FR1006991A - Method and equipment for the application of electron-emitting materials to cathodes - Google Patents

Method and equipment for the application of electron-emitting materials to cathodes

Info

Publication number
FR1006991A
FR1006991A FR1006991DA FR1006991A FR 1006991 A FR1006991 A FR 1006991A FR 1006991D A FR1006991D A FR 1006991DA FR 1006991 A FR1006991 A FR 1006991A
Authority
FR
France
Prior art keywords
cathodes
electron
equipment
application
emitting materials
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
Other languages
French (fr)
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR1006991A publication Critical patent/FR1006991A/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
    • 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
    • H01J9/045—Activation of assembled cathode
    • 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
    • H01J9/06—Machines therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Road Signs Or Road Markings (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
FR1006991D 1948-12-22 1949-12-22 Method and equipment for the application of electron-emitting materials to cathodes Expired FR1006991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66642A US2664361A (en) 1948-12-22 1948-12-22 Method and apparatus for applying electron emission material

Publications (1)

Publication Number Publication Date
FR1006991A true FR1006991A (en) 1952-04-29

Family

ID=22070770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1006991D Expired FR1006991A (en) 1948-12-22 1949-12-22 Method and equipment for the application of electron-emitting materials to cathodes

Country Status (6)

Country Link
US (1) US2664361A (en)
BE (1) BE492888A (en)
DE (1) DE959574C (en)
FR (1) FR1006991A (en)
GB (1) GB692479A (en)
NL (1) NL77446C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785341A (en) * 1968-07-11 1974-01-15 Western Electric Co Apparatus for applying liquid to articles without touching the articles
US4382980A (en) * 1979-03-07 1983-05-10 E. I. Du Pont De Nemours And Company Magnesium compositions and process for forming MGO film
DE4415748C2 (en) * 1994-05-04 1998-08-13 Matsushita Electric Works Ltd Electrode for a fluorescent lamp

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US448888A (en) * 1891-03-24 Pomeroy l
US781025A (en) * 1903-06-13 1905-01-31 Gen Electric Process of insulating coils.
US1695899A (en) * 1922-09-27 1928-12-18 Westinghouse Electric & Mfg Co Electron-emitting element
US2329024A (en) * 1940-11-23 1943-09-07 Sylvania Electric Prod Cathode coating machine
US2362510A (en) * 1942-01-03 1944-11-14 Raytheon Mfg Co Emissive filament and method of making
US2363055A (en) * 1942-01-14 1944-11-21 Gen Electric Coating apparatus
US2431135A (en) * 1944-03-29 1947-11-18 Westinghouse Electric Corp Apparatus for coating cathodes

Also Published As

Publication number Publication date
DE959574C (en) 1957-03-07
BE492888A (en)
NL77446C (en)
US2664361A (en) 1953-12-29
GB692479A (en) 1953-06-10

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