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ES206485A1 - MEJORAS INTRODUCIDAS EN LOS CUERPOS CAToDICOS PARA TUBOS DE DESCARGA ELÉCTRICA - Google Patents

MEJORAS INTRODUCIDAS EN LOS CUERPOS CAToDICOS PARA TUBOS DE DESCARGA ELÉCTRICA

Info

Publication number
ES206485A1
ES206485A1 ES0206485A ES206485A ES206485A1 ES 206485 A1 ES206485 A1 ES 206485A1 ES 0206485 A ES0206485 A ES 0206485A ES 206485 A ES206485 A ES 206485A ES 206485 A1 ES206485 A1 ES 206485A1
Authority
ES
Spain
Prior art keywords
alkaline earth
earth metal
metal compounds
refractory
niobium
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
ES0206485A
Other languages
English (en)
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 ES206485A1 publication Critical patent/ES206485A1/es
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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12042—Porous component

Landscapes

  • Discharge Lamp (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

Mejoras introducidas en los cuerpos de cátodo para un tubo de descarga eléctrica que comprenden en su interior una provisión de compuestos de metales alcalinotérreos cuya superficie destinada para la emisión consiste en un metal refractario porque tal como el tungsteno molibdeno tántalo hafnio o niobio caracterizadas por el hecho de que los compuestos de metales alcalinotérreos que no son óxidos tienen una composición tal que al ser calentados ellos reaccionan con el metal refractarios con liberación simultánea de metal alcalinotérreo libre
ES0206485A 1951-11-29 1952-11-26 MEJORAS INTRODUCIDAS EN LOS CUERPOS CAToDICOS PARA TUBOS DE DESCARGA ELÉCTRICA Expired ES206485A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US258892A US2700118A (en) 1951-11-29 1951-11-29 Incandescible cathode

Publications (1)

Publication Number Publication Date
ES206485A1 true ES206485A1 (es) 1953-01-16

Family

ID=22982585

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0206485A Expired ES206485A1 (es) 1951-11-29 1952-11-26 MEJORAS INTRODUCIDAS EN LOS CUERPOS CAToDICOS PARA TUBOS DE DESCARGA ELÉCTRICA

Country Status (8)

Country Link
US (1) US2700118A (es)
BE (1) BE515834A (es)
CH (1) CH314129A (es)
DE (1) DE973193C (es)
ES (1) ES206485A1 (es)
FR (1) FR1073994A (es)
GB (1) GB734209A (es)
NL (1) NL91132C (es)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL95281C (es) * 1952-04-09
BE525821A (es) * 1953-01-19
NL97850C (es) * 1953-08-14
NL96853C (es) * 1953-09-24
US2899592A (en) * 1953-11-18 1959-08-11 coppola
NL85507C (es) * 1953-12-22
US2881512A (en) * 1954-06-16 1959-04-14 Cie Generale De Telegraphite S Composition for sintered barium cathodes
NL198145A (es) * 1954-06-17
NL94233C (es) * 1954-12-06
US2931934A (en) * 1955-02-05 1960-04-05 Egyesuelt Izzolampa Indirectly heated supply cathode
BE545032A (es) * 1955-02-09
BE559450A (es) * 1956-07-24
NL101006C (es) * 1956-09-05
US2874077A (en) * 1957-10-23 1959-02-17 Rauland Corp Thermionic cathodes
US2957231A (en) * 1958-08-01 1960-10-25 Gen Electric Electrode for electric discharge device
US3118080A (en) * 1959-12-10 1964-01-14 Semicon Associates Inc Tungsten dispenser cathodes and impregnants therefor
DE1273075B (de) * 1961-07-08 1968-07-18 Funkwerk Erfurt Veb K Verfahren zur Herstellung von Oxydkathoden
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
NL300312A (es) * 1963-09-24
US3275435A (en) * 1963-11-01 1966-09-27 Gen Electric Method of production of a dispenser cathode
US3269804A (en) * 1963-11-01 1966-08-30 Gen Electric Dispenser cathode and method for the production thereof
US3303378A (en) * 1964-06-17 1967-02-07 Chorney Paul Monolithic cathode structure
US3458913A (en) * 1966-04-19 1969-08-05 Siemens Ag Supply cathode for electrical discharge vessels and method for its production
US3623136A (en) * 1968-05-10 1971-11-23 Hitachi Ltd Light-source lamp for atomic light-absorption analysis
US3489554A (en) * 1969-03-13 1970-01-13 Sylvania Electric Prod Art of producing emitter-type electrode structures
US4097762A (en) * 1975-08-14 1978-06-27 International Telephone & Telegraph Corporation Xenon arc discharge lamp having a particular electrode composition and wherein the arc discharge is obtained without heating the electrode
AU527753B2 (en) * 1978-09-07 1983-03-24 Tokyo Shibaura Denki Kabushiki Kaisha Discharge lamp electrode
GB1446507A (en) * 1978-09-15 1976-08-18 V N I Pk I T I Elektrosvarochn Electrode for plasma arc working of conductive materials
CH659916A5 (de) * 1983-03-31 1987-02-27 Inst Radiotekh Elektron Katode und gasentladungsroehre, ausgefuehrt auf der basis dieser katode.
US5007874A (en) * 1990-10-15 1991-04-16 The United States Of America As Represented By The Secretary Of The Army Method of making a cathode from tungsten and iridium powders using a reaction product from reacting a group III A metal with barium peroxide as an impregnant

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1931254A (en) * 1928-02-28 1933-10-17 Electrons Inc Electronic tube
US1846242A (en) * 1929-01-05 1932-02-23 Argco Tube And Television Corp Electrode and method of making the same
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
DE669029C (de) * 1934-06-29 1938-12-15 Siemens Schuckertwerke Akt Ges Selbstaufheizkathode
GB445575A (en) * 1934-10-12 1936-04-14 Gen Electric Co Ltd Improvements in or relating to electric discharge devices
AT156720B (de) * 1936-09-03 1939-08-10 Philips Nv Glühelektrode für elektrische Entladungsröhren.
GB485410A (en) * 1937-03-17 1938-05-19 Gen Electric Co Ltd Improvements in cathodes for electric discharge devices
FR903976A (fr) * 1942-08-19 1945-10-23 Fides Gmbh Perfectionnements aux cathodes destinées à la production d'un faisceau électronique
US2389060A (en) * 1943-08-13 1945-11-13 Callite Tungsten Corp Refractory body of high electronic emission
BE486002A (es) * 1947-11-26

Also Published As

Publication number Publication date
CH314129A (de) 1956-05-31
DE973193C (de) 1959-12-17
US2700118A (en) 1955-01-18
FR1073994A (fr) 1954-09-30
GB734209A (en) 1955-07-27
BE515834A (es)
NL91132C (es)

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