CH307771A - Process for producing a cathode for electric discharge tubes and cathode produced by this process. - Google Patents

Process for producing a cathode for electric discharge tubes and cathode produced by this process.

Info

Publication number
CH307771A
CH307771A CH307771DA CH307771A CH 307771 A CH307771 A CH 307771A CH 307771D A CH307771D A CH 307771DA CH 307771 A CH307771 A CH 307771A
Authority
CH
Switzerland
Prior art keywords
cathode
producing
electric discharge
discharge tubes
produced
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH307771A publication Critical patent/CH307771A/en

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)
  • Catalysts (AREA)
CH307771D 1951-05-03 1952-05-01 Process for producing a cathode for electric discharge tubes and cathode produced by this process. CH307771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10393/51A GB699977A (en) 1951-05-03 1951-05-03 Improvements in or relating to thermionic cathodes

Publications (1)

Publication Number Publication Date
CH307771A true CH307771A (en) 1955-06-15

Family

ID=9967000

Family Applications (1)

Application Number Title Priority Date Filing Date
CH307771D CH307771A (en) 1951-05-03 1952-05-01 Process for producing a cathode for electric discharge tubes and cathode produced by this process.

Country Status (6)

Country Link
US (1) US2748033A (en)
BE (1) BE511131A (en)
CH (1) CH307771A (en)
DE (1) DE911876C (en)
GB (1) GB699977A (en)
NL (1) NL89643C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755205A (en) * 1972-03-28 1973-08-28 Us Army Method of making a catalytic bed

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894059A (en) * 1927-04-08 1933-01-10 Forest Radio Company De Process for producing electron emitters and the product
US2049372A (en) * 1934-11-19 1936-07-28 Gen Electric Emissive coating for cathodes and method for preparing the same
US2430520A (en) * 1945-03-06 1947-11-11 Glass Science Inc Deposition of metal on glass from metal formates

Also Published As

Publication number Publication date
NL89643C (en)
DE911876C (en) 1954-05-20
US2748033A (en) 1956-05-29
GB699977A (en) 1953-11-18
BE511131A (en)

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