FR530925A - Improvements to waterproof electrical devices - Google Patents
Improvements to waterproof electrical devicesInfo
- Publication number
- FR530925A FR530925A FR530925DA FR530925A FR 530925 A FR530925 A FR 530925A FR 530925D A FR530925D A FR 530925DA FR 530925 A FR530925 A FR 530925A
- Authority
- FR
- France
- Prior art keywords
- electrical devices
- waterproof electrical
- waterproof
- devices
- electrical
- 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
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/20—Seals between parts of vessels
- H01J5/22—Vacuum-tight joints between parts of vessel
- H01J5/30—Vacuum-tight joints between parts of vessel using packing-material, e.g. sealing-liquid or elastic insert
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
- H01J2893/0047—Closure other than lamp base
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR530925T | 1921-02-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR530925A true FR530925A (en) | 1922-01-04 |
Family
ID=8923602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR530925D Expired FR530925A (en) | 1921-02-11 | 1921-02-11 | Improvements to waterproof electrical devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR530925A (en) |
-
1921
- 1921-02-11 FR FR530925D patent/FR530925A/en not_active Expired
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