| US3355617A (en) * | 1964-07-30 | 1967-11-28 | Motorola Inc | Reduction of arcing between electrodes in a cathode ray tube by conducting coating of resistance material on inner wall of tube neck |
| US3746870A (en) * | 1970-12-21 | 1973-07-17 | Gen Electric | Coated light conduit |
| BE791817A (en) * | 1971-11-26 | 1973-03-16 | Rca Corp | CATHODIC RAY TUBE |
| US3959686A (en) * | 1975-01-06 | 1976-05-25 | Gte Sylvania Incorporated | Cathode ray tube construction having defined processing and operational means incorporated therein |
| US4217521A (en) * | 1977-12-21 | 1980-08-12 | Zenith Radio Corporation | High potential static discharge means for television cathode ray tubes |
| US4638213A (en) * | 1980-10-08 | 1987-01-20 | Rca Corporation | CRT with internal contact stripe or patch and method of making said stripe or patch |
-
1945
- 1945-01-30 US US575273A patent/US2409514A/en not_active Expired - Lifetime
-
1946
- 1946-01-30 GB GB2934/46A patent/GB607261A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2409514A (en) | 1946-10-15 |
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