DE1028697B - Verfahren zur Herstellung einer Vorratskathode - Google Patents

Verfahren zur Herstellung einer Vorratskathode

Info

Publication number
DE1028697B
DE1028697B DEN8535A DEN0008535A DE1028697B DE 1028697 B DE1028697 B DE 1028697B DE N8535 A DEN8535 A DE N8535A DE N0008535 A DEN0008535 A DE N0008535A DE 1028697 B DE1028697 B DE 1028697B
Authority
DE
Germany
Prior art keywords
cavity
supply
cathode
carbonates
alkaline earth
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
DEN8535A
Other languages
German (de)
English (en)
Inventor
Hendrikus Johannes Lemmens
Marinus Jacobus Jansen
Pieter Willem Haayman
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE1028697B publication Critical patent/DE1028697B/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Microwave Tubes (AREA)
DEN8535A 1953-02-26 1954-02-24 Verfahren zur Herstellung einer Vorratskathode Pending DE1028697B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL319758X 1953-02-26

Publications (1)

Publication Number Publication Date
DE1028697B true DE1028697B (de) 1958-04-24

Family

ID=19783943

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN8535A Pending DE1028697B (de) 1953-02-26 1954-02-24 Verfahren zur Herstellung einer Vorratskathode

Country Status (6)

Country Link
US (1) US2867742A (en, 2012)
BE (1) BE526781A (en, 2012)
CH (1) CH319758A (en, 2012)
DE (1) DE1028697B (en, 2012)
FR (1) FR1093864A (en, 2012)
GB (1) GB739645A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253818B (de) * 1963-05-08 1967-11-09 Hitachi Ltd Gasentladungsroehre

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965793A (en) * 1959-05-12 1960-12-20 Westinghouse Electric Corp Electron device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE669029C (de) * 1934-06-29 1938-12-15 Siemens Schuckertwerke Akt Ges Selbstaufheizkathode
DE674258C (de) * 1934-01-27 1939-04-11 Telefunken Gmbh Indirekt geheizte Gluehkathode fuer Kathodenstrahlroehren und Verfahren zu ihrer Herstellung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB445575A (en) * 1934-10-12 1936-04-14 Gen Electric Co Ltd Improvements in or relating to electric discharge devices
US2175345A (en) * 1935-07-12 1939-10-10 Gen Electric Electric gaseous discharge device
US2171238A (en) * 1937-09-02 1939-08-29 Westinghouse Electric & Mfg Co Discharge device and electrode
US2492142A (en) * 1945-10-17 1949-12-27 Kenneth J Germeshausen Electric system embodying coldcathode gaseous discharge device
NL69486C (en, 2012) * 1947-11-26
US2721372A (en) * 1951-06-30 1955-10-25 Philips Corp Incandescible cathodes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE674258C (de) * 1934-01-27 1939-04-11 Telefunken Gmbh Indirekt geheizte Gluehkathode fuer Kathodenstrahlroehren und Verfahren zu ihrer Herstellung
DE669029C (de) * 1934-06-29 1938-12-15 Siemens Schuckertwerke Akt Ges Selbstaufheizkathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253818B (de) * 1963-05-08 1967-11-09 Hitachi Ltd Gasentladungsroehre

Also Published As

Publication number Publication date
US2867742A (en) 1959-01-06
FR1093864A (fr) 1955-05-10
BE526781A (en, 2012)
GB739645A (en) 1955-11-02
CH319758A (de) 1957-02-28

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