FR30077E - Improvements to thermionic devices - Google Patents

Improvements to thermionic devices

Info

Publication number
FR30077E
FR30077E FR30077DA FR30077E FR 30077 E FR30077 E FR 30077E FR 30077D A FR30077D A FR 30077DA FR 30077 E FR30077 E FR 30077E
Authority
FR
France
Prior art keywords
thermionic devices
thermionic
devices
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 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 FR30077E publication Critical patent/FR30077E/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
FR30077D 1924-06-26 1924-06-26 Improvements to thermionic devices Expired FR30077E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR30077T 1924-06-26

Publications (1)

Publication Number Publication Date
FR30077E true FR30077E (en) 1926-01-26

Family

ID=8668009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR30077D Expired FR30077E (en) 1924-06-26 1924-06-26 Improvements to thermionic devices

Country Status (1)

Country Link
FR (1) FR30077E (en)

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