BE518639A - - Google Patents

Info

Publication number
BE518639A
BE518639A BE518639DA BE518639A BE 518639 A BE518639 A BE 518639A BE 518639D A BE518639D A BE 518639DA BE 518639 A BE518639 A BE 518639A
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 BE518639A publication Critical patent/BE518639A/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
    • H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive 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)
  • Discharge Lamp (AREA)
BE518639D 1952-03-24 BE518639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL314779X 1952-03-24

Publications (1)

Publication Number Publication Date
BE518639A true BE518639A (en)

Family

ID=19783766

Family Applications (1)

Application Number Title Priority Date Filing Date
BE518639D BE518639A (en) 1952-03-24

Country Status (7)

Country Link
BE (1) BE518639A (en)
CH (1) CH314779A (en)
DE (1) DE974888C (en)
FR (1) FR1073725A (en)
GB (1) GB725450A (en)
IT (1) IT500462A (en)
NL (1) NL168358C (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL24414C (en) * 1926-06-09
DE572700C (en) * 1926-06-09 1933-03-22 Friedrich Meyer Dr Incandescent cathode for discharge vessels
CH128076A (en) * 1926-06-09 1928-10-01 Philips Nv Hot cathode for discharge vessels.
NL23762C (en) * 1928-04-13
DE597580C (en) * 1928-05-01 1934-05-26 Osram G M B H Komm Ges Electric light or ultraviolet radiation tubes
GB311294A (en) * 1928-05-08 1930-08-08 Hans Joachim Spanner Improvements in and relating to electric discharge devices
US2249672A (en) * 1936-12-10 1941-07-15 Gen Electric Discharge device
BE482916A (en) * 1947-06-05
GB650730A (en) * 1947-07-16 1951-02-28 British Thomson Houston Co Ltd Improvements in and relating to electron emitting materials

Also Published As

Publication number Publication date
FR1073725A (en) 1954-09-28
NL168358C (en)
CH314779A (en) 1956-06-30
GB725450A (en) 1955-03-02
IT500462A (en)
DE974888C (en) 1961-05-25

Similar Documents

Publication Publication Date Title
FR1086569A (en)
FR999415A (en)
JPS303264B1 (en)
IT500462A (en)
IT500335A (en)
BE522521A (en)
BE522176A (en)
BE340650A (en)
BE517606A (en)
BE518726A (en)
BE511207A (en)
BE512796A (en)
BE512951A (en)
BE513249A (en)
BE513455A (en)
BE513644A (en)
BE514775A (en)
BE516575A (en)
BE516661A (en)
BE516819A (en)
BE525209A (en)
BE516872A (en)
BE517286A (en)
BE516944A (en)
BE522370A (en)