FR1131490A - Improvements in thermal insulation of cathodes - Google Patents

Improvements in thermal insulation of cathodes

Info

Publication number
FR1131490A
FR1131490A FR1131490DA FR1131490A FR 1131490 A FR1131490 A FR 1131490A FR 1131490D A FR1131490D A FR 1131490DA FR 1131490 A FR1131490 A FR 1131490A
Authority
FR
France
Prior art keywords
cathodes
thermal insulation
insulation
thermal
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Application granted granted Critical
Publication of FR1131490A publication Critical patent/FR1131490A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
FR1131490D 1954-04-19 1955-04-19 Improvements in thermal insulation of cathodes Expired FR1131490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1131490XA 1954-04-19 1954-04-19

Publications (1)

Publication Number Publication Date
FR1131490A true FR1131490A (en) 1957-02-21

Family

ID=22347825

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1131490D Expired FR1131490A (en) 1954-04-19 1955-04-19 Improvements in thermal insulation of cathodes

Country Status (1)

Country Link
FR (1) FR1131490A (en)

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