FR1489755A - Process for the fuel treatment of a thorium oxide electrode - Google Patents

Process for the fuel treatment of a thorium oxide electrode

Info

Publication number
FR1489755A
FR1489755A FR57986A FR57986A FR1489755A FR 1489755 A FR1489755 A FR 1489755A FR 57986 A FR57986 A FR 57986A FR 57986 A FR57986 A FR 57986A FR 1489755 A FR1489755 A FR 1489755A
Authority
FR
France
Prior art keywords
oxide electrode
fuel treatment
thorium oxide
thorium
fuel
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
FR57986A
Other languages
French (fr)
Inventor
Andre Taxil
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.)
Claude Paz et Visseaux SA
Original Assignee
Claude Paz et Visseaux SA
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 Claude Paz et Visseaux SA filed Critical Claude Paz et Visseaux SA
Priority to FR57986A priority Critical patent/FR1489755A/en
Priority to US612506A priority patent/US3510190A/en
Priority to BE693505D priority patent/BE693505A/xx
Priority to DE19671589111 priority patent/DE1589111C3/en
Priority to CH486267A priority patent/CH460186A/en
Priority to GB07360/67A priority patent/GB1166927A/en
Application granted granted Critical
Publication of FR1489755A publication Critical patent/FR1489755A/en
Expired legal-status Critical Current

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)
  • Discharge Lamp (AREA)
FR57986A 1966-04-18 1966-04-18 Process for the fuel treatment of a thorium oxide electrode Expired FR1489755A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR57986A FR1489755A (en) 1966-04-18 1966-04-18 Process for the fuel treatment of a thorium oxide electrode
US612506A US3510190A (en) 1966-04-18 1967-01-30 Method of treating an electrode,of which at least one portion contains thorium oxide in its surface
BE693505D BE693505A (en) 1966-04-18 1967-02-01
DE19671589111 DE1589111C3 (en) 1966-04-18 1967-03-23 Process for the treatment of an electrode for discharge lamps, the surface of which consists at least in part of thorium oxide
CH486267A CH460186A (en) 1966-04-18 1967-04-06 Process for carburizing an electrode at least one portion of which contains thorium oxide on the surface
GB07360/67A GB1166927A (en) 1966-04-18 1967-04-14 Improvements in or relating to the manufacture of electrodes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR57986A FR1489755A (en) 1966-04-18 1966-04-18 Process for the fuel treatment of a thorium oxide electrode

Publications (1)

Publication Number Publication Date
FR1489755A true FR1489755A (en) 1967-07-28

Family

ID=8606469

Family Applications (1)

Application Number Title Priority Date Filing Date
FR57986A Expired FR1489755A (en) 1966-04-18 1966-04-18 Process for the fuel treatment of a thorium oxide electrode

Country Status (5)

Country Link
US (1) US3510190A (en)
BE (1) BE693505A (en)
CH (1) CH460186A (en)
FR (1) FR1489755A (en)
GB (1) GB1166927A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846006A (en) * 1972-02-24 1974-11-05 Picker Corp Method of manufacturing of x-ray tube having thoriated tungsten filament
US5001397A (en) * 1985-07-17 1991-03-19 U.S. Philips Corporation High-pressure gas discharge lamp having electrodes with coil layers having interlocking turns

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1704981A (en) * 1927-08-26 1929-03-12 Lebrun Paul Francois Joseph Method of preparing luminescent tubes
US2401040A (en) * 1942-10-05 1946-05-28 Eitel Mccullough Inc Method of making electronic tubes
US2324559A (en) * 1943-04-05 1943-07-20 Machlett Lab Inc Manufacture of vacuum apparatus
US2591474A (en) * 1950-05-26 1952-04-01 Raytheon Mfg Co Cold cathode discharge device

Also Published As

Publication number Publication date
US3510190A (en) 1970-05-05
GB1166927A (en) 1969-10-15
BE693505A (en) 1967-08-01
CH460186A (en) 1968-07-31
DE1589111B2 (en) 1975-10-30
DE1589111A1 (en) 1970-03-19

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