FR643977A - Improvements to electric discharge devices - Google Patents

Improvements to electric discharge devices

Info

Publication number
FR643977A
FR643977A FR643977DA FR643977A FR 643977 A FR643977 A FR 643977A FR 643977D A FR643977D A FR 643977DA FR 643977 A FR643977 A FR 643977A
Authority
FR
France
Prior art keywords
electric discharge
discharge devices
devices
electric
discharge
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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 Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Application granted granted Critical
Publication of FR643977A publication Critical patent/FR643977A/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
    • H01J17/38—Cold-cathode tubes
    • H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
    • H01J17/44—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes having one or more control electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0068—Electrode systems electrode assembly with control electrodes, e.g. including a screen
FR643977D 1926-11-19 1927-10-21 Improvements to electric discharge devices Expired FR643977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US643977XA 1926-11-19 1926-11-19

Publications (1)

Publication Number Publication Date
FR643977A true FR643977A (en) 1928-09-29

Family

ID=22055678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR643977D Expired FR643977A (en) 1926-11-19 1927-10-21 Improvements to electric discharge devices

Country Status (1)

Country Link
FR (1) FR643977A (en)

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