GB719195A - Improvements in oxide cathodes for electric discharge tubes - Google Patents

Improvements in oxide cathodes for electric discharge tubes

Info

Publication number
GB719195A
GB719195A GB2628/53A GB262853A GB719195A GB 719195 A GB719195 A GB 719195A GB 2628/53 A GB2628/53 A GB 2628/53A GB 262853 A GB262853 A GB 262853A GB 719195 A GB719195 A GB 719195A
Authority
GB
United Kingdom
Prior art keywords
electric discharge
discharge tubes
oxide cathodes
oxides
cathode
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
GB2628/53A
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.)
Egyesuelt Izzolampa es Villamossagi Rt
Original Assignee
Egyesuelt Izzolampa es Villamossagi Rt
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 Egyesuelt Izzolampa es Villamossagi Rt filed Critical Egyesuelt Izzolampa es Villamossagi Rt
Publication of GB719195A publication Critical patent/GB719195A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/02Manufacture of electrodes or electrode systems
    • H01J9/04Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Luminescent Compositions (AREA)
  • Discharge Lamp (AREA)

Abstract

719,195. Cathode materials and processing. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. Jan. 29, 1953 [April 22, 1952], No. 2628/53. Addition to 673,438. Class 39(1) The coating composition containing specified proportions of the oxides of barium strontium and calcium according to the parent Specification contains also zirconium dioxide which may be added thereto or precipitated with the other oxides. The cathode may be used in fluorescent lamps or vacuum tubes.
GB2628/53A 1952-04-22 1953-01-29 Improvements in oxide cathodes for electric discharge tubes Expired GB719195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU719195X 1952-04-22

Publications (1)

Publication Number Publication Date
GB719195A true GB719195A (en) 1954-11-24

Family

ID=10980107

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2628/53A Expired GB719195A (en) 1952-04-22 1953-01-29 Improvements in oxide cathodes for electric discharge tubes

Country Status (1)

Country Link
GB (1) GB719195A (en)

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