FR605946A - Oxide cathodes for discharge tubes and their manufacturing process - Google Patents

Oxide cathodes for discharge tubes and their manufacturing process

Info

Publication number
FR605946A
FR605946A FR605946DA FR605946A FR 605946 A FR605946 A FR 605946A FR 605946D A FR605946D A FR 605946DA FR 605946 A FR605946 A FR 605946A
Authority
FR
France
Prior art keywords
manufacturing process
discharge tubes
oxide cathodes
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 FR605946A publication Critical patent/FR605946A/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)
  • Solid Thermionic Cathode (AREA)
  • Discharge Lamp (AREA)
FR605946D 1924-12-27 1925-11-12 Oxide cathodes for discharge tubes and their manufacturing process Expired FR605946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL245147X 1924-12-27

Publications (1)

Publication Number Publication Date
FR605946A true FR605946A (en) 1926-06-04

Family

ID=19780801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR605946D Expired FR605946A (en) 1924-12-27 1925-11-12 Oxide cathodes for discharge tubes and their manufacturing process

Country Status (3)

Country Link
DE (1) DE596877C (en)
FR (1) FR605946A (en)
GB (1) GB245147A (en)

Also Published As

Publication number Publication date
GB245147A (en) 1926-08-05
DE596877C (en) 1934-05-14

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