GB388046A - Improvements in the introduction of chemically active substances into vacuum tubes - Google Patents
Improvements in the introduction of chemically active substances into vacuum tubesInfo
- Publication number
- GB388046A GB388046A GB22616/31A GB2261631A GB388046A GB 388046 A GB388046 A GB 388046A GB 22616/31 A GB22616/31 A GB 22616/31A GB 2261631 A GB2261631 A GB 2261631A GB 388046 A GB388046 A GB 388046A
- Authority
- GB
- United Kingdom
- Prior art keywords
- introduction
- mixture
- active substances
- chemically active
- vacuum tubes
- 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
- 239000013543 active substance Substances 0.000 title 1
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 2
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 2
- 229910052791 calcium Inorganic materials 0.000 abstract 2
- 239000011575 calcium Substances 0.000 abstract 2
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 abstract 1
- 229910001632 barium fluoride Inorganic materials 0.000 abstract 1
- 229940043430 calcium compound Drugs 0.000 abstract 1
- 150000001674 calcium compounds Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 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
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/395—Filling vessels
-
- 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
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL388046X | 1930-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB388046A true GB388046A (en) | 1933-02-10 |
Family
ID=19785739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22616/31A Expired GB388046A (en) | 1930-11-18 | 1931-08-10 | Improvements in the introduction of chemically active substances into vacuum tubes |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR726260A (enrdf_load_stackoverflow) |
| GB (1) | GB388046A (enrdf_load_stackoverflow) |
| NL (1) | NL36936C (enrdf_load_stackoverflow) |
-
0
- NL NL36936D patent/NL36936C/xx active
-
1931
- 1931-08-10 GB GB22616/31A patent/GB388046A/en not_active Expired
- 1931-11-14 FR FR726260D patent/FR726260A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL36936C (enrdf_load_stackoverflow) | |
| FR726260A (fr) | 1932-05-26 |
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