FR530925A - Improvements to waterproof electrical devices - Google Patents

Improvements to waterproof electrical devices

Info

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
Application number
Other languages
French (fr)
Inventor
Fernand-Hippolyte-Lo Holweck
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR530925A publication Critical patent/FR530925A/en
Expired legal-status Critical Current

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
FR530925D 1921-02-11 1921-02-11 Improvements to waterproof electrical devices Expired FR530925A (en)

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)

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