FR1154300A - Electronic cathode improvements - Google Patents

Electronic cathode improvements

Info

Publication number
FR1154300A
FR1154300A FR1154300DA FR1154300A FR 1154300 A FR1154300 A FR 1154300A FR 1154300D A FR1154300D A FR 1154300DA FR 1154300 A FR1154300 A FR 1154300A
Authority
FR
France
Prior art keywords
electronic cathode
cathode
electronic
cathode improvements
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR1154300A publication Critical patent/FR1154300A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/939—Molten or fused coating
FR1154300D 1955-06-28 1956-06-27 Electronic cathode improvements Expired FR1154300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US518548A US3041209A (en) 1955-06-28 1955-06-28 Method of making a thermionic cathode

Publications (1)

Publication Number Publication Date
FR1154300A true FR1154300A (en) 1958-04-04

Family

ID=24064425

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1154300D Expired FR1154300A (en) 1955-06-28 1956-06-27 Electronic cathode improvements

Country Status (2)

Country Link
US (1) US3041209A (en)
FR (1) FR1154300A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA648939A (en) * 1959-12-21 1962-09-18 International Business Machines Corporation Superconductive circuits
NL282170A (en) * 1961-08-17
US3213308A (en) * 1961-11-29 1965-10-19 Westinghouse Electric Corp Ultraviolet radiation detector
US3327158A (en) * 1963-06-26 1967-06-20 Sylvania Electric Prod Semi-dispenser cathode with overlying emissive coating
US3400294A (en) * 1964-12-07 1968-09-03 Gen Electric Heated cathode and method of manufacture
US3514324A (en) * 1967-05-01 1970-05-26 Kopco Ind Tungsten coating of dispenser cathode
US3903589A (en) * 1972-01-31 1975-09-09 Mallory & Co Inc P R Method for fabrication of anodes
US4415835A (en) * 1981-06-22 1983-11-15 General Electric Company Electron emissive coatings for electric discharge devices
US4532452A (en) * 1983-10-31 1985-07-30 Rca Corporation Cathode structure for a cathodoluminescent display devices
US10497530B2 (en) * 2015-04-10 2019-12-03 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Thermionic tungsten/scandate cathodes and methods of making the same

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700288A (en) * 1927-10-18 1929-01-29 Corning Glass Works Method of making solid cast refractory articles
NL28872C (en) * 1928-11-30
US2001848A (en) * 1932-10-03 1935-05-21 August R Nyquist Electrode for arc welding
US2103033A (en) * 1934-08-10 1937-12-21 Gen Electric Electron emissive electrode
GB474064A (en) * 1935-01-17 1937-10-25 Drake Mcgee & Hallsted Inc Improvements in or relating to metal surfacing
NL48128C (en) * 1935-02-23
US2204391A (en) * 1939-04-29 1940-06-11 Rca Corp Cathode for electron discharge devices
NL59008C (en) * 1941-07-03
US2339392A (en) * 1942-10-06 1944-01-18 Rca Corp Cathode
US2417730A (en) * 1942-11-30 1947-03-18 Eitel Mccullough Inc Electron tube and method of making same
US2399773A (en) * 1943-09-02 1946-05-07 Sidney J Waintrob Method of making electrical rectifiers and the like
US2576129A (en) * 1944-12-20 1951-11-27 Levin Irvin Nonemitting electron tube grid
US2557372A (en) * 1948-02-21 1951-06-19 Westinghouse Electric Corp Manufacture of thoria cathodes
US2636856A (en) * 1948-06-29 1953-04-28 Mallory & Co Inc P R Electrode for electrochemical oxidation
US2667427A (en) * 1951-07-27 1954-01-26 Gen Electric Method of metalizing a ceramic member
IT500079A (en) * 1952-02-27
US2768099A (en) * 1952-10-16 1956-10-23 Gibson Electric Company Method of making powdered compacts
US2757104A (en) * 1953-04-15 1956-07-31 Metalholm Engineering Corp Process of forming precision resistor
US2764511A (en) * 1953-08-28 1956-09-25 Sylvania Electric Prod Filamentary cathode and method of making same
US2798010A (en) * 1955-05-23 1957-07-02 Sylvania Electric Prod Method of manufacturing indirectly heated cathodes

Also Published As

Publication number Publication date
US3041209A (en) 1962-06-26

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