FR769678A - Improvements to processes for activating electron emitters - Google Patents

Improvements to processes for activating electron emitters

Info

Publication number
FR769678A
FR769678A FR769678DA FR769678A FR 769678 A FR769678 A FR 769678A FR 769678D A FR769678D A FR 769678DA FR 769678 A FR769678 A FR 769678A
Authority
FR
France
Prior art keywords
processes
electron emitters
activating electron
activating
emitters
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR769678A publication Critical patent/FR769678A/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
    • H01J9/045—Activation of assembled cathode

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Vapour Deposition (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Solid Thermionic Cathode (AREA)
FR769678D 1933-06-30 1934-02-10 Improvements to processes for activating electron emitters Expired FR769678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US678347A US2019504A (en) 1933-06-30 1933-06-30 Activation process for electron emitters

Publications (1)

Publication Number Publication Date
FR769678A true FR769678A (en) 1934-08-31

Family

ID=24722413

Family Applications (1)

Application Number Title Priority Date Filing Date
FR769678D Expired FR769678A (en) 1933-06-30 1934-02-10 Improvements to processes for activating electron emitters

Country Status (3)

Country Link
US (1) US2019504A (en)
FR (1) FR769678A (en)
GB (1) GB430170A (en)

Also Published As

Publication number Publication date
GB430170A (en) 1935-06-14
US2019504A (en) 1935-11-05

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