BE486753A - - Google Patents

Info

Publication number
BE486753A
BE486753A BE486753DA BE486753A BE 486753 A BE486753 A BE 486753A BE 486753D A BE486753D A BE 486753DA BE 486753 A BE486753 A BE 486753A
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 BE486753A publication Critical patent/BE486753A/xx

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
    • 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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/027—Construction of the gun or parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
BE486753D 1948-01-15 BE486753A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2402A US2499192A (en) 1948-01-15 1948-01-15 Dispenser type cathode

Publications (1)

Publication Number Publication Date
BE486753A true BE486753A (de)

Family

ID=21700589

Family Applications (1)

Application Number Title Priority Date Filing Date
BE486753D BE486753A (de) 1948-01-15

Country Status (4)

Country Link
US (1) US2499192A (de)
BE (1) BE486753A (de)
FR (1) FR979177A (de)
GB (1) GB685444A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719244A (en) * 1952-01-25 1955-09-27 Westinghouse Electric Corp Electrical discharge tube
BE519027A (de) * 1952-04-09
FR1078606A (fr) * 1953-04-02 1954-11-19 Csf Perfectionnements aux cathodes émissives
US3113236A (en) * 1959-06-23 1963-12-03 Philips Corp Oxide dispenser type cathode
US3105917A (en) * 1960-02-11 1963-10-01 Philips Corp Electric discharge device comprising an activated cold cathode
DE1217503B (de) * 1964-12-02 1966-05-26 Siemens Ag Vorratskathode fuer elektrische Entladungsgefaesse
US3405303A (en) * 1964-12-29 1968-10-08 Sylvania Electric Prod Arc discharge tube having an electrode which contains a light-emitting metal
US3706115A (en) * 1971-02-09 1972-12-19 Robert F Bleile Staple for sod and erosion control mattings
US4243624A (en) * 1979-05-21 1981-01-06 Exxon Research & Engineering Co. Method of making cathodes derived from ammonium-metal-chalcogen compounds

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL24414C (de) * 1926-06-09
US1813704A (en) * 1928-06-26 1931-07-07 Westinghouse Lamp Co Cathode
US1946603A (en) * 1929-05-09 1934-02-13 Electrons Inc Cathode for electrical discharge devices
US2007932A (en) * 1930-08-23 1935-07-09 Sirian Lamp Co Surge arrester
US2007926A (en) * 1930-10-21 1935-07-09 Sirian Lamp Co Light emitting unit
US2107945A (en) * 1934-11-20 1938-02-08 Gen Electric Cathode structure
US2175345A (en) * 1935-07-12 1939-10-10 Gen Electric Electric gaseous discharge device

Also Published As

Publication number Publication date
US2499192A (en) 1950-02-28
FR979177A (fr) 1951-04-23
GB685444A (en) 1953-01-07

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