NL97571C - - Google Patents

Info

Publication number
NL97571C
NL97571C NL97571DA NL97571C NL 97571 C NL97571 C NL 97571C NL 97571D A NL97571D A NL 97571DA NL 97571 C NL97571 C NL 97571C
Authority
NL
Netherlands
Application number
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.)
Publication of NL97571C publication Critical patent/NL97571C/xx

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28Dispenser-type cathodes, e.g. L-cathode
NL97571D 1953-11-18 NL97571C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US345392XA 1953-11-18 1953-11-18

Publications (1)

Publication Number Publication Date
NL97571C true NL97571C (de)

Family

ID=21877047

Family Applications (1)

Application Number Title Priority Date Filing Date
NL97571D NL97571C (de) 1953-11-18

Country Status (7)

Country Link
US (1) US2899592A (de)
BE (1) BE533455A (de)
CH (1) CH345392A (de)
DE (1) DE1043519B (de)
FR (1) FR1113555A (de)
GB (1) GB777142A (de)
NL (1) NL97571C (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL261666A (de) * 1960-02-25
US3558966A (en) * 1967-03-01 1971-01-26 Semicon Associates Inc Directly heated dispenser cathode
US3693007A (en) * 1970-05-25 1972-09-19 Egyesuelt Izzolampa Oxide cathode for an electric discharge device
US4417173A (en) * 1980-12-09 1983-11-22 E M I-Varian Limited Thermionic electron emitters and methods of making them

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1954474A (en) * 1927-05-20 1934-04-10 Espe Werner Glow cathode
US2085605A (en) * 1934-05-11 1937-06-29 Gen Electric Thermionic cathode for electric discharge devices
US2121589A (en) * 1934-06-28 1938-06-21 Westinghouse Electric & Mfg Co Emissive incandescent cathode
US2147447A (en) * 1936-09-21 1939-02-14 Siemens Ag Glow cathode
DE707255C (de) * 1936-09-21 1941-06-17 Siemens Schuckertwerke Akt Ges Gluehkathode hoher Leistung, insbesondere fuer gas- oder dampfgefuellte Entladungsgefaese
US2180988A (en) * 1937-06-16 1939-11-21 Gen Electric Electrode for electric discharge devices
US2389060A (en) * 1943-08-13 1945-11-13 Callite Tungsten Corp Refractory body of high electronic emission
US2473550A (en) * 1947-08-19 1949-06-21 Raytheon Mfg Co Directly heated cathode
BE486002A (de) * 1947-11-26
BE498869A (de) * 1949-10-25
US2741717A (en) * 1951-06-14 1956-04-10 Siemens Ag Dispenser type cathode having gettercoated parts
DE895479C (de) * 1951-11-20 1953-11-02 Siemens Ag Kathode fuer elektrische Entladungsgefaesse
NL91131C (de) * 1951-11-29
NL91132C (de) * 1951-11-29
NL96177C (de) * 1952-02-27

Also Published As

Publication number Publication date
CH345392A (de) 1960-03-31
FR1113555A (fr) 1956-03-30
US2899592A (en) 1959-08-11
GB777142A (en) 1957-06-19
BE533455A (de)
DE1043519B (de) 1958-11-13

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