FR1229819A - Pressure maintenance device for hydrogen discharge tubes - Google Patents

Pressure maintenance device for hydrogen discharge tubes

Info

Publication number
FR1229819A
FR1229819A FR789251A FR789251A FR1229819A FR 1229819 A FR1229819 A FR 1229819A FR 789251 A FR789251 A FR 789251A FR 789251 A FR789251 A FR 789251A FR 1229819 A FR1229819 A FR 1229819A
Authority
FR
France
Prior art keywords
maintenance device
discharge tubes
hydrogen discharge
pressure maintenance
hydrogen
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
FR789251A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Priority to FR789251A priority Critical patent/FR1229819A/en
Application granted granted Critical
Publication of FR1229819A publication Critical patent/FR1229819A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
    • H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/20—Selection of substances for gas fillings; Specified operating pressures or temperatures
FR789251A 1959-03-13 1959-03-13 Pressure maintenance device for hydrogen discharge tubes Expired FR1229819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR789251A FR1229819A (en) 1959-03-13 1959-03-13 Pressure maintenance device for hydrogen discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR789251A FR1229819A (en) 1959-03-13 1959-03-13 Pressure maintenance device for hydrogen discharge tubes

Publications (1)

Publication Number Publication Date
FR1229819A true FR1229819A (en) 1960-09-09

Family

ID=8712401

Family Applications (1)

Application Number Title Priority Date Filing Date
FR789251A Expired FR1229819A (en) 1959-03-13 1959-03-13 Pressure maintenance device for hydrogen discharge tubes

Country Status (1)

Country Link
FR (1) FR1229819A (en)

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