FR1570127A - - Google Patents

Info

Publication number
FR1570127A
FR1570127A FR1570127DA FR1570127A FR 1570127 A FR1570127 A FR 1570127A FR 1570127D A FR1570127D A FR 1570127DA FR 1570127 A FR1570127 A FR 1570127A
Authority
FR
France
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)
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 FR1570127A publication Critical patent/FR1570127A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/047—Cathodes having impregnated bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR1570127D 1967-06-06 1968-06-06 Expired FR1570127A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2593967 1967-06-06

Publications (1)

Publication Number Publication Date
FR1570127A true FR1570127A (de) 1969-06-06

Family

ID=10235778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1570127D Expired FR1570127A (de) 1967-06-06 1968-06-06

Country Status (2)

Country Link
FR (1) FR1570127A (de)
NL (1) NL6807899A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2237303A1 (de) * 1973-07-09 1975-02-07 Bbc Brown Boveri & Cie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2237303A1 (de) * 1973-07-09 1975-02-07 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
NL6807899A (de) 1968-12-09

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Legal Events

Date Code Title Description
ST Notification of lapse