FR731947A - Improvements to vacuum tubes - Google Patents
Improvements to vacuum tubesInfo
- Publication number
- FR731947A FR731947A FR731947DA FR731947A FR 731947 A FR731947 A FR 731947A FR 731947D A FR731947D A FR 731947DA FR 731947 A FR731947 A FR 731947A
- Authority
- FR
- France
- Prior art keywords
- vacuum tubes
- tubes
- vacuum
- 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
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
- H01J19/50—Spacing members extending to the envelope
- H01J19/52—Spacing members extending to the envelope without fixed connection between spacing member and envelope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0002—Construction arrangements of electrode systems
- H01J2893/0005—Fixing of electrodes
- H01J2893/0009—Electrode system pressing against vessel wall
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR731947T | 1931-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR731947A true FR731947A (en) | 1932-09-10 |
Family
ID=9120171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR731947D Expired FR731947A (en) | 1931-04-22 | 1931-04-22 | Improvements to vacuum tubes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR731947A (en) |
-
1931
- 1931-04-22 FR FR731947D patent/FR731947A/en not_active Expired
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