NL94233C - - Google Patents

Info

Publication number
NL94233C
NL94233C NL94233DA NL94233C NL 94233 C NL94233 C NL 94233C NL 94233D A NL94233D A NL 94233DA NL 94233 C NL94233 C NL 94233C
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 NL94233C publication Critical patent/NL94233C/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
NL94233D 1954-12-06 NL94233C (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US473386A US2813220A (en) 1954-12-06 1954-12-06 Indirectly heated cathode

Publications (1)

Publication Number Publication Date
NL94233C true NL94233C (es)

Family

ID=23879314

Family Applications (1)

Application Number Title Priority Date Filing Date
NL94233D NL94233C (es) 1954-12-06

Country Status (8)

Country Link
US (1) US2813220A (es)
BE (1) BE543391A (es)
CH (1) CH336905A (es)
DE (1) DE1039141B (es)
ES (1) ES225387A1 (es)
FR (1) FR1143215A (es)
GB (1) GB793726A (es)
NL (1) NL94233C (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE548876A (es) * 1953-08-14
US3201639A (en) * 1955-02-09 1965-08-17 Philips Corp Thermionic dispenser cathode
US2945295A (en) * 1957-12-20 1960-07-19 Westinghouse Electric Corp High temperature metallic joint
US3018404A (en) * 1958-03-27 1962-01-23 Raytheon Co Electron tube cathodes
US2975320A (en) * 1958-12-03 1961-03-14 Rca Corp Low-temperature plasma source
US2945150A (en) * 1958-12-11 1960-07-12 Gen Electric Thermionic cathodes and methods of making
US2975322A (en) * 1958-12-29 1961-03-14 Raytheon Co Indirectly heated cathodes
US3117249A (en) * 1960-02-16 1964-01-07 Sperry Rand Corp Embedded heater cathode
US3134924A (en) * 1960-07-05 1964-05-26 Monsanto Co Emissive materials of a metal matrix with molecularly dispersed additives
US3258636A (en) * 1961-09-01 1966-06-28 Electron emitter with activator of sill cide, boride or carbide of solid solu- tion of barium and at least one other alkaline earth metal
US3373307A (en) * 1963-11-21 1968-03-12 Philips Corp Dispenser cathode
DE2842079A1 (de) * 1978-09-27 1980-04-03 Siemens Ag Vorratskathode, insbesondere metall- kapillar-kathode
JPS5652835A (en) * 1979-10-01 1981-05-12 Hitachi Ltd Impregnated cathode
FR2494035A1 (fr) * 1980-11-07 1982-05-14 Thomson Csf Cathode thermo-electronique pour tube hyperfrequences et tube incorporant une telle cathode
KR930007461B1 (ko) * 1991-04-23 1993-08-11 주식회사 금성사 함침형 음극 제조방법
FR2683090A1 (fr) * 1991-10-25 1993-04-30 Europ Composants Electron Cathode a reserve et procede de fabrication d'une telle cathode.
KR930014673A (ko) * 1991-12-20 1993-07-23 김정배 함침형 음극 구조체 및 그 제조방법
DE10254697A1 (de) * 2002-11-23 2004-06-03 Philips Intellectual Property & Standards Gmbh Vakuumelektronenröhre mit Oxidkathode
CN114340124B (zh) * 2021-12-30 2024-02-27 中国科学院合肥物质科学研究院 一种钠离子发射体及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT174993B (de) * 1951-02-08 1953-05-26 Philips Nv Elektrische Entladungsröhre mit einer aus einem porösen Körper aus hochschmelzendem Metall bestehenden Kathode und Verfahren zur Herstellung einer solchen Kathode
AT176924B (de) * 1951-03-22 1953-12-10 Philips Nv Verfahren zur Herstellung einer Kathode für eine elektrische Entladungsröhre, die im Inneren einen Vorrat Erdalkalimetallverbindungen enthält und deren Wand wenigstens teilweise aus einem durch Pressen und Sintern hergestellten porösen Körper besteht, und durch dieses Verfahren hergestellte Kathode
DE890390C (de) * 1951-07-12 1953-09-17 Siemens Ag Kathode fuer elektrische Entladungsgefaesse
NL91131C (es) * 1951-11-29
BE515834A (es) * 1951-11-29
BE515835A (es) * 1951-11-29
AT180338B (de) * 1952-02-27 1954-11-25 Philips Nv Kathode für eine elektrische Entladungsröhre und Verfahren zur Herstellung dieser Kathode
AT183488B (de) * 1953-06-11 1955-10-10 Philips Nv Verfahren zur Herstellung eines Kathodenkörpers für eine elektrische Entladungsröhre

Also Published As

Publication number Publication date
CH336905A (de) 1959-03-15
DE1039141B (de) 1958-09-18
GB793726A (en) 1958-04-23
BE543391A (es)
ES225387A1 (es) 1956-02-01
FR1143215A (fr) 1957-09-27
US2813220A (en) 1957-11-12

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