FR41679E - Improvements to discharge tubes with control electrode - Google Patents

Improvements to discharge tubes with control electrode

Info

Publication number
FR41679E
FR41679E FR41679DA FR41679E FR 41679 E FR41679 E FR 41679E FR 41679D A FR41679D A FR 41679DA FR 41679 E FR41679 E FR 41679E
Authority
FR
France
Prior art keywords
control electrode
discharge tubes
tubes
discharge
electrode
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)
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
Application granted granted Critical
Publication of FR41679E publication Critical patent/FR41679E/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
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
FR41679D 1930-10-08 1932-02-23 Improvements to discharge tubes with control electrode Expired FR41679E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US487272A US2027175A (en) 1930-10-08 1930-10-08 Grid construction of electric discharge devices

Publications (1)

Publication Number Publication Date
FR41679E true FR41679E (en) 1933-03-10

Family

ID=23935063

Family Applications (3)

Application Number Title Priority Date Filing Date
FR723932D Expired FR723932A (en) 1930-10-08 1931-10-08 Improvements to discharge tubes with control electrode
FR40920D Expired FR40920E (en) 1930-10-08 1931-10-09 Improvements to discharge tubes with control electrode
FR41679D Expired FR41679E (en) 1930-10-08 1932-02-23 Improvements to discharge tubes with control electrode

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR723932D Expired FR723932A (en) 1930-10-08 1931-10-08 Improvements to discharge tubes with control electrode
FR40920D Expired FR40920E (en) 1930-10-08 1931-10-09 Improvements to discharge tubes with control electrode

Country Status (4)

Country Link
US (1) US2027175A (en)
DE (1) DE639908C (en)
FR (3) FR723932A (en)
GB (1) GB379889A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636144A (en) * 1951-02-03 1953-04-21 Raytheon Mfg Co Gaseous discharge device

Also Published As

Publication number Publication date
GB379889A (en) 1932-09-08
FR40920E (en) 1932-09-16
FR723932A (en) 1932-04-18
US2027175A (en) 1936-01-07
DE639908C (en) 1936-12-17

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