FR845287A - Process for producing alkaline earth metal vapors in closed discharge tubes with metal wall bulb - Google Patents
Process for producing alkaline earth metal vapors in closed discharge tubes with metal wall bulbInfo
- Publication number
- FR845287A FR845287A FR845287DA FR845287A FR 845287 A FR845287 A FR 845287A FR 845287D A FR845287D A FR 845287DA FR 845287 A FR845287 A FR 845287A
- Authority
- FR
- France
- Prior art keywords
- alkaline earth
- discharge tubes
- closed discharge
- earth metal
- producing alkaline
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
- H01J7/183—Composition or manufacture of getters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE510413X | 1937-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR845287A true FR845287A (en) | 1939-08-17 |
Family
ID=6547437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR845287D Expired FR845287A (en) | 1937-11-15 | 1938-10-28 | Process for producing alkaline earth metal vapors in closed discharge tubes with metal wall bulb |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR845287A (en) |
GB (1) | GB510413A (en) |
NL (1) | NL53051C (en) |
-
0
- NL NL53051D patent/NL53051C/xx active
-
1938
- 1938-10-28 FR FR845287D patent/FR845287A/en not_active Expired
- 1938-11-09 GB GB32505/38A patent/GB510413A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB510413A (en) | 1939-08-01 |
NL53051C (en) |
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