FR629228A - Method for manufacturing oxide cathodes - Google Patents

Method for manufacturing oxide cathodes

Info

Publication number
FR629228A
FR629228A FR629228DA FR629228A FR 629228 A FR629228 A FR 629228A FR 629228D A FR629228D A FR 629228DA FR 629228 A FR629228 A FR 629228A
Authority
FR
France
Prior art keywords
oxide cathodes
manufacturing oxide
manufacturing
cathodes
oxide
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR629228A publication Critical patent/FR629228A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
FR629228D 1926-04-30 1927-02-17 Method for manufacturing oxide cathodes Expired FR629228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1139126A GB269341A (en) 1926-04-30 1926-04-30 Improvements in or relating to the manufacture of oxide cathodes for discharge tubes

Publications (1)

Publication Number Publication Date
FR629228A true FR629228A (en) 1927-11-07

Family

ID=9985353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR629228D Expired FR629228A (en) 1926-04-30 1927-02-17 Method for manufacturing oxide cathodes

Country Status (2)

Country Link
FR (1) FR629228A (en)
GB (1) GB269341A (en)

Also Published As

Publication number Publication date
GB269341A (en) 1927-04-21

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