DE1234860B - Verfahren zur Impraegnierung von Wolfram-Vorratskathoden - Google Patents

Verfahren zur Impraegnierung von Wolfram-Vorratskathoden

Info

Publication number
DE1234860B
DE1234860B DES89008A DES0089008A DE1234860B DE 1234860 B DE1234860 B DE 1234860B DE S89008 A DES89008 A DE S89008A DE S0089008 A DES0089008 A DE S0089008A DE 1234860 B DE1234860 B DE 1234860B
Authority
DE
Germany
Prior art keywords
barium
tungsten
impregnation
oxide
porous
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.)
Pending
Application number
DES89008A
Other languages
German (de)
English (en)
Inventor
Otto Gustav Koppius
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.)
Semicon Associates Inc
Original Assignee
Semicon Associates Inc
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 Semicon Associates Inc filed Critical Semicon Associates Inc
Publication of DE1234860B publication Critical patent/DE1234860B/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F3/26—Impregnating
    • 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
    • H01J9/047—Cathodes having impregnated bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Solid Thermionic Cathode (AREA)
DES89008A 1963-09-24 1964-01-10 Verfahren zur Impraegnierung von Wolfram-Vorratskathoden Pending DE1234860B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US311174A US3320091A (en) 1963-09-24 1963-09-24 Method for impregnating tungsten dispenser cathodes

Publications (1)

Publication Number Publication Date
DE1234860B true DE1234860B (de) 1967-02-23

Family

ID=23205735

Family Applications (1)

Application Number Title Priority Date Filing Date
DES89008A Pending DE1234860B (de) 1963-09-24 1964-01-10 Verfahren zur Impraegnierung von Wolfram-Vorratskathoden

Country Status (3)

Country Link
US (1) US3320091A (en, 2012)
DE (1) DE1234860B (en, 2012)
NL (2) NL300312A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284522B (de) * 1964-04-16 1968-12-05 Gen Electric Vorratskatode und Verfahren zu ihrer Herstellung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120605B (de) * 1960-09-21 1961-12-28 Siemens Ag Oxydkathode

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US944139A (en) * 1909-10-11 1909-12-21 Adrian Denman Jones Electrode for electric-arc lamps.
US1993187A (en) * 1929-05-04 1935-03-05 Electrons Inc Cold cathode discharge tube
NL91132C (en, 2012) * 1951-11-29
US3118080A (en) * 1959-12-10 1964-01-14 Semicon Associates Inc Tungsten dispenser cathodes and impregnants therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120605B (de) * 1960-09-21 1961-12-28 Siemens Ag Oxydkathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284522B (de) * 1964-04-16 1968-12-05 Gen Electric Vorratskatode und Verfahren zu ihrer Herstellung

Also Published As

Publication number Publication date
NL133280C (en, 2012)
NL300312A (en, 2012)
US3320091A (en) 1967-05-16

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