FR1112390A - Cathodes reserve - Google Patents

Cathodes reserve

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
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 FrancaiseThomson Houston SA
Original Assignee
Compagnie FrancaiseThomson 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
Priority to US382085A priority Critical patent/US2830218A/en
Application filed by Compagnie FrancaiseThomson Houston SA filed Critical Compagnie FrancaiseThomson Houston SA
Application granted granted Critical
Publication of FR1112390A publication Critical patent/FR1112390A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/02Manufacture of electrodes or electrode systems
    • H01J9/04Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042Manufacture, activation of the emissive part
FR1112390D 1953-09-24 1954-09-10 Cathodes reserve Expired FR1112390A (en)

Priority Applications (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 (en) 1956-03-13

Family

ID=23507463

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1112390D Expired FR1112390A (en) 1953-09-24 1954-09-10 Cathodes reserve

Country Status (4)

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

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564257A (en) * 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 (en) * 1959-03-20 1961-08-03 Siemens Ag Indirectly heated cathode with a scheibenfoermigen Emissionsflaeche and with a support film made of seamless tube
US3323916A (en) * 1964-10-23 1967-06-06 Westinghouse Electric Corp Method of making heater assemblies by wet-settling techniques
DE1283402B (en) * 1966-03-29 1968-11-21 Siemens Ag Indirectly heated dispenser cathode for electrical Entladungsgefaesse
DE2245717A1 (en) * 1972-09-18 1974-03-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electrode with a porous sinterkoerper
DE3527360C2 (en) * 1985-07-31 1996-04-18 Licentia Gmbh Supply cathode
GB2188771B (en) * 1986-04-01 1990-12-19 Ceradyne Inc Dispenser cathode and method of manufacture therefor
DE3627384A1 (en) * 1986-08-12 1988-02-18 Siemens Ag Indirectly heated storage cathode, in particular metal-capillary cathode, for electrical discharge vessels
JPH11339633A (en) * 1997-11-04 1999-12-10 Cimeo Precision Co Ltd Impregnated cathode and manufacture therefor and electron gun and electronic tube
DE102010055175B4 (en) * 2010-12-20 2014-07-10 Heraeus Precious Metals Gmbh & Co. Kg Method for producing a medical implant and medical implant

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
NL69486C (en) * 1947-11-26
US2643332A (en) * 1949-03-29 1953-06-23 Hartford Nat Bank & Trust Co High-frequency electron discharge tube system
BE498869A (en) * 1949-10-25
BE512939A (en) * 1951-07-20
NL91132C (en) * 1951-11-29

Also Published As

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

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