FR1201432A - Pressed cathode and its manufacturing process - Google Patents

Pressed cathode and its manufacturing process

Info

Publication number
FR1201432A
FR1201432A FR1201432DA FR1201432A FR 1201432 A FR1201432 A FR 1201432A FR 1201432D A FR1201432D A FR 1201432DA FR 1201432 A FR1201432 A FR 1201432A
Authority
FR
France
Prior art keywords
manufacturing process
pressed cathode
cathode
pressed
manufacturing
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.)
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
Application granted granted Critical
Publication of FR1201432A publication Critical patent/FR1201432A/en
Expired 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
FR1201432D 1956-09-05 1957-09-03 Pressed cathode and its manufacturing process Expired FR1201432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US608130A US2929133A (en) 1956-09-05 1956-09-05 Dispenser cathode

Publications (1)

Publication Number Publication Date
FR1201432A true FR1201432A (en) 1959-12-30

Family

ID=24435167

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1201432D Expired FR1201432A (en) 1956-09-05 1957-09-03 Pressed cathode and its manufacturing process

Country Status (6)

Country Link
US (1) US2929133A (en)
BE (1) BE560502A (en)
DE (1) DE1040701B (en)
FR (1) FR1201432A (en)
GB (1) GB816997A (en)
NL (1) NL101006C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055763A (en) * 1958-07-10 1962-09-25 Jack R Kreigh Metal-aggregate product
CH396213A (en) * 1961-01-10 1965-07-31 Ciba Geigy Process for the production of anodes for electrolytic capacitors
US3269804A (en) * 1963-11-01 1966-08-30 Gen Electric Dispenser cathode and method for the production thereof
US3275435A (en) * 1963-11-01 1966-09-27 Gen Electric Method of production of a dispenser cathode
DE1539156B2 (en) * 1965-06-30 1976-09-23 Siemens AG, 1000 Berlin und 8000 München GETTER PUMP ARRANGEMENT FOR ELECTRON BEAM TUBES AND METHOD FOR MANUFACTURING GETTERABLE SINTER SHAPED BODIES
US3558966A (en) * 1967-03-01 1971-01-26 Semicon Associates Inc Directly heated dispenser cathode
FR2469792A1 (en) * 1979-11-09 1981-05-22 Thomson Csf THERMO-IONIC CATHODE, ITS MANUFACTURING METHOD, AND ELECTRONIC TUBE INCORPORATING SUCH A CATHODE
US4837480A (en) * 1988-03-28 1989-06-06 Hughes Aircraft Company Simplified process for fabricating dispenser cathodes
DE3913338C2 (en) * 1989-04-22 1999-12-02 Aeg Elektronische Roehren Gmbh Investment material, in particular for cathodes of electron tubes, method for producing such an investment material and use of such an investment material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1552310A (en) * 1923-07-24 1925-09-01 Gen Electric Electrode for discharge tubes
US1720000A (en) * 1926-07-28 1929-07-09 Westinghouse Lamp Co Vibration and sag resistant filament
US1883898A (en) * 1928-12-14 1932-10-25 Westinghouse Electric & Mfg Co Thermionic cathode
US1895354A (en) * 1929-10-23 1933-01-24 Gen Electric Resintered hard metal composition
US2179960A (en) * 1931-11-28 1939-11-14 Schwarzkopf Paul Agglomerated material in particular for electrical purposes and shaped bodies made therefrom
US2246166A (en) * 1939-02-02 1941-06-17 Gen Electric Sintered hard-metal alloy for implements and tools
BE515834A (en) * 1951-11-29
AT187993B (en) * 1953-11-18 1956-12-10 Philips Nv Cathode body for an electric discharge tube

Also Published As

Publication number Publication date
GB816997A (en) 1959-07-22
DE1040701B (en) 1958-10-09
US2929133A (en) 1960-03-22
NL101006C (en)
BE560502A (en)

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