BE457909A - - Google Patents

Info

Publication number
BE457909A
BE457909A BE457909DA BE457909A BE 457909 A BE457909 A BE 457909A BE 457909D A BE457909D A BE 457909DA BE 457909 A BE457909 A BE 457909A
Authority
BE
Belgium
Application number
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.)
Publication of BE457909A publication Critical patent/BE457909A/xx

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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • 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)
BE457909D 1944-12-12 BE457909A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2463727X 1944-12-12

Publications (1)

Publication Number Publication Date
BE457909A true BE457909A (zh)

Family

ID=3895830

Family Applications (1)

Application Number Title Priority Date Filing Date
BE457909D BE457909A (zh) 1944-12-12

Country Status (3)

Country Link
US (1) US2463727A (zh)
BE (1) BE457909A (zh)
FR (1) FR939440A (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL293770A (zh) * 1962-06-08

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1720675A (en) * 1924-02-18 1929-07-16 Philips Nv Manufacture of oxide cathodes
US1961122A (en) * 1928-08-22 1934-05-29 Westinghouse Electric & Mfg Co Thermionic cathode
US2209708A (en) * 1939-10-31 1940-07-30 Rca Corp Cathode manufacture
US2317754A (en) * 1940-07-31 1943-04-27 Gorlich Paul Method of producing secondary electron emitting cathodes

Also Published As

Publication number Publication date
FR939440A (fr) 1948-11-15
US2463727A (en) 1949-03-08

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