FR1112390A - Cathodes à réserve - Google Patents

Cathodes à réserve

Info

Publication number
FR1112390A
FR1112390A FR1112390DA FR1112390A FR 1112390 A FR1112390 A FR 1112390A FR 1112390D A FR1112390D A FR 1112390DA FR 1112390 A FR1112390 A FR 1112390A
Authority
FR
France
Prior art keywords
cathodes
reserve
reserve cathodes
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
English (en)
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 FR1112390A publication Critical patent/FR1112390A/fr
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Powder Metallurgy (AREA)
FR1112390D 1953-09-24 1954-09-10 Cathodes à réserve Expired FR1112390A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US382085A US2830218A (en) 1953-09-24 1953-09-24 Dispenser cathodes and methods of making them

Publications (1)

Publication Number Publication Date
FR1112390A true FR1112390A (fr) 1956-03-13

Family

ID=23507463

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1112390D Expired FR1112390A (fr) 1953-09-24 1954-09-10 Cathodes à réserve

Country Status (4)

Country Link
US (1) US2830218A (enrdf_load_stackoverflow)
FR (1) FR1112390A (enrdf_load_stackoverflow)
GB (1) GB757272A (enrdf_load_stackoverflow)
NL (1) NL96853C (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564257A (enrdf_load_stackoverflow) * 1957-01-26
US2945150A (en) * 1958-12-11 1960-07-12 Gen Electric Thermionic cathodes and methods of making
US3045320A (en) * 1959-03-12 1962-07-24 Raytheon Co Impregnated cathodes
DE1112209B (de) * 1959-03-20 1961-08-03 Siemens Ag Mittelbar geheizte Kathode mit einer scheibenfoermigen Emissionsflaeche und mit einer Halterung aus nahtlosem Folie-Rohr
US3323916A (en) * 1964-10-23 1967-06-06 Westinghouse Electric Corp Method of making heater assemblies by wet-settling techniques
DE1283402B (de) * 1966-03-29 1968-11-21 Siemens Ag Mittelbar geheizte Vorratskathode fuer elektrische Entladungsgefaesse
DE2245717A1 (de) * 1972-09-18 1974-03-28 Patra Patent Treuhand Elektrode mit einem poroesen sinterkoerper
DE3527360C2 (de) * 1985-07-31 1996-04-18 Licentia Gmbh Vorratskathode
GB2188771B (en) * 1986-04-01 1990-12-19 Ceradyne Inc Dispenser cathode and method of manufacture therefor
DE3627384A1 (de) * 1986-08-12 1988-02-18 Siemens Ag Indirekt geheizte vorratskathode, insbesondere metall-kapillar-kathode, fuer elektrische entladungsgefaesse
JPH11339633A (ja) * 1997-11-04 1999-12-10 Sony Corp 含浸型陰極およびその製造方法、並びに電子銃および電子管
DE102010055175B4 (de) * 2010-12-20 2014-07-10 Heraeus Precious Metals Gmbh & Co. Kg Verfahren zum Herstellen eines medizinischen Implantats und medizinisches Implantat

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2121589A (en) * 1934-06-28 1938-06-21 Westinghouse Electric & Mfg Co Emissive incandescent cathode
US2460738A (en) * 1946-04-17 1949-02-01 Gen Electric Electrode construction
BE486002A (enrdf_load_stackoverflow) * 1947-11-26
US2643332A (en) * 1949-03-29 1953-06-23 Hartford Nat Bank & Trust Co High-frequency electron discharge tube system
BE498869A (enrdf_load_stackoverflow) * 1949-10-25
NL80924C (enrdf_load_stackoverflow) * 1951-07-20
BE515834A (enrdf_load_stackoverflow) * 1951-11-29

Also Published As

Publication number Publication date
NL96853C (enrdf_load_stackoverflow)
US2830218A (en) 1958-04-08
GB757272A (en) 1956-09-19

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